diff options
Diffstat (limited to 'passes/techmap')
37 files changed, 6585 insertions, 1617 deletions
diff --git a/passes/techmap/Makefile.inc b/passes/techmap/Makefile.inc index 140a9f892..369c9de64 100644 --- a/passes/techmap/Makefile.inc +++ b/passes/techmap/Makefile.inc @@ -7,13 +7,18 @@ OBJS += passes/techmap/libparse.o ifeq ($(ENABLE_ABC),1) OBJS += passes/techmap/abc.o +OBJS += passes/techmap/abc9.o +OBJS += passes/techmap/abc9_exe.o +OBJS += passes/techmap/abc9_ops.o ifneq ($(ABCEXTERNAL),) passes/techmap/abc.o: CXXFLAGS += -DABCEXTERNAL='"$(ABCEXTERNAL)"' +passes/techmap/abc9.o: CXXFLAGS += -DABCEXTERNAL='"$(ABCEXTERNAL)"' endif endif ifneq ($(SMALL),1) OBJS += passes/techmap/iopadmap.o +OBJS += passes/techmap/clkbufmap.o OBJS += passes/techmap/hilomap.o OBJS += passes/techmap/extract.o OBJS += passes/techmap/extract_fa.o @@ -35,6 +40,9 @@ OBJS += passes/techmap/insbuf.o OBJS += passes/techmap/attrmvcp.o OBJS += passes/techmap/attrmap.o OBJS += passes/techmap/zinit.o +OBJS += passes/techmap/dff2dffs.o +OBJS += passes/techmap/flowmap.o +OBJS += passes/techmap/extractinv.o endif GENFILES += passes/techmap/techmap.inc @@ -57,4 +65,3 @@ yosys-filterlib$(EXE): passes/techmap/filterlib.o $(Q) mkdir -p $(dir $@) $(P) $(LD) -o yosys-filterlib$(EXE) $(LDFLAGS) $^ $(LDLIBS) endif - diff --git a/passes/techmap/abc.cc b/passes/techmap/abc.cc index be86f642a..581652a41 100644 --- a/passes/techmap/abc.cc +++ b/passes/techmap/abc.cc @@ -49,6 +49,7 @@ #include <stdlib.h> #include <stdio.h> #include <string.h> +#include <cctype> #include <cerrno> #include <sstream> #include <climits> @@ -60,6 +61,10 @@ #include "frontends/blif/blifparse.h" +#ifdef YOSYS_LINK_ABC +extern "C" int Abc_RealMain(int argc, char *argv[]); +#endif + USING_YOSYS_NAMESPACE PRIVATE_NAMESPACE_BEGIN @@ -77,6 +82,7 @@ enum class gate_type_t { G_ANDNOT, G_ORNOT, G_MUX, + G_NMUX, G_AOI3, G_OAI3, G_AOI4, @@ -107,7 +113,7 @@ std::vector<gate_t> signal_list; std::map<RTLIL::SigBit, int> signal_map; std::map<RTLIL::SigBit, RTLIL::State> signal_init; pool<std::string> enabled_gates; -bool recover_init; +bool recover_init, cmos_cost; bool clk_polarity, en_polarity; RTLIL::SigSpec clk_sig, en_sig; @@ -160,39 +166,39 @@ void mark_port(RTLIL::SigSpec sig) void extract_cell(RTLIL::Cell *cell, bool keepff) { - if (cell->type == "$_DFF_N_" || cell->type == "$_DFF_P_") + if (cell->type.in(ID($_DFF_N_), ID($_DFF_P_))) { - if (clk_polarity != (cell->type == "$_DFF_P_")) + if (clk_polarity != (cell->type == ID($_DFF_P_))) return; - if (clk_sig != assign_map(cell->getPort("\\C"))) + if (clk_sig != assign_map(cell->getPort(ID(C)))) return; if (GetSize(en_sig) != 0) return; goto matching_dff; } - if (cell->type == "$_DFFE_NN_" || cell->type == "$_DFFE_NP_" || cell->type == "$_DFFE_PN_" || cell->type == "$_DFFE_PP_") + if (cell->type.in(ID($_DFFE_NN_), ID($_DFFE_NP_), ID($_DFFE_PN_), ID($_DFFE_PP_))) { - if (clk_polarity != (cell->type == "$_DFFE_PN_" || cell->type == "$_DFFE_PP_")) + if (clk_polarity != cell->type.in(ID($_DFFE_PN_), ID($_DFFE_PP_))) return; - if (en_polarity != (cell->type == "$_DFFE_NP_" || cell->type == "$_DFFE_PP_")) + if (en_polarity != cell->type.in(ID($_DFFE_NP_), ID($_DFFE_PP_))) return; - if (clk_sig != assign_map(cell->getPort("\\C"))) + if (clk_sig != assign_map(cell->getPort(ID(C)))) return; - if (en_sig != assign_map(cell->getPort("\\E"))) + if (en_sig != assign_map(cell->getPort(ID(E)))) return; goto matching_dff; } if (0) { matching_dff: - RTLIL::SigSpec sig_d = cell->getPort("\\D"); - RTLIL::SigSpec sig_q = cell->getPort("\\Q"); + RTLIL::SigSpec sig_d = cell->getPort(ID(D)); + RTLIL::SigSpec sig_q = cell->getPort(ID(Q)); if (keepff) for (auto &c : sig_q.chunks()) if (c.wire != NULL) - c.wire->attributes["\\keep"] = 1; + c.wire->attributes[ID::keep] = 1; assign_map.apply(sig_d); assign_map.apply(sig_q); @@ -203,25 +209,25 @@ void extract_cell(RTLIL::Cell *cell, bool keepff) return; } - if (cell->type.in("$_BUF_", "$_NOT_")) + if (cell->type.in(ID($_BUF_), ID($_NOT_))) { - RTLIL::SigSpec sig_a = cell->getPort("\\A"); - RTLIL::SigSpec sig_y = cell->getPort("\\Y"); + RTLIL::SigSpec sig_a = cell->getPort(ID::A); + RTLIL::SigSpec sig_y = cell->getPort(ID::Y); assign_map.apply(sig_a); assign_map.apply(sig_y); - map_signal(sig_y, cell->type == "$_BUF_" ? G(BUF) : G(NOT), map_signal(sig_a)); + map_signal(sig_y, cell->type == ID($_BUF_) ? G(BUF) : G(NOT), map_signal(sig_a)); module->remove(cell); return; } - if (cell->type.in("$_AND_", "$_NAND_", "$_OR_", "$_NOR_", "$_XOR_", "$_XNOR_", "$_ANDNOT_", "$_ORNOT_")) + if (cell->type.in(ID($_AND_), ID($_NAND_), ID($_OR_), ID($_NOR_), ID($_XOR_), ID($_XNOR_), ID($_ANDNOT_), ID($_ORNOT_))) { - RTLIL::SigSpec sig_a = cell->getPort("\\A"); - RTLIL::SigSpec sig_b = cell->getPort("\\B"); - RTLIL::SigSpec sig_y = cell->getPort("\\Y"); + RTLIL::SigSpec sig_a = cell->getPort(ID::A); + RTLIL::SigSpec sig_b = cell->getPort(ID::B); + RTLIL::SigSpec sig_y = cell->getPort(ID::Y); assign_map.apply(sig_a); assign_map.apply(sig_b); @@ -230,21 +236,21 @@ void extract_cell(RTLIL::Cell *cell, bool keepff) int mapped_a = map_signal(sig_a); int mapped_b = map_signal(sig_b); - if (cell->type == "$_AND_") + if (cell->type == ID($_AND_)) map_signal(sig_y, G(AND), mapped_a, mapped_b); - else if (cell->type == "$_NAND_") + else if (cell->type == ID($_NAND_)) map_signal(sig_y, G(NAND), mapped_a, mapped_b); - else if (cell->type == "$_OR_") + else if (cell->type == ID($_OR_)) map_signal(sig_y, G(OR), mapped_a, mapped_b); - else if (cell->type == "$_NOR_") + else if (cell->type == ID($_NOR_)) map_signal(sig_y, G(NOR), mapped_a, mapped_b); - else if (cell->type == "$_XOR_") + else if (cell->type == ID($_XOR_)) map_signal(sig_y, G(XOR), mapped_a, mapped_b); - else if (cell->type == "$_XNOR_") + else if (cell->type == ID($_XNOR_)) map_signal(sig_y, G(XNOR), mapped_a, mapped_b); - else if (cell->type == "$_ANDNOT_") + else if (cell->type == ID($_ANDNOT_)) map_signal(sig_y, G(ANDNOT), mapped_a, mapped_b); - else if (cell->type == "$_ORNOT_") + else if (cell->type == ID($_ORNOT_)) map_signal(sig_y, G(ORNOT), mapped_a, mapped_b); else log_abort(); @@ -253,12 +259,12 @@ void extract_cell(RTLIL::Cell *cell, bool keepff) return; } - if (cell->type == "$_MUX_") + if (cell->type.in(ID($_MUX_), ID($_NMUX_))) { - RTLIL::SigSpec sig_a = cell->getPort("\\A"); - RTLIL::SigSpec sig_b = cell->getPort("\\B"); - RTLIL::SigSpec sig_s = cell->getPort("\\S"); - RTLIL::SigSpec sig_y = cell->getPort("\\Y"); + RTLIL::SigSpec sig_a = cell->getPort(ID::A); + RTLIL::SigSpec sig_b = cell->getPort(ID::B); + RTLIL::SigSpec sig_s = cell->getPort(ID(S)); + RTLIL::SigSpec sig_y = cell->getPort(ID::Y); assign_map.apply(sig_a); assign_map.apply(sig_b); @@ -269,18 +275,18 @@ void extract_cell(RTLIL::Cell *cell, bool keepff) int mapped_b = map_signal(sig_b); int mapped_s = map_signal(sig_s); - map_signal(sig_y, G(MUX), mapped_a, mapped_b, mapped_s); + map_signal(sig_y, cell->type == ID($_MUX_) ? G(MUX) : G(NMUX), mapped_a, mapped_b, mapped_s); module->remove(cell); return; } - if (cell->type.in("$_AOI3_", "$_OAI3_")) + if (cell->type.in(ID($_AOI3_), ID($_OAI3_))) { - RTLIL::SigSpec sig_a = cell->getPort("\\A"); - RTLIL::SigSpec sig_b = cell->getPort("\\B"); - RTLIL::SigSpec sig_c = cell->getPort("\\C"); - RTLIL::SigSpec sig_y = cell->getPort("\\Y"); + RTLIL::SigSpec sig_a = cell->getPort(ID::A); + RTLIL::SigSpec sig_b = cell->getPort(ID::B); + RTLIL::SigSpec sig_c = cell->getPort(ID(C)); + RTLIL::SigSpec sig_y = cell->getPort(ID::Y); assign_map.apply(sig_a); assign_map.apply(sig_b); @@ -291,19 +297,19 @@ void extract_cell(RTLIL::Cell *cell, bool keepff) int mapped_b = map_signal(sig_b); int mapped_c = map_signal(sig_c); - map_signal(sig_y, cell->type == "$_AOI3_" ? G(AOI3) : G(OAI3), mapped_a, mapped_b, mapped_c); + map_signal(sig_y, cell->type == ID($_AOI3_) ? G(AOI3) : G(OAI3), mapped_a, mapped_b, mapped_c); module->remove(cell); return; } - if (cell->type.in("$_AOI4_", "$_OAI4_")) + if (cell->type.in(ID($_AOI4_), ID($_OAI4_))) { - RTLIL::SigSpec sig_a = cell->getPort("\\A"); - RTLIL::SigSpec sig_b = cell->getPort("\\B"); - RTLIL::SigSpec sig_c = cell->getPort("\\C"); - RTLIL::SigSpec sig_d = cell->getPort("\\D"); - RTLIL::SigSpec sig_y = cell->getPort("\\Y"); + RTLIL::SigSpec sig_a = cell->getPort(ID::A); + RTLIL::SigSpec sig_b = cell->getPort(ID::B); + RTLIL::SigSpec sig_c = cell->getPort(ID(C)); + RTLIL::SigSpec sig_d = cell->getPort(ID(D)); + RTLIL::SigSpec sig_y = cell->getPort(ID::Y); assign_map.apply(sig_a); assign_map.apply(sig_b); @@ -316,18 +322,50 @@ void extract_cell(RTLIL::Cell *cell, bool keepff) int mapped_c = map_signal(sig_c); int mapped_d = map_signal(sig_d); - map_signal(sig_y, cell->type == "$_AOI4_" ? G(AOI4) : G(OAI4), mapped_a, mapped_b, mapped_c, mapped_d); + map_signal(sig_y, cell->type == ID($_AOI4_) ? G(AOI4) : G(OAI4), mapped_a, mapped_b, mapped_c, mapped_d); module->remove(cell); return; } } -std::string remap_name(RTLIL::IdString abc_name) +std::string remap_name(RTLIL::IdString abc_name, RTLIL::Wire **orig_wire = nullptr) { - std::stringstream sstr; - sstr << "$abc$" << map_autoidx << "$" << abc_name.substr(1); - return sstr.str(); + std::string abc_sname = abc_name.substr(1); + bool isnew = false; + if (abc_sname.compare(0, 4, "new_") == 0) + { + abc_sname.erase(0, 4); + isnew = true; + } + if (abc_sname.compare(0, 5, "ys__n") == 0) + { + abc_sname.erase(0, 5); + if (std::isdigit(abc_sname.at(0))) + { + int sid = std::atoi(abc_sname.c_str()); + size_t postfix_start = abc_sname.find_first_not_of("0123456789"); + std::string postfix = postfix_start != std::string::npos ? abc_sname.substr(postfix_start) : ""; + + if (sid < GetSize(signal_list)) + { + auto sig = signal_list.at(sid); + if (sig.bit.wire != nullptr) + { + std::string s = stringf("$abc$%d$%s", map_autoidx, sig.bit.wire->name.c_str()+1); + if (sig.bit.wire->width != 1) + s += stringf("[%d]", sig.bit.offset); + if (isnew) + s += "_new"; + s += postfix; + if (orig_wire != nullptr) + *orig_wire = sig.bit.wire; + return s; + } + } + } + } + return stringf("$abc$%d$%s", map_autoidx, abc_name.c_str()+1); } void dump_loop_graph(FILE *f, int &nr, std::map<int, std::set<int>> &edges, std::set<int> &workpool, std::vector<int> &in_counts) @@ -349,12 +387,12 @@ void dump_loop_graph(FILE *f, int &nr, std::map<int, std::set<int>> &edges, std: } for (auto n : nodes) - fprintf(f, " n%d [label=\"%s\\nid=%d, count=%d\"%s];\n", n, log_signal(signal_list[n].bit), + fprintf(f, " ys__n%d [label=\"%s\\nid=%d, count=%d\"%s];\n", n, log_signal(signal_list[n].bit), n, in_counts[n], workpool.count(n) ? ", shape=box" : ""); for (auto &e : edges) for (auto n : e.second) - fprintf(f, " n%d -> n%d;\n", e.first, n); + fprintf(f, " ys__n%d -> ys__n%d;\n", e.first, n); fprintf(f, "}\n"); } @@ -546,11 +584,13 @@ std::string replace_tempdir(std::string text, std::string tempdir_name, bool sho } std::string selfdir_name = proc_self_dirname(); - while (1) { - size_t pos = text.find(selfdir_name); - if (pos == std::string::npos) - break; - text = text.substr(0, pos) + "<yosys-exe-dir>/" + text.substr(pos + GetSize(selfdir_name)); + if (selfdir_name != "/") { + while (1) { + size_t pos = text.find(selfdir_name); + if (pos == std::string::npos) + break; + text = text.substr(0, pos) + "<yosys-exe-dir>/" + text.substr(pos + GetSize(selfdir_name)); + } } return text; @@ -618,7 +658,7 @@ struct abc_output_filter void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::string script_file, std::string exe_file, std::string liberty_file, std::string constr_file, bool cleanup, vector<int> lut_costs, bool dff_mode, std::string clk_str, bool keepff, std::string delay_target, std::string sop_inputs, std::string sop_products, std::string lutin_shared, bool fast_mode, - const std::vector<RTLIL::Cell*> &cells, bool show_tempdir, bool sop_mode) + const std::vector<RTLIL::Cell*> &cells, bool show_tempdir, bool sop_mode, bool abc_dress) { module = current_module; map_autoidx = autoidx++; @@ -722,7 +762,8 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin for (size_t pos = abc_script.find("{S}"); pos != std::string::npos; pos = abc_script.find("{S}", pos)) abc_script = abc_script.substr(0, pos) + lutin_shared + abc_script.substr(pos+3); - + if (abc_dress) + abc_script += "; dress"; abc_script += stringf("; write_blif %s/output.blif", tempdir_name.c_str()); abc_script = add_echos_to_abc_cmd(abc_script); @@ -750,7 +791,7 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin extract_cell(c, keepff); for (auto &wire_it : module->wires_) { - if (wire_it.second->port_id > 0 || wire_it.second->get_bool_attribute("\\keep")) + if (wire_it.second->port_id > 0 || wire_it.second->get_bool_attribute(ID::keep)) mark_port(RTLIL::SigSpec(wire_it.second)); } @@ -778,7 +819,7 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin for (auto &si : signal_list) { if (!si.is_port || si.type != G(NONE)) continue; - fprintf(f, " n%d", si.id); + fprintf(f, " ys__n%d", si.id); pi_map[count_input++] = log_signal(si.bit); } if (count_input == 0) @@ -790,17 +831,17 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin for (auto &si : signal_list) { if (!si.is_port || si.type == G(NONE)) continue; - fprintf(f, " n%d", si.id); + fprintf(f, " ys__n%d", si.id); po_map[count_output++] = log_signal(si.bit); } fprintf(f, "\n"); for (auto &si : signal_list) - fprintf(f, "# n%-5d %s\n", si.id, log_signal(si.bit)); + fprintf(f, "# ys__n%-5d %s\n", si.id, log_signal(si.bit)); for (auto &si : signal_list) { if (si.bit.wire == NULL) { - fprintf(f, ".names n%d\n", si.id); + fprintf(f, ".names ys__n%d\n", si.id); if (si.bit == RTLIL::State::S1) fprintf(f, "1\n"); } @@ -809,68 +850,72 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin int count_gates = 0; for (auto &si : signal_list) { if (si.type == G(BUF)) { - fprintf(f, ".names n%d n%d\n", si.in1, si.id); + fprintf(f, ".names ys__n%d ys__n%d\n", si.in1, si.id); fprintf(f, "1 1\n"); } else if (si.type == G(NOT)) { - fprintf(f, ".names n%d n%d\n", si.in1, si.id); + fprintf(f, ".names ys__n%d ys__n%d\n", si.in1, si.id); fprintf(f, "0 1\n"); } else if (si.type == G(AND)) { - fprintf(f, ".names n%d n%d n%d\n", si.in1, si.in2, si.id); + fprintf(f, ".names ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.id); fprintf(f, "11 1\n"); } else if (si.type == G(NAND)) { - fprintf(f, ".names n%d n%d n%d\n", si.in1, si.in2, si.id); + fprintf(f, ".names ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.id); fprintf(f, "0- 1\n"); fprintf(f, "-0 1\n"); } else if (si.type == G(OR)) { - fprintf(f, ".names n%d n%d n%d\n", si.in1, si.in2, si.id); + fprintf(f, ".names ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.id); fprintf(f, "-1 1\n"); fprintf(f, "1- 1\n"); } else if (si.type == G(NOR)) { - fprintf(f, ".names n%d n%d n%d\n", si.in1, si.in2, si.id); + fprintf(f, ".names ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.id); fprintf(f, "00 1\n"); } else if (si.type == G(XOR)) { - fprintf(f, ".names n%d n%d n%d\n", si.in1, si.in2, si.id); + fprintf(f, ".names ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.id); fprintf(f, "01 1\n"); fprintf(f, "10 1\n"); } else if (si.type == G(XNOR)) { - fprintf(f, ".names n%d n%d n%d\n", si.in1, si.in2, si.id); + fprintf(f, ".names ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.id); fprintf(f, "00 1\n"); fprintf(f, "11 1\n"); } else if (si.type == G(ANDNOT)) { - fprintf(f, ".names n%d n%d n%d\n", si.in1, si.in2, si.id); + fprintf(f, ".names ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.id); fprintf(f, "10 1\n"); } else if (si.type == G(ORNOT)) { - fprintf(f, ".names n%d n%d n%d\n", si.in1, si.in2, si.id); + fprintf(f, ".names ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.id); fprintf(f, "1- 1\n"); fprintf(f, "-0 1\n"); } else if (si.type == G(MUX)) { - fprintf(f, ".names n%d n%d n%d n%d\n", si.in1, si.in2, si.in3, si.id); + fprintf(f, ".names ys__n%d ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.in3, si.id); fprintf(f, "1-0 1\n"); fprintf(f, "-11 1\n"); + } else if (si.type == G(NMUX)) { + fprintf(f, ".names ys__n%d ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.in3, si.id); + fprintf(f, "0-0 1\n"); + fprintf(f, "-01 1\n"); } else if (si.type == G(AOI3)) { - fprintf(f, ".names n%d n%d n%d n%d\n", si.in1, si.in2, si.in3, si.id); + fprintf(f, ".names ys__n%d ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.in3, si.id); fprintf(f, "-00 1\n"); fprintf(f, "0-0 1\n"); } else if (si.type == G(OAI3)) { - fprintf(f, ".names n%d n%d n%d n%d\n", si.in1, si.in2, si.in3, si.id); + fprintf(f, ".names ys__n%d ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.in3, si.id); fprintf(f, "00- 1\n"); fprintf(f, "--0 1\n"); } else if (si.type == G(AOI4)) { - fprintf(f, ".names n%d n%d n%d n%d n%d\n", si.in1, si.in2, si.in3, si.in4, si.id); + fprintf(f, ".names ys__n%d ys__n%d ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.in3, si.in4, si.id); fprintf(f, "-0-0 1\n"); fprintf(f, "-00- 1\n"); fprintf(f, "0--0 1\n"); fprintf(f, "0-0- 1\n"); } else if (si.type == G(OAI4)) { - fprintf(f, ".names n%d n%d n%d n%d n%d\n", si.in1, si.in2, si.in3, si.in4, si.id); + fprintf(f, ".names ys__n%d ys__n%d ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.in3, si.in4, si.id); fprintf(f, "00-- 1\n"); fprintf(f, "--00 1\n"); } else if (si.type == G(FF)) { if (si.init == State::S0 || si.init == State::S1) { - fprintf(f, ".latch n%d n%d %d\n", si.in1, si.id, si.init == State::S1 ? 1 : 0); + fprintf(f, ".latch ys__n%d ys__n%d %d\n", si.in1, si.id, si.init == State::S1 ? 1 : 0); recover_init = true; } else - fprintf(f, ".latch n%d n%d 2\n", si.in1, si.id); + fprintf(f, ".latch ys__n%d ys__n%d 2\n", si.in1, si.id); } else if (si.type != G(NONE)) log_abort(); if (si.type != G(NONE)) @@ -883,51 +928,54 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin log("Extracted %d gates and %d wires to a netlist network with %d inputs and %d outputs.\n", count_gates, GetSize(signal_list), count_input, count_output); log_push(); - if (count_output > 0) { log_header(design, "Executing ABC.\n"); + auto &cell_cost = cmos_cost ? CellCosts::cmos_gate_cost() : CellCosts::default_gate_cost(); + buffer = stringf("%s/stdcells.genlib", tempdir_name.c_str()); f = fopen(buffer.c_str(), "wt"); if (f == NULL) log_error("Opening %s for writing failed: %s\n", buffer.c_str(), strerror(errno)); fprintf(f, "GATE ZERO 1 Y=CONST0;\n"); fprintf(f, "GATE ONE 1 Y=CONST1;\n"); - fprintf(f, "GATE BUF %d Y=A; PIN * NONINV 1 999 1 0 1 0\n", get_cell_cost("$_BUF_")); - fprintf(f, "GATE NOT %d Y=!A; PIN * INV 1 999 1 0 1 0\n", get_cell_cost("$_NOT_")); - if (enabled_gates.empty() || enabled_gates.count("AND")) - fprintf(f, "GATE AND %d Y=A*B; PIN * NONINV 1 999 1 0 1 0\n", get_cell_cost("$_AND_")); - if (enabled_gates.empty() || enabled_gates.count("NAND")) - fprintf(f, "GATE NAND %d Y=!(A*B); PIN * INV 1 999 1 0 1 0\n", get_cell_cost("$_NAND_")); - if (enabled_gates.empty() || enabled_gates.count("OR")) - fprintf(f, "GATE OR %d Y=A+B; PIN * NONINV 1 999 1 0 1 0\n", get_cell_cost("$_OR_")); - if (enabled_gates.empty() || enabled_gates.count("NOR")) - fprintf(f, "GATE NOR %d Y=!(A+B); PIN * INV 1 999 1 0 1 0\n", get_cell_cost("$_NOR_")); - if (enabled_gates.empty() || enabled_gates.count("XOR")) - fprintf(f, "GATE XOR %d Y=(A*!B)+(!A*B); PIN * UNKNOWN 1 999 1 0 1 0\n", get_cell_cost("$_XOR_")); - if (enabled_gates.empty() || enabled_gates.count("XNOR")) - fprintf(f, "GATE XNOR %d Y=(A*B)+(!A*!B); PIN * UNKNOWN 1 999 1 0 1 0\n", get_cell_cost("$_XNOR_")); - if (enabled_gates.empty() || enabled_gates.count("ANDNOT")) - fprintf(f, "GATE ANDNOT %d Y=A*!B; PIN * UNKNOWN 1 999 1 0 1 0\n", get_cell_cost("$_ANDNOT_")); - if (enabled_gates.empty() || enabled_gates.count("ORNOT")) - fprintf(f, "GATE ORNOT %d Y=A+!B; PIN * UNKNOWN 1 999 1 0 1 0\n", get_cell_cost("$_ORNOT_")); - if (enabled_gates.empty() || enabled_gates.count("AOI3")) - fprintf(f, "GATE AOI3 %d Y=!((A*B)+C); PIN * INV 1 999 1 0 1 0\n", get_cell_cost("$_AOI3_")); - if (enabled_gates.empty() || enabled_gates.count("OAI3")) - fprintf(f, "GATE OAI3 %d Y=!((A+B)*C); PIN * INV 1 999 1 0 1 0\n", get_cell_cost("$_OAI3_")); - if (enabled_gates.empty() || enabled_gates.count("AOI4")) - fprintf(f, "GATE AOI4 %d Y=!((A*B)+(C*D)); PIN * INV 1 999 1 0 1 0\n", get_cell_cost("$_AOI4_")); - if (enabled_gates.empty() || enabled_gates.count("OAI4")) - fprintf(f, "GATE OAI4 %d Y=!((A+B)*(C+D)); PIN * INV 1 999 1 0 1 0\n", get_cell_cost("$_OAI4_")); - if (enabled_gates.empty() || enabled_gates.count("MUX")) - fprintf(f, "GATE MUX %d Y=(A*B)+(S*B)+(!S*A); PIN * UNKNOWN 1 999 1 0 1 0\n", get_cell_cost("$_MUX_")); + fprintf(f, "GATE BUF %d Y=A; PIN * NONINV 1 999 1 0 1 0\n", cell_cost.at(ID($_BUF_))); + fprintf(f, "GATE NOT %d Y=!A; PIN * INV 1 999 1 0 1 0\n", cell_cost.at(ID($_NOT_))); + if (enabled_gates.count("AND")) + fprintf(f, "GATE AND %d Y=A*B; PIN * NONINV 1 999 1 0 1 0\n", cell_cost.at(ID($_AND_))); + if (enabled_gates.count("NAND")) + fprintf(f, "GATE NAND %d Y=!(A*B); PIN * INV 1 999 1 0 1 0\n", cell_cost.at(ID($_NAND_))); + if (enabled_gates.count("OR")) + fprintf(f, "GATE OR %d Y=A+B; PIN * NONINV 1 999 1 0 1 0\n", cell_cost.at(ID($_OR_))); + if (enabled_gates.count("NOR")) + fprintf(f, "GATE NOR %d Y=!(A+B); PIN * INV 1 999 1 0 1 0\n", cell_cost.at(ID($_NOR_))); + if (enabled_gates.count("XOR")) + fprintf(f, "GATE XOR %d Y=(A*!B)+(!A*B); PIN * UNKNOWN 1 999 1 0 1 0\n", cell_cost.at(ID($_XOR_))); + if (enabled_gates.count("XNOR")) + fprintf(f, "GATE XNOR %d Y=(A*B)+(!A*!B); PIN * UNKNOWN 1 999 1 0 1 0\n", cell_cost.at(ID($_XNOR_))); + if (enabled_gates.count("ANDNOT")) + fprintf(f, "GATE ANDNOT %d Y=A*!B; PIN * UNKNOWN 1 999 1 0 1 0\n", cell_cost.at(ID($_ANDNOT_))); + if (enabled_gates.count("ORNOT")) + fprintf(f, "GATE ORNOT %d Y=A+!B; PIN * UNKNOWN 1 999 1 0 1 0\n", cell_cost.at(ID($_ORNOT_))); + if (enabled_gates.count("AOI3")) + fprintf(f, "GATE AOI3 %d Y=!((A*B)+C); PIN * INV 1 999 1 0 1 0\n", cell_cost.at(ID($_AOI3_))); + if (enabled_gates.count("OAI3")) + fprintf(f, "GATE OAI3 %d Y=!((A+B)*C); PIN * INV 1 999 1 0 1 0\n", cell_cost.at(ID($_OAI3_))); + if (enabled_gates.count("AOI4")) + fprintf(f, "GATE AOI4 %d Y=!((A*B)+(C*D)); PIN * INV 1 999 1 0 1 0\n", cell_cost.at(ID($_AOI4_))); + if (enabled_gates.count("OAI4")) + fprintf(f, "GATE OAI4 %d Y=!((A+B)*(C+D)); PIN * INV 1 999 1 0 1 0\n", cell_cost.at(ID($_OAI4_))); + if (enabled_gates.count("MUX")) + fprintf(f, "GATE MUX %d Y=(A*B)+(S*B)+(!S*A); PIN * UNKNOWN 1 999 1 0 1 0\n", cell_cost.at(ID($_MUX_))); + if (enabled_gates.count("NMUX")) + fprintf(f, "GATE NMUX %d Y=!((A*B)+(S*B)+(!S*A)); PIN * UNKNOWN 1 999 1 0 1 0\n", cell_cost.at(ID($_NMUX_))); if (map_mux4) - fprintf(f, "GATE MUX4 %d Y=(!S*!T*A)+(S*!T*B)+(!S*T*C)+(S*T*D); PIN * UNKNOWN 1 999 1 0 1 0\n", 2*get_cell_cost("$_MUX_")); + fprintf(f, "GATE MUX4 %d Y=(!S*!T*A)+(S*!T*B)+(!S*T*C)+(S*T*D); PIN * UNKNOWN 1 999 1 0 1 0\n", 2*cell_cost.at(ID($_MUX_))); if (map_mux8) - fprintf(f, "GATE MUX8 %d Y=(!S*!T*!U*A)+(S*!T*!U*B)+(!S*T*!U*C)+(S*T*!U*D)+(!S*!T*U*E)+(S*!T*U*F)+(!S*T*U*G)+(S*T*U*H); PIN * UNKNOWN 1 999 1 0 1 0\n", 4*get_cell_cost("$_MUX_")); + fprintf(f, "GATE MUX8 %d Y=(!S*!T*!U*A)+(S*!T*!U*B)+(!S*T*!U*C)+(S*T*!U*D)+(!S*!T*U*E)+(S*!T*U*F)+(!S*T*U*G)+(S*T*U*H); PIN * UNKNOWN 1 999 1 0 1 0\n", 4*cell_cost.at(ID($_MUX_))); if (map_mux16) - fprintf(f, "GATE MUX16 %d Y=(!S*!T*!U*!V*A)+(S*!T*!U*!V*B)+(!S*T*!U*!V*C)+(S*T*!U*!V*D)+(!S*!T*U*!V*E)+(S*!T*U*!V*F)+(!S*T*U*!V*G)+(S*T*U*!V*H)+(!S*!T*!U*V*I)+(S*!T*!U*V*J)+(!S*T*!U*V*K)+(S*T*!U*V*L)+(!S*!T*U*V*M)+(S*!T*U*V*N)+(!S*T*U*V*O)+(S*T*U*V*P); PIN * UNKNOWN 1 999 1 0 1 0\n", 8*get_cell_cost("$_MUX_")); + fprintf(f, "GATE MUX16 %d Y=(!S*!T*!U*!V*A)+(S*!T*!U*!V*B)+(!S*T*!U*!V*C)+(S*T*!U*!V*D)+(!S*!T*U*!V*E)+(S*!T*U*!V*F)+(!S*T*U*!V*G)+(S*T*U*!V*H)+(!S*!T*!U*V*I)+(S*!T*!U*V*J)+(!S*T*!U*V*K)+(S*T*!U*V*L)+(!S*!T*U*V*M)+(S*!T*U*V*N)+(!S*T*U*V*O)+(S*T*U*V*P); PIN * UNKNOWN 1 999 1 0 1 0\n", 8*cell_cost.at(ID($_MUX_))); fclose(f); if (!lut_costs.empty()) { @@ -943,8 +991,24 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin buffer = stringf("%s -s -f %s/abc.script 2>&1", exe_file.c_str(), tempdir_name.c_str()); log("Running ABC command: %s\n", replace_tempdir(buffer, tempdir_name, show_tempdir).c_str()); +#ifndef YOSYS_LINK_ABC abc_output_filter filt(tempdir_name, show_tempdir); int ret = run_command(buffer, std::bind(&abc_output_filter::next_line, filt, std::placeholders::_1)); +#else + // These needs to be mutable, supposedly due to getopt + char *abc_argv[5]; + string tmp_script_name = stringf("%s/abc.script", tempdir_name.c_str()); + abc_argv[0] = strdup(exe_file.c_str()); + abc_argv[1] = strdup("-s"); + abc_argv[2] = strdup("-f"); + abc_argv[3] = strdup(tmp_script_name.c_str()); + abc_argv[4] = 0; + int ret = Abc_RealMain(4, abc_argv); + free(abc_argv[0]); + free(abc_argv[1]); + free(abc_argv[2]); + free(abc_argv[3]); +#endif if (ret != 0) log_error("ABC: execution of command \"%s\" failed: return code %d.\n", buffer.c_str(), ret); @@ -956,18 +1020,21 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin bool builtin_lib = liberty_file.empty(); RTLIL::Design *mapped_design = new RTLIL::Design; - parse_blif(mapped_design, ifs, builtin_lib ? "\\DFF" : "\\_dff_", false, sop_mode); + parse_blif(mapped_design, ifs, builtin_lib ? ID(DFF) : ID(_dff_), false, sop_mode); ifs.close(); log_header(design, "Re-integrating ABC results.\n"); - RTLIL::Module *mapped_mod = mapped_design->modules_["\\netlist"]; + RTLIL::Module *mapped_mod = mapped_design->modules_[ID(netlist)]; if (mapped_mod == NULL) log_error("ABC output file does not contain a module `netlist'.\n"); for (auto &it : mapped_mod->wires_) { RTLIL::Wire *w = it.second; - RTLIL::Wire *wire = module->addWire(remap_name(w->name)); - if (markgroups) wire->attributes["\\abcgroup"] = map_autoidx; + RTLIL::Wire *orig_wire = nullptr; + RTLIL::Wire *wire = module->addWire(remap_name(w->name, &orig_wire)); + if (orig_wire != nullptr && orig_wire->attributes.count(ID(src))) + wire->attributes[ID(src)] = orig_wire->attributes[ID(src)]; + if (markgroups) wire->attributes[ID(abcgroup)] = map_autoidx; design->select(module, wire); } @@ -977,183 +1044,182 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin if (builtin_lib) { cell_stats[RTLIL::unescape_id(c->type)]++; - if (c->type == "\\ZERO" || c->type == "\\ONE") { + if (c->type.in(ID(ZERO), ID(ONE))) { RTLIL::SigSig conn; - conn.first = RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Y").as_wire()->name)]); - conn.second = RTLIL::SigSpec(c->type == "\\ZERO" ? 0 : 1, 1); + conn.first = RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::Y).as_wire()->name)]); + conn.second = RTLIL::SigSpec(c->type == ID(ZERO) ? 0 : 1, 1); module->connect(conn); continue; } - if (c->type == "\\BUF") { + if (c->type == ID(BUF)) { RTLIL::SigSig conn; - conn.first = RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Y").as_wire()->name)]); - conn.second = RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\A").as_wire()->name)]); + conn.first = RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::Y).as_wire()->name)]); + conn.second = RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::A).as_wire()->name)]); module->connect(conn); continue; } - if (c->type == "\\NOT") { - RTLIL::Cell *cell = module->addCell(remap_name(c->name), "$_NOT_"); - if (markgroups) cell->attributes["\\abcgroup"] = map_autoidx; - cell->setPort("\\A", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\A").as_wire()->name)])); - cell->setPort("\\Y", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Y").as_wire()->name)])); + if (c->type == ID(NOT)) { + RTLIL::Cell *cell = module->addCell(remap_name(c->name), ID($_NOT_)); + if (markgroups) cell->attributes[ID(abcgroup)] = map_autoidx; + cell->setPort(ID::A, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::A).as_wire()->name)])); + cell->setPort(ID::Y, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::Y).as_wire()->name)])); design->select(module, cell); continue; } - if (c->type == "\\AND" || c->type == "\\OR" || c->type == "\\XOR" || c->type == "\\NAND" || c->type == "\\NOR" || - c->type == "\\XNOR" || c->type == "\\ANDNOT" || c->type == "\\ORNOT") { - RTLIL::Cell *cell = module->addCell(remap_name(c->name), "$_" + c->type.substr(1) + "_"); - if (markgroups) cell->attributes["\\abcgroup"] = map_autoidx; - cell->setPort("\\A", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\A").as_wire()->name)])); - cell->setPort("\\B", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\B").as_wire()->name)])); - cell->setPort("\\Y", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Y").as_wire()->name)])); + if (c->type.in(ID(AND), ID(OR), ID(XOR), ID(NAND), ID(NOR), ID(XNOR), ID(ANDNOT), ID(ORNOT))) { + RTLIL::Cell *cell = module->addCell(remap_name(c->name), stringf("$_%s_", c->type.c_str()+1)); + if (markgroups) cell->attributes[ID(abcgroup)] = map_autoidx; + cell->setPort(ID::A, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::A).as_wire()->name)])); + cell->setPort(ID::B, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::B).as_wire()->name)])); + cell->setPort(ID::Y, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::Y).as_wire()->name)])); design->select(module, cell); continue; } - if (c->type == "\\MUX") { - RTLIL::Cell *cell = module->addCell(remap_name(c->name), "$_MUX_"); - if (markgroups) cell->attributes["\\abcgroup"] = map_autoidx; - cell->setPort("\\A", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\A").as_wire()->name)])); - cell->setPort("\\B", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\B").as_wire()->name)])); - cell->setPort("\\S", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\S").as_wire()->name)])); - cell->setPort("\\Y", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Y").as_wire()->name)])); + if (c->type.in(ID(MUX), ID(NMUX))) { + RTLIL::Cell *cell = module->addCell(remap_name(c->name), stringf("$_%s_", c->type.c_str()+1)); + if (markgroups) cell->attributes[ID(abcgroup)] = map_autoidx; + cell->setPort(ID::A, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::A).as_wire()->name)])); + cell->setPort(ID::B, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::B).as_wire()->name)])); + cell->setPort(ID(S), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(S)).as_wire()->name)])); + cell->setPort(ID::Y, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::Y).as_wire()->name)])); design->select(module, cell); continue; } - if (c->type == "\\MUX4") { - RTLIL::Cell *cell = module->addCell(remap_name(c->name), "$_MUX4_"); - if (markgroups) cell->attributes["\\abcgroup"] = map_autoidx; - cell->setPort("\\A", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\A").as_wire()->name)])); - cell->setPort("\\B", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\B").as_wire()->name)])); - cell->setPort("\\C", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\C").as_wire()->name)])); - cell->setPort("\\D", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\D").as_wire()->name)])); - cell->setPort("\\S", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\S").as_wire()->name)])); - cell->setPort("\\T", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\T").as_wire()->name)])); - cell->setPort("\\Y", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Y").as_wire()->name)])); + if (c->type == ID(MUX4)) { + RTLIL::Cell *cell = module->addCell(remap_name(c->name), ID($_MUX4_)); + if (markgroups) cell->attributes[ID(abcgroup)] = map_autoidx; + cell->setPort(ID::A, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::A).as_wire()->name)])); + cell->setPort(ID::B, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::B).as_wire()->name)])); + cell->setPort(ID(C), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(C)).as_wire()->name)])); + cell->setPort(ID(D), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(D)).as_wire()->name)])); + cell->setPort(ID(S), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(S)).as_wire()->name)])); + cell->setPort(ID(T), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(T)).as_wire()->name)])); + cell->setPort(ID::Y, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::Y).as_wire()->name)])); design->select(module, cell); continue; } - if (c->type == "\\MUX8") { - RTLIL::Cell *cell = module->addCell(remap_name(c->name), "$_MUX8_"); - if (markgroups) cell->attributes["\\abcgroup"] = map_autoidx; - cell->setPort("\\A", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\A").as_wire()->name)])); - cell->setPort("\\B", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\B").as_wire()->name)])); - cell->setPort("\\C", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\C").as_wire()->name)])); - cell->setPort("\\D", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\D").as_wire()->name)])); - cell->setPort("\\E", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\E").as_wire()->name)])); - cell->setPort("\\F", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\F").as_wire()->name)])); - cell->setPort("\\G", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\G").as_wire()->name)])); - cell->setPort("\\H", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\H").as_wire()->name)])); - cell->setPort("\\S", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\S").as_wire()->name)])); - cell->setPort("\\T", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\T").as_wire()->name)])); - cell->setPort("\\U", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\U").as_wire()->name)])); - cell->setPort("\\Y", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Y").as_wire()->name)])); + if (c->type == ID(MUX8)) { + RTLIL::Cell *cell = module->addCell(remap_name(c->name), ID($_MUX8_)); + if (markgroups) cell->attributes[ID(abcgroup)] = map_autoidx; + cell->setPort(ID::A, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::A).as_wire()->name)])); + cell->setPort(ID::B, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::B).as_wire()->name)])); + cell->setPort(ID(C), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(C)).as_wire()->name)])); + cell->setPort(ID(D), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(D)).as_wire()->name)])); + cell->setPort(ID(E), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(E)).as_wire()->name)])); + cell->setPort(ID(F), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(F)).as_wire()->name)])); + cell->setPort(ID(G), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(G)).as_wire()->name)])); + cell->setPort(ID(H), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(H)).as_wire()->name)])); + cell->setPort(ID(S), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(S)).as_wire()->name)])); + cell->setPort(ID(T), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(T)).as_wire()->name)])); + cell->setPort(ID(U), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(U)).as_wire()->name)])); + cell->setPort(ID::Y, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::Y).as_wire()->name)])); design->select(module, cell); continue; } - if (c->type == "\\MUX16") { - RTLIL::Cell *cell = module->addCell(remap_name(c->name), "$_MUX16_"); - if (markgroups) cell->attributes["\\abcgroup"] = map_autoidx; - cell->setPort("\\A", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\A").as_wire()->name)])); - cell->setPort("\\B", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\B").as_wire()->name)])); - cell->setPort("\\C", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\C").as_wire()->name)])); - cell->setPort("\\D", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\D").as_wire()->name)])); - cell->setPort("\\E", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\E").as_wire()->name)])); - cell->setPort("\\F", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\F").as_wire()->name)])); - cell->setPort("\\G", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\G").as_wire()->name)])); - cell->setPort("\\H", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\H").as_wire()->name)])); - cell->setPort("\\I", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\I").as_wire()->name)])); - cell->setPort("\\J", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\J").as_wire()->name)])); - cell->setPort("\\K", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\K").as_wire()->name)])); - cell->setPort("\\L", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\L").as_wire()->name)])); - cell->setPort("\\M", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\M").as_wire()->name)])); - cell->setPort("\\N", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\N").as_wire()->name)])); - cell->setPort("\\O", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\O").as_wire()->name)])); - cell->setPort("\\P", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\P").as_wire()->name)])); - cell->setPort("\\S", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\S").as_wire()->name)])); - cell->setPort("\\T", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\T").as_wire()->name)])); - cell->setPort("\\U", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\U").as_wire()->name)])); - cell->setPort("\\V", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\V").as_wire()->name)])); - cell->setPort("\\Y", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Y").as_wire()->name)])); + if (c->type == ID(MUX16)) { + RTLIL::Cell *cell = module->addCell(remap_name(c->name), ID($_MUX16_)); + if (markgroups) cell->attributes[ID(abcgroup)] = map_autoidx; + cell->setPort(ID::A, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::A).as_wire()->name)])); + cell->setPort(ID::B, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::B).as_wire()->name)])); + cell->setPort(ID(C), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(C)).as_wire()->name)])); + cell->setPort(ID(D), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(D)).as_wire()->name)])); + cell->setPort(ID(E), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(E)).as_wire()->name)])); + cell->setPort(ID(F), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(F)).as_wire()->name)])); + cell->setPort(ID(G), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(G)).as_wire()->name)])); + cell->setPort(ID(H), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(H)).as_wire()->name)])); + cell->setPort(ID(I), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(I)).as_wire()->name)])); + cell->setPort(ID(J), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(J)).as_wire()->name)])); + cell->setPort(ID(K), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(K)).as_wire()->name)])); + cell->setPort(ID(L), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(L)).as_wire()->name)])); + cell->setPort(ID(M), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(M)).as_wire()->name)])); + cell->setPort(ID(N), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(N)).as_wire()->name)])); + cell->setPort(ID(O), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(O)).as_wire()->name)])); + cell->setPort(ID(P), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(P)).as_wire()->name)])); + cell->setPort(ID(S), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(S)).as_wire()->name)])); + cell->setPort(ID(T), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(T)).as_wire()->name)])); + cell->setPort(ID(U), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(U)).as_wire()->name)])); + cell->setPort(ID(V), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(V)).as_wire()->name)])); + cell->setPort(ID::Y, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::Y).as_wire()->name)])); design->select(module, cell); continue; } - if (c->type == "\\AOI3" || c->type == "\\OAI3") { - RTLIL::Cell *cell = module->addCell(remap_name(c->name), "$_" + c->type.substr(1) + "_"); - if (markgroups) cell->attributes["\\abcgroup"] = map_autoidx; - cell->setPort("\\A", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\A").as_wire()->name)])); - cell->setPort("\\B", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\B").as_wire()->name)])); - cell->setPort("\\C", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\C").as_wire()->name)])); - cell->setPort("\\Y", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Y").as_wire()->name)])); + if (c->type.in(ID(AOI3), ID(OAI3))) { + RTLIL::Cell *cell = module->addCell(remap_name(c->name), stringf("$_%s_", c->type.c_str()+1)); + if (markgroups) cell->attributes[ID(abcgroup)] = map_autoidx; + cell->setPort(ID::A, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::A).as_wire()->name)])); + cell->setPort(ID::B, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::B).as_wire()->name)])); + cell->setPort(ID(C), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(C)).as_wire()->name)])); + cell->setPort(ID::Y, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::Y).as_wire()->name)])); design->select(module, cell); continue; } - if (c->type == "\\AOI4" || c->type == "\\OAI4") { - RTLIL::Cell *cell = module->addCell(remap_name(c->name), "$_" + c->type.substr(1) + "_"); - if (markgroups) cell->attributes["\\abcgroup"] = map_autoidx; - cell->setPort("\\A", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\A").as_wire()->name)])); - cell->setPort("\\B", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\B").as_wire()->name)])); - cell->setPort("\\C", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\C").as_wire()->name)])); - cell->setPort("\\D", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\D").as_wire()->name)])); - cell->setPort("\\Y", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Y").as_wire()->name)])); + if (c->type.in(ID(AOI4), ID(OAI4))) { + RTLIL::Cell *cell = module->addCell(remap_name(c->name), stringf("$_%s_", c->type.c_str()+1)); + if (markgroups) cell->attributes[ID(abcgroup)] = map_autoidx; + cell->setPort(ID::A, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::A).as_wire()->name)])); + cell->setPort(ID::B, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::B).as_wire()->name)])); + cell->setPort(ID(C), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(C)).as_wire()->name)])); + cell->setPort(ID(D), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(D)).as_wire()->name)])); + cell->setPort(ID::Y, RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID::Y).as_wire()->name)])); design->select(module, cell); continue; } - if (c->type == "\\DFF") { + if (c->type == ID(DFF)) { log_assert(clk_sig.size() == 1); RTLIL::Cell *cell; if (en_sig.size() == 0) { - cell = module->addCell(remap_name(c->name), clk_polarity ? "$_DFF_P_" : "$_DFF_N_"); + cell = module->addCell(remap_name(c->name), clk_polarity ? ID($_DFF_P_) : ID($_DFF_N_)); } else { log_assert(en_sig.size() == 1); cell = module->addCell(remap_name(c->name), stringf("$_DFFE_%c%c_", clk_polarity ? 'P' : 'N', en_polarity ? 'P' : 'N')); - cell->setPort("\\E", en_sig); + cell->setPort(ID(E), en_sig); } - if (markgroups) cell->attributes["\\abcgroup"] = map_autoidx; - cell->setPort("\\D", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\D").as_wire()->name)])); - cell->setPort("\\Q", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Q").as_wire()->name)])); - cell->setPort("\\C", clk_sig); + if (markgroups) cell->attributes[ID(abcgroup)] = map_autoidx; + cell->setPort(ID(D), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(D)).as_wire()->name)])); + cell->setPort(ID(Q), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(Q)).as_wire()->name)])); + cell->setPort(ID(C), clk_sig); design->select(module, cell); continue; } } + else + cell_stats[RTLIL::unescape_id(c->type)]++; - cell_stats[RTLIL::unescape_id(c->type)]++; - - if (c->type == "\\_const0_" || c->type == "\\_const1_") { + if (c->type.in(ID(_const0_), ID(_const1_))) { RTLIL::SigSig conn; conn.first = RTLIL::SigSpec(module->wires_[remap_name(c->connections().begin()->second.as_wire()->name)]); - conn.second = RTLIL::SigSpec(c->type == "\\_const0_" ? 0 : 1, 1); + conn.second = RTLIL::SigSpec(c->type == ID(_const0_) ? 0 : 1, 1); module->connect(conn); continue; } - if (c->type == "\\_dff_") { + if (c->type == ID(_dff_)) { log_assert(clk_sig.size() == 1); RTLIL::Cell *cell; if (en_sig.size() == 0) { - cell = module->addCell(remap_name(c->name), clk_polarity ? "$_DFF_P_" : "$_DFF_N_"); + cell = module->addCell(remap_name(c->name), clk_polarity ? ID($_DFF_P_) : ID($_DFF_N_)); } else { log_assert(en_sig.size() == 1); cell = module->addCell(remap_name(c->name), stringf("$_DFFE_%c%c_", clk_polarity ? 'P' : 'N', en_polarity ? 'P' : 'N')); - cell->setPort("\\E", en_sig); + cell->setPort(ID(E), en_sig); } - if (markgroups) cell->attributes["\\abcgroup"] = map_autoidx; - cell->setPort("\\D", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\D").as_wire()->name)])); - cell->setPort("\\Q", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Q").as_wire()->name)])); - cell->setPort("\\C", clk_sig); + if (markgroups) cell->attributes[ID(abcgroup)] = map_autoidx; + cell->setPort(ID(D), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(D)).as_wire()->name)])); + cell->setPort(ID(Q), RTLIL::SigSpec(module->wires_[remap_name(c->getPort(ID(Q)).as_wire()->name)])); + cell->setPort(ID(C), clk_sig); design->select(module, cell); continue; } - if (c->type == "$lut" && GetSize(c->getPort("\\A")) == 1 && c->getParam("\\LUT").as_int() == 2) { - SigSpec my_a = module->wires_[remap_name(c->getPort("\\A").as_wire()->name)]; - SigSpec my_y = module->wires_[remap_name(c->getPort("\\Y").as_wire()->name)]; + if (c->type == ID($lut) && GetSize(c->getPort(ID::A)) == 1 && c->getParam(ID(LUT)).as_int() == 2) { + SigSpec my_a = module->wires_[remap_name(c->getPort(ID::A).as_wire()->name)]; + SigSpec my_y = module->wires_[remap_name(c->getPort(ID::Y).as_wire()->name)]; module->connect(my_y, my_a); continue; } RTLIL::Cell *cell = module->addCell(remap_name(c->name), c->type); - if (markgroups) cell->attributes["\\abcgroup"] = map_autoidx; + if (markgroups) cell->attributes[ID(abcgroup)] = map_autoidx; cell->parameters = c->parameters; for (auto &conn : c->connections()) { RTLIL::SigSpec newsig; @@ -1178,10 +1244,10 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin if (recover_init) for (auto wire : mapped_mod->wires()) { - if (wire->attributes.count("\\init")) { + if (wire->attributes.count(ID(init))) { Wire *w = module->wires_[remap_name(wire->name)]; - log_assert(w->attributes.count("\\init") == 0); - w->attributes["\\init"] = wire->attributes.at("\\init"); + log_assert(w->attributes.count(ID(init)) == 0); + w->attributes[ID(init)] = wire->attributes.at(ID(init)); } } @@ -1191,7 +1257,7 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin for (auto &si : signal_list) if (si.is_port) { char buffer[100]; - snprintf(buffer, 100, "\\n%d", si.id); + snprintf(buffer, 100, "\\ys__n%d", si.id); RTLIL::SigSig conn; if (si.type != G(NONE)) { conn.first = si.bit; @@ -1226,7 +1292,7 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin struct AbcPass : public Pass { AbcPass() : Pass("abc", "use ABC for technology mapping") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -1345,20 +1411,27 @@ struct AbcPass : public Pass { // log("\n"); log(" -g type1,type2,...\n"); log(" Map to the specified list of gate types. Supported gates types are:\n"); - log(" AND, NAND, OR, NOR, XOR, XNOR, ANDNOT, ORNOT, MUX, AOI3, OAI3, AOI4, OAI4.\n"); + // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| + log(" AND, NAND, OR, NOR, XOR, XNOR, ANDNOT, ORNOT, MUX,\n"); + log(" NMUX, AOI3, OAI3, AOI4, OAI4.\n"); log(" (The NOT gate is always added to this list automatically.)\n"); log("\n"); log(" The following aliases can be used to reference common sets of gate types:\n"); log(" simple: AND OR XOR MUX\n"); - log(" cmos2: NAND NOR\n"); - log(" cmos3: NAND NOR AOI3 OAI3\n"); - log(" cmos4: NAND NOR AOI3 OAI3 AOI4 OAI4\n"); - log(" gates: AND NAND OR NOR XOR XNOR ANDNOT ORNOT\n"); - log(" aig: AND NAND OR NOR ANDNOT ORNOT\n"); + log(" cmos2: NAND NOR\n"); + log(" cmos3: NAND NOR AOI3 OAI3\n"); + log(" cmos4: NAND NOR AOI3 OAI3 AOI4 OAI4\n"); + log(" cmos: NAND NOR AOI3 OAI3 AOI4 OAI4 NMUX MUX XOR XNOR\n"); + log(" gates: AND NAND OR NOR XOR XNOR ANDNOT ORNOT\n"); + log(" aig: AND NAND OR NOR ANDNOT ORNOT\n"); + log("\n"); + log(" The alias 'all' represent the full set of all gate types.\n"); log("\n"); log(" Prefix a gate type with a '-' to remove it from the list. For example\n"); log(" the arguments 'AND,OR,XOR' and 'simple,-MUX' are equivalent.\n"); log("\n"); + log(" The default is 'all,-NMUX,-AOI3,-OAI3,-AOI4,-OAI4'.\n"); + log("\n"); log(" -dff\n"); log(" also pass $_DFF_?_ and $_DFFE_??_ cells through ABC. modules with many\n"); log(" clock domains are automatically partitioned in clock domains and each\n"); @@ -1385,16 +1458,25 @@ struct AbcPass : public Pass { log(" this attribute is a unique integer for each ABC process started. This\n"); log(" is useful for debugging the partitioning of clock domains.\n"); log("\n"); + log(" -dress\n"); + log(" run the 'dress' command after all other ABC commands. This aims to\n"); + log(" preserve naming by an equivalence check between the original and post-ABC\n"); + log(" netlists (experimental).\n"); + log("\n"); log("When neither -liberty nor -lut is used, the Yosys standard cell library is\n"); log("loaded into ABC before the ABC script is executed.\n"); log("\n"); - log("This pass does not operate on modules with unprocessed processes in it.\n"); - log("(I.e. the 'proc' pass should be used first to convert processes to netlists.)\n"); + log("Note that this is a logic optimization pass within Yosys that is calling ABC\n"); + log("internally. This is not going to \"run ABC on your design\". It will instead run\n"); + log("ABC on logic snippets extracted from your design. You will not get any useful\n"); + log("output when passing an ABC script that writes a file. Instead write your full\n"); + log("design as BLIF file with write_blif and then load that into ABC externally if\n"); + log("you want to use ABC to convert your design into another format.\n"); log("\n"); log("[1] http://www.eecs.berkeley.edu/~alanmi/abc/\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing ABC pass (technology mapping using ABC).\n"); log_push(); @@ -1415,6 +1497,7 @@ struct AbcPass : public Pass { std::string delay_target, sop_inputs, sop_products, lutin_shared = "-S 1"; bool fast_mode = false, dff_mode = false, keepff = false, cleanup = true; bool show_tempdir = false, sop_mode = false; + bool abc_dress = false; vector<int> lut_costs; markgroups = false; @@ -1422,6 +1505,7 @@ struct AbcPass : public Pass { map_mux8 = false; map_mux16 = false; enabled_gates.clear(); + cmos_cost = false; #ifdef _WIN32 #ifndef ABCEXTERNAL @@ -1430,7 +1514,47 @@ struct AbcPass : public Pass { #endif #endif - size_t argidx; + // get arguments from scratchpad first, then override by command arguments + std::string lut_arg, luts_arg, g_arg; + exe_file = design->scratchpad_get_string("abc.exe", exe_file /* inherit default value if not set */); + script_file = design->scratchpad_get_string("abc.script", script_file); + liberty_file = design->scratchpad_get_string("abc.liberty", liberty_file); + constr_file = design->scratchpad_get_string("abc.constr", constr_file); + if (design->scratchpad.count("abc.D")) { + delay_target = "-D " + design->scratchpad_get_string("abc.D"); + } + if (design->scratchpad.count("abc.I")) { + sop_inputs = "-I " + design->scratchpad_get_string("abc.I"); + } + if (design->scratchpad.count("abc.P")) { + sop_products = "-P " + design->scratchpad_get_string("abc.P"); + } + if (design->scratchpad.count("abc.S")) { + lutin_shared = "-S " + design->scratchpad_get_string("abc.S"); + } + lut_arg = design->scratchpad_get_string("abc.lut", lut_arg); + luts_arg = design->scratchpad_get_string("abc.luts", luts_arg); + sop_mode = design->scratchpad_get_bool("abc.sop", sop_mode); + map_mux4 = design->scratchpad_get_bool("abc.mux4", map_mux4); + map_mux8 = design->scratchpad_get_bool("abc.mux8", map_mux8); + map_mux16 = design->scratchpad_get_bool("abc.mux16", map_mux16); + abc_dress = design->scratchpad_get_bool("abc.dress", abc_dress); + g_arg = design->scratchpad_get_string("abc.g", g_arg); + + fast_mode = design->scratchpad_get_bool("abc.fast", fast_mode); + dff_mode = design->scratchpad_get_bool("abc.dff", dff_mode); + if (design->scratchpad.count("abc.clk")) { + clk_str = design->scratchpad_get_string("abc.clk"); + dff_mode = true; + } + keepff = design->scratchpad_get_bool("abc.keepff", keepff); + cleanup = !design->scratchpad_get_bool("abc.nocleanup", !cleanup); + keepff = design->scratchpad_get_bool("abc.keepff", keepff); + show_tempdir = design->scratchpad_get_bool("abc.showtmp", show_tempdir); + markgroups = design->scratchpad_get_bool("abc.markgroups", markgroups); + + size_t argidx, g_argidx; + bool g_arg_from_cmd = false; char pwd [PATH_MAX]; if (!getcwd(pwd, sizeof(pwd))) { log_cmd_error("getcwd failed: %s\n", strerror(errno)); @@ -1444,23 +1568,14 @@ struct AbcPass : public Pass { } if (arg == "-script" && argidx+1 < args.size()) { script_file = args[++argidx]; - rewrite_filename(script_file); - if (!script_file.empty() && !is_absolute_path(script_file) && script_file[0] != '+') - script_file = std::string(pwd) + "/" + script_file; continue; } if (arg == "-liberty" && argidx+1 < args.size()) { liberty_file = args[++argidx]; - rewrite_filename(liberty_file); - if (!liberty_file.empty() && !is_absolute_path(liberty_file)) - liberty_file = std::string(pwd) + "/" + liberty_file; continue; } if (arg == "-constr" && argidx+1 < args.size()) { - rewrite_filename(constr_file); constr_file = args[++argidx]; - if (!constr_file.empty() && !is_absolute_path(constr_file)) - constr_file = std::string(pwd) + "/" + constr_file; continue; } if (arg == "-D" && argidx+1 < args.size()) { @@ -1480,37 +1595,11 @@ struct AbcPass : public Pass { continue; } if (arg == "-lut" && argidx+1 < args.size()) { - string arg = args[++argidx]; - size_t pos = arg.find_first_of(':'); - int lut_mode = 0, lut_mode2 = 0; - if (pos != string::npos) { - lut_mode = atoi(arg.substr(0, pos).c_str()); - lut_mode2 = atoi(arg.substr(pos+1).c_str()); - } else { - lut_mode = atoi(arg.c_str()); - lut_mode2 = lut_mode; - } - lut_costs.clear(); - for (int i = 0; i < lut_mode; i++) - lut_costs.push_back(1); - for (int i = lut_mode; i < lut_mode2; i++) - lut_costs.push_back(2 << (i - lut_mode)); + lut_arg = args[++argidx]; continue; } if (arg == "-luts" && argidx+1 < args.size()) { - lut_costs.clear(); - for (auto &tok : split_tokens(args[++argidx], ",")) { - auto parts = split_tokens(tok, ":"); - if (GetSize(parts) == 0 && !lut_costs.empty()) - lut_costs.push_back(lut_costs.back()); - else if (GetSize(parts) == 1) - lut_costs.push_back(atoi(parts.at(0).c_str())); - else if (GetSize(parts) == 2) - while (GetSize(lut_costs) < atoi(parts.at(0).c_str())) - lut_costs.push_back(atoi(parts.at(1).c_str())); - else - log_cmd_error("Invalid -luts syntax.\n"); - } + luts_arg = args[++argidx]; continue; } if (arg == "-sop") { @@ -1529,86 +1618,16 @@ struct AbcPass : public Pass { map_mux16 = true; continue; } + if (arg == "-dress") { + abc_dress = true; + continue; + } if (arg == "-g" && argidx+1 < args.size()) { - for (auto g : split_tokens(args[++argidx], ",")) { - vector<string> gate_list; - bool remove_gates = false; - if (GetSize(g) > 0 && g[0] == '-') { - remove_gates = true; - g = g.substr(1); - } - if (g == "AND") goto ok_gate; - if (g == "NAND") goto ok_gate; - if (g == "OR") goto ok_gate; - if (g == "NOR") goto ok_gate; - if (g == "XOR") goto ok_gate; - if (g == "XNOR") goto ok_gate; - if (g == "ANDNOT") goto ok_gate; - if (g == "ORNOT") goto ok_gate; - if (g == "MUX") goto ok_gate; - if (g == "AOI3") goto ok_gate; - if (g == "OAI3") goto ok_gate; - if (g == "AOI4") goto ok_gate; - if (g == "OAI4") goto ok_gate; - if (g == "simple") { - gate_list.push_back("AND"); - gate_list.push_back("OR"); - gate_list.push_back("XOR"); - gate_list.push_back("MUX"); - goto ok_alias; - } - if (g == "cmos2") { - gate_list.push_back("NAND"); - gate_list.push_back("NOR"); - goto ok_alias; - } - if (g == "cmos3") { - gate_list.push_back("NAND"); - gate_list.push_back("NOR"); - gate_list.push_back("AOI3"); - gate_list.push_back("OAI3"); - goto ok_alias; - } - if (g == "cmos4") { - gate_list.push_back("NAND"); - gate_list.push_back("NOR"); - gate_list.push_back("AOI3"); - gate_list.push_back("OAI3"); - gate_list.push_back("AOI4"); - gate_list.push_back("OAI4"); - goto ok_alias; - } - if (g == "gates") { - gate_list.push_back("AND"); - gate_list.push_back("NAND"); - gate_list.push_back("OR"); - gate_list.push_back("NOR"); - gate_list.push_back("XOR"); - gate_list.push_back("XNOR"); - gate_list.push_back("ANDNOT"); - gate_list.push_back("ORNOT"); - goto ok_alias; - } - if (g == "aig") { - gate_list.push_back("AND"); - gate_list.push_back("NAND"); - gate_list.push_back("OR"); - gate_list.push_back("NOR"); - gate_list.push_back("ANDNOT"); - gate_list.push_back("ORNOT"); - goto ok_alias; - } - cmd_error(args, argidx, stringf("Unsupported gate type: %s", g.c_str())); - ok_gate: - gate_list.push_back(g); - ok_alias: - for (auto gate : gate_list) { - if (remove_gates) - enabled_gates.erase(gate); - else - enabled_gates.insert(gate); - } - } + if (g_arg_from_cmd) + log_cmd_error("Can only use -g once. Please combine."); + g_arg = args[++argidx]; + g_argidx = argidx; + g_arg_from_cmd = true; continue; } if (arg == "-fast") { @@ -1644,11 +1663,196 @@ struct AbcPass : public Pass { } extra_args(args, argidx, design); + rewrite_filename(script_file); + if (!script_file.empty() && !is_absolute_path(script_file) && script_file[0] != '+') + script_file = std::string(pwd) + "/" + script_file; + rewrite_filename(liberty_file); + if (!liberty_file.empty() && !is_absolute_path(liberty_file)) + liberty_file = std::string(pwd) + "/" + liberty_file; + rewrite_filename(constr_file); + if (!constr_file.empty() && !is_absolute_path(constr_file)) + constr_file = std::string(pwd) + "/" + constr_file; + + // handle -lut argument + if (!lut_arg.empty()) { + size_t pos = lut_arg.find_first_of(':'); + int lut_mode = 0, lut_mode2 = 0; + if (pos != string::npos) { + lut_mode = atoi(lut_arg.substr(0, pos).c_str()); + lut_mode2 = atoi(lut_arg.substr(pos+1).c_str()); + } else { + lut_mode = atoi(lut_arg.c_str()); + lut_mode2 = lut_mode; + } + lut_costs.clear(); + for (int i = 0; i < lut_mode; i++) + lut_costs.push_back(1); + for (int i = lut_mode; i < lut_mode2; i++) + lut_costs.push_back(2 << (i - lut_mode)); + } + //handle -luts argument + if (!luts_arg.empty()){ + lut_costs.clear(); + for (auto &tok : split_tokens(luts_arg, ",")) { + auto parts = split_tokens(tok, ":"); + if (GetSize(parts) == 0 && !lut_costs.empty()) + lut_costs.push_back(lut_costs.back()); + else if (GetSize(parts) == 1) + lut_costs.push_back(atoi(parts.at(0).c_str())); + else if (GetSize(parts) == 2) + while (GetSize(lut_costs) < std::atoi(parts.at(0).c_str())) + lut_costs.push_back(atoi(parts.at(1).c_str())); + else + log_cmd_error("Invalid -luts syntax.\n"); + } + } + + // handle -g argument + if (!g_arg.empty()){ + for (auto g : split_tokens(g_arg, ",")) { + vector<string> gate_list; + bool remove_gates = false; + if (GetSize(g) > 0 && g[0] == '-') { + remove_gates = true; + g = g.substr(1); + } + if (g == "AND") goto ok_gate; + if (g == "NAND") goto ok_gate; + if (g == "OR") goto ok_gate; + if (g == "NOR") goto ok_gate; + if (g == "XOR") goto ok_gate; + if (g == "XNOR") goto ok_gate; + if (g == "ANDNOT") goto ok_gate; + if (g == "ORNOT") goto ok_gate; + if (g == "MUX") goto ok_gate; + if (g == "NMUX") goto ok_gate; + if (g == "AOI3") goto ok_gate; + if (g == "OAI3") goto ok_gate; + if (g == "AOI4") goto ok_gate; + if (g == "OAI4") goto ok_gate; + if (g == "simple") { + gate_list.push_back("AND"); + gate_list.push_back("OR"); + gate_list.push_back("XOR"); + gate_list.push_back("MUX"); + goto ok_alias; + } + if (g == "cmos2") { + if (!remove_gates) + cmos_cost = true; + gate_list.push_back("NAND"); + gate_list.push_back("NOR"); + goto ok_alias; + } + if (g == "cmos3") { + if (!remove_gates) + cmos_cost = true; + gate_list.push_back("NAND"); + gate_list.push_back("NOR"); + gate_list.push_back("AOI3"); + gate_list.push_back("OAI3"); + goto ok_alias; + } + if (g == "cmos4") { + if (!remove_gates) + cmos_cost = true; + gate_list.push_back("NAND"); + gate_list.push_back("NOR"); + gate_list.push_back("AOI3"); + gate_list.push_back("OAI3"); + gate_list.push_back("AOI4"); + gate_list.push_back("OAI4"); + goto ok_alias; + } + if (g == "cmos") { + if (!remove_gates) + cmos_cost = true; + gate_list.push_back("NAND"); + gate_list.push_back("NOR"); + gate_list.push_back("AOI3"); + gate_list.push_back("OAI3"); + gate_list.push_back("AOI4"); + gate_list.push_back("OAI4"); + gate_list.push_back("NMUX"); + gate_list.push_back("MUX"); + gate_list.push_back("XOR"); + gate_list.push_back("XNOR"); + goto ok_alias; + } + if (g == "gates") { + gate_list.push_back("AND"); + gate_list.push_back("NAND"); + gate_list.push_back("OR"); + gate_list.push_back("NOR"); + gate_list.push_back("XOR"); + gate_list.push_back("XNOR"); + gate_list.push_back("ANDNOT"); + gate_list.push_back("ORNOT"); + goto ok_alias; + } + if (g == "aig") { + gate_list.push_back("AND"); + gate_list.push_back("NAND"); + gate_list.push_back("OR"); + gate_list.push_back("NOR"); + gate_list.push_back("ANDNOT"); + gate_list.push_back("ORNOT"); + goto ok_alias; + } + if (g == "all") { + gate_list.push_back("AND"); + gate_list.push_back("NAND"); + gate_list.push_back("OR"); + gate_list.push_back("NOR"); + gate_list.push_back("XOR"); + gate_list.push_back("XNOR"); + gate_list.push_back("ANDNOT"); + gate_list.push_back("ORNOT"); + gate_list.push_back("AOI3"); + gate_list.push_back("OAI3"); + gate_list.push_back("AOI4"); + gate_list.push_back("OAI4"); + gate_list.push_back("MUX"); + gate_list.push_back("NMUX"); + } + if (g_arg_from_cmd) + cmd_error(args, g_argidx, stringf("Unsupported gate type: %s", g.c_str())); + else + log_cmd_error("Unsupported gate type: %s", g.c_str()); + ok_gate: + gate_list.push_back(g); + ok_alias: + for (auto gate : gate_list) { + if (remove_gates) + enabled_gates.erase(gate); + else + enabled_gates.insert(gate); + } + } + } + if (!lut_costs.empty() && !liberty_file.empty()) - log_cmd_error("Got -lut and -liberty! This two options are exclusive.\n"); + log_cmd_error("Got -lut and -liberty! These two options are exclusive.\n"); if (!constr_file.empty() && liberty_file.empty()) log_cmd_error("Got -constr but no -liberty!\n"); + if (enabled_gates.empty()) { + enabled_gates.insert("AND"); + enabled_gates.insert("NAND"); + enabled_gates.insert("OR"); + enabled_gates.insert("NOR"); + enabled_gates.insert("XOR"); + enabled_gates.insert("XNOR"); + enabled_gates.insert("ANDNOT"); + enabled_gates.insert("ORNOT"); + // enabled_gates.insert("AOI3"); + // enabled_gates.insert("OAI3"); + // enabled_gates.insert("AOI4"); + // enabled_gates.insert("OAI4"); + enabled_gates.insert("MUX"); + // enabled_gates.insert("NMUX"); + } + for (auto mod : design->selected_modules()) { if (mod->processes.size() > 0) { @@ -1660,16 +1864,16 @@ struct AbcPass : public Pass { signal_init.clear(); for (Wire *wire : mod->wires()) - if (wire->attributes.count("\\init")) { + if (wire->attributes.count(ID(init))) { SigSpec initsig = assign_map(wire); - Const initval = wire->attributes.at("\\init"); + Const initval = wire->attributes.at(ID(init)); for (int i = 0; i < GetSize(initsig) && i < GetSize(initval); i++) switch (initval[i]) { case State::S0: signal_init[initsig[i]] = State::S0; break; case State::S1: - signal_init[initsig[i]] = State::S0; + signal_init[initsig[i]] = State::S1; break; default: break; @@ -1678,7 +1882,7 @@ struct AbcPass : public Pass { if (!dff_mode || !clk_str.empty()) { abc_module(design, mod, script_file, exe_file, liberty_file, constr_file, cleanup, lut_costs, dff_mode, clk_str, keepff, - delay_target, sop_inputs, sop_products, lutin_shared, fast_mode, mod->selected_cells(), show_tempdir, sop_mode); + delay_target, sop_inputs, sop_products, lutin_shared, fast_mode, mod->selected_cells(), show_tempdir, sop_mode, abc_dress); continue; } @@ -1719,16 +1923,16 @@ struct AbcPass : public Pass { } } - if (cell->type == "$_DFF_N_" || cell->type == "$_DFF_P_") + if (cell->type.in(ID($_DFF_N_), ID($_DFF_P_))) { - key = clkdomain_t(cell->type == "$_DFF_P_", assign_map(cell->getPort("\\C")), true, RTLIL::SigSpec()); + key = clkdomain_t(cell->type == ID($_DFF_P_), assign_map(cell->getPort(ID(C))), true, RTLIL::SigSpec()); } else - if (cell->type == "$_DFFE_NN_" || cell->type == "$_DFFE_NP_" || cell->type == "$_DFFE_PN_" || cell->type == "$_DFFE_PP_") + if (cell->type.in(ID($_DFFE_NN_), ID($_DFFE_NP_), ID($_DFFE_PN_), ID($_DFFE_PP_))) { - bool this_clk_pol = cell->type == "$_DFFE_PN_" || cell->type == "$_DFFE_PP_"; - bool this_en_pol = cell->type == "$_DFFE_NP_" || cell->type == "$_DFFE_PP_"; - key = clkdomain_t(this_clk_pol, assign_map(cell->getPort("\\C")), this_en_pol, assign_map(cell->getPort("\\E"))); + bool this_clk_pol = cell->type.in(ID($_DFFE_PN_), ID($_DFFE_PP_)); + bool this_en_pol = cell->type.in(ID($_DFFE_NP_), ID($_DFFE_PP_)); + key = clkdomain_t(this_clk_pol, assign_map(cell->getPort(ID(C))), this_en_pol, assign_map(cell->getPort(ID(E)))); } else continue; @@ -1823,7 +2027,7 @@ struct AbcPass : public Pass { en_polarity = std::get<2>(it.first); en_sig = assign_map(std::get<3>(it.first)); abc_module(design, mod, script_file, exe_file, liberty_file, constr_file, cleanup, lut_costs, !clk_sig.empty(), "$", - keepff, delay_target, sop_inputs, sop_products, lutin_shared, fast_mode, it.second, show_tempdir, sop_mode); + keepff, delay_target, sop_inputs, sop_products, lutin_shared, fast_mode, it.second, show_tempdir, sop_mode, abc_dress); assign_map.set(mod); } } diff --git a/passes/techmap/abc9.cc b/passes/techmap/abc9.cc new file mode 100644 index 000000000..2aeda16d6 --- /dev/null +++ b/passes/techmap/abc9.cc @@ -0,0 +1,332 @@ +/* + * yosys -- Yosys Open SYnthesis Suite + * + * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at> + * (C) 2019 Eddie Hung <eddie@fpgeh.com> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +// [[CITE]] ABC +// Berkeley Logic Synthesis and Verification Group, ABC: A System for Sequential Synthesis and Verification +// http://www.eecs.berkeley.edu/~alanmi/abc/ + +#include "kernel/register.h" +#include "kernel/celltypes.h" +#include "kernel/rtlil.h" +#include "kernel/log.h" + +// abc9_exe.cc +std::string fold_abc9_cmd(std::string str); + +USING_YOSYS_NAMESPACE +PRIVATE_NAMESPACE_BEGIN + +struct Abc9Pass : public ScriptPass +{ + Abc9Pass() : ScriptPass("abc9", "use ABC9 for technology mapping") { } + void on_register() YS_OVERRIDE + { + RTLIL::constpad["abc9.script.default"] = "+&scorr; &sweep; &dc2; &dch -f; &ps; &if {C} {W} {D} {R} -v; &mfs"; + RTLIL::constpad["abc9.script.default.area"] = "+&scorr; &sweep; &dc2; &dch -f; &ps; &if {C} {W} {D} {R} -a -v; &mfs"; + RTLIL::constpad["abc9.script.default.fast"] = "+&if {C} {W} {D} {R} -v"; + // Based on ABC's &flow + RTLIL::constpad["abc9.script.flow"] = "+&scorr; &sweep;" \ + "&dch -C 500;" \ + /* Round 1 */ \ + /* Map 1 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \ + "&st; &dsdb;" \ + /* Map 2 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \ + "&st; &syn2 -m -R 10; &dsdb;" \ + "&blut -a -K 6;" \ + /* Map 3 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \ + /* Round 2 */ \ + "&st; &sopb;" \ + /* Map 1 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \ + "&st; &dsdb;" \ + /* Map 2 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \ + "&st; &syn2 -m -R 10; &dsdb;" \ + "&blut -a -K 6;" \ + /* Map 3 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \ + /* Round 3 */ \ + /* Map 1 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \ + "&st; &dsdb;" \ + /* Map 2 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \ + "&st; &syn2 -m -R 10; &dsdb;" \ + "&blut -a -K 6;" \ + /* Map 3 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;"; + // Based on ABC's &flow2 + RTLIL::constpad["abc9.script.flow2"] = "+&scorr; &sweep;" \ + /* Comm1 */ "&synch2 -K 6 -C 500; &if -m {C} {W} {D} {R} -v; &mfs "/*"-W 4 -M 500 -C 7000"*/"; &save;"\ + /* Comm2 */ "&dch -C 500; &if -m {C} {W} {D} {R} -v; &mfs "/*"-W 4 -M 500 -C 7000"*/"; &save;"\ + "&load; &st; &sopb -R 10 -C 4; " \ + /* Comm3 */ "&synch2 -K 6 -C 500; &if -m "/*"-E 5"*/" {C} {W} {D} {R} -v; &mfs "/*"-W 4 -M 500 -C 7000"*/"; &save;"\ + /* Comm2 */ "&dch -C 500; &if -m {C} {W} {D} {R} -v; &mfs "/*"-W 4 -M 500 -C 7000"*/"; &save; "\ + "&load"; + // Based on ABC's &flow3 + RTLIL::constpad["abc9.script.flow3"] = "+&scorr; &sweep;" \ + "&if {C} {W} {D}; &save; &st; &syn2; &if {C} {W} {D} {R} -v; &save; &load;"\ + "&st; &if {C} -g -K 6; &dch -f; &if {C} {W} {D} {R} -v; &save; &load;"\ + "&st; &if {C} -g -K 6; &synch2; &if {C} {W} {D} {R} -v; &save; &load;"\ + "&mfs"; + } + void help() YS_OVERRIDE + { + // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| + log("\n"); + log(" abc9 [options] [selection]\n"); + log("\n"); + log("This script pass performs a sequence of commands to facilitate the use of the ABC\n"); + log("tool [1] for technology mapping of the current design to a target FPGA\n"); + log("architecture. Only fully-selected modules are supported.\n"); + log("\n"); + log(" -run <from_label>:<to_label>\n"); + log(" only run the commands between the labels (see below). an empty\n"); + log(" from label is synonymous to 'begin', and empty to label is\n"); + log(" synonymous to the end of the command list.\n"); + log("\n"); + log(" -exe <command>\n"); +#ifdef ABCEXTERNAL + log(" use the specified command instead of \"" ABCEXTERNAL "\" to execute ABC.\n"); +#else + log(" use the specified command instead of \"<yosys-bindir>/yosys-abc\" to execute ABC.\n"); +#endif + log(" This can e.g. be used to call a specific version of ABC or a wrapper.\n"); + log("\n"); + log(" -script <file>\n"); + log(" use the specified ABC script file instead of the default script.\n"); + log("\n"); + log(" if <file> starts with a plus sign (+), then the rest of the filename\n"); + log(" string is interpreted as the command string to be passed to ABC. The\n"); + log(" leading plus sign is removed and all commas (,) in the string are\n"); + log(" replaced with blanks before the string is passed to ABC.\n"); + log("\n"); + log(" if no -script parameter is given, the following scripts are used:\n"); + log("%s\n", fold_abc9_cmd(RTLIL::constpad.at("abc9.script.default").substr(1,std::string::npos)).c_str()); + log("\n"); + log(" -fast\n"); + log(" use different default scripts that are slightly faster (at the cost\n"); + log(" of output quality):\n"); + log("%s\n", fold_abc9_cmd(RTLIL::constpad.at("abc9.script.default.fast").substr(1,std::string::npos)).c_str()); + log("\n"); + log(" -D <picoseconds>\n"); + log(" set delay target. the string {D} in the default scripts above is\n"); + log(" replaced by this option when used, and an empty string otherwise\n"); + log(" (indicating best possible delay).\n"); + log("\n"); +// log(" -S <num>\n"); +// log(" maximum number of LUT inputs shared.\n"); +// log(" (replaces {S} in the default scripts above, default: -S 1)\n"); +// log("\n"); + log(" -lut <width>\n"); + log(" generate netlist using luts of (max) the specified width.\n"); + log("\n"); + log(" -lut <w1>:<w2>\n"); + log(" generate netlist using luts of (max) the specified width <w2>. All\n"); + log(" luts with width <= <w1> have constant cost. for luts larger than <w1>\n"); + log(" the area cost doubles with each additional input bit. the delay cost\n"); + log(" is still constant for all lut widths.\n"); + log("\n"); + log(" -lut <file>\n"); + log(" pass this file with lut library to ABC.\n"); + log("\n"); + log(" -luts <cost1>,<cost2>,<cost3>,<sizeN>:<cost4-N>,..\n"); + log(" generate netlist using luts. Use the specified costs for luts with 1,\n"); + log(" 2, 3, .. inputs.\n"); + log("\n"); + log(" -dff\n"); + log(" also pass $_ABC9_FF_ cells through to ABC. modules with many clock\n"); + log(" domains are marked as such and automatically partitioned by ABC.\n"); + log("\n"); + log(" -nocleanup\n"); + log(" when this option is used, the temporary files created by this pass\n"); + log(" are not removed. this is useful for debugging.\n"); + log("\n"); + log(" -showtmp\n"); + log(" print the temp dir name in log. usually this is suppressed so that the\n"); + log(" command output is identical across runs.\n"); + log("\n"); + log(" -box <file>\n"); + log(" pass this file with box library to ABC.\n"); + log("\n"); + log("Note that this is a logic optimization pass within Yosys that is calling ABC\n"); + log("internally. This is not going to \"run ABC on your design\". It will instead run\n"); + log("ABC on logic snippets extracted from your design. You will not get any useful\n"); + log("output when passing an ABC script that writes a file. Instead write your full\n"); + log("design as an XAIGER file with `write_xaiger' and then load that into ABC\n"); + log("externally if you want to use ABC to convert your design into another format.\n"); + log("\n"); + log("[1] http://www.eecs.berkeley.edu/~alanmi/abc/\n"); + log("\n"); + help_script(); + log("\n"); + } + + std::stringstream exe_cmd; + bool dff_mode, cleanup; + + void clear_flags() YS_OVERRIDE + { + exe_cmd.str(""); + exe_cmd << "abc9_exe"; + dff_mode = false; + cleanup = true; + } + + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE + { + std::string run_from, run_to; + clear_flags(); + + // get arguments from scratchpad first, then override by command arguments + dff_mode = design->scratchpad_get_bool("abc9.dff", dff_mode); + cleanup = !design->scratchpad_get_bool("abc9.nocleanup", !cleanup); + + if (design->scratchpad_get_bool("abc9.debug")) { + cleanup = false; + exe_cmd << " -showtmp"; + } + + size_t argidx; + for (argidx = 1; argidx < args.size(); argidx++) { + std::string arg = args[argidx]; + if ((arg == "-exe" || arg == "-script" || arg == "-D" || + /* arg == "-S" || */ arg == "-lut" || arg == "-luts" || + arg == "-box" || arg == "-W") && + argidx+1 < args.size()) { + exe_cmd << " " << arg << " " << args[++argidx]; + continue; + } + if (arg == "-fast" || /* arg == "-dff" || */ + /* arg == "-nocleanup" || */ arg == "-showtmp") { + exe_cmd << " " << arg; + continue; + } + if (arg == "-dff") { + dff_mode = true; + exe_cmd << " " << arg; + continue; + } + if (arg == "-nocleanup") { + cleanup = false; + continue; + } + if (arg == "-run" && argidx+1 < args.size()) { + size_t pos = args[argidx+1].find(':'); + if (pos == std::string::npos) + break; + run_from = args[++argidx].substr(0, pos); + run_to = args[argidx].substr(pos+1); + continue; + } + break; + } + extra_args(args, argidx, design); + + log_assert(design); + if (design->selected_modules().empty()) { + log_warning("No modules selected for ABC9 techmapping.\n"); + return; + } + + log_header(design, "Executing ABC9 pass.\n"); + log_push(); + + run_script(design, run_from, run_to); + + log_pop(); + } + + void script() YS_OVERRIDE + { + if (check_label("pre")) { + run("scc -set_attr abc9_scc_id {}"); + if (help_mode) + run("abc9_ops -mark_scc -prep_xaiger [-dff]", "(option for -dff)"); + else + run("abc9_ops -mark_scc -prep_xaiger" + std::string(dff_mode ? " -dff" : ""), "(option for -dff)"); + run("select -set abc9_holes A:abc9_holes"); + run("flatten -wb @abc9_holes"); + run("techmap @abc9_holes"); + if (dff_mode || help_mode) + run("abc9_ops -prep_dff", "(only if -dff)"); + run("opt -purge @abc9_holes"); + run("aigmap"); + run("wbflip @abc9_holes"); + } + + if (check_label("map")) { + if (help_mode) { + run("foreach module in selection"); + run(" write_xaiger -map <abc-temp-dir>/input.sym <abc-temp-dir>/input.xaig"); + run(" abc9_exe -cwd <abc-temp-dir> [options]"); + run(" read_aiger -xaiger -wideports -module_name <module-name>$abc9 -map <abc-temp-dir>/input.sym <abc-temp-dir>/output.aig"); + run(" abc9_ops -reintegrate"); + } + else { + auto selected_modules = active_design->selected_modules(); + active_design->selection_stack.emplace_back(false); + + for (auto mod : selected_modules) { + if (mod->processes.size() > 0) { + log("Skipping module %s as it contains processes.\n", log_id(mod)); + continue; + } + log_assert(!mod->attributes.count(ID(abc9_box_id))); + + log_push(); + active_design->selection().select(mod); + + if (!active_design->selected_whole_module(mod)) + log_error("Can't handle partially selected module %s!\n", log_id(mod)); + + std::string tempdir_name = "/tmp/yosys-abc-XXXXXX"; + if (!cleanup) + tempdir_name[0] = tempdir_name[4] = '_'; + tempdir_name = make_temp_dir(tempdir_name); + + run(stringf("write_xaiger -map %s/input.sym %s/input.xaig", tempdir_name.c_str(), tempdir_name.c_str())); + + int num_outputs = active_design->scratchpad_get_int("write_xaiger.num_outputs"); + + log("Extracted %d AND gates and %d wires from module `%s' to a netlist network with %d inputs and %d outputs.\n", + active_design->scratchpad_get_int("write_xaiger.num_ands"), + active_design->scratchpad_get_int("write_xaiger.num_wires"), + log_id(mod), + active_design->scratchpad_get_int("write_xaiger.num_inputs"), + num_outputs); + if (num_outputs) { + run(stringf("%s -cwd %s", exe_cmd.str().c_str(), tempdir_name.c_str())); + run(stringf("read_aiger -xaiger -wideports -module_name %s$abc9 -map %s/input.sym %s/output.aig", log_id(mod), tempdir_name.c_str(), tempdir_name.c_str())); + run("abc9_ops -reintegrate"); + } + else + log("Don't call ABC as there is nothing to map.\n"); + + if (cleanup) { + log("Removing temp directory.\n"); + remove_directory(tempdir_name); + } + + active_design->selection().selected_modules.clear(); + log_pop(); + } + + active_design->selection_stack.pop_back(); + } + } + } +} Abc9Pass; + +PRIVATE_NAMESPACE_END diff --git a/passes/techmap/abc9_exe.cc b/passes/techmap/abc9_exe.cc new file mode 100644 index 000000000..01bf46539 --- /dev/null +++ b/passes/techmap/abc9_exe.cc @@ -0,0 +1,531 @@ +/* + * yosys -- Yosys Open SYnthesis Suite + * + * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at> + * 2019 Eddie Hung <eddie@fpgeh.com> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +// [[CITE]] ABC +// Berkeley Logic Synthesis and Verification Group, ABC: A System for Sequential Synthesis and Verification +// http://www.eecs.berkeley.edu/~alanmi/abc/ + +#include "kernel/register.h" +#include "kernel/log.h" + +#ifndef _WIN32 +# include <unistd.h> +# include <dirent.h> +#endif + +#ifdef YOSYS_LINK_ABC +extern "C" int Abc_RealMain(int argc, char *argv[]); +#endif + +std::string fold_abc9_cmd(std::string str) +{ + std::string token, new_str = " "; + int char_counter = 10; + + for (size_t i = 0; i <= str.size(); i++) { + if (i < str.size()) + token += str[i]; + if (i == str.size() || str[i] == ';') { + if (char_counter + token.size() > 75) + new_str += "\n ", char_counter = 14; + new_str += token, char_counter += token.size(); + token.clear(); + } + } + + return new_str; +} + +USING_YOSYS_NAMESPACE +PRIVATE_NAMESPACE_BEGIN + +std::string add_echos_to_abc9_cmd(std::string str) +{ + std::string new_str, token; + for (size_t i = 0; i < str.size(); i++) { + token += str[i]; + if (str[i] == ';') { + while (i+1 < str.size() && str[i+1] == ' ') + i++; + new_str += "echo + " + token + " " + token + " "; + token.clear(); + } + } + + if (!token.empty()) { + if (!new_str.empty()) + new_str += "echo + " + token + "; "; + new_str += token; + } + + return new_str; +} + +std::string replace_tempdir(std::string text, std::string tempdir_name, bool show_tempdir) +{ + if (show_tempdir) + return text; + + while (1) { + size_t pos = text.find(tempdir_name); + if (pos == std::string::npos) + break; + text = text.substr(0, pos) + "<abc-temp-dir>" + text.substr(pos + GetSize(tempdir_name)); + } + + std::string selfdir_name = proc_self_dirname(); + if (selfdir_name != "/") { + while (1) { + size_t pos = text.find(selfdir_name); + if (pos == std::string::npos) + break; + text = text.substr(0, pos) + "<yosys-exe-dir>/" + text.substr(pos + GetSize(selfdir_name)); + } + } + + return text; +} + +struct abc9_output_filter +{ + bool got_cr; + int escape_seq_state; + std::string linebuf; + std::string tempdir_name; + bool show_tempdir; + + abc9_output_filter(std::string tempdir_name, bool show_tempdir) : tempdir_name(tempdir_name), show_tempdir(show_tempdir) + { + got_cr = false; + escape_seq_state = 0; + } + + void next_char(char ch) + { + if (escape_seq_state == 0 && ch == '\033') { + escape_seq_state = 1; + return; + } + if (escape_seq_state == 1) { + escape_seq_state = ch == '[' ? 2 : 0; + return; + } + if (escape_seq_state == 2) { + if ((ch < '0' || '9' < ch) && ch != ';') + escape_seq_state = 0; + return; + } + escape_seq_state = 0; + if (ch == '\r') { + got_cr = true; + return; + } + if (ch == '\n') { + log("ABC: %s\n", replace_tempdir(linebuf, tempdir_name, show_tempdir).c_str()); + got_cr = false, linebuf.clear(); + return; + } + if (got_cr) + got_cr = false, linebuf.clear(); + linebuf += ch; + } + + void next_line(const std::string &line) + { + //int pi, po; + //if (sscanf(line.c_str(), "Start-point = pi%d. End-point = po%d.", &pi, &po) == 2) { + // log("ABC: Start-point = pi%d (%s). End-point = po%d (%s).\n", + // pi, pi_map.count(pi) ? pi_map.at(pi).c_str() : "???", + // po, po_map.count(po) ? po_map.at(po).c_str() : "???"); + // return; + //} + + for (char ch : line) + next_char(ch); + } +}; + +void abc9_module(RTLIL::Design *design, std::string script_file, std::string exe_file, + vector<int> lut_costs, bool dff_mode, std::string delay_target, std::string /*lutin_shared*/, bool fast_mode, + bool show_tempdir, std::string box_file, std::string lut_file, + std::string wire_delay, std::string tempdir_name +) +{ + std::string abc9_script; + + if (!lut_costs.empty()) + abc9_script += stringf("read_lut %s/lutdefs.txt; ", tempdir_name.c_str()); + else if (!lut_file.empty()) + abc9_script += stringf("read_lut %s; ", lut_file.c_str()); + else + log_abort(); + + log_assert(!box_file.empty()); + abc9_script += stringf("read_box %s; ", box_file.c_str()); + abc9_script += stringf("&read %s/input.xaig; &ps; ", tempdir_name.c_str()); + + if (!script_file.empty()) { + if (script_file[0] == '+') { + for (size_t i = 1; i < script_file.size(); i++) + if (script_file[i] == '\'') + abc9_script += "'\\''"; + else if (script_file[i] == ',') + abc9_script += " "; + else + abc9_script += script_file[i]; + } else + abc9_script += stringf("source %s", script_file.c_str()); + } else if (!lut_costs.empty() || !lut_file.empty()) { + abc9_script += fast_mode ? RTLIL::constpad.at("abc9.script.default.fast").substr(1,std::string::npos) + : RTLIL::constpad.at("abc9.script.default").substr(1,std::string::npos); + } else + log_abort(); + + for (size_t pos = abc9_script.find("{D}"); pos != std::string::npos; pos = abc9_script.find("{D}", pos)) + abc9_script = abc9_script.substr(0, pos) + delay_target + abc9_script.substr(pos+3); + + //for (size_t pos = abc9_script.find("{S}"); pos != std::string::npos; pos = abc9_script.find("{S}", pos)) + // abc9_script = abc9_script.substr(0, pos) + lutin_shared + abc9_script.substr(pos+3); + + for (size_t pos = abc9_script.find("{W}"); pos != std::string::npos; pos = abc9_script.find("{W}", pos)) + abc9_script = abc9_script.substr(0, pos) + wire_delay + abc9_script.substr(pos+3); + + std::string C; + if (design->scratchpad.count("abc9.if.C")) + C = "-C " + design->scratchpad_get_string("abc9.if.C"); + for (size_t pos = abc9_script.find("{C}"); pos != std::string::npos; pos = abc9_script.find("{C}", pos)) + abc9_script = abc9_script.substr(0, pos) + C + abc9_script.substr(pos+3); + + std::string R; + if (design->scratchpad.count("abc9.if.R")) + R = "-R " + design->scratchpad_get_string("abc9.if.R"); + for (size_t pos = abc9_script.find("{R}"); pos != std::string::npos; pos = abc9_script.find("{R}", pos)) + abc9_script = abc9_script.substr(0, pos) + R + abc9_script.substr(pos+3); + + abc9_script += stringf("; &ps -l; &write -n %s/output.aig", tempdir_name.c_str()); + if (design->scratchpad_get_bool("abc9.verify")) { + if (dff_mode) + abc9_script += "; verify -s"; + else + abc9_script += "; verify"; + } + abc9_script += "; time"; + abc9_script = add_echos_to_abc9_cmd(abc9_script); + + for (size_t i = 0; i+1 < abc9_script.size(); i++) + if (abc9_script[i] == ';' && abc9_script[i+1] == ' ') + abc9_script[i+1] = '\n'; + + FILE *f = fopen(stringf("%s/abc.script", tempdir_name.c_str()).c_str(), "wt"); + fprintf(f, "%s\n", abc9_script.c_str()); + fclose(f); + + std::string buffer; + + log_header(design, "Executing ABC9.\n"); + + if (!lut_costs.empty()) { + buffer = stringf("%s/lutdefs.txt", tempdir_name.c_str()); + f = fopen(buffer.c_str(), "wt"); + if (f == NULL) + log_error("Opening %s for writing failed: %s\n", buffer.c_str(), strerror(errno)); + for (int i = 0; i < GetSize(lut_costs); i++) + fprintf(f, "%d %d.00 1.00\n", i+1, lut_costs.at(i)); + fclose(f); + } + + buffer = stringf("%s -s -f %s/abc.script 2>&1", exe_file.c_str(), tempdir_name.c_str()); + log("Running ABC command: %s\n", replace_tempdir(buffer, tempdir_name, show_tempdir).c_str()); + +#ifndef YOSYS_LINK_ABC + abc9_output_filter filt(tempdir_name, show_tempdir); + int ret = run_command(buffer, std::bind(&abc9_output_filter::next_line, filt, std::placeholders::_1)); +#else + // These needs to be mutable, supposedly due to getopt + char *abc9_argv[5]; + string tmp_script_name = stringf("%s/abc.script", tempdir_name.c_str()); + abc9_argv[0] = strdup(exe_file.c_str()); + abc9_argv[1] = strdup("-s"); + abc9_argv[2] = strdup("-f"); + abc9_argv[3] = strdup(tmp_script_name.c_str()); + abc9_argv[4] = 0; + int ret = Abc_RealMain(4, abc9_argv); + free(abc9_argv[0]); + free(abc9_argv[1]); + free(abc9_argv[2]); + free(abc9_argv[3]); +#endif + if (ret != 0) + log_error("ABC: execution of command \"%s\" failed: return code %d.\n", buffer.c_str(), ret); +} + +struct Abc9ExePass : public Pass { + Abc9ExePass() : Pass("abc9_exe", "use ABC9 for technology mapping") { } + void help() YS_OVERRIDE + { + // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| + log("\n"); + log(" abc9_exe [options]\n"); + log("\n"); + log(" \n"); + log("This pass uses the ABC tool [1] for technology mapping of the top module\n"); + log("(according to the (* top *) attribute or if only one module is currently selected)\n"); + log("to a target FPGA architecture.\n"); + log("\n"); + log(" -exe <command>\n"); +#ifdef ABCEXTERNAL + log(" use the specified command instead of \"" ABCEXTERNAL "\" to execute ABC.\n"); +#else + log(" use the specified command instead of \"<yosys-bindir>/yosys-abc\" to execute ABC.\n"); +#endif + log(" This can e.g. be used to call a specific version of ABC or a wrapper.\n"); + log("\n"); + log(" -script <file>\n"); + log(" use the specified ABC script file instead of the default script.\n"); + log("\n"); + log(" if <file> starts with a plus sign (+), then the rest of the filename\n"); + log(" string is interpreted as the command string to be passed to ABC. The\n"); + log(" leading plus sign is removed and all commas (,) in the string are\n"); + log(" replaced with blanks before the string is passed to ABC.\n"); + log("\n"); + log(" if no -script parameter is given, the following scripts are used:\n"); + log("%s\n", fold_abc9_cmd(RTLIL::constpad.at("abc9.script.default").substr(1,std::string::npos)).c_str()); + log("\n"); + log(" -fast\n"); + log(" use different default scripts that are slightly faster (at the cost\n"); + log(" of output quality):\n"); + log("%s\n", fold_abc9_cmd(RTLIL::constpad.at("abc9.script.default.fast").substr(1,std::string::npos)).c_str()); + log("\n"); + log(" -D <picoseconds>\n"); + log(" set delay target. the string {D} in the default scripts above is\n"); + log(" replaced by this option when used, and an empty string otherwise\n"); + log(" (indicating best possible delay).\n"); + log("\n"); +// log(" -S <num>\n"); +// log(" maximum number of LUT inputs shared.\n"); +// log(" (replaces {S} in the default scripts above, default: -S 1)\n"); +// log("\n"); + log(" -lut <width>\n"); + log(" generate netlist using luts of (max) the specified width.\n"); + log("\n"); + log(" -lut <w1>:<w2>\n"); + log(" generate netlist using luts of (max) the specified width <w2>. All\n"); + log(" luts with width <= <w1> have constant cost. for luts larger than <w1>\n"); + log(" the area cost doubles with each additional input bit. the delay cost\n"); + log(" is still constant for all lut widths.\n"); + log("\n"); + log(" -lut <file>\n"); + log(" pass this file with lut library to ABC.\n"); + log("\n"); + log(" -luts <cost1>,<cost2>,<cost3>,<sizeN>:<cost4-N>,..\n"); + log(" generate netlist using luts. Use the specified costs for luts with 1,\n"); + log(" 2, 3, .. inputs.\n"); + log("\n"); + log(" -showtmp\n"); + log(" print the temp dir name in log. usually this is suppressed so that the\n"); + log(" command output is identical across runs.\n"); + log("\n"); + log(" -box <file>\n"); + log(" pass this file with box library to ABC.\n"); + log("\n"); + log(" -cwd <dir>\n"); + log(" use this as the current working directory, inside which the 'input.xaig'\n"); + log(" file is expected. temporary files will be created in this directory, and\n"); + log(" the mapped result will be written to 'output.aig'.\n"); + log("\n"); + log("Note that this is a logic optimization pass within Yosys that is calling ABC\n"); + log("internally. This is not going to \"run ABC on your design\". It will instead run\n"); + log("ABC on logic snippets extracted from your design. You will not get any useful\n"); + log("output when passing an ABC script that writes a file. Instead write your full\n"); + log("design as BLIF file with write_blif and then load that into ABC externally if\n"); + log("you want to use ABC to convert your design into another format.\n"); + log("\n"); + log("[1] http://www.eecs.berkeley.edu/~alanmi/abc/\n"); + log("\n"); + } + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE + { + log_header(design, "Executing ABC9_MAP pass (technology mapping using ABC9).\n"); + +#ifdef ABCEXTERNAL + std::string exe_file = ABCEXTERNAL; +#else + std::string exe_file = proc_self_dirname() + "yosys-abc"; +#endif + std::string script_file, clk_str, box_file, lut_file; + std::string delay_target, lutin_shared = "-S 1", wire_delay; + std::string tempdir_name; + bool fast_mode = false, dff_mode = false; + bool show_tempdir = false; + vector<int> lut_costs; + +#if 0 + cleanup = false; + show_tempdir = true; +#endif + +#ifdef _WIN32 +#ifndef ABCEXTERNAL + if (!check_file_exists(exe_file + ".exe") && check_file_exists(proc_self_dirname() + "..\\yosys-abc.exe")) + exe_file = proc_self_dirname() + "..\\yosys-abc"; +#endif +#endif + + std::string lut_arg, luts_arg; + exe_file = design->scratchpad_get_string("abc9.exe", exe_file /* inherit default value if not set */); + script_file = design->scratchpad_get_string("abc9.script", script_file); + if (design->scratchpad.count("abc9.D")) { + delay_target = "-D " + design->scratchpad_get_string("abc9.D"); + } + lut_arg = design->scratchpad_get_string("abc9.lut", lut_arg); + luts_arg = design->scratchpad_get_string("abc9.luts", luts_arg); + fast_mode = design->scratchpad_get_bool("abc9.fast", fast_mode); + dff_mode = design->scratchpad_get_bool("abc9.dff", dff_mode); + show_tempdir = design->scratchpad_get_bool("abc9.showtmp", show_tempdir); + box_file = design->scratchpad_get_string("abc9.box", box_file); + if (design->scratchpad.count("abc9.W")) { + wire_delay = "-W " + design->scratchpad_get_string("abc9.W"); + } + + size_t argidx; + char pwd [PATH_MAX]; + if (!getcwd(pwd, sizeof(pwd))) { + log_cmd_error("getcwd failed: %s\n", strerror(errno)); + log_abort(); + } + for (argidx = 1; argidx < args.size(); argidx++) { + std::string arg = args[argidx]; + if (arg == "-exe" && argidx+1 < args.size()) { + exe_file = args[++argidx]; + continue; + } + if (arg == "-script" && argidx+1 < args.size()) { + script_file = args[++argidx]; + continue; + } + if (arg == "-D" && argidx+1 < args.size()) { + delay_target = "-D " + args[++argidx]; + continue; + } + //if (arg == "-S" && argidx+1 < args.size()) { + // lutin_shared = "-S " + args[++argidx]; + // continue; + //} + if (arg == "-lut" && argidx+1 < args.size()) { + lut_arg = args[++argidx]; + continue; + } + if (arg == "-luts" && argidx+1 < args.size()) { + lut_arg = args[++argidx]; + continue; + } + if (arg == "-fast") { + fast_mode = true; + continue; + } + if (arg == "-dff") { + dff_mode = true; + continue; + } + if (arg == "-showtmp") { + show_tempdir = true; + continue; + } + if (arg == "-box" && argidx+1 < args.size()) { + box_file = args[++argidx]; + continue; + } + if (arg == "-W" && argidx+1 < args.size()) { + wire_delay = "-W " + args[++argidx]; + continue; + } + if (arg == "-cwd" && argidx+1 < args.size()) { + tempdir_name = args[++argidx]; + continue; + } + break; + } + extra_args(args, argidx, design); + + rewrite_filename(script_file); + if (!script_file.empty() && !is_absolute_path(script_file) && script_file[0] != '+') + script_file = std::string(pwd) + "/" + script_file; + + // handle -lut / -luts args + if (!lut_arg.empty()) { + string arg = lut_arg; + if (arg.find_first_not_of("0123456789:") == std::string::npos) { + size_t pos = arg.find_first_of(':'); + int lut_mode = 0, lut_mode2 = 0; + if (pos != string::npos) { + lut_mode = atoi(arg.substr(0, pos).c_str()); + lut_mode2 = atoi(arg.substr(pos+1).c_str()); + } else { + lut_mode = atoi(arg.c_str()); + lut_mode2 = lut_mode; + } + lut_costs.clear(); + for (int i = 0; i < lut_mode; i++) + lut_costs.push_back(1); + for (int i = lut_mode; i < lut_mode2; i++) + lut_costs.push_back(2 << (i - lut_mode)); + } + else { + lut_file = arg; + rewrite_filename(lut_file); + if (!lut_file.empty() && !is_absolute_path(lut_file) && lut_file[0] != '+') + lut_file = std::string(pwd) + "/" + lut_file; + } + } + if (!luts_arg.empty()) { + lut_costs.clear(); + for (auto &tok : split_tokens(luts_arg, ",")) { + auto parts = split_tokens(tok, ":"); + if (GetSize(parts) == 0 && !lut_costs.empty()) + lut_costs.push_back(lut_costs.back()); + else if (GetSize(parts) == 1) + lut_costs.push_back(atoi(parts.at(0).c_str())); + else if (GetSize(parts) == 2) + while (GetSize(lut_costs) < atoi(parts.at(0).c_str())) + lut_costs.push_back(atoi(parts.at(1).c_str())); + else + log_cmd_error("Invalid -luts syntax.\n"); + } + } + + // ABC expects a box file for XAIG + if (box_file.empty()) + box_file = "+/dummy.box"; + + rewrite_filename(box_file); + if (!box_file.empty() && !is_absolute_path(box_file) && box_file[0] != '+') + box_file = std::string(pwd) + "/" + box_file; + + if (tempdir_name.empty()) + log_cmd_error("abc9_exe '-cwd' option is mandatory.\n"); + + + abc9_module(design, script_file, exe_file, lut_costs, dff_mode, + delay_target, lutin_shared, fast_mode, show_tempdir, + box_file, lut_file, wire_delay, tempdir_name); + } +} Abc9ExePass; + +PRIVATE_NAMESPACE_END diff --git a/passes/techmap/abc9_ops.cc b/passes/techmap/abc9_ops.cc new file mode 100644 index 000000000..9ad29a8f6 --- /dev/null +++ b/passes/techmap/abc9_ops.cc @@ -0,0 +1,825 @@ +/* + * yosys -- Yosys Open SYnthesis Suite + * + * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at> + * 2019 Eddie Hung <eddie@fpgeh.com> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#include "kernel/register.h" +#include "kernel/sigtools.h" +#include "kernel/utils.h" +#include "kernel/celltypes.h" + +USING_YOSYS_NAMESPACE +PRIVATE_NAMESPACE_BEGIN + +int map_autoidx; + +inline std::string remap_name(RTLIL::IdString abc9_name) +{ + return stringf("$abc$%d$%s", map_autoidx, abc9_name.c_str()+1); +} + +void mark_scc(RTLIL::Module *module) +{ + // For every unique SCC found, (arbitrarily) find the first + // cell in the component, and convert all wires driven by + // its output ports into a new PO, and drive its previous + // sinks with a new PI + pool<RTLIL::Const> ids_seen; + for (auto cell : module->cells()) { + auto it = cell->attributes.find(ID(abc9_scc_id)); + if (it == cell->attributes.end()) + continue; + auto id = it->second; + auto r = ids_seen.insert(id); + cell->attributes.erase(it); + if (!r.second) + continue; + for (auto &c : cell->connections_) { + if (c.second.is_fully_const()) continue; + if (cell->output(c.first)) { + SigBit b = c.second.as_bit(); + Wire *w = b.wire; + w->set_bool_attribute(ID::keep); + w->attributes[ID(abc9_scc_id)] = id.as_int(); + } + } + } + + module->fixup_ports(); +} + +void prep_dff(RTLIL::Module *module) +{ + auto design = module->design; + log_assert(design); + + SigMap assign_map(module); + + typedef SigSpec clkdomain_t; + dict<clkdomain_t, int> clk_to_mergeability; + + for (auto cell : module->cells()) { + if (cell->type != "$__ABC9_FF_") + continue; + + Wire *abc9_clock_wire = module->wire(stringf("%s.clock", cell->name.c_str())); + if (abc9_clock_wire == NULL) + log_error("'%s.clock' is not a wire present in module '%s'.\n", cell->name.c_str(), log_id(module)); + SigSpec abc9_clock = assign_map(abc9_clock_wire); + + clkdomain_t key(abc9_clock); + + auto r = clk_to_mergeability.insert(std::make_pair(abc9_clock, clk_to_mergeability.size() + 1)); + auto r2 YS_ATTRIBUTE(unused) = cell->attributes.insert(std::make_pair(ID(abc9_mergeability), r.first->second)); + log_assert(r2.second); + + Wire *abc9_init_wire = module->wire(stringf("%s.init", cell->name.c_str())); + if (abc9_init_wire == NULL) + log_error("'%s.init' is not a wire present in module '%s'.\n", cell->name.c_str(), log_id(module)); + log_assert(GetSize(abc9_init_wire) == 1); + SigSpec abc9_init = assign_map(abc9_init_wire); + if (!abc9_init.is_fully_const()) + log_error("'%s.init' is not a constant wire present in module '%s'.\n", cell->name.c_str(), log_id(module)); + if (abc9_init == State::S1) + log_error("'%s.init' in module '%s' has value 1'b1 which is not supported by 'abc9 -dff'.\n", cell->name.c_str(), log_id(module)); + r2 = cell->attributes.insert(std::make_pair(ID(abc9_init), abc9_init.as_const())); + log_assert(r2.second); + } + + RTLIL::Module *holes_module = design->module(stringf("%s$holes", module->name.c_str())); + if (holes_module) { + SigMap sigmap(holes_module); + + dict<SigSpec, SigSpec> replace; + for (auto cell : holes_module->cells().to_vector()) { + if (!cell->type.in("$_DFF_N_", "$_DFF_NN0_", "$_DFF_NN1_", "$_DFF_NP0_", "$_DFF_NP1_", + "$_DFF_P_", "$_DFF_PN0_", "$_DFF_PN1", "$_DFF_PP0_", "$_DFF_PP1_")) + continue; + SigBit D = cell->getPort("\\D"); + SigBit Q = cell->getPort("\\Q"); + // Emulate async control embedded inside $_DFF_* cell with mux in front of D + if (cell->type.in("$_DFF_NN0_", "$_DFF_PN0_")) + D = holes_module->MuxGate(NEW_ID, State::S0, D, cell->getPort("\\R")); + else if (cell->type.in("$_DFF_NN1_", "$_DFF_PN1_")) + D = holes_module->MuxGate(NEW_ID, State::S1, D, cell->getPort("\\R")); + else if (cell->type.in("$_DFF_NP0_", "$_DFF_PP0_")) + D = holes_module->MuxGate(NEW_ID, D, State::S0, cell->getPort("\\R")); + else if (cell->type.in("$_DFF_NP1_", "$_DFF_PP1_")) + D = holes_module->MuxGate(NEW_ID, D, State::S1, cell->getPort("\\R")); + // Remove the $_DFF_* cell from what needs to be a combinatorial box + holes_module->remove(cell); + Wire *port; + if (GetSize(Q.wire) == 1) + port = holes_module->wire(stringf("$abc%s", Q.wire->name.c_str())); + else + port = holes_module->wire(stringf("$abc%s[%d]", Q.wire->name.c_str(), Q.offset)); + log_assert(port); + // Prepare to replace "assign <port> = $_DFF_*.Q;" with "assign <port> = $_DFF_*.D;" + // in order to extract just the combinatorial control logic that feeds the box + // (i.e. clock enable, synchronous reset, etc.) + replace.insert(std::make_pair(Q,D)); + // Since `flatten` above would have created wires named "<cell>.Q", + // extract the pre-techmap cell name + auto pos = Q.wire->name.str().rfind("."); + log_assert(pos != std::string::npos); + IdString driver = Q.wire->name.substr(0, pos); + // And drive the signal that was previously driven by "DFF.Q" (typically + // used to implement clock-enable functionality) with the "<cell>.$abc9_currQ" + // wire (which itself is driven an by input port) we inserted above + Wire *currQ = holes_module->wire(stringf("%s.abc9_ff.Q", driver.c_str())); + log_assert(currQ); + holes_module->connect(Q, currQ); + } + + for (auto &conn : holes_module->connections_) + conn.second = replace.at(sigmap(conn.second), conn.second); + } +} + +void prep_xaiger(RTLIL::Module *module, bool dff) +{ + auto design = module->design; + log_assert(design); + + SigMap sigmap(module); + + dict<SigBit, pool<IdString>> bit_drivers, bit_users; + TopoSort<IdString, RTLIL::sort_by_id_str> toposort; + dict<IdString, std::vector<IdString>> box_ports; + + for (auto cell : module->cells()) { + if (cell->type == "$__ABC9_FF_") + continue; + if (cell->has_keep_attr()) + continue; + + auto inst_module = module->design->module(cell->type); + bool abc9_box = inst_module && inst_module->attributes.count("\\abc9_box_id"); + bool abc9_flop = false; + if (abc9_box) { + abc9_flop = inst_module->get_bool_attribute("\\abc9_flop"); + if (abc9_flop && !dff) + continue; + + auto r = box_ports.insert(cell->type); + if (r.second) { + // Make carry in the last PI, and carry out the last PO + // since ABC requires it this way + IdString carry_in, carry_out; + for (const auto &port_name : inst_module->ports) { + auto w = inst_module->wire(port_name); + log_assert(w); + if (w->get_bool_attribute("\\abc9_carry")) { + if (w->port_input) { + if (carry_in != IdString()) + log_error("Module '%s' contains more than one 'abc9_carry' input port.\n", log_id(inst_module)); + carry_in = port_name; + } + if (w->port_output) { + if (carry_out != IdString()) + log_error("Module '%s' contains more than one 'abc9_carry' output port.\n", log_id(inst_module)); + carry_out = port_name; + } + } + else + r.first->second.push_back(port_name); + } + + if (carry_in != IdString() && carry_out == IdString()) + log_error("Module '%s' contains an 'abc9_carry' input port but no output port.\n", log_id(inst_module)); + if (carry_in == IdString() && carry_out != IdString()) + log_error("Module '%s' contains an 'abc9_carry' output port but no input port.\n", log_id(inst_module)); + if (carry_in != IdString()) { + r.first->second.push_back(carry_in); + r.first->second.push_back(carry_out); + } + } + } + else if (!yosys_celltypes.cell_known(cell->type)) + continue; + + // TODO: Speed up toposort -- we care about box ordering only + for (auto conn : cell->connections()) { + if (cell->input(conn.first)) + for (auto bit : sigmap(conn.second)) + bit_users[bit].insert(cell->name); + + if (cell->output(conn.first) && !abc9_flop) + for (auto bit : sigmap(conn.second)) + bit_drivers[bit].insert(cell->name); + } + toposort.node(cell->name); + } + + if (box_ports.empty()) + return; + + for (auto &it : bit_users) + if (bit_drivers.count(it.first)) + for (auto driver_cell : bit_drivers.at(it.first)) + for (auto user_cell : it.second) + toposort.edge(driver_cell, user_cell); + + if (ys_debug(1)) + toposort.analyze_loops = true; + + bool no_loops YS_ATTRIBUTE(unused) = toposort.sort(); + + if (ys_debug(1)) { + unsigned i = 0; + for (auto &it : toposort.loops) { + log(" loop %d\n", i++); + for (auto cell_name : it) { + auto cell = module->cell(cell_name); + log_assert(cell); + log("\t%s (%s @ %s)\n", log_id(cell), log_id(cell->type), cell->get_src_attribute().c_str()); + } + } + } + + log_assert(no_loops); + + RTLIL::Module *holes_module = design->addModule(stringf("%s$holes", module->name.c_str())); + log_assert(holes_module); + holes_module->set_bool_attribute("\\abc9_holes"); + + dict<IdString, Cell*> cell_cache; + + int port_id = 1, box_count = 0; + for (auto cell_name : toposort.sorted) { + RTLIL::Cell *cell = module->cell(cell_name); + log_assert(cell); + + RTLIL::Module* box_module = design->module(cell->type); + if (!box_module || !box_module->attributes.count("\\abc9_box_id")) + continue; + + cell->attributes["\\abc9_box_seq"] = box_count++; + + IdString derived_name = box_module->derive(design, cell->parameters); + box_module = design->module(derived_name); + + auto r = cell_cache.insert(derived_name); + auto &holes_cell = r.first->second; + if (r.second) { + if (box_module->has_processes()) + Pass::call_on_module(design, box_module, "proc"); + + if (box_module->get_bool_attribute("\\whitebox")) { + holes_cell = holes_module->addCell(cell->name, derived_name); + + int box_inputs = 0; + for (auto port_name : box_ports.at(cell->type)) { + RTLIL::Wire *w = box_module->wire(port_name); + log_assert(w); + log_assert(!w->port_input || !w->port_output); + auto &conn = holes_cell->connections_[port_name]; + if (w->port_input) { + for (int i = 0; i < GetSize(w); i++) { + box_inputs++; + RTLIL::Wire *holes_wire = holes_module->wire(stringf("\\i%d", box_inputs)); + if (!holes_wire) { + holes_wire = holes_module->addWire(stringf("\\i%d", box_inputs)); + holes_wire->port_input = true; + holes_wire->port_id = port_id++; + holes_module->ports.push_back(holes_wire->name); + } + conn.append(holes_wire); + } + } + else if (w->port_output) + conn = holes_module->addWire(stringf("%s.%s", derived_name.c_str(), log_id(port_name)), GetSize(w)); + } + + // For flops only, create an extra 1-bit input that drives a new wire + // called "<cell>.abc9_ff.Q" that is used below + if (box_module->get_bool_attribute("\\abc9_flop")) { + box_inputs++; + Wire *holes_wire = holes_module->wire(stringf("\\i%d", box_inputs)); + if (!holes_wire) { + holes_wire = holes_module->addWire(stringf("\\i%d", box_inputs)); + holes_wire->port_input = true; + holes_wire->port_id = port_id++; + holes_module->ports.push_back(holes_wire->name); + } + Wire *Q = holes_module->addWire(stringf("%s.abc9_ff.Q", cell->name.c_str())); + holes_module->connect(Q, holes_wire); + } + } + else // box_module is a blackbox + log_assert(holes_cell == nullptr); + } + + for (auto port_name : box_ports.at(cell->type)) { + RTLIL::Wire *w = box_module->wire(port_name); + log_assert(w); + if (!w->port_output) + continue; + Wire *holes_wire = holes_module->addWire(stringf("$abc%s.%s", cell->name.c_str(), log_id(port_name)), GetSize(w)); + holes_wire->port_output = true; + holes_wire->port_id = port_id++; + holes_module->ports.push_back(holes_wire->name); + if (holes_cell) // whitebox + holes_module->connect(holes_wire, holes_cell->getPort(port_name)); + else // blackbox + holes_module->connect(holes_wire, Const(State::S0, GetSize(w))); + } + } +} + +void reintegrate(RTLIL::Module *module) +{ + auto design = module->design; + log_assert(design); + + map_autoidx = autoidx++; + + RTLIL::Module *mapped_mod = design->module(stringf("%s$abc9", module->name.c_str())); + if (mapped_mod == NULL) + log_error("ABC output file does not contain a module `%s$abc'.\n", log_id(module)); + + for (auto w : mapped_mod->wires()) + module->addWire(remap_name(w->name), GetSize(w)); + + dict<IdString,std::vector<IdString>> box_ports; + + for (auto m : design->modules()) { + if (!m->attributes.count(ID(abc9_box_id))) + continue; + + auto r = box_ports.insert(m->name); + if (r.second) { + // Make carry in the last PI, and carry out the last PO + // since ABC requires it this way + IdString carry_in, carry_out; + for (const auto &port_name : m->ports) { + auto w = m->wire(port_name); + log_assert(w); + if (w->get_bool_attribute("\\abc9_carry")) { + if (w->port_input) { + if (carry_in != IdString()) + log_error("Module '%s' contains more than one 'abc9_carry' input port.\n", log_id(m)); + carry_in = port_name; + } + if (w->port_output) { + if (carry_out != IdString()) + log_error("Module '%s' contains more than one 'abc9_carry' output port.\n", log_id(m)); + carry_out = port_name; + } + } + else + r.first->second.push_back(port_name); + } + + if (carry_in != IdString() && carry_out == IdString()) + log_error("Module '%s' contains an 'abc9_carry' input port but no output port.\n", log_id(m)); + if (carry_in == IdString() && carry_out != IdString()) + log_error("Module '%s' contains an 'abc9_carry' output port but no input port.\n", log_id(m)); + if (carry_in != IdString()) { + r.first->second.push_back(carry_in); + r.first->second.push_back(carry_out); + } + } + } + + std::vector<Cell*> boxes; + for (auto cell : module->cells().to_vector()) { + if (cell->has_keep_attr()) + continue; + if (cell->type.in(ID($_AND_), ID($_NOT_), ID($__ABC9_FF_))) + module->remove(cell); + else if (cell->attributes.erase("\\abc9_box_seq")) + boxes.emplace_back(cell); + } + + dict<SigBit, pool<IdString>> bit_drivers, bit_users; + TopoSort<IdString, RTLIL::sort_by_id_str> toposort; + dict<RTLIL::Cell*,RTLIL::Cell*> not2drivers; + dict<SigBit, std::vector<RTLIL::Cell*>> bit2sinks; + + std::map<IdString, int> cell_stats; + for (auto mapped_cell : mapped_mod->cells()) + { + // TODO: Speed up toposort -- we care about NOT ordering only + toposort.node(mapped_cell->name); + + if (mapped_cell->type == ID($_NOT_)) { + RTLIL::SigBit a_bit = mapped_cell->getPort(ID::A); + RTLIL::SigBit y_bit = mapped_cell->getPort(ID::Y); + bit_users[a_bit].insert(mapped_cell->name); + // Ignore inouts for topo ordering + if (y_bit.wire && !(y_bit.wire->port_input && y_bit.wire->port_output)) + bit_drivers[y_bit].insert(mapped_cell->name); + + if (!a_bit.wire) { + mapped_cell->setPort(ID::Y, module->addWire(NEW_ID)); + RTLIL::Wire *wire = module->wire(remap_name(y_bit.wire->name)); + log_assert(wire); + module->connect(RTLIL::SigBit(wire, y_bit.offset), State::S1); + } + else { + RTLIL::Cell* driver_lut = nullptr; + // ABC can return NOT gates that drive POs + if (!a_bit.wire->port_input) { + // If it's not a NOT gate that that comes from a PI directly, + // find the driver LUT and clone that to guarantee that we won't + // increase the max logic depth + // (TODO: Optimise by not cloning unless will increase depth) + RTLIL::IdString driver_name; + if (GetSize(a_bit.wire) == 1) + driver_name = stringf("$lut%s", a_bit.wire->name.c_str()); + else + driver_name = stringf("$lut%s[%d]", a_bit.wire->name.c_str(), a_bit.offset); + driver_lut = mapped_mod->cell(driver_name); + } + + if (!driver_lut) { + // If a driver couldn't be found (could be from PI or box CI) + // then implement using a LUT + RTLIL::Cell *cell = module->addLut(remap_name(stringf("$lut%s", mapped_cell->name.c_str())), + RTLIL::SigBit(module->wires_.at(remap_name(a_bit.wire->name)), a_bit.offset), + RTLIL::SigBit(module->wires_.at(remap_name(y_bit.wire->name)), y_bit.offset), + RTLIL::Const::from_string("01")); + bit2sinks[cell->getPort(ID::A)].push_back(cell); + cell_stats[ID($lut)]++; + } + else + not2drivers[mapped_cell] = driver_lut; + } + continue; + } + + if (mapped_cell->type.in(ID($lut), ID($__ABC9_FF_))) { + // Convert buffer into direct connection + if (mapped_cell->type == ID($lut) && + GetSize(mapped_cell->getPort(ID::A)) == 1 && + mapped_cell->getParam(ID(LUT)) == RTLIL::Const::from_string("01")) { + SigSpec my_a = module->wires_.at(remap_name(mapped_cell->getPort(ID::A).as_wire()->name)); + SigSpec my_y = module->wires_.at(remap_name(mapped_cell->getPort(ID::Y).as_wire()->name)); + module->connect(my_y, my_a); + log_abort(); + continue; + } + RTLIL::Cell *cell = module->addCell(remap_name(mapped_cell->name), mapped_cell->type); + cell->parameters = mapped_cell->parameters; + cell->attributes = mapped_cell->attributes; + + for (auto &mapped_conn : mapped_cell->connections()) { + RTLIL::SigSpec newsig; + for (auto c : mapped_conn.second.chunks()) { + if (c.width == 0) + continue; + //log_assert(c.width == 1); + if (c.wire) + c.wire = module->wires_.at(remap_name(c.wire->name)); + newsig.append(c); + } + cell->setPort(mapped_conn.first, newsig); + + if (cell->input(mapped_conn.first)) { + for (auto i : newsig) + bit2sinks[i].push_back(cell); + for (auto i : mapped_conn.second) + bit_users[i].insert(mapped_cell->name); + } + if (cell->output(mapped_conn.first)) + for (auto i : mapped_conn.second) + // Ignore inouts for topo ordering + if (i.wire && !(i.wire->port_input && i.wire->port_output)) + bit_drivers[i].insert(mapped_cell->name); + } + } + else { + RTLIL::Cell *existing_cell = module->cell(mapped_cell->name); + log_assert(existing_cell); + + RTLIL::Module* box_module = design->module(existing_cell->type); + auto it = box_module->attributes.find(ID(abc9_box_id)); + log_assert(it != box_module->attributes.end()); + log_assert(mapped_cell->type == stringf("$__boxid%d", it->second.as_int())); + mapped_cell->type = existing_cell->type; + + RTLIL::Cell *cell = module->addCell(remap_name(mapped_cell->name), mapped_cell->type); + cell->parameters = existing_cell->parameters; + cell->attributes = existing_cell->attributes; + module->swap_names(cell, existing_cell); + + auto jt = mapped_cell->connections_.find("\\i"); + log_assert(jt != mapped_cell->connections_.end()); + SigSpec inputs = std::move(jt->second); + mapped_cell->connections_.erase(jt); + jt = mapped_cell->connections_.find("\\o"); + log_assert(jt != mapped_cell->connections_.end()); + SigSpec outputs = std::move(jt->second); + mapped_cell->connections_.erase(jt); + + auto abc9_flop = box_module->attributes.count("\\abc9_flop"); + if (!abc9_flop) { + for (const auto &i : inputs) + bit_users[i].insert(mapped_cell->name); + for (const auto &i : outputs) + // Ignore inouts for topo ordering + if (i.wire && !(i.wire->port_input && i.wire->port_output)) + bit_drivers[i].insert(mapped_cell->name); + } + + int input_count = 0, output_count = 0; + for (const auto &port_name : box_ports.at(cell->type)) { + RTLIL::Wire *w = box_module->wire(port_name); + log_assert(w); + + SigSpec sig; + if (w->port_input) { + sig = inputs.extract(input_count, GetSize(w)); + input_count += GetSize(w); + } + if (w->port_output) { + sig = outputs.extract(output_count, GetSize(w)); + output_count += GetSize(w); + } + + SigSpec newsig; + for (auto c : sig.chunks()) { + if (c.width == 0) + continue; + //log_assert(c.width == 1); + if (c.wire) + c.wire = module->wires_.at(remap_name(c.wire->name)); + newsig.append(c); + } + cell->setPort(port_name, newsig); + + if (w->port_input && !abc9_flop) + for (const auto &i : newsig) + bit2sinks[i].push_back(cell); + } + } + + cell_stats[mapped_cell->type]++; + } + + for (auto cell : boxes) + module->remove(cell); + + // Copy connections (and rename) from mapped_mod to module + for (auto conn : mapped_mod->connections()) { + if (!conn.first.is_fully_const()) { + auto chunks = conn.first.chunks(); + for (auto &c : chunks) + c.wire = module->wires_.at(remap_name(c.wire->name)); + conn.first = std::move(chunks); + } + if (!conn.second.is_fully_const()) { + auto chunks = conn.second.chunks(); + for (auto &c : chunks) + if (c.wire) + c.wire = module->wires_.at(remap_name(c.wire->name)); + conn.second = std::move(chunks); + } + module->connect(conn); + } + + for (auto &it : cell_stats) + log("ABC RESULTS: %15s cells: %8d\n", it.first.c_str(), it.second); + int in_wires = 0, out_wires = 0; + + // Stitch in mapped_mod's inputs/outputs into module + for (auto port : mapped_mod->ports) { + RTLIL::Wire *mapped_wire = mapped_mod->wire(port); + RTLIL::Wire *wire = module->wire(port); + log_assert(wire); + if (wire->attributes.erase(ID(abc9_scc_id))) { + auto r YS_ATTRIBUTE(unused) = wire->attributes.erase(ID::keep); + log_assert(r); + } + RTLIL::Wire *remap_wire = module->wire(remap_name(port)); + RTLIL::SigSpec signal(wire, 0, GetSize(remap_wire)); + log_assert(GetSize(signal) >= GetSize(remap_wire)); + + RTLIL::SigSig conn; + if (mapped_wire->port_output) { + conn.first = signal; + conn.second = remap_wire; + out_wires++; + module->connect(conn); + } + else if (mapped_wire->port_input) { + conn.first = remap_wire; + conn.second = signal; + in_wires++; + module->connect(conn); + } + } + + // ABC9 will return $_NOT_ gates in its mapping (since they are + // treated as being "free"), in particular driving primary + // outputs (real primary outputs, or cells treated as blackboxes) + // or driving box inputs. + // Instead of just mapping those $_NOT_ gates into 2-input $lut-s + // at an area and delay cost, see if it is possible to push + // this $_NOT_ into the driving LUT, or into all sink LUTs. + // When this is not possible, (i.e. this signal drives two primary + // outputs, only one of which is complemented) and when the driver + // is a LUT, then clone the LUT so that it can be inverted without + // increasing depth/delay. + for (auto &it : bit_users) + if (bit_drivers.count(it.first)) + for (auto driver_cell : bit_drivers.at(it.first)) + for (auto user_cell : it.second) + toposort.edge(driver_cell, user_cell); + bool no_loops YS_ATTRIBUTE(unused) = toposort.sort(); + log_assert(no_loops); + + for (auto ii = toposort.sorted.rbegin(); ii != toposort.sorted.rend(); ii++) { + RTLIL::Cell *not_cell = mapped_mod->cell(*ii); + log_assert(not_cell); + if (not_cell->type != ID($_NOT_)) + continue; + auto it = not2drivers.find(not_cell); + if (it == not2drivers.end()) + continue; + RTLIL::Cell *driver_lut = it->second; + RTLIL::SigBit a_bit = not_cell->getPort(ID::A); + RTLIL::SigBit y_bit = not_cell->getPort(ID::Y); + RTLIL::Const driver_mask; + + a_bit.wire = module->wires_.at(remap_name(a_bit.wire->name)); + y_bit.wire = module->wires_.at(remap_name(y_bit.wire->name)); + + auto jt = bit2sinks.find(a_bit); + if (jt == bit2sinks.end()) + goto clone_lut; + + for (auto sink_cell : jt->second) + if (sink_cell->type != ID($lut)) + goto clone_lut; + + // Push downstream LUTs past inverter + for (auto sink_cell : jt->second) { + SigSpec A = sink_cell->getPort(ID::A); + RTLIL::Const mask = sink_cell->getParam(ID(LUT)); + int index = 0; + for (; index < GetSize(A); index++) + if (A[index] == a_bit) + break; + log_assert(index < GetSize(A)); + int i = 0; + while (i < GetSize(mask)) { + for (int j = 0; j < (1 << index); j++) + std::swap(mask[i+j], mask[i+j+(1 << index)]); + i += 1 << (index+1); + } + A[index] = y_bit; + sink_cell->setPort(ID::A, A); + sink_cell->setParam(ID(LUT), mask); + } + + // Since we have rewritten all sinks (which we know + // to be only LUTs) to be after the inverter, we can + // go ahead and clone the LUT with the expectation + // that the original driving LUT will become dangling + // and get cleaned away +clone_lut: + driver_mask = driver_lut->getParam(ID(LUT)); + for (auto &b : driver_mask.bits) { + if (b == RTLIL::State::S0) b = RTLIL::State::S1; + else if (b == RTLIL::State::S1) b = RTLIL::State::S0; + } + auto cell = module->addLut(NEW_ID, + driver_lut->getPort(ID::A), + y_bit, + driver_mask); + for (auto &bit : cell->connections_.at(ID::A)) { + bit.wire = module->wires_.at(remap_name(bit.wire->name)); + bit2sinks[bit].push_back(cell); + } + } + + //log("ABC RESULTS: internal signals: %8d\n", int(signal_list.size()) - in_wires - out_wires); + log("ABC RESULTS: input signals: %8d\n", in_wires); + log("ABC RESULTS: output signals: %8d\n", out_wires); + + design->remove(mapped_mod); +} + +struct Abc9OpsPass : public Pass { + Abc9OpsPass() : Pass("abc9_ops", "helper functions for ABC9") { } + void help() YS_OVERRIDE + { + // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| + log("\n"); + log(" abc9_ops [options] [selection]\n"); + log("\n"); + log("This pass contains a set of supporting operations for use during ABC technology\n"); + log("mapping, and is expected to be called in conjunction with other operations from\n"); + log("the `abc9' script pass. Only fully-selected modules are supported.\n"); + log("\n"); + log(" -mark_scc\n"); + log(" for an arbitrarily chosen cell in each unique SCC of each selected module\n"); + log(" (tagged with an (* abc9_scc_id = <int> *) attribute), temporarily mark all\n"); + log(" wires driven by this cell's outputs with a (* keep *) attribute in order\n"); + log(" to break the SCC. this temporary attribute will be removed on -reintegrate.\n"); + log("\n"); + log(" -prep_xaiger\n"); + log(" prepare the design for XAIGER output. this includes computing the\n"); + log(" topological ordering of ABC9 boxes, as well as preparing the\n"); + log(" '<module-name>$holes' module that contains the logic behaviour of ABC9\n"); + log(" whiteboxes.\n"); + log("\n"); + log(" -dff\n"); + log(" consider flop cells (those instantiating modules marked with (* abc9_flop *)\n"); + log(" during -prep_xaiger.\n"); + log("\n"); + log(" -prep_dff\n"); + log(" compute the clock domain and initial value of each flop in the design.\n"); + log(" process the '$holes' module to support clock-enable functionality.\n"); + log("\n"); + log(" -reintegrate\n"); + log(" for each selected module, re-intergrate the module '<module-name>$abc9'\n"); + log(" by first recovering ABC9 boxes, and then stitching in the remaining primary\n"); + log(" inputs and outputs.\n"); + log("\n"); + } + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE + { + log_header(design, "Executing ABC9_OPS pass (helper functions for ABC9).\n"); + + bool mark_scc_mode = false; + bool prep_dff_mode = false; + bool prep_xaiger_mode = false; + bool reintegrate_mode = false; + bool dff_mode = false; + + size_t argidx; + for (argidx = 1; argidx < args.size(); argidx++) { + std::string arg = args[argidx]; + if (arg == "-mark_scc") { + mark_scc_mode = true; + continue; + } + if (arg == "-prep_dff") { + prep_dff_mode = true; + continue; + } + if (arg == "-prep_xaiger") { + prep_xaiger_mode = true; + continue; + } + if (arg == "-reintegrate") { + reintegrate_mode = true; + continue; + } + if (arg == "-dff") { + dff_mode = true; + continue; + } + break; + } + extra_args(args, argidx, design); + + if (!(mark_scc_mode || prep_dff_mode || reintegrate_mode)) + log_cmd_error("At least one of -mark_scc, -prep_{xaiger,dff}, -reintegrate must be specified.\n"); + + if (dff_mode && !prep_xaiger_mode) + log_cmd_error("'-dff' option is only relevant for -prep_xaiger.\n"); + + for (auto mod : design->selected_modules()) { + if (mod->get_bool_attribute("\\abc9_holes")) + continue; + + if (mod->processes.size() > 0) { + log("Skipping module %s as it contains processes.\n", log_id(mod)); + continue; + } + + if (!design->selected_whole_module(mod)) + log_error("Can't handle partially selected module %s!\n", log_id(mod)); + + if (mark_scc_mode) + mark_scc(mod); + if (prep_dff_mode) + prep_dff(mod); + if (prep_xaiger_mode) + prep_xaiger(mod, dff_mode); + if (reintegrate_mode) + reintegrate(mod); + } + } +} Abc9OpsPass; + +PRIVATE_NAMESPACE_END diff --git a/passes/techmap/aigmap.cc b/passes/techmap/aigmap.cc index b9ac7aded..2ecb2f35a 100644 --- a/passes/techmap/aigmap.cc +++ b/passes/techmap/aigmap.cc @@ -25,8 +25,9 @@ PRIVATE_NAMESPACE_BEGIN struct AigmapPass : public Pass { AigmapPass() : Pass("aigmap", "map logic to and-inverter-graph circuit") { } - virtual void help() + void help() YS_OVERRIDE { + // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); log(" aigmap [options] [selection]\n"); log("\n"); @@ -36,10 +37,15 @@ struct AigmapPass : public Pass { log(" -nand\n"); log(" Enable creation of $_NAND_ cells\n"); log("\n"); + log(" -select\n"); + log(" Overwrite replaced cells in the current selection with new $_AND_,\n"); + log(" $_NOT_, and $_NAND_, cells\n"); + + log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { - bool nand_mode = false; + bool nand_mode = false, select_mode = false; log_header(design, "Executing AIGMAP pass (map logic to AIG).\n"); @@ -50,6 +56,10 @@ struct AigmapPass : public Pass { nand_mode = true; continue; } + if (args[argidx] == "-select") { + select_mode = true; + continue; + } break; } extra_args(args, argidx, design); @@ -62,19 +72,22 @@ struct AigmapPass : public Pass { dict<IdString, int> stat_not_replaced; int orig_num_cells = GetSize(module->cells()); + pool<IdString> new_sel; for (auto cell : module->selected_cells()) { Aig aig(cell); - if (cell->type == "$_AND_" || cell->type == "$_NOT_") + if (cell->type.in(ID($_AND_), ID($_NOT_))) aig.name.clear(); - if (nand_mode && cell->type == "$_NAND_") + if (nand_mode && cell->type == ID($_NAND_)) aig.name.clear(); if (aig.name.empty()) { not_replaced_count++; stat_not_replaced[cell->type]++; + if (select_mode) + new_sel.insert(cell->name); continue; } @@ -95,19 +108,33 @@ struct AigmapPass : public Pass { SigBit A = sigs.at(node.left_parent); SigBit B = sigs.at(node.right_parent); if (nand_mode && node.inverter) { - bit = module->NandGate(NEW_ID, A, B); + bit = module->addWire(NEW_ID); + auto gate = module->addNandGate(NEW_ID, A, B, bit); + if (select_mode) + new_sel.insert(gate->name); + goto skip_inverter; } else { pair<int, int> key(node.left_parent, node.right_parent); if (and_cache.count(key)) bit = and_cache.at(key); - else - bit = module->AndGate(NEW_ID, A, B); + else { + bit = module->addWire(NEW_ID); + auto gate = module->addAndGate(NEW_ID, A, B, bit); + if (select_mode) + new_sel.insert(gate->name); + } } } - if (node.inverter) - bit = module->NotGate(NEW_ID, bit); + if (node.inverter) { + SigBit new_bit = module->addWire(NEW_ID); + auto gate = module->addNotGate(NEW_ID, bit, new_bit); + bit = new_bit; + if (select_mode) + new_sel.insert(gate->name); + + } skip_inverter: for (auto &op : node.outports) @@ -142,6 +169,13 @@ struct AigmapPass : public Pass { for (auto cell : replaced_cells) module->remove(cell); + + if (select_mode) { + log_assert(!design->selection_stack.empty()); + RTLIL::Selection& sel = design->selection_stack.back(); + sel.selected_members[module->name] = std::move(new_sel); + } + } } } AigmapPass; diff --git a/passes/techmap/alumacc.cc b/passes/techmap/alumacc.cc index 95be7ab3b..034731b87 100644 --- a/passes/techmap/alumacc.cc +++ b/passes/techmap/alumacc.cc @@ -48,20 +48,31 @@ struct AlumaccWorker RTLIL::SigSpec cached_cf, cached_of, cached_sf; RTLIL::SigSpec get_lt() { - if (GetSize(cached_lt) == 0) - cached_lt = is_signed ? alu_cell->module->Xor(NEW_ID, get_of(), get_sf()) : get_cf(); + if (GetSize(cached_lt) == 0) { + if (is_signed) { + get_of(); + get_sf(); + cached_lt = alu_cell->module->Xor(NEW_ID, cached_of, cached_sf); + } + else + cached_lt = get_cf(); + } return cached_lt; } RTLIL::SigSpec get_gt() { - if (GetSize(cached_gt) == 0) - cached_gt = alu_cell->module->Not(NEW_ID, alu_cell->module->Or(NEW_ID, get_lt(), get_eq()), false, alu_cell->get_src_attribute()); + if (GetSize(cached_gt) == 0) { + get_lt(); + get_eq(); + SigSpec Or = alu_cell->module->Or(NEW_ID, cached_lt, cached_eq); + cached_gt = alu_cell->module->Not(NEW_ID, Or, false, alu_cell->get_src_attribute()); + } return cached_gt; } RTLIL::SigSpec get_eq() { if (GetSize(cached_eq) == 0) - cached_eq = alu_cell->module->ReduceAnd(NEW_ID, alu_cell->getPort("\\X"), false, alu_cell->get_src_attribute()); + cached_eq = alu_cell->module->ReduceAnd(NEW_ID, alu_cell->getPort(ID(X)), false, alu_cell->get_src_attribute()); return cached_eq; } @@ -73,7 +84,7 @@ struct AlumaccWorker RTLIL::SigSpec get_cf() { if (GetSize(cached_cf) == 0) { - cached_cf = alu_cell->getPort("\\CO"); + cached_cf = alu_cell->getPort(ID(CO)); log_assert(GetSize(cached_cf) >= 1); cached_cf = alu_cell->module->Not(NEW_ID, cached_cf[GetSize(cached_cf)-1], false, alu_cell->get_src_attribute()); } @@ -82,7 +93,7 @@ struct AlumaccWorker RTLIL::SigSpec get_of() { if (GetSize(cached_of) == 0) { - cached_of = {alu_cell->getPort("\\CO"), alu_cell->getPort("\\CI")}; + cached_of = {alu_cell->getPort(ID(CO)), alu_cell->getPort(ID(CI))}; log_assert(GetSize(cached_of) >= 2); cached_of = alu_cell->module->Xor(NEW_ID, cached_of[GetSize(cached_of)-1], cached_of[GetSize(cached_of)-2]); } @@ -91,7 +102,7 @@ struct AlumaccWorker RTLIL::SigSpec get_sf() { if (GetSize(cached_sf) == 0) { - cached_sf = alu_cell->getPort("\\Y"); + cached_sf = alu_cell->getPort(ID::Y); cached_sf = cached_sf[GetSize(cached_sf)-1]; } return cached_sf; @@ -125,7 +136,7 @@ struct AlumaccWorker { for (auto cell : module->selected_cells()) { - if (!cell->type.in("$pos", "$neg", "$add", "$sub", "$mul")) + if (!cell->type.in(ID($pos), ID($neg), ID($add), ID($sub), ID($mul))) continue; log(" creating $macc model for %s (%s).\n", log_id(cell), log_id(cell->type)); @@ -134,38 +145,38 @@ struct AlumaccWorker Macc::port_t new_port; n->cell = cell; - n->y = sigmap(cell->getPort("\\Y")); + n->y = sigmap(cell->getPort(ID::Y)); n->users = 0; for (auto bit : n->y) n->users = max(n->users, bit_users.at(bit) - 1); - if (cell->type.in("$pos", "$neg")) + if (cell->type.in(ID($pos), ID($neg))) { - new_port.in_a = sigmap(cell->getPort("\\A")); - new_port.is_signed = cell->getParam("\\A_SIGNED").as_bool(); - new_port.do_subtract = cell->type == "$neg"; + new_port.in_a = sigmap(cell->getPort(ID::A)); + new_port.is_signed = cell->getParam(ID(A_SIGNED)).as_bool(); + new_port.do_subtract = cell->type == ID($neg); n->macc.ports.push_back(new_port); } - if (cell->type.in("$add", "$sub")) + if (cell->type.in(ID($add), ID($sub))) { - new_port.in_a = sigmap(cell->getPort("\\A")); - new_port.is_signed = cell->getParam("\\A_SIGNED").as_bool(); + new_port.in_a = sigmap(cell->getPort(ID::A)); + new_port.is_signed = cell->getParam(ID(A_SIGNED)).as_bool(); new_port.do_subtract = false; n->macc.ports.push_back(new_port); - new_port.in_a = sigmap(cell->getPort("\\B")); - new_port.is_signed = cell->getParam("\\B_SIGNED").as_bool(); - new_port.do_subtract = cell->type == "$sub"; + new_port.in_a = sigmap(cell->getPort(ID::B)); + new_port.is_signed = cell->getParam(ID(B_SIGNED)).as_bool(); + new_port.do_subtract = cell->type == ID($sub); n->macc.ports.push_back(new_port); } - if (cell->type.in("$mul")) + if (cell->type.in(ID($mul))) { - new_port.in_a = sigmap(cell->getPort("\\A")); - new_port.in_b = sigmap(cell->getPort("\\B")); - new_port.is_signed = cell->getParam("\\A_SIGNED").as_bool(); + new_port.in_a = sigmap(cell->getPort(ID::A)); + new_port.in_b = sigmap(cell->getPort(ID::B)); + new_port.is_signed = cell->getParam(ID(A_SIGNED)).as_bool(); new_port.do_subtract = false; n->macc.ports.push_back(new_port); } @@ -315,7 +326,7 @@ struct AlumaccWorker } if (subtract_b) - C.append(RTLIL::S1); + C.append(State::S1); if (GetSize(C) > 1) goto next_macc; @@ -351,7 +362,7 @@ struct AlumaccWorker for (auto &it : sig_macc) { auto n = it.second; - auto cell = module->addCell(NEW_ID, "$macc"); + auto cell = module->addCell(NEW_ID, ID($macc)); macc_counter++; @@ -361,7 +372,7 @@ struct AlumaccWorker n->macc.optimize(GetSize(n->y)); n->macc.to_cell(cell); - cell->setPort("\\Y", n->y); + cell->setPort(ID::Y, n->y); cell->fixup_parameters(); module->remove(n->cell); delete n; @@ -376,9 +387,9 @@ struct AlumaccWorker for (auto cell : module->selected_cells()) { - if (cell->type.in("$lt", "$le", "$ge", "$gt")) + if (cell->type.in(ID($lt), ID($le), ID($ge), ID($gt))) lge_cells.push_back(cell); - if (cell->type.in("$eq", "$eqx", "$ne", "$nex")) + if (cell->type.in(ID($eq), ID($eqx), ID($ne), ID($nex))) eq_cells.push_back(cell); } @@ -386,13 +397,13 @@ struct AlumaccWorker { log(" creating $alu model for %s (%s):", log_id(cell), log_id(cell->type)); - bool cmp_less = cell->type.in("$lt", "$le"); - bool cmp_equal = cell->type.in("$le", "$ge"); - bool is_signed = cell->getParam("\\A_SIGNED").as_bool(); + bool cmp_less = cell->type.in(ID($lt), ID($le)); + bool cmp_equal = cell->type.in(ID($le), ID($ge)); + bool is_signed = cell->getParam(ID(A_SIGNED)).as_bool(); - RTLIL::SigSpec A = sigmap(cell->getPort("\\A")); - RTLIL::SigSpec B = sigmap(cell->getPort("\\B")); - RTLIL::SigSpec Y = sigmap(cell->getPort("\\Y")); + RTLIL::SigSpec A = sigmap(cell->getPort(ID::A)); + RTLIL::SigSpec B = sigmap(cell->getPort(ID::B)); + RTLIL::SigSpec Y = sigmap(cell->getPort(ID::Y)); if (B < A && GetSize(B)) { cmp_less = !cmp_less; @@ -402,7 +413,7 @@ struct AlumaccWorker alunode_t *n = nullptr; for (auto node : sig_alu[RTLIL::SigSig(A, B)]) - if (node->is_signed == is_signed && node->invert_b && node->c == RTLIL::S1) { + if (node->is_signed == is_signed && node->invert_b && node->c == State::S1) { n = node; break; } @@ -411,7 +422,7 @@ struct AlumaccWorker n = new alunode_t; n->a = A; n->b = B; - n->c = RTLIL::S1; + n->c = State::S1; n->y = module->addWire(NEW_ID, max(GetSize(A), GetSize(B))); n->is_signed = is_signed; n->invert_b = true; @@ -427,12 +438,12 @@ struct AlumaccWorker for (auto cell : eq_cells) { - bool cmp_equal = cell->type.in("$eq", "$eqx"); - bool is_signed = cell->getParam("\\A_SIGNED").as_bool(); + bool cmp_equal = cell->type.in(ID($eq), ID($eqx)); + bool is_signed = cell->getParam(ID(A_SIGNED)).as_bool(); - RTLIL::SigSpec A = sigmap(cell->getPort("\\A")); - RTLIL::SigSpec B = sigmap(cell->getPort("\\B")); - RTLIL::SigSpec Y = sigmap(cell->getPort("\\Y")); + RTLIL::SigSpec A = sigmap(cell->getPort(ID::A)); + RTLIL::SigSpec B = sigmap(cell->getPort(ID::B)); + RTLIL::SigSpec Y = sigmap(cell->getPort(ID::Y)); if (B < A && GetSize(B)) std::swap(A, B); @@ -440,7 +451,7 @@ struct AlumaccWorker alunode_t *n = nullptr; for (auto node : sig_alu[RTLIL::SigSig(A, B)]) - if (node->is_signed == is_signed && node->invert_b && node->c == RTLIL::S1) { + if (node->is_signed == is_signed && node->invert_b && node->c == State::S1) { n = node; break; } @@ -471,7 +482,7 @@ struct AlumaccWorker goto delete_node; } - n->alu_cell = module->addCell(NEW_ID, "$alu"); + n->alu_cell = module->addCell(NEW_ID, ID($alu)); alu_counter++; log(" creating $alu cell for "); @@ -482,13 +493,13 @@ struct AlumaccWorker if (n->cells.size() > 0) n->alu_cell->set_src_attribute(n->cells[0]->get_src_attribute()); - n->alu_cell->setPort("\\A", n->a); - n->alu_cell->setPort("\\B", n->b); - n->alu_cell->setPort("\\CI", GetSize(n->c) ? n->c : RTLIL::S0); - n->alu_cell->setPort("\\BI", n->invert_b ? RTLIL::S1 : RTLIL::S0); - n->alu_cell->setPort("\\Y", n->y); - n->alu_cell->setPort("\\X", module->addWire(NEW_ID, GetSize(n->y))); - n->alu_cell->setPort("\\CO", module->addWire(NEW_ID, GetSize(n->y))); + n->alu_cell->setPort(ID::A, n->a); + n->alu_cell->setPort(ID::B, n->b); + n->alu_cell->setPort(ID(CI), GetSize(n->c) ? n->c : State::S0); + n->alu_cell->setPort(ID(BI), n->invert_b ? State::S1 : State::S0); + n->alu_cell->setPort(ID::Y, n->y); + n->alu_cell->setPort(ID(X), module->addWire(NEW_ID, GetSize(n->y))); + n->alu_cell->setPort(ID(CO), module->addWire(NEW_ID, GetSize(n->y))); n->alu_cell->fixup_parameters(n->is_signed, n->is_signed); for (auto &it : n->cmp) @@ -539,7 +550,7 @@ struct AlumaccWorker struct AlumaccPass : public Pass { AlumaccPass() : Pass("alumacc", "extract ALU and MACC cells") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -549,7 +560,7 @@ struct AlumaccPass : public Pass { log("and $macc cells.\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing ALUMACC pass (create $alu and $macc cells).\n"); diff --git a/passes/techmap/attrmap.cc b/passes/techmap/attrmap.cc index dec81d216..5f30817d4 100644 --- a/passes/techmap/attrmap.cc +++ b/passes/techmap/attrmap.cc @@ -81,7 +81,7 @@ struct AttrmapAction { struct AttrmapTocase : AttrmapAction { string name; - virtual bool apply(IdString &id, Const&) { + bool apply(IdString &id, Const&) YS_OVERRIDE { if (match_name(name, id, true)) id = RTLIL::escape_id(name); return true; @@ -90,7 +90,7 @@ struct AttrmapTocase : AttrmapAction { struct AttrmapRename : AttrmapAction { string old_name, new_name; - virtual bool apply(IdString &id, Const&) { + bool apply(IdString &id, Const&) YS_OVERRIDE { if (match_name(old_name, id)) id = RTLIL::escape_id(new_name); return true; @@ -101,7 +101,7 @@ struct AttrmapMap : AttrmapAction { bool imap; string old_name, new_name; string old_value, new_value; - virtual bool apply(IdString &id, Const &val) { + bool apply(IdString &id, Const &val) YS_OVERRIDE { if (match_name(old_name, id) && match_value(old_value, val, true)) { id = RTLIL::escape_id(new_name); val = make_value(new_value); @@ -111,9 +111,10 @@ struct AttrmapMap : AttrmapAction { }; struct AttrmapRemove : AttrmapAction { + bool has_value; string name, value; - virtual bool apply(IdString &id, Const &val) { - return !(match_name(name, id) && match_value(value, val)); + bool apply(IdString &id, Const &val) YS_OVERRIDE { + return !(match_name(name, id) && (!has_value || match_value(value, val))); } }; @@ -142,33 +143,94 @@ void attrmap_apply(string objname, vector<std::unique_ptr<AttrmapAction>> &actio attributes.swap(new_attributes); } +void log_attrmap_paramap_options() +{ + log(" -tocase <name>\n"); + log(" Match attribute names case-insensitively and set it to the specified\n"); + log(" name.\n"); + log("\n"); + log(" -rename <old_name> <new_name>\n"); + log(" Rename attributes as specified\n"); + log("\n"); + log(" -map <old_name>=<old_value> <new_name>=<new_value>\n"); + log(" Map key/value pairs as indicated.\n"); + log("\n"); + log(" -imap <old_name>=<old_value> <new_name>=<new_value>\n"); + log(" Like -map, but use case-insensitive match for <old_value> when\n"); + log(" it is a string value.\n"); + log("\n"); + log(" -remove <name>=<value>\n"); + log(" Remove attributes matching this pattern.\n"); +} + +bool parse_attrmap_paramap_options(size_t &argidx, std::vector<std::string> &args, vector<std::unique_ptr<AttrmapAction>> &actions) +{ + std::string arg = args[argidx]; + if (arg == "-tocase" && argidx+1 < args.size()) { + auto action = new AttrmapTocase; + action->name = args[++argidx]; + actions.push_back(std::unique_ptr<AttrmapAction>(action)); + return true; + } + if (arg == "-rename" && argidx+2 < args.size()) { + auto action = new AttrmapRename; + action->old_name = args[++argidx]; + action->new_name = args[++argidx]; + actions.push_back(std::unique_ptr<AttrmapAction>(action)); + return true; + } + if ((arg == "-map" || arg == "-imap") && argidx+2 < args.size()) { + string arg1 = args[++argidx]; + string arg2 = args[++argidx]; + string val1, val2; + size_t p = arg1.find("="); + if (p != string::npos) { + val1 = arg1.substr(p+1); + arg1 = arg1.substr(0, p); + } + p = arg2.find("="); + if (p != string::npos) { + val2 = arg2.substr(p+1); + arg2 = arg2.substr(0, p); + } + auto action = new AttrmapMap; + action->imap = (arg == "-map"); + action->old_name = arg1; + action->new_name = arg2; + action->old_value = val1; + action->new_value = val2; + actions.push_back(std::unique_ptr<AttrmapAction>(action)); + return true; + } + if (arg == "-remove" && argidx+1 < args.size()) { + string arg1 = args[++argidx], val1; + size_t p = arg1.find("="); + if (p != string::npos) { + val1 = arg1.substr(p+1); + arg1 = arg1.substr(0, p); + } + auto action = new AttrmapRemove; + action->name = arg1; + action->has_value = (p != string::npos); + action->value = val1; + actions.push_back(std::unique_ptr<AttrmapAction>(action)); + return true; + } + return false; +} + struct AttrmapPass : public Pass { AttrmapPass() : Pass("attrmap", "renaming attributes") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); log(" attrmap [options] [selection]\n"); log("\n"); - log("This command renames attributes and/or mapps key/value pairs to\n"); + log("This command renames attributes and/or maps key/value pairs to\n"); log("other key/value pairs.\n"); log("\n"); - log(" -tocase <name>\n"); - log(" Match attribute names case-insensitively and set it to the specified\n"); - log(" name.\n"); - log("\n"); - log(" -rename <old_name> <new_name>\n"); - log(" Rename attributes as specified\n"); - log("\n"); - log(" -map <old_name>=<old_value> <new_name>=<new_value>\n"); - log(" Map key/value pairs as indicated.\n"); - log("\n"); - log(" -imap <old_name>=<old_value> <new_name>=<new_value>\n"); - log(" Like -map, but use case-insensitive match for <old_value> when\n"); - log(" it is a string value.\n"); - log("\n"); - log(" -remove <name>=<value>\n"); - log(" Remove attributes matching this pattern.\n"); + log_attrmap_paramap_options(); log("\n"); log(" -modattr\n"); log(" Operate on module attributes instead of attributes on wires and cells.\n"); @@ -179,7 +241,7 @@ struct AttrmapPass : public Pass { log(" -imap keep=\"false\" keep=0 -remove keep=0\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing ATTRMAP pass (move or copy attributes).\n"); @@ -189,57 +251,9 @@ struct AttrmapPass : public Pass { size_t argidx; for (argidx = 1; argidx < args.size(); argidx++) { - std::string arg = args[argidx]; - if (arg == "-tocase" && argidx+1 < args.size()) { - auto action = new AttrmapTocase; - action->name = args[++argidx]; - actions.push_back(std::unique_ptr<AttrmapAction>(action)); - continue; - } - if (arg == "-rename" && argidx+2 < args.size()) { - auto action = new AttrmapRename; - action->old_name = args[++argidx]; - action->new_name = args[++argidx]; - actions.push_back(std::unique_ptr<AttrmapAction>(action)); - continue; - } - if ((arg == "-map" || arg == "-imap") && argidx+2 < args.size()) { - string arg1 = args[++argidx]; - string arg2 = args[++argidx]; - string val1, val2; - size_t p = arg1.find("="); - if (p != string::npos) { - val1 = arg1.substr(p+1); - arg1 = arg1.substr(0, p); - } - p = arg2.find("="); - if (p != string::npos) { - val2 = arg2.substr(p+1); - arg2 = arg2.substr(0, p); - } - auto action = new AttrmapMap; - action->imap = (arg == "-map"); - action->old_name = arg1; - action->new_name = arg2; - action->old_value = val1; - action->new_value = val2; - actions.push_back(std::unique_ptr<AttrmapAction>(action)); - continue; - } - if (arg == "-remove" && argidx+1 < args.size()) { - string arg1 = args[++argidx], val1; - size_t p = arg1.find("="); - if (p != string::npos) { - val1 = arg1.substr(p+1); - arg1 = arg1.substr(0, p); - } - auto action = new AttrmapRemove; - action->name = arg1; - action->value = val1; - actions.push_back(std::unique_ptr<AttrmapAction>(action)); + if (parse_attrmap_paramap_options(argidx, args, actions)) continue; - } - if (arg == "-modattr") { + if (args[argidx] == "-modattr") { modattr_mode = true; continue; } @@ -261,9 +275,67 @@ struct AttrmapPass : public Pass { for (auto cell : module->selected_cells()) attrmap_apply(stringf("%s.%s", log_id(module), log_id(cell)), actions, cell->attributes); + + for (auto proc : module->processes) + { + if (!design->selected(module, proc.second)) + continue; + attrmap_apply(stringf("%s.%s", log_id(module), log_id(proc.first)), actions, proc.second->attributes); + + std::vector<RTLIL::CaseRule*> all_cases = {&proc.second->root_case}; + while (!all_cases.empty()) { + RTLIL::CaseRule *cs = all_cases.back(); + all_cases.pop_back(); + attrmap_apply(stringf("%s.%s (case)", log_id(module), log_id(proc.first)), actions, cs->attributes); + + for (auto &sw : cs->switches) { + attrmap_apply(stringf("%s.%s (switch)", log_id(module), log_id(proc.first)), actions, sw->attributes); + all_cases.insert(all_cases.end(), sw->cases.begin(), sw->cases.end()); + } + } + } } } } } AttrmapPass; +struct ParamapPass : public Pass { + ParamapPass() : Pass("paramap", "renaming cell parameters") { } + void help() YS_OVERRIDE + { + // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| + log("\n"); + log(" paramap [options] [selection]\n"); + log("\n"); + log("This command renames cell parameters and/or maps key/value pairs to\n"); + log("other key/value pairs.\n"); + log("\n"); + log_attrmap_paramap_options(); + log("\n"); + log("For example, mapping Diamond-style ECP5 \"init\" attributes to Yosys-style:\n"); + log("\n"); + log(" paramap -tocase INIT t:LUT4\n"); + log("\n"); + } + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE + { + log_header(design, "Executing PARAMAP pass (move or copy cell parameters).\n"); + + vector<std::unique_ptr<AttrmapAction>> actions; + + size_t argidx; + for (argidx = 1; argidx < args.size(); argidx++) + { + if (parse_attrmap_paramap_options(argidx, args, actions)) + continue; + break; + } + extra_args(args, argidx, design); + + for (auto module : design->selected_modules()) + for (auto cell : module->selected_cells()) + attrmap_apply(stringf("%s.%s", log_id(module), log_id(cell)), actions, cell->parameters); + } +} ParamapPass; + PRIVATE_NAMESPACE_END diff --git a/passes/techmap/attrmvcp.cc b/passes/techmap/attrmvcp.cc index 1537def00..e59aa6518 100644 --- a/passes/techmap/attrmvcp.cc +++ b/passes/techmap/attrmvcp.cc @@ -25,7 +25,7 @@ PRIVATE_NAMESPACE_BEGIN struct AttrmvcpPass : public Pass { AttrmvcpPass() : Pass("attrmvcp", "move or copy attributes from wires to driving cells") { } - virtual void help() + void help() YS_OVERRIDE { log("\n"); log(" attrmvcp [options] [selection]\n"); @@ -53,7 +53,7 @@ struct AttrmvcpPass : public Pass { log(" multiple times.\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing ATTRMVCP pass (move or copy attributes).\n"); diff --git a/passes/techmap/clkbufmap.cc b/passes/techmap/clkbufmap.cc new file mode 100644 index 000000000..b9cd68883 --- /dev/null +++ b/passes/techmap/clkbufmap.cc @@ -0,0 +1,339 @@ +/* + * yosys -- Yosys Open SYnthesis Suite + * + * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at> + * Copyright (C) 2019 Marcin Kościelnicki <mwk@0x04.net> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#include "kernel/yosys.h" +#include "kernel/sigtools.h" + +USING_YOSYS_NAMESPACE +PRIVATE_NAMESPACE_BEGIN + +void split_portname_pair(std::string &port1, std::string &port2) +{ + size_t pos = port1.find_first_of(':'); + if (pos != std::string::npos) { + port2 = port1.substr(pos+1); + port1 = port1.substr(0, pos); + } +} + +struct ClkbufmapPass : public Pass { + ClkbufmapPass() : Pass("clkbufmap", "insert global buffers on clock networks") { } + void help() YS_OVERRIDE + { + // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| + log("\n"); + log(" clkbufmap [options] [selection]\n"); + log("\n"); + log("Inserts global buffers between nets connected to clock inputs and their drivers.\n"); + log("\n"); + log("In the absence of any selection, all wires without the 'clkbuf_inhibit'\n"); + log("attribute will be considered for global buffer insertion.\n"); + log("Alternatively, to consider all wires without the 'buffer_type' attribute set to\n"); + log("'none' or 'bufr' one would specify:\n"); + log(" 'w:* a:buffer_type=none a:buffer_type=bufr %%u %%d'\n"); + log("as the selection.\n"); + log("\n"); + log(" -buf <celltype> <portname_out>:<portname_in>\n"); + log(" Specifies the cell type to use for the global buffers\n"); + log(" and its port names. The first port will be connected to\n"); + log(" the clock network sinks, and the second will be connected\n"); + log(" to the actual clock source. This option is required.\n"); + log("\n"); + log(" -inpad <celltype> <portname_out>:<portname_in>\n"); + log(" If specified, a PAD cell of the given type is inserted on\n"); + log(" clock nets that are also top module's inputs (in addition\n"); + log(" to the global buffer).\n"); + log("\n"); + } + + void module_queue(Design *design, Module *module, std::vector<Module *> &modules_sorted, pool<Module *> &modules_processed) { + if (modules_processed.count(module)) + return; + for (auto cell : module->cells()) { + Module *submodule = design->module(cell->type); + if (!submodule) + continue; + module_queue(design, submodule, modules_sorted, modules_processed); + } + modules_sorted.push_back(module); + modules_processed.insert(module); + } + + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE + { + log_header(design, "Executing CLKBUFMAP pass (inserting global clock buffers).\n"); + + std::string buf_celltype, buf_portname, buf_portname2; + std::string inpad_celltype, inpad_portname, inpad_portname2; + + size_t argidx; + for (argidx = 1; argidx < args.size(); argidx++) + { + std::string arg = args[argidx]; + if (arg == "-buf" && argidx+2 < args.size()) { + buf_celltype = args[++argidx]; + buf_portname = args[++argidx]; + split_portname_pair(buf_portname, buf_portname2); + continue; + } + if (arg == "-inpad" && argidx+2 < args.size()) { + inpad_celltype = args[++argidx]; + inpad_portname = args[++argidx]; + split_portname_pair(inpad_portname, inpad_portname2); + continue; + } + break; + } + + bool select = false; + if (argidx < args.size()) { + if (args[argidx].compare(0, 1, "-") != 0) + select = true; + extra_args(args, argidx, design); + } + + if (buf_celltype.empty()) + log_error("The -buf option is required.\n"); + + // Cell type, port name, bit index. + pool<pair<IdString, pair<IdString, int>>> sink_ports; + pool<pair<IdString, pair<IdString, int>>> buf_ports; + dict<pair<IdString, pair<IdString, int>>, pair<IdString, int>> inv_ports_out; + dict<pair<IdString, pair<IdString, int>>, pair<IdString, int>> inv_ports_in; + + // Process submodules before module using them. + std::vector<Module *> modules_sorted; + pool<Module *> modules_processed; + for (auto module : design->selected_modules()) + module_queue(design, module, modules_sorted, modules_processed); + + for (auto module : modules_sorted) + { + if (module->get_blackbox_attribute()) { + for (auto port : module->ports) { + auto wire = module->wire(port); + if (wire->get_bool_attribute("\\clkbuf_driver")) + for (int i = 0; i < GetSize(wire); i++) + buf_ports.insert(make_pair(module->name, make_pair(wire->name, i))); + if (wire->get_bool_attribute("\\clkbuf_sink")) + for (int i = 0; i < GetSize(wire); i++) + sink_ports.insert(make_pair(module->name, make_pair(wire->name, i))); + auto it = wire->attributes.find("\\clkbuf_inv"); + if (it != wire->attributes.end()) { + IdString in_name = RTLIL::escape_id(it->second.decode_string()); + for (int i = 0; i < GetSize(wire); i++) { + inv_ports_out[make_pair(module->name, make_pair(wire->name, i))] = make_pair(in_name, i); + inv_ports_in[make_pair(module->name, make_pair(in_name, i))] = make_pair(wire->name, i); + } + } + } + continue; + } + pool<SigBit> sink_wire_bits; + pool<SigBit> buf_wire_bits; + pool<SigBit> driven_wire_bits; + SigMap sigmap(module); + // bit -> (buffer, buffer's input) + dict<SigBit, pair<Cell *, Wire *>> buffered_bits; + + // First, collect nets that could use a clock buffer. + for (auto cell : module->cells()) + for (auto port : cell->connections()) + for (int i = 0; i < port.second.size(); i++) + if (sink_ports.count(make_pair(cell->type, make_pair(port.first, i)))) + sink_wire_bits.insert(sigmap(port.second[i])); + + // Second, collect ones that already have a clock buffer. + for (auto cell : module->cells()) + for (auto port : cell->connections()) + for (int i = 0; i < port.second.size(); i++) + if (buf_ports.count(make_pair(cell->type, make_pair(port.first, i)))) + buf_wire_bits.insert(sigmap(port.second[i])); + + // Third, propagate tags through inverters. + bool retry = true; + while (retry) { + retry = false; + for (auto cell : module->cells()) + for (auto port : cell->connections()) + for (int i = 0; i < port.second.size(); i++) { + auto it = inv_ports_out.find(make_pair(cell->type, make_pair(port.first, i))); + auto bit = sigmap(port.second[i]); + // If output of an inverter is connected to a sink, mark it as buffered, + // and request a buffer on the inverter's input instead. + if (it != inv_ports_out.end() && !buf_wire_bits.count(bit) && sink_wire_bits.count(bit)) { + buf_wire_bits.insert(bit); + auto other_bit = sigmap(cell->getPort(it->second.first)[it->second.second]); + sink_wire_bits.insert(other_bit); + retry = true; + } + // If input of an inverter is marked as already-buffered, + // mark its output already-buffered as well. + auto it2 = inv_ports_in.find(make_pair(cell->type, make_pair(port.first, i))); + if (it2 != inv_ports_in.end() && buf_wire_bits.count(bit)) { + auto other_bit = sigmap(cell->getPort(it2->second.first)[it2->second.second]); + if (!buf_wire_bits.count(other_bit)) { + buf_wire_bits.insert(other_bit); + retry = true; + } + } + + } + }; + + // Collect all driven bits. + for (auto cell : module->cells()) + for (auto port : cell->connections()) + if (cell->output(port.first)) + for (int i = 0; i < port.second.size(); i++) + driven_wire_bits.insert(port.second[i]); + + // Insert buffers. + std::vector<pair<Wire *, Wire *>> input_queue; + // Copy current wire list, as we will be adding new ones during iteration. + std::vector<Wire *> wires(module->wires()); + for (auto wire : wires) + { + // Should not happen. + if (wire->port_input && wire->port_output) + continue; + bool process_wire = module->selected(wire); + if (!select && wire->get_bool_attribute("\\clkbuf_inhibit")) + process_wire = false; + if (!process_wire) { + // This wire is supposed to be bypassed, so make sure we don't buffer it in + // some buffer higher up in the hierarchy. + if (wire->port_output) + for (int i = 0; i < GetSize(wire); i++) + buf_ports.insert(make_pair(module->name, make_pair(wire->name, i))); + continue; + } + + pool<int> input_bits; + + for (int i = 0; i < GetSize(wire); i++) + { + SigBit wire_bit(wire, i); + SigBit mapped_wire_bit = sigmap(wire_bit); + if (buf_wire_bits.count(mapped_wire_bit)) { + // Already buffered downstream. If this is an output, mark it. + if (wire->port_output) + buf_ports.insert(make_pair(module->name, make_pair(wire->name, i))); + } else if (!sink_wire_bits.count(mapped_wire_bit)) { + // Nothing to do. + } else if (driven_wire_bits.count(wire_bit) || (wire->port_input && module->get_bool_attribute("\\top"))) { + // Clock network not yet buffered, driven by one of + // our cells or a top-level input -- buffer it. + + log("Inserting %s on %s.%s[%d].\n", buf_celltype.c_str(), log_id(module), log_id(wire), i); + RTLIL::Cell *cell = module->addCell(NEW_ID, RTLIL::escape_id(buf_celltype)); + Wire *iwire = module->addWire(NEW_ID); + cell->setPort(RTLIL::escape_id(buf_portname), mapped_wire_bit); + cell->setPort(RTLIL::escape_id(buf_portname2), iwire); + if (wire->port_input && !inpad_celltype.empty() && module->get_bool_attribute("\\top")) { + log("Inserting %s on %s.%s[%d].\n", inpad_celltype.c_str(), log_id(module), log_id(wire), i); + RTLIL::Cell *cell2 = module->addCell(NEW_ID, RTLIL::escape_id(inpad_celltype)); + cell2->setPort(RTLIL::escape_id(inpad_portname), iwire); + iwire = module->addWire(NEW_ID); + cell2->setPort(RTLIL::escape_id(inpad_portname2), iwire); + } + buffered_bits[mapped_wire_bit] = make_pair(cell, iwire); + + if (wire->port_input) { + input_bits.insert(i); + } + } else if (wire->port_input) { + // A clock input in a submodule -- mark it, let higher level + // worry about it. + if (wire->port_input) + sink_ports.insert(make_pair(module->name, make_pair(wire->name, i))); + } + } + if (!input_bits.empty()) { + // This is an input port and some buffers were inserted -- we need + // to create a new input wire and transfer attributes. + Wire *new_wire = module->addWire(NEW_ID, wire); + + for (int i = 0; i < wire->width; i++) { + SigBit wire_bit(wire, i); + SigBit mapped_wire_bit = sigmap(wire_bit); + auto it = buffered_bits.find(mapped_wire_bit); + if (it != buffered_bits.end()) { + + module->connect(it->second.second, SigSpec(new_wire, i)); + } else { + module->connect(SigSpec(wire, i), SigSpec(new_wire, i)); + } + } + input_queue.push_back(make_pair(wire, new_wire)); + } + } + + // Mark any newly-buffered output ports as such. + for (auto wire : module->selected_wires()) { + if (wire->port_input || !wire->port_output) + continue; + for (int i = 0; i < GetSize(wire); i++) + { + SigBit wire_bit(wire, i); + SigBit mapped_wire_bit = sigmap(wire_bit); + if (buffered_bits.count(mapped_wire_bit)) + buf_ports.insert(make_pair(module->name, make_pair(wire->name, i))); + } + } + + // Reconnect the drivers to buffer inputs. + for (auto cell : module->cells()) + for (auto port : cell->connections()) { + if (!cell->output(port.first)) + continue; + SigSpec sig = port.second; + bool newsig = false; + for (auto &bit : sig) { + const auto it = buffered_bits.find(sigmap(bit)); + if (it == buffered_bits.end()) + continue; + // Avoid substituting buffer's own output pin. + if (cell == it->second.first) + continue; + bit = it->second.second; + newsig = true; + } + if (newsig) + cell->setPort(port.first, sig); + } + + // This has to be done last, to avoid upsetting sigmap before the port reconnections. + for (auto &it : input_queue) { + Wire *wire = it.first; + Wire *new_wire = it.second; + module->swap_names(new_wire, wire); + wire->attributes.clear(); + wire->port_id = 0; + wire->port_input = false; + wire->port_output = false; + } + + module->fixup_ports(); + } + } +} ClkbufmapPass; + +PRIVATE_NAMESPACE_END diff --git a/passes/techmap/deminout.cc b/passes/techmap/deminout.cc index ed4e45762..b976b401b 100644 --- a/passes/techmap/deminout.cc +++ b/passes/techmap/deminout.cc @@ -25,7 +25,7 @@ PRIVATE_NAMESPACE_BEGIN struct DeminoutPass : public Pass { DeminoutPass() : Pass("deminout", "demote inout ports to input or output") { } - virtual void help() + void help() YS_OVERRIDE { log("\n"); log(" deminout [options] [selection]\n"); @@ -33,7 +33,7 @@ struct DeminoutPass : public Pass { log("\"Demote\" inout ports to input or output ports, if possible.\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing DEMINOUT pass (demote inout ports to input or output).\n"); @@ -57,7 +57,7 @@ struct DeminoutPass : public Pass { for (auto module : design->selected_modules()) { SigMap sigmap(module); - pool<SigBit> bits_written, bits_used, bits_inout; + pool<SigBit> bits_written, bits_used, bits_inout, bits_tribuf; dict<SigBit, int> bits_numports; for (auto wire : module->wires()) @@ -82,6 +82,25 @@ struct DeminoutPass : public Pass { if (cellport_in) for (auto bit : sigmap(conn.second)) bits_used.insert(bit); + + if (conn.first == ID::Y && cell->type.in(ID($mux), ID($pmux), ID($_MUX_), ID($_TBUF_), ID($tribuf))) + { + bool tribuf = cell->type.in(ID($_TBUF_), ID($tribuf)); + + if (!tribuf) { + for (auto &c : cell->connections()) { + if (!c.first.in(ID::A, ID::B)) + continue; + for (auto b : sigmap(c.second)) + if (b == State::Sz) + tribuf = true; + } + } + + if (tribuf) + for (auto bit : sigmap(conn.second)) + bits_tribuf.insert(bit); + } } for (auto wire : module->selected_wires()) @@ -94,11 +113,17 @@ struct DeminoutPass : public Pass { { if (bits_numports[bit] > 1 || bits_inout.count(bit)) new_input = true, new_output = true; - - if (bits_written.count(bit)) + if (bit == State::S0 || bit == State::S1) + new_output = true; + if (bits_written.count(bit)) { new_output = true; - else if (bits_used.count(bit)) - new_input = true; + if (bits_tribuf.count(bit)) + goto tribuf_bit; + } else { + tribuf_bit: + if (bits_used.count(bit)) + new_input = true; + } } if (new_input != new_output) { diff --git a/passes/techmap/dff2dffe.cc b/passes/techmap/dff2dffe.cc index 1b8920bb7..0242256e5 100644 --- a/passes/techmap/dff2dffe.cc +++ b/passes/techmap/dff2dffe.cc @@ -52,13 +52,13 @@ struct Dff2dffeWorker } for (auto cell : module->cells()) { - if (cell->type == "$mux" || cell->type == "$pmux" || cell->type == "$_MUX_") { - RTLIL::SigSpec sig_y = sigmap(cell->getPort("\\Y")); + if (cell->type.in(ID($mux), ID($pmux), ID($_MUX_))) { + RTLIL::SigSpec sig_y = sigmap(cell->getPort(ID::Y)); for (int i = 0; i < GetSize(sig_y); i++) bit2mux[sig_y[i]] = cell_int_t(cell, i); } if (direct_dict.empty()) { - if (cell->type == "$dff" || cell->type == "$_DFF_N_" || cell->type == "$_DFF_P_") + if (cell->type.in(ID($dff), ID($_DFF_N_), ID($_DFF_P_))) dff_cells.push_back(cell); } else { if (direct_dict.count(cell->type)) @@ -86,9 +86,9 @@ struct Dff2dffeWorker return ret; cell_int_t mux_cell_int = bit2mux.at(d); - RTLIL::SigSpec sig_a = sigmap(mux_cell_int.first->getPort("\\A")); - RTLIL::SigSpec sig_b = sigmap(mux_cell_int.first->getPort("\\B")); - RTLIL::SigSpec sig_s = sigmap(mux_cell_int.first->getPort("\\S")); + RTLIL::SigSpec sig_a = sigmap(mux_cell_int.first->getPort(ID::A)); + RTLIL::SigSpec sig_b = sigmap(mux_cell_int.first->getPort(ID::B)); + RTLIL::SigSpec sig_s = sigmap(mux_cell_int.first->getPort(ID(S))); int width = GetSize(sig_a), index = mux_cell_int.second; for (int i = 0; i < GetSize(sig_s); i++) @@ -97,9 +97,9 @@ struct Dff2dffeWorker ret = find_muxtree_feedback_patterns(sig_b[i*width + index], q, path); if (sig_b[i*width + index] == q) { - RTLIL::SigSpec s = mux_cell_int.first->getPort("\\B"); + RTLIL::SigSpec s = mux_cell_int.first->getPort(ID::B); s[i*width + index] = RTLIL::Sx; - mux_cell_int.first->setPort("\\B", s); + mux_cell_int.first->setPort(ID::B, s); } return ret; @@ -120,9 +120,9 @@ struct Dff2dffeWorker ret.insert(pat); if (sig_b[i*width + index] == q) { - RTLIL::SigSpec s = mux_cell_int.first->getPort("\\B"); + RTLIL::SigSpec s = mux_cell_int.first->getPort(ID::B); s[i*width + index] = RTLIL::Sx; - mux_cell_int.first->setPort("\\B", s); + mux_cell_int.first->setPort(ID::B, s); } } @@ -130,9 +130,9 @@ struct Dff2dffeWorker ret.insert(pat); if (sig_a[index] == q) { - RTLIL::SigSpec s = mux_cell_int.first->getPort("\\A"); + RTLIL::SigSpec s = mux_cell_int.first->getPort(ID::A); s[index] = RTLIL::Sx; - mux_cell_int.first->setPort("\\A", s); + mux_cell_int.first->setPort(ID::A, s); } return ret; @@ -167,7 +167,7 @@ struct Dff2dffeWorker } if (GetSize(or_input) == 0) - return RTLIL::S1; + return State::S1; if (GetSize(or_input) == 1) return or_input; @@ -185,8 +185,8 @@ struct Dff2dffeWorker void handle_dff_cell(RTLIL::Cell *dff_cell) { - RTLIL::SigSpec sig_d = sigmap(dff_cell->getPort("\\D")); - RTLIL::SigSpec sig_q = sigmap(dff_cell->getPort("\\Q")); + RTLIL::SigSpec sig_d = sigmap(dff_cell->getPort(ID(D))); + RTLIL::SigSpec sig_q = sigmap(dff_cell->getPort(ID(Q))); std::map<patterns_t, std::set<int>> grouped_patterns; std::set<int> remaining_indices; @@ -208,16 +208,16 @@ struct Dff2dffeWorker } if (!direct_dict.empty()) { log(" converting %s cell %s to %s for %s -> %s.\n", log_id(dff_cell->type), log_id(dff_cell), log_id(direct_dict.at(dff_cell->type)), log_signal(new_sig_d), log_signal(new_sig_q)); - dff_cell->setPort("\\E", make_patterns_logic(it.first, true)); + dff_cell->setPort(ID(E), make_patterns_logic(it.first, true)); dff_cell->type = direct_dict.at(dff_cell->type); } else - if (dff_cell->type == "$dff") { - RTLIL::Cell *new_cell = module->addDffe(NEW_ID, dff_cell->getPort("\\CLK"), make_patterns_logic(it.first, false), - new_sig_d, new_sig_q, dff_cell->getParam("\\CLK_POLARITY").as_bool(), true); + if (dff_cell->type == ID($dff)) { + RTLIL::Cell *new_cell = module->addDffe(NEW_ID, dff_cell->getPort(ID(CLK)), make_patterns_logic(it.first, false), + new_sig_d, new_sig_q, dff_cell->getParam(ID(CLK_POLARITY)).as_bool(), true); log(" created $dffe cell %s for %s -> %s.\n", log_id(new_cell), log_signal(new_sig_d), log_signal(new_sig_q)); } else { - RTLIL::Cell *new_cell = module->addDffeGate(NEW_ID, dff_cell->getPort("\\C"), make_patterns_logic(it.first, true), - new_sig_d, new_sig_q, dff_cell->type == "$_DFF_P_", true); + RTLIL::Cell *new_cell = module->addDffeGate(NEW_ID, dff_cell->getPort(ID(C)), make_patterns_logic(it.first, true), + new_sig_d, new_sig_q, dff_cell->type == ID($_DFF_P_), true); log(" created %s cell %s for %s -> %s.\n", log_id(new_cell->type), log_id(new_cell), log_signal(new_sig_d), log_signal(new_sig_q)); } } @@ -235,9 +235,9 @@ struct Dff2dffeWorker new_sig_d.append(sig_d[i]); new_sig_q.append(sig_q[i]); } - dff_cell->setPort("\\D", new_sig_d); - dff_cell->setPort("\\Q", new_sig_q); - dff_cell->setParam("\\WIDTH", GetSize(remaining_indices)); + dff_cell->setPort(ID(D), new_sig_d); + dff_cell->setPort(ID(Q), new_sig_q); + dff_cell->setParam(ID(WIDTH), GetSize(remaining_indices)); } } @@ -253,7 +253,7 @@ struct Dff2dffeWorker struct Dff2dffePass : public Pass { Dff2dffePass() : Pass("dff2dffe", "transform $dff cells to $dffe cells") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -265,7 +265,11 @@ struct Dff2dffePass : public Pass { log("\n"); log(" -unmap\n"); log(" operate in the opposite direction: replace $dffe cells with combinations\n"); - log(" of $dff and $mux cells. the options below are ignore in unmap mode.\n"); + log(" of $dff and $mux cells. the options below are ignored in unmap mode.\n"); + log("\n"); + log(" -unmap-mince N\n"); + log(" Same as -unmap but only unmap $dffe where the clock enable port\n"); + log(" signal is used by less $dffe than the specified number\n"); log("\n"); log(" -direct <internal_gate_type> <external_gate_type>\n"); log(" map directly to external gate type. <internal_gate_type> can\n"); @@ -279,15 +283,17 @@ struct Dff2dffePass : public Pass { log(" -direct-match <pattern>\n"); log(" like -direct for all DFF cell types matching the expression.\n"); log(" this will use $__DFFE_* as <external_gate_type> matching the\n"); - log(" internal gate type $_DFF_*_, except for $_DFF_[NP]_, which is\n"); - log(" converted to $_DFFE_[NP]_.\n"); + log(" internal gate type $_DFF_*_, and $__DFFSE_* for those matching\n"); + log(" $_DFFS_*_, except for $_DFF_[NP]_, which is converted to \n"); + log(" $_DFFE_[NP]_.\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing DFF2DFFE pass (transform $dff to $dffe where applicable).\n"); bool unmap_mode = false; + int min_ce_use = -1; dict<IdString, IdString> direct_dict; size_t argidx; @@ -296,6 +302,11 @@ struct Dff2dffePass : public Pass { unmap_mode = true; continue; } + if (args[argidx] == "-unmap-mince" && argidx + 1 < args.size()) { + unmap_mode = true; + min_ce_use = atoi(args[++argidx].c_str()); + continue; + } if (args[argidx] == "-direct" && argidx + 2 < args.size()) { string direct_from = RTLIL::escape_id(args[++argidx]); string direct_to = RTLIL::escape_id(args[++argidx]); @@ -305,16 +316,25 @@ struct Dff2dffePass : public Pass { if (args[argidx] == "-direct-match" && argidx + 1 < args.size()) { bool found_match = false; const char *pattern = args[++argidx].c_str(); - if (patmatch(pattern, "$_DFF_P_" )) found_match = true, direct_dict["$_DFF_P_" ] = "$_DFFE_PP_"; - if (patmatch(pattern, "$_DFF_N_" )) found_match = true, direct_dict["$_DFF_N_" ] = "$_DFFE_NP_"; - if (patmatch(pattern, "$_DFF_NN0_")) found_match = true, direct_dict["$_DFF_NN0_"] = "$__DFFE_NN0"; - if (patmatch(pattern, "$_DFF_NN1_")) found_match = true, direct_dict["$_DFF_NN1_"] = "$__DFFE_NN1"; - if (patmatch(pattern, "$_DFF_NP0_")) found_match = true, direct_dict["$_DFF_NP0_"] = "$__DFFE_NP0"; - if (patmatch(pattern, "$_DFF_NP1_")) found_match = true, direct_dict["$_DFF_NP1_"] = "$__DFFE_NP1"; - if (patmatch(pattern, "$_DFF_PN0_")) found_match = true, direct_dict["$_DFF_PN0_"] = "$__DFFE_PN0"; - if (patmatch(pattern, "$_DFF_PN1_")) found_match = true, direct_dict["$_DFF_PN1_"] = "$__DFFE_PN1"; - if (patmatch(pattern, "$_DFF_PP0_")) found_match = true, direct_dict["$_DFF_PP0_"] = "$__DFFE_PP0"; - if (patmatch(pattern, "$_DFF_PP1_")) found_match = true, direct_dict["$_DFF_PP1_"] = "$__DFFE_PP1"; + if (patmatch(pattern, "$_DFF_P_" )) found_match = true, direct_dict[ID($_DFF_P_) ] = ID($_DFFE_PP_); + if (patmatch(pattern, "$_DFF_N_" )) found_match = true, direct_dict[ID($_DFF_N_) ] = ID($_DFFE_NP_); + if (patmatch(pattern, "$_DFF_NN0_")) found_match = true, direct_dict[ID($_DFF_NN0_)] = ID($__DFFE_NN0); + if (patmatch(pattern, "$_DFF_NN1_")) found_match = true, direct_dict[ID($_DFF_NN1_)] = ID($__DFFE_NN1); + if (patmatch(pattern, "$_DFF_NP0_")) found_match = true, direct_dict[ID($_DFF_NP0_)] = ID($__DFFE_NP0); + if (patmatch(pattern, "$_DFF_NP1_")) found_match = true, direct_dict[ID($_DFF_NP1_)] = ID($__DFFE_NP1); + if (patmatch(pattern, "$_DFF_PN0_")) found_match = true, direct_dict[ID($_DFF_PN0_)] = ID($__DFFE_PN0); + if (patmatch(pattern, "$_DFF_PN1_")) found_match = true, direct_dict[ID($_DFF_PN1_)] = ID($__DFFE_PN1); + if (patmatch(pattern, "$_DFF_PP0_")) found_match = true, direct_dict[ID($_DFF_PP0_)] = ID($__DFFE_PP0); + if (patmatch(pattern, "$_DFF_PP1_")) found_match = true, direct_dict[ID($_DFF_PP1_)] = ID($__DFFE_PP1); + + if (patmatch(pattern, "$__DFFS_NN0_")) found_match = true, direct_dict[ID($__DFFS_NN0_)] = ID($__DFFSE_NN0); + if (patmatch(pattern, "$__DFFS_NN1_")) found_match = true, direct_dict[ID($__DFFS_NN1_)] = ID($__DFFSE_NN1); + if (patmatch(pattern, "$__DFFS_NP0_")) found_match = true, direct_dict[ID($__DFFS_NP0_)] = ID($__DFFSE_NP0); + if (patmatch(pattern, "$__DFFS_NP1_")) found_match = true, direct_dict[ID($__DFFS_NP1_)] = ID($__DFFSE_NP1); + if (patmatch(pattern, "$__DFFS_PN0_")) found_match = true, direct_dict[ID($__DFFS_PN0_)] = ID($__DFFSE_PN0); + if (patmatch(pattern, "$__DFFS_PN1_")) found_match = true, direct_dict[ID($__DFFS_PN1_)] = ID($__DFFSE_PN1); + if (patmatch(pattern, "$__DFFS_PP0_")) found_match = true, direct_dict[ID($__DFFS_PP0_)] = ID($__DFFSE_PP0); + if (patmatch(pattern, "$__DFFS_PP1_")) found_match = true, direct_dict[ID($__DFFS_PP1_)] = ID($__DFFSE_PP1); if (!found_match) log_cmd_error("No cell types matched pattern '%s'.\n", pattern); continue; @@ -333,26 +353,51 @@ struct Dff2dffePass : public Pass { if (!mod->has_processes_warn()) { if (unmap_mode) { + SigMap sigmap(mod); for (auto cell : mod->selected_cells()) { - if (cell->type == "$dffe") { - RTLIL::SigSpec tmp = mod->addWire(NEW_ID, GetSize(cell->getPort("\\D"))); - mod->addDff(NEW_ID, cell->getPort("\\CLK"), tmp, cell->getPort("\\Q"), cell->getParam("\\CLK_POLARITY").as_bool()); - if (cell->getParam("\\EN_POLARITY").as_bool()) - mod->addMux(NEW_ID, cell->getPort("\\Q"), cell->getPort("\\D"), cell->getPort("\\EN"), tmp); + if (cell->type == ID($dffe)) { + if (min_ce_use >= 0) { + int ce_use = 0; + for (auto cell_other : mod->selected_cells()) { + if (cell_other->type != cell->type) + continue; + if (sigmap(cell->getPort(ID(EN))) == sigmap(cell_other->getPort(ID(EN)))) + ce_use++; + } + if (ce_use >= min_ce_use) + continue; + } + + RTLIL::SigSpec tmp = mod->addWire(NEW_ID, GetSize(cell->getPort(ID(D)))); + mod->addDff(NEW_ID, cell->getPort(ID(CLK)), tmp, cell->getPort(ID(Q)), cell->getParam(ID(CLK_POLARITY)).as_bool()); + if (cell->getParam(ID(EN_POLARITY)).as_bool()) + mod->addMux(NEW_ID, cell->getPort(ID(Q)), cell->getPort(ID(D)), cell->getPort(ID(EN)), tmp); else - mod->addMux(NEW_ID, cell->getPort("\\D"), cell->getPort("\\Q"), cell->getPort("\\EN"), tmp); + mod->addMux(NEW_ID, cell->getPort(ID(D)), cell->getPort(ID(Q)), cell->getPort(ID(EN)), tmp); mod->remove(cell); continue; } - if (cell->type.substr(0, 7) == "$_DFFE_") { - bool clk_pol = cell->type.substr(7, 1) == "P"; - bool en_pol = cell->type.substr(8, 1) == "P"; + if (cell->type.begins_with("$_DFFE_")) { + if (min_ce_use >= 0) { + int ce_use = 0; + for (auto cell_other : mod->selected_cells()) { + if (cell_other->type != cell->type) + continue; + if (sigmap(cell->getPort(ID(E))) == sigmap(cell_other->getPort(ID(E)))) + ce_use++; + } + if (ce_use >= min_ce_use) + continue; + } + + bool clk_pol = cell->type.compare(7, 1, "P") == 0; + bool en_pol = cell->type.compare(8, 1, "P") == 0; RTLIL::SigSpec tmp = mod->addWire(NEW_ID); - mod->addDff(NEW_ID, cell->getPort("\\C"), tmp, cell->getPort("\\Q"), clk_pol); + mod->addDff(NEW_ID, cell->getPort(ID(C)), tmp, cell->getPort(ID(Q)), clk_pol); if (en_pol) - mod->addMux(NEW_ID, cell->getPort("\\Q"), cell->getPort("\\D"), cell->getPort("\\E"), tmp); + mod->addMux(NEW_ID, cell->getPort(ID(Q)), cell->getPort(ID(D)), cell->getPort(ID(E)), tmp); else - mod->addMux(NEW_ID, cell->getPort("\\D"), cell->getPort("\\Q"), cell->getPort("\\E"), tmp); + mod->addMux(NEW_ID, cell->getPort(ID(D)), cell->getPort(ID(Q)), cell->getPort(ID(E)), tmp); mod->remove(cell); continue; } diff --git a/passes/techmap/dff2dffs.cc b/passes/techmap/dff2dffs.cc new file mode 100644 index 000000000..3fa1ed5cf --- /dev/null +++ b/passes/techmap/dff2dffs.cc @@ -0,0 +1,165 @@ +/* + * yosys -- Yosys Open SYnthesis Suite + * + * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at> + * Copyright (C) 2018 David Shah <dave@ds0.me> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#include "kernel/yosys.h" +#include "kernel/sigtools.h" + +USING_YOSYS_NAMESPACE +PRIVATE_NAMESPACE_BEGIN + +struct Dff2dffsPass : public Pass { + Dff2dffsPass() : Pass("dff2dffs", "process sync set/reset with SR over CE priority") { } + void help() YS_OVERRIDE + { + log("\n"); + log(" dff2dffs [options] [selection]\n"); + log("\n"); + log("Merge synchronous set/reset $_MUX_ cells to create $__DFFS_[NP][NP][01], to be run before\n"); + log("dff2dffe for SR over CE priority.\n"); + log("\n"); + log(" -match-init\n"); + log(" Disallow merging synchronous set/reset that has polarity opposite of the\n"); + log(" output wire's init attribute (if any).\n"); + log("\n"); + } + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE + { + log_header(design, "Executing dff2dffs pass (merge synchronous set/reset into FF cells).\n"); + + bool match_init = false; + size_t argidx; + for (argidx = 1; argidx < args.size(); argidx++) + { + // if (args[argidx] == "-singleton") { + // singleton_mode = true; + // continue; + // } + if (args[argidx] == "-match-init") { + match_init = true; + continue; + } + break; + } + extra_args(args, argidx, design); + + pool<IdString> dff_types; + dff_types.insert(ID($_DFF_N_)); + dff_types.insert(ID($_DFF_P_)); + + for (auto module : design->selected_modules()) + { + log("Merging set/reset $_MUX_ cells into DFFs in %s.\n", log_id(module)); + + SigMap sigmap(module); + dict<SigBit, Cell*> sr_muxes; + vector<Cell*> ff_cells; + + for (auto cell : module->selected_cells()) + { + if (dff_types.count(cell->type)) { + ff_cells.push_back(cell); + continue; + } + + if (cell->type != ID($_MUX_)) + continue; + + SigBit bit_a = sigmap(cell->getPort(ID::A)); + SigBit bit_b = sigmap(cell->getPort(ID::B)); + + if (bit_a.wire == nullptr || bit_b.wire == nullptr) + sr_muxes[sigmap(cell->getPort(ID::Y))] = cell; + } + + for (auto cell : ff_cells) + { + SigSpec sig_d = cell->getPort(ID(D)); + + if (GetSize(sig_d) < 1) + continue; + + SigBit bit_d = sigmap(sig_d[0]); + + if (sr_muxes.count(bit_d) == 0) + continue; + + Cell *mux_cell = sr_muxes.at(bit_d); + SigBit bit_a = sigmap(mux_cell->getPort(ID::A)); + SigBit bit_b = sigmap(mux_cell->getPort(ID::B)); + SigBit bit_s = sigmap(mux_cell->getPort(ID(S))); + + SigBit sr_val, sr_sig; + bool invert_sr; + sr_sig = bit_s; + if (bit_a.wire == nullptr) { + bit_d = bit_b; + sr_val = bit_a; + invert_sr = true; + } else { + log_assert(bit_b.wire == nullptr); + bit_d = bit_a; + sr_val = bit_b; + invert_sr = false; + } + + if (match_init) { + SigBit bit_q = cell->getPort(ID(Q)); + if (bit_q.wire) { + auto it = bit_q.wire->attributes.find(ID(init)); + if (it != bit_q.wire->attributes.end()) { + auto init_val = it->second[bit_q.offset]; + if (init_val == State::S1 && sr_val != State::S1) + continue; + if (init_val == State::S0 && sr_val != State::S0) + continue; + } + } + } + + log(" Merging %s (A=%s, B=%s, S=%s) into %s (%s).\n", log_id(mux_cell), + log_signal(bit_a), log_signal(bit_b), log_signal(bit_s), log_id(cell), log_id(cell->type)); + + if (sr_val == State::S1) { + if (cell->type == ID($_DFF_N_)) { + if (invert_sr) cell->type = ID($__DFFS_NN1_); + else cell->type = ID($__DFFS_NP1_); + } else { + log_assert(cell->type == ID($_DFF_P_)); + if (invert_sr) cell->type = ID($__DFFS_PN1_); + else cell->type = ID($__DFFS_PP1_); + } + } else { + if (cell->type == ID($_DFF_N_)) { + if (invert_sr) cell->type = ID($__DFFS_NN0_); + else cell->type = ID($__DFFS_NP0_); + } else { + log_assert(cell->type == ID($_DFF_P_)); + if (invert_sr) cell->type = ID($__DFFS_PN0_); + else cell->type = ID($__DFFS_PP0_); + } + } + cell->setPort(ID(R), sr_sig); + cell->setPort(ID(D), bit_d); + } + } + } +} Dff2dffsPass; + +PRIVATE_NAMESPACE_END diff --git a/passes/techmap/dffinit.cc b/passes/techmap/dffinit.cc index d737b3424..cf9301442 100644 --- a/passes/techmap/dffinit.cc +++ b/passes/techmap/dffinit.cc @@ -25,7 +25,7 @@ PRIVATE_NAMESPACE_BEGIN struct DffinitPass : public Pass { DffinitPass() : Pass("dffinit", "set INIT param on FF cells") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -38,15 +38,44 @@ struct DffinitPass : public Pass { log(" operate on the specified cell type. this option can be used\n"); log(" multiple times.\n"); log("\n"); + log(" -highlow\n"); + log(" use the string values \"high\" and \"low\" to represent a single-bit\n"); + log(" initial value of 1 or 0. (multi-bit values are not supported in this\n"); + log(" mode.)\n"); + log("\n"); + log(" -strinit <string for high> <string for low> \n"); + log(" use string values in the command line to represent a single-bit\n"); + log(" initial value of 1 or 0. (multi-bit values are not supported in this\n"); + log(" mode.)\n"); + log("\n"); + log(" -noreinit\n"); + log(" fail if the FF cell has already a defined initial value set in other\n"); + log(" passes and the initial value of the net it drives is not equal to\n"); + log(" the already defined initial value.\n"); + log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing DFFINIT pass (set INIT param on FF cells).\n"); dict<IdString, dict<IdString, IdString>> ff_types; + bool highlow_mode = false, noreinit = false; + std::string high_string, low_string; size_t argidx; for (argidx = 1; argidx < args.size(); argidx++) { + if (args[argidx] == "-highlow") { + highlow_mode = true; + high_string = "high"; + low_string = "low"; + continue; + } + if (args[argidx] == "-strinit" && argidx+2 < args.size()) { + highlow_mode = true; + high_string = args[++argidx]; + low_string = args[++argidx]; + continue; + } if (args[argidx] == "-ff" && argidx+3 < args.size()) { IdString cell_name = RTLIL::escape_id(args[++argidx]); IdString output_port = RTLIL::escape_id(args[++argidx]); @@ -54,6 +83,10 @@ struct DffinitPass : public Pass { ff_types[cell_name][output_port] = init_param; continue; } + if (args[argidx] == "-noreinit") { + noreinit = true; + continue; + } break; } extra_args(args, argidx, design); @@ -66,10 +99,11 @@ struct DffinitPass : public Pass { pool<SigBit> used_bits; for (auto wire : module->selected_wires()) { - if (wire->attributes.count("\\init")) { - Const value = wire->attributes.at("\\init"); + if (wire->attributes.count(ID(init))) { + Const value = wire->attributes.at(ID(init)); for (int i = 0; i < min(GetSize(value), GetSize(wire)); i++) - init_bits[sigmap(SigBit(wire, i))] = value[i]; + if (value[i] != State::Sx) + init_bits[sigmap(SigBit(wire, i))] = value[i]; } if (wire->port_output) for (auto bit : sigmap(wire)) @@ -102,10 +136,24 @@ struct DffinitPass : public Pass { continue; while (GetSize(value.bits) <= i) value.bits.push_back(State::S0); + if (noreinit && value.bits[i] != State::Sx && value.bits[i] != init_bits.at(sig[i])) + log_error("Trying to assign a different init value for %s.%s.%s which technically " + "have a conflicted init value.\n", + log_id(module), log_id(cell), log_id(it.second)); value.bits[i] = init_bits.at(sig[i]); cleanup_bits.insert(sig[i]); } + if (highlow_mode && GetSize(value) != 0) { + if (GetSize(value) != 1) + log_error("Multi-bit init value for %s.%s.%s is incompatible with -highlow mode.\n", + log_id(module), log_id(cell), log_id(it.second)); + if (value[0] == State::S1) + value = Const(high_string); + else + value = Const(low_string); + } + log("Setting %s.%s.%s (port=%s, net=%s) to %s.\n", log_id(module), log_id(cell), log_id(it.second), log_id(it.first), log_signal(sig), log_signal(value)); cell->setParam(it.second, value); @@ -113,8 +161,8 @@ struct DffinitPass : public Pass { } for (auto wire : module->selected_wires()) - if (wire->attributes.count("\\init")) { - Const &value = wire->attributes.at("\\init"); + if (wire->attributes.count(ID(init))) { + Const &value = wire->attributes.at(ID(init)); bool do_cleanup = true; for (int i = 0; i < min(GetSize(value), GetSize(wire)); i++) { SigBit bit = sigmap(SigBit(wire, i)); @@ -125,7 +173,7 @@ struct DffinitPass : public Pass { } if (do_cleanup) { log("Removing init attribute from wire %s.%s.\n", log_id(module), log_id(wire)); - wire->attributes.erase("\\init"); + wire->attributes.erase(ID(init)); } } } diff --git a/passes/techmap/dfflibmap.cc b/passes/techmap/dfflibmap.cc index 4cb1489a8..b15109cd3 100644 --- a/passes/techmap/dfflibmap.cc +++ b/passes/techmap/dfflibmap.cc @@ -27,12 +27,12 @@ USING_YOSYS_NAMESPACE PRIVATE_NAMESPACE_BEGIN struct cell_mapping { - std::string cell_name; + IdString cell_name; std::map<std::string, char> ports; }; static std::map<RTLIL::IdString, cell_mapping> cell_mappings; -static void logmap(std::string dff) +static void logmap(IdString dff) { if (cell_mappings.count(dff) == 0) { log(" unmapped dff cell: %s\n", dff.c_str()); @@ -54,26 +54,26 @@ static void logmap(std::string dff) static void logmap_all() { - logmap("$_DFF_N_"); - logmap("$_DFF_P_"); - - logmap("$_DFF_NN0_"); - logmap("$_DFF_NN1_"); - logmap("$_DFF_NP0_"); - logmap("$_DFF_NP1_"); - logmap("$_DFF_PN0_"); - logmap("$_DFF_PN1_"); - logmap("$_DFF_PP0_"); - logmap("$_DFF_PP1_"); - - logmap("$_DFFSR_NNN_"); - logmap("$_DFFSR_NNP_"); - logmap("$_DFFSR_NPN_"); - logmap("$_DFFSR_NPP_"); - logmap("$_DFFSR_PNN_"); - logmap("$_DFFSR_PNP_"); - logmap("$_DFFSR_PPN_"); - logmap("$_DFFSR_PPP_"); + logmap(ID($_DFF_N_)); + logmap(ID($_DFF_P_)); + + logmap(ID($_DFF_NN0_)); + logmap(ID($_DFF_NN1_)); + logmap(ID($_DFF_NP0_)); + logmap(ID($_DFF_NP1_)); + logmap(ID($_DFF_PN0_)); + logmap(ID($_DFF_PN1_)); + logmap(ID($_DFF_PP0_)); + logmap(ID($_DFF_PP1_)); + + logmap(ID($_DFFSR_NNN_)); + logmap(ID($_DFFSR_NNP_)); + logmap(ID($_DFFSR_NPN_)); + logmap(ID($_DFFSR_NPP_)); + logmap(ID($_DFFSR_PNN_)); + logmap(ID($_DFFSR_PNP_)); + logmap(ID($_DFFSR_PPN_)); + logmap(ID($_DFFSR_PPP_)); } static bool parse_pin(LibertyAst *cell, LibertyAst *attr, std::string &pin_name, bool &pin_pol) @@ -100,10 +100,22 @@ static bool parse_pin(LibertyAst *cell, LibertyAst *attr, std::string &pin_name, for (auto child : cell->children) if (child->id == "pin" && child->args.size() == 1 && child->args[0] == pin_name) return true; + + /* If we end up here, the pin specified in the attribute does not exist, which is an error, + or, the attribute contains an expression which we do not yet support. + For now, we'll simply produce a warning to let the user know something is up. + */ + if (pin_name.find_first_of("^*|&") == std::string::npos) { + log_warning("Malformed liberty file - cannot find pin '%s' in cell '%s' - skipping.\n", pin_name.c_str(), cell->args[0].c_str()); + } + else { + log_warning("Found unsupported expression '%s' in pin attribute of cell '%s' - skipping.\n", pin_name.c_str(), cell->args[0].c_str()); + } + return false; } -static void find_cell(LibertyAst *ast, std::string cell_type, bool clkpol, bool has_reset, bool rstpol, bool rstval, bool prepare_mode) +static void find_cell(LibertyAst *ast, IdString cell_type, bool clkpol, bool has_reset, bool rstpol, bool rstval, bool prepare_mode) { LibertyAst *best_cell = NULL; std::map<std::string, char> best_cell_ports; @@ -218,13 +230,13 @@ static void find_cell(LibertyAst *ast, std::string cell_type, bool clkpol, bool cell_mappings[cell_type].ports["D"] = 'D'; cell_mappings[cell_type].ports["Q"] = 'Q'; } else { - cell_mappings[cell_type].cell_name = best_cell->args[0]; + cell_mappings[cell_type].cell_name = RTLIL::escape_id(best_cell->args[0]); cell_mappings[cell_type].ports = best_cell_ports; } } } -static void find_cell_sr(LibertyAst *ast, std::string cell_type, bool clkpol, bool setpol, bool clrpol, bool prepare_mode) +static void find_cell_sr(LibertyAst *ast, IdString cell_type, bool clkpol, bool setpol, bool clrpol, bool prepare_mode) { LibertyAst *best_cell = NULL; std::map<std::string, char> best_cell_ports; @@ -240,6 +252,10 @@ static void find_cell_sr(LibertyAst *ast, std::string cell_type, bool clkpol, bo if (cell->id != "cell" || cell->args.size() != 1) continue; + LibertyAst *dn = cell->find("dont_use"); + if (dn != NULL && dn->value == "true") + continue; + LibertyAst *ff = cell->find("ff"); if (ff == NULL) continue; @@ -331,7 +347,7 @@ static void find_cell_sr(LibertyAst *ast, std::string cell_type, bool clkpol, bo cell_mappings[cell_type].ports["D"] = 'D'; cell_mappings[cell_type].ports["Q"] = 'Q'; } else { - cell_mappings[cell_type].cell_name = best_cell->args[0]; + cell_mappings[cell_type].cell_name = RTLIL::escape_id(best_cell->args[0]); cell_mappings[cell_type].ports = best_cell_ports; } } @@ -388,7 +404,7 @@ static bool expand_cellmap(std::string pattern, std::string inv) return return_status; } -static void map_sr_to_arst(const char *from, const char *to) +static void map_sr_to_arst(IdString from, IdString to) { if (!cell_mappings.count(from) || cell_mappings.count(to) > 0) return; @@ -403,7 +419,7 @@ static void map_sr_to_arst(const char *from, const char *to) log_assert(from_clk_pol == to_clk_pol); log_assert(to_rst_pol == from_set_pol && to_rst_pol == from_clr_pol); - log(" create mapping for %s from mapping for %s.\n", to, from); + log(" create mapping for %s from mapping for %s.\n", to.c_str(), from.c_str()); cell_mappings[to].cell_name = cell_mappings[from].cell_name; cell_mappings[to].ports = cell_mappings[from].ports; @@ -434,7 +450,7 @@ static void map_sr_to_arst(const char *from, const char *to) } } -static void map_adff_to_dff(const char *from, const char *to) +static void map_adff_to_dff(IdString from, IdString to) { if (!cell_mappings.count(from) || cell_mappings.count(to) > 0) return; @@ -445,7 +461,7 @@ static void map_adff_to_dff(const char *from, const char *to) log_assert(from_clk_pol == to_clk_pol); - log(" create mapping for %s from mapping for %s.\n", to, from); + log(" create mapping for %s from mapping for %s.\n", to.c_str(), from.c_str()); cell_mappings[to].cell_name = cell_mappings[from].cell_name; cell_mappings[to].ports = cell_mappings[from].ports; @@ -468,8 +484,8 @@ static void dfflibmap(RTLIL::Design *design, RTLIL::Module *module, bool prepare for (auto &it : module->cells_) { if (design->selected(module, it.second) && cell_mappings.count(it.second->type) > 0) cell_list.push_back(it.second); - if (it.second->type == "$_NOT_") - notmap[sigmap(it.second->getPort("\\A"))].insert(it.second); + if (it.second->type == ID($_NOT_)) + notmap[sigmap(it.second->getPort(ID::A))].insert(it.second); } std::map<std::string, int> stats; @@ -483,7 +499,7 @@ static void dfflibmap(RTLIL::Design *design, RTLIL::Module *module, bool prepare module->remove(cell); cell_mapping &cm = cell_mappings[cell_type]; - RTLIL::Cell *new_cell = module->addCell(cell_name, prepare_mode ? cm.cell_name : "\\" + cm.cell_name); + RTLIL::Cell *new_cell = module->addCell(cell_name, prepare_mode ? cm.cell_name : cm.cell_name); new_cell->set_src_attribute(src); @@ -503,8 +519,8 @@ static void dfflibmap(RTLIL::Design *design, RTLIL::Module *module, bool prepare sig = module->addWire(NEW_ID, GetSize(old_sig)); if (has_q && has_qn) { for (auto &it : notmap[sigmap(old_sig)]) { - module->connect(it->getPort("\\Y"), sig); - it->setPort("\\Y", module->addWire(NEW_ID, GetSize(old_sig))); + module->connect(it->getPort(ID::Y), sig); + it->setPort(ID::Y, module->addWire(NEW_ID, GetSize(old_sig))); } } else { module->addNotGate(NEW_ID, sig, old_sig); @@ -533,7 +549,7 @@ static void dfflibmap(RTLIL::Design *design, RTLIL::Module *module, bool prepare struct DfflibmapPass : public Pass { DfflibmapPass() : Pass("dfflibmap", "technology mapping of flip-flops") { } - virtual void help() + void help() YS_OVERRIDE { log("\n"); log(" dfflibmap [-prepare] -liberty <file> [selection]\n"); @@ -549,7 +565,7 @@ struct DfflibmapPass : public Pass { log("liberty file.\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing DFFLIBMAP pass (mapping DFF cells to sequential cells from liberty file).\n"); @@ -583,26 +599,26 @@ struct DfflibmapPass : public Pass { LibertyParser libparser(f); f.close(); - find_cell(libparser.ast, "$_DFF_N_", false, false, false, false, prepare_mode); - find_cell(libparser.ast, "$_DFF_P_", true, false, false, false, prepare_mode); - - find_cell(libparser.ast, "$_DFF_NN0_", false, true, false, false, prepare_mode); - find_cell(libparser.ast, "$_DFF_NN1_", false, true, false, true, prepare_mode); - find_cell(libparser.ast, "$_DFF_NP0_", false, true, true, false, prepare_mode); - find_cell(libparser.ast, "$_DFF_NP1_", false, true, true, true, prepare_mode); - find_cell(libparser.ast, "$_DFF_PN0_", true, true, false, false, prepare_mode); - find_cell(libparser.ast, "$_DFF_PN1_", true, true, false, true, prepare_mode); - find_cell(libparser.ast, "$_DFF_PP0_", true, true, true, false, prepare_mode); - find_cell(libparser.ast, "$_DFF_PP1_", true, true, true, true, prepare_mode); - - find_cell_sr(libparser.ast, "$_DFFSR_NNN_", false, false, false, prepare_mode); - find_cell_sr(libparser.ast, "$_DFFSR_NNP_", false, false, true, prepare_mode); - find_cell_sr(libparser.ast, "$_DFFSR_NPN_", false, true, false, prepare_mode); - find_cell_sr(libparser.ast, "$_DFFSR_NPP_", false, true, true, prepare_mode); - find_cell_sr(libparser.ast, "$_DFFSR_PNN_", true, false, false, prepare_mode); - find_cell_sr(libparser.ast, "$_DFFSR_PNP_", true, false, true, prepare_mode); - find_cell_sr(libparser.ast, "$_DFFSR_PPN_", true, true, false, prepare_mode); - find_cell_sr(libparser.ast, "$_DFFSR_PPP_", true, true, true, prepare_mode); + find_cell(libparser.ast, ID($_DFF_N_), false, false, false, false, prepare_mode); + find_cell(libparser.ast, ID($_DFF_P_), true, false, false, false, prepare_mode); + + find_cell(libparser.ast, ID($_DFF_NN0_), false, true, false, false, prepare_mode); + find_cell(libparser.ast, ID($_DFF_NN1_), false, true, false, true, prepare_mode); + find_cell(libparser.ast, ID($_DFF_NP0_), false, true, true, false, prepare_mode); + find_cell(libparser.ast, ID($_DFF_NP1_), false, true, true, true, prepare_mode); + find_cell(libparser.ast, ID($_DFF_PN0_), true, true, false, false, prepare_mode); + find_cell(libparser.ast, ID($_DFF_PN1_), true, true, false, true, prepare_mode); + find_cell(libparser.ast, ID($_DFF_PP0_), true, true, true, false, prepare_mode); + find_cell(libparser.ast, ID($_DFF_PP1_), true, true, true, true, prepare_mode); + + find_cell_sr(libparser.ast, ID($_DFFSR_NNN_), false, false, false, prepare_mode); + find_cell_sr(libparser.ast, ID($_DFFSR_NNP_), false, false, true, prepare_mode); + find_cell_sr(libparser.ast, ID($_DFFSR_NPN_), false, true, false, prepare_mode); + find_cell_sr(libparser.ast, ID($_DFFSR_NPP_), false, true, true, prepare_mode); + find_cell_sr(libparser.ast, ID($_DFFSR_PNN_), true, false, false, prepare_mode); + find_cell_sr(libparser.ast, ID($_DFFSR_PNP_), true, false, true, prepare_mode); + find_cell_sr(libparser.ast, ID($_DFFSR_PPN_), true, true, false, prepare_mode); + find_cell_sr(libparser.ast, ID($_DFFSR_PPP_), true, true, true, prepare_mode); // try to implement as many cells as possible just by inverting // the SET and RESET pins. If necessary, implement cell types @@ -626,29 +642,29 @@ struct DfflibmapPass : public Pass { break; } - map_sr_to_arst("$_DFFSR_NNN_", "$_DFF_NN0_"); - map_sr_to_arst("$_DFFSR_NNN_", "$_DFF_NN1_"); - map_sr_to_arst("$_DFFSR_NPP_", "$_DFF_NP0_"); - map_sr_to_arst("$_DFFSR_NPP_", "$_DFF_NP1_"); - map_sr_to_arst("$_DFFSR_PNN_", "$_DFF_PN0_"); - map_sr_to_arst("$_DFFSR_PNN_", "$_DFF_PN1_"); - map_sr_to_arst("$_DFFSR_PPP_", "$_DFF_PP0_"); - map_sr_to_arst("$_DFFSR_PPP_", "$_DFF_PP1_"); - - map_adff_to_dff("$_DFF_NN0_", "$_DFF_N_"); - map_adff_to_dff("$_DFF_NN1_", "$_DFF_N_"); - map_adff_to_dff("$_DFF_NP0_", "$_DFF_N_"); - map_adff_to_dff("$_DFF_NP1_", "$_DFF_N_"); - map_adff_to_dff("$_DFF_PN0_", "$_DFF_P_"); - map_adff_to_dff("$_DFF_PN1_", "$_DFF_P_"); - map_adff_to_dff("$_DFF_PP0_", "$_DFF_P_"); - map_adff_to_dff("$_DFF_PP1_", "$_DFF_P_"); - - log(" final dff cell mappings:\n"); - logmap_all(); + map_sr_to_arst(ID($_DFFSR_NNN_), ID($_DFF_NN0_)); + map_sr_to_arst(ID($_DFFSR_NNN_), ID($_DFF_NN1_)); + map_sr_to_arst(ID($_DFFSR_NPP_), ID($_DFF_NP0_)); + map_sr_to_arst(ID($_DFFSR_NPP_), ID($_DFF_NP1_)); + map_sr_to_arst(ID($_DFFSR_PNN_), ID($_DFF_PN0_)); + map_sr_to_arst(ID($_DFFSR_PNN_), ID($_DFF_PN1_)); + map_sr_to_arst(ID($_DFFSR_PPP_), ID($_DFF_PP0_)); + map_sr_to_arst(ID($_DFFSR_PPP_), ID($_DFF_PP1_)); + + map_adff_to_dff(ID($_DFF_NN0_), ID($_DFF_N_)); + map_adff_to_dff(ID($_DFF_NN1_), ID($_DFF_N_)); + map_adff_to_dff(ID($_DFF_NP0_), ID($_DFF_N_)); + map_adff_to_dff(ID($_DFF_NP1_), ID($_DFF_N_)); + map_adff_to_dff(ID($_DFF_PN0_), ID($_DFF_P_)); + map_adff_to_dff(ID($_DFF_PN1_), ID($_DFF_P_)); + map_adff_to_dff(ID($_DFF_PP0_), ID($_DFF_P_)); + map_adff_to_dff(ID($_DFF_PP1_), ID($_DFF_P_)); + + log(" final dff cell mappings:\n"); + logmap_all(); for (auto &it : design->modules_) - if (design->selected(it.second) && !it.second->get_bool_attribute("\\blackbox")) + if (design->selected(it.second) && !it.second->get_blackbox_attribute()) dfflibmap(design, it.second, prepare_mode); cell_mappings.clear(); diff --git a/passes/techmap/dffsr2dff.cc b/passes/techmap/dffsr2dff.cc index 0d4d53627..61b06fdc1 100644 --- a/passes/techmap/dffsr2dff.cc +++ b/passes/techmap/dffsr2dff.cc @@ -25,17 +25,17 @@ PRIVATE_NAMESPACE_BEGIN void dffsr_worker(SigMap &sigmap, Module *module, Cell *cell) { - if (cell->type == "$dffsr") + if (cell->type == ID($dffsr)) { - int width = cell->getParam("\\WIDTH").as_int(); - bool setpol = cell->getParam("\\SET_POLARITY").as_bool(); - bool clrpol = cell->getParam("\\CLR_POLARITY").as_bool(); + int width = cell->getParam(ID(WIDTH)).as_int(); + bool setpol = cell->getParam(ID(SET_POLARITY)).as_bool(); + bool clrpol = cell->getParam(ID(CLR_POLARITY)).as_bool(); SigBit setunused = setpol ? State::S0 : State::S1; SigBit clrunused = clrpol ? State::S0 : State::S1; - SigSpec setsig = sigmap(cell->getPort("\\SET")); - SigSpec clrsig = sigmap(cell->getPort("\\CLR")); + SigSpec setsig = sigmap(cell->getPort(ID(SET))); + SigSpec clrsig = sigmap(cell->getPort(ID(CLR))); Const reset_val; SigSpec setctrl, clrctrl; @@ -78,32 +78,32 @@ void dffsr_worker(SigMap &sigmap, Module *module, Cell *cell) log("Converting %s cell %s.%s to $adff.\n", log_id(cell->type), log_id(module), log_id(cell)); if (GetSize(setctrl) == 1) { - cell->setPort("\\ARST", setctrl); - cell->setParam("\\ARST_POLARITY", setpol); + cell->setPort(ID(ARST), setctrl); + cell->setParam(ID(ARST_POLARITY), setpol); } else { - cell->setPort("\\ARST", clrctrl); - cell->setParam("\\ARST_POLARITY", clrpol); + cell->setPort(ID(ARST), clrctrl); + cell->setParam(ID(ARST_POLARITY), clrpol); } - cell->type = "$adff"; - cell->unsetPort("\\SET"); - cell->unsetPort("\\CLR"); - cell->setParam("\\ARST_VALUE", reset_val); - cell->unsetParam("\\SET_POLARITY"); - cell->unsetParam("\\CLR_POLARITY"); + cell->type = ID($adff); + cell->unsetPort(ID(SET)); + cell->unsetPort(ID(CLR)); + cell->setParam(ID(ARST_VALUE), reset_val); + cell->unsetParam(ID(SET_POLARITY)); + cell->unsetParam(ID(CLR_POLARITY)); return; } - if (cell->type.in("$_DFFSR_NNN_", "$_DFFSR_NNP_", "$_DFFSR_NPN_", "$_DFFSR_NPP_", - "$_DFFSR_PNN_", "$_DFFSR_PNP_", "$_DFFSR_PPN_", "$_DFFSR_PPP_")) + if (cell->type.in(ID($_DFFSR_NNN_), ID($_DFFSR_NNP_), ID($_DFFSR_NPN_), ID($_DFFSR_NPP_), + ID($_DFFSR_PNN_), ID($_DFFSR_PNP_), ID($_DFFSR_PPN_), ID($_DFFSR_PPP_))) { char clkpol = cell->type.c_str()[8]; char setpol = cell->type.c_str()[9]; char clrpol = cell->type.c_str()[10]; - SigBit setbit = sigmap(cell->getPort("\\S")); - SigBit clrbit = sigmap(cell->getPort("\\R")); + SigBit setbit = sigmap(cell->getPort(ID(S))); + SigBit clrbit = sigmap(cell->getPort(ID(R))); SigBit setunused = setpol == 'P' ? State::S0 : State::S1; SigBit clrunused = clrpol == 'P' ? State::S0 : State::S1; @@ -112,14 +112,14 @@ void dffsr_worker(SigMap &sigmap, Module *module, Cell *cell) if (setbit == setunused) { cell->type = stringf("$_DFF_%c%c0_", clkpol, clrpol); - cell->unsetPort("\\S"); + cell->unsetPort(ID(S)); goto converted_gate; } if (clrbit == clrunused) { cell->type = stringf("$_DFF_%c%c1_", clkpol, setpol); - cell->setPort("\\R", cell->getPort("\\S")); - cell->unsetPort("\\S"); + cell->setPort(ID(R), cell->getPort(ID(S))); + cell->unsetPort(ID(S)); goto converted_gate; } @@ -133,32 +133,32 @@ void dffsr_worker(SigMap &sigmap, Module *module, Cell *cell) void adff_worker(SigMap &sigmap, Module *module, Cell *cell) { - if (cell->type == "$adff") + if (cell->type == ID($adff)) { - bool rstpol = cell->getParam("\\ARST_POLARITY").as_bool(); + bool rstpol = cell->getParam(ID(ARST_POLARITY)).as_bool(); SigBit rstunused = rstpol ? State::S0 : State::S1; - SigSpec rstsig = sigmap(cell->getPort("\\ARST")); + SigSpec rstsig = sigmap(cell->getPort(ID(ARST))); if (rstsig != rstunused) return; log("Converting %s cell %s.%s to $dff.\n", log_id(cell->type), log_id(module), log_id(cell)); - cell->type = "$dff"; - cell->unsetPort("\\ARST"); - cell->unsetParam("\\ARST_VALUE"); - cell->unsetParam("\\ARST_POLARITY"); + cell->type = ID($dff); + cell->unsetPort(ID(ARST)); + cell->unsetParam(ID(ARST_VALUE)); + cell->unsetParam(ID(ARST_POLARITY)); return; } - if (cell->type.in("$_DFF_NN0_", "$_DFF_NN1_", "$_DFF_NP0_", "$_DFF_NP1_", - "$_DFF_PN0_", "$_DFF_PN1_", "$_DFF_PP0_", "$_DFF_PP1_")) + if (cell->type.in(ID($_DFF_NN0_), ID($_DFF_NN1_), ID($_DFF_NP0_), ID($_DFF_NP1_), + ID($_DFF_PN0_), ID($_DFF_PN1_), ID($_DFF_PP0_), ID($_DFF_PP1_))) { char clkpol = cell->type.c_str()[6]; char rstpol = cell->type.c_str()[7]; - SigBit rstbit = sigmap(cell->getPort("\\R")); + SigBit rstbit = sigmap(cell->getPort(ID(R))); SigBit rstunused = rstpol == 'P' ? State::S0 : State::S1; if (rstbit != rstunused) @@ -168,7 +168,7 @@ void adff_worker(SigMap &sigmap, Module *module, Cell *cell) log("Converting %s cell %s.%s to %s.\n", log_id(cell->type), log_id(module), log_id(cell), log_id(newtype)); cell->type = newtype; - cell->unsetPort("\\R"); + cell->unsetPort(ID(R)); return; } @@ -176,7 +176,7 @@ void adff_worker(SigMap &sigmap, Module *module, Cell *cell) struct Dffsr2dffPass : public Pass { Dffsr2dffPass() : Pass("dffsr2dff", "convert DFFSR cells to simpler FF cell types") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -186,7 +186,7 @@ struct Dffsr2dffPass : public Pass { log("$_DFF_???_) to simpler FF cell types when any of the set/reset inputs is unused.\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing DFFSR2DFF pass (mapping DFFSR cells to simpler FFs).\n"); diff --git a/passes/techmap/extract.cc b/passes/techmap/extract.cc index 71e29c60b..f8798eea5 100644 --- a/passes/techmap/extract.cc +++ b/passes/techmap/extract.cc @@ -54,40 +54,40 @@ public: RTLIL::Const unified_param(RTLIL::IdString cell_type, RTLIL::IdString param, RTLIL::Const value) { - if (cell_type.substr(0, 1) != "$" || cell_type.substr(0, 2) == "$_") + if (!cell_type.begins_with("$") || cell_type.begins_with("$_")) return value; #define param_bool(_n) if (param == _n) return value.as_bool(); - param_bool("\\ARST_POLARITY"); - param_bool("\\A_SIGNED"); - param_bool("\\B_SIGNED"); - param_bool("\\CLK_ENABLE"); - param_bool("\\CLK_POLARITY"); - param_bool("\\CLR_POLARITY"); - param_bool("\\EN_POLARITY"); - param_bool("\\SET_POLARITY"); - param_bool("\\TRANSPARENT"); + param_bool(ID(ARST_POLARITY)); + param_bool(ID(A_SIGNED)); + param_bool(ID(B_SIGNED)); + param_bool(ID(CLK_ENABLE)); + param_bool(ID(CLK_POLARITY)); + param_bool(ID(CLR_POLARITY)); + param_bool(ID(EN_POLARITY)); + param_bool(ID(SET_POLARITY)); + param_bool(ID(TRANSPARENT)); #undef param_bool #define param_int(_n) if (param == _n) return value.as_int(); - param_int("\\ABITS") - param_int("\\A_WIDTH") - param_int("\\B_WIDTH") - param_int("\\CTRL_IN_WIDTH") - param_int("\\CTRL_OUT_WIDTH") - param_int("\\OFFSET") - param_int("\\PRIORITY") - param_int("\\RD_PORTS") - param_int("\\SIZE") - param_int("\\STATE_BITS") - param_int("\\STATE_NUM") - param_int("\\STATE_NUM_LOG2") - param_int("\\STATE_RST") - param_int("\\S_WIDTH") - param_int("\\TRANS_NUM") - param_int("\\WIDTH") - param_int("\\WR_PORTS") - param_int("\\Y_WIDTH") + param_int(ID(ABITS)) + param_int(ID(A_WIDTH)) + param_int(ID(B_WIDTH)) + param_int(ID(CTRL_IN_WIDTH)) + param_int(ID(CTRL_OUT_WIDTH)) + param_int(ID(OFFSET)) + param_int(ID(PRIORITY)) + param_int(ID(RD_PORTS)) + param_int(ID(SIZE)) + param_int(ID(STATE_BITS)) + param_int(ID(STATE_NUM)) + param_int(ID(STATE_NUM_LOG2)) + param_int(ID(STATE_RST)) + param_int(ID(S_WIDTH)) + param_int(ID(TRANS_NUM)) + param_int(ID(WIDTH)) + param_int(ID(WR_PORTS)) + param_int(ID(Y_WIDTH)) #undef param_int return value; @@ -203,7 +203,7 @@ bool module2graph(SubCircuit::Graph &graph, RTLIL::Module *mod, bool constports, continue; std::string type = cell->type.str(); - if (sel == NULL && type.substr(0, 2) == "\\$") + if (sel == NULL && type.compare(0, 2, "\\$") == 0) type = type.substr(1); graph.createNode(cell->name.str(), type, (void*)cell); @@ -341,10 +341,10 @@ RTLIL::Cell *replace(RTLIL::Module *needle, RTLIL::Module *haystack, SubCircuit: bool compareSortNeedleList(RTLIL::Module *left, RTLIL::Module *right) { int left_idx = 0, right_idx = 0; - if (left->attributes.count("\\extract_order") > 0) - left_idx = left->attributes.at("\\extract_order").as_int(); - if (right->attributes.count("\\extract_order") > 0) - right_idx = right->attributes.at("\\extract_order").as_int(); + if (left->attributes.count(ID(extract_order)) > 0) + left_idx = left->attributes.at(ID(extract_order)).as_int(); + if (right->attributes.count(ID(extract_order)) > 0) + right_idx = right->attributes.at(ID(extract_order)).as_int(); if (left_idx != right_idx) return left_idx < right_idx; return left->name < right->name; @@ -352,7 +352,7 @@ bool compareSortNeedleList(RTLIL::Module *left, RTLIL::Module *right) struct ExtractPass : public Pass { ExtractPass() : Pass("extract", "find subcircuits and replace them with cells") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -440,7 +440,7 @@ struct ExtractPass : public Pass { log("See 'help techmap' for a pass that does the opposite thing.\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing EXTRACT pass (map subcircuits to cells).\n"); log_push(); @@ -594,7 +594,7 @@ struct ExtractPass : public Pass { map = new RTLIL::Design; for (auto &filename : map_filenames) { - if (filename.substr(0, 1) == "%") + if (filename.compare(0, 1, "%") == 0) { if (!saved_designs.count(filename.substr(1))) { delete map; @@ -613,10 +613,10 @@ struct ExtractPass : public Pass { delete map; log_cmd_error("Can't open map file `%s'.\n", filename.c_str()); } - Frontend::frontend_call(map, &f, filename, (filename.size() > 3 && filename.substr(filename.size()-3) == ".il") ? "ilang" : "verilog"); + Frontend::frontend_call(map, &f, filename, (filename.size() > 3 && filename.compare(filename.size()-3, std::string::npos, ".il") == 0 ? "ilang" : "verilog")); f.close(); - if (filename.size() <= 3 || filename.substr(filename.size()-3) != ".il") { + if (filename.size() <= 3 || filename.compare(filename.size()-3, std::string::npos, ".il") != 0) { Pass::call(map, "proc"); Pass::call(map, "opt_clean"); } diff --git a/passes/techmap/extract_counter.cc b/passes/techmap/extract_counter.cc index af0eb852a..17a99493d 100644 --- a/passes/techmap/extract_counter.cc +++ b/passes/techmap/extract_counter.cc @@ -120,71 +120,71 @@ int counter_tryextract( //A counter with less than 2 bits makes no sense //TODO: configurable min threshold - int a_width = cell->getParam("\\A_WIDTH").as_int(); + int a_width = cell->getParam(ID(A_WIDTH)).as_int(); extract.width = a_width; if( (a_width < 2) || (a_width > maxwidth) ) return 1; //Second input must be a single bit - int b_width = cell->getParam("\\B_WIDTH").as_int(); + int b_width = cell->getParam(ID(B_WIDTH)).as_int(); if(b_width != 1) return 2; //Both inputs must be unsigned, so don't extract anything with a signed input - bool a_sign = cell->getParam("\\A_SIGNED").as_bool(); - bool b_sign = cell->getParam("\\B_SIGNED").as_bool(); + bool a_sign = cell->getParam(ID(A_SIGNED)).as_bool(); + bool b_sign = cell->getParam(ID(B_SIGNED)).as_bool(); if(a_sign || b_sign) return 3; //To be a counter, one input of the ALU must be a constant 1 //TODO: can A or B be swapped in synthesized RTL or is B always the 1? - const RTLIL::SigSpec b_port = sigmap(cell->getPort("\\B")); + const RTLIL::SigSpec b_port = sigmap(cell->getPort(ID::B)); if(!b_port.is_fully_const() || (b_port.as_int() != 1) ) return 4; //BI and CI must be constant 1 as well - const RTLIL::SigSpec bi_port = sigmap(cell->getPort("\\BI")); + const RTLIL::SigSpec bi_port = sigmap(cell->getPort(ID(BI))); if(!bi_port.is_fully_const() || (bi_port.as_int() != 1) ) return 5; - const RTLIL::SigSpec ci_port = sigmap(cell->getPort("\\CI")); + const RTLIL::SigSpec ci_port = sigmap(cell->getPort(ID(CI))); if(!ci_port.is_fully_const() || (ci_port.as_int() != 1) ) return 6; //CO and X must be unconnected (exactly one connection to each port) - if(!is_unconnected(sigmap(cell->getPort("\\CO")), index)) + if(!is_unconnected(sigmap(cell->getPort(ID(CO))), index)) return 7; - if(!is_unconnected(sigmap(cell->getPort("\\X")), index)) + if(!is_unconnected(sigmap(cell->getPort(ID(X))), index)) return 8; //Y must have exactly one connection, and it has to be a $mux cell. //We must have a direct bus connection from our Y to their A. - const RTLIL::SigSpec aluy = sigmap(cell->getPort("\\Y")); + const RTLIL::SigSpec aluy = sigmap(cell->getPort(ID::Y)); pool<Cell*> y_loads = get_other_cells(aluy, index, cell); if(y_loads.size() != 1) return 9; Cell* count_mux = *y_loads.begin(); extract.count_mux = count_mux; - if(count_mux->type != "$mux") + if(count_mux->type != ID($mux)) return 10; - if(!is_full_bus(aluy, index, cell, "\\Y", count_mux, "\\A")) + if(!is_full_bus(aluy, index, cell, ID::Y, count_mux, ID::A)) return 11; //B connection of the mux is our underflow value - const RTLIL::SigSpec underflow = sigmap(count_mux->getPort("\\B")); + const RTLIL::SigSpec underflow = sigmap(count_mux->getPort(ID::B)); if(!underflow.is_fully_const()) return 12; extract.count_value = underflow.as_int(); //S connection of the mux must come from an inverter (need not be the only load) - const RTLIL::SigSpec muxsel = sigmap(count_mux->getPort("\\S")); + const RTLIL::SigSpec muxsel = sigmap(count_mux->getPort(ID(S))); extract.outsig = muxsel; pool<Cell*> muxsel_conns = get_other_cells(muxsel, index, count_mux); Cell* underflow_inv = NULL; for(auto c : muxsel_conns) { - if(c->type != "$logic_not") + if(c->type != ID($logic_not)) continue; - if(!is_full_bus(muxsel, index, c, "\\Y", count_mux, "\\S", true)) + if(!is_full_bus(muxsel, index, c, ID::Y, count_mux, ID(S), true)) continue; underflow_inv = c; @@ -196,7 +196,7 @@ int counter_tryextract( //Y connection of the mux must have exactly one load, the counter's internal register, if there's no clock enable //If we have a clock enable, Y drives the B input of a mux. A of that mux must come from our register - const RTLIL::SigSpec muxy = sigmap(count_mux->getPort("\\Y")); + const RTLIL::SigSpec muxy = sigmap(count_mux->getPort(ID::Y)); pool<Cell*> muxy_loads = get_other_cells(muxy, index, count_mux); if(muxy_loads.size() != 1) return 14; @@ -204,12 +204,12 @@ int counter_tryextract( Cell* count_reg = muxload; Cell* cemux = NULL; RTLIL::SigSpec cey; - if(muxload->type == "$mux") + if(muxload->type == ID($mux)) { //This mux is probably a clock enable mux. //Find our count register (should be our only load) cemux = muxload; - cey = sigmap(cemux->getPort("\\Y")); + cey = sigmap(cemux->getPort(ID::Y)); pool<Cell*> cey_loads = get_other_cells(cey, index, cemux); if(cey_loads.size() != 1) return 24; @@ -217,32 +217,32 @@ int counter_tryextract( //Mux should have A driven by count Q, and B by muxy //TODO: if A and B are swapped, CE polarity is inverted - if(sigmap(cemux->getPort("\\B")) != muxy) + if(sigmap(cemux->getPort(ID::B)) != muxy) return 24; - if(sigmap(cemux->getPort("\\A")) != sigmap(count_reg->getPort("\\Q"))) + if(sigmap(cemux->getPort(ID::A)) != sigmap(count_reg->getPort(ID(Q)))) return 24; - if(sigmap(cemux->getPort("\\Y")) != sigmap(count_reg->getPort("\\D"))) + if(sigmap(cemux->getPort(ID::Y)) != sigmap(count_reg->getPort(ID(D)))) return 24; //Select of the mux is our clock enable extract.has_ce = true; - extract.ce = sigmap(cemux->getPort("\\S")); + extract.ce = sigmap(cemux->getPort(ID(S))); } else extract.has_ce = false; extract.count_reg = count_reg; - if(count_reg->type == "$dff") + if(count_reg->type == ID($dff)) extract.has_reset = false; - else if(count_reg->type == "$adff") + else if(count_reg->type == ID($adff)) { extract.has_reset = true; //Check polarity of reset - we may have to add an inverter later on! - extract.rst_inverted = (count_reg->getParam("\\ARST_POLARITY").as_int() != 1); + extract.rst_inverted = (count_reg->getParam(ID(ARST_POLARITY)).as_int() != 1); //Verify ARST_VALUE is zero or full scale - int rst_value = count_reg->getParam("\\ARST_VALUE").as_int(); + int rst_value = count_reg->getParam(ID(ARST_VALUE)).as_int(); if(rst_value == 0) extract.rst_to_max = false; else if(rst_value == extract.count_value) @@ -251,7 +251,7 @@ int counter_tryextract( return 23; //Save the reset - extract.rst = sigmap(count_reg->getPort("\\ARST")); + extract.rst = sigmap(count_reg->getPort(ID(ARST))); } //TODO: support synchronous reset else @@ -260,12 +260,12 @@ int counter_tryextract( //Sanity check that we use the ALU output properly if(extract.has_ce) { - if(!is_full_bus(muxy, index, count_mux, "\\Y", cemux, "\\B")) + if(!is_full_bus(muxy, index, count_mux, ID::Y, cemux, ID::B)) return 16; - if(!is_full_bus(cey, index, cemux, "\\Y", count_reg, "\\D")) + if(!is_full_bus(cey, index, cemux, ID::Y, count_reg, ID(D))) return 16; } - else if(!is_full_bus(muxy, index, count_mux, "\\Y", count_reg, "\\D")) + else if(!is_full_bus(muxy, index, count_mux, ID::Y, count_reg, ID(D))) return 16; //TODO: Verify count_reg CLK_POLARITY is 1 @@ -273,7 +273,7 @@ int counter_tryextract( //Register output must have exactly two loads, the inverter and ALU //(unless we have a parallel output!) //If we have a clock enable, 3 is OK - const RTLIL::SigSpec qport = count_reg->getPort("\\Q"); + const RTLIL::SigSpec qport = count_reg->getPort(ID(Q)); const RTLIL::SigSpec cnout = sigmap(qport); pool<Cell*> cnout_loads = get_other_cells(cnout, index, count_reg); unsigned int max_loads = 2; @@ -312,19 +312,19 @@ int counter_tryextract( } } } - if(!is_full_bus(cnout, index, count_reg, "\\Q", underflow_inv, "\\A", true)) + if(!is_full_bus(cnout, index, count_reg, ID(Q), underflow_inv, ID::A, true)) return 18; - if(!is_full_bus(cnout, index, count_reg, "\\Q", cell, "\\A", true)) + if(!is_full_bus(cnout, index, count_reg, ID(Q), cell, ID::A, true)) return 19; //Look up the clock from the register - extract.clk = sigmap(count_reg->getPort("\\CLK")); + extract.clk = sigmap(count_reg->getPort(ID(CLK))); //Register output net must have an INIT attribute equal to the count value extract.rwire = cnout.as_wire(); - if(extract.rwire->attributes.find("\\init") == extract.rwire->attributes.end()) + if(extract.rwire->attributes.find(ID(init)) == extract.rwire->attributes.end()) return 20; - int rinit = extract.rwire->attributes["\\init"].as_int(); + int rinit = extract.rwire->attributes[ID(init)].as_int(); if(rinit != extract.count_value) return 21; @@ -343,21 +343,21 @@ void counter_worker( SigMap& sigmap = index.sigmap; //Core of the counter must be an ALU - if (cell->type != "$alu") + if (cell->type != ID($alu)) return; //A input is the count value. Check if it has COUNT_EXTRACT set. //If it's not a wire, don't even try - auto port = sigmap(cell->getPort("\\A")); + auto port = sigmap(cell->getPort(ID::A)); if(!port.is_wire()) return; RTLIL::Wire* a_wire = port.as_wire(); bool force_extract = false; bool never_extract = false; - string count_reg_src = a_wire->attributes["\\src"].decode_string().c_str(); - if(a_wire->attributes.find("\\COUNT_EXTRACT") != a_wire->attributes.end()) + string count_reg_src = a_wire->attributes[ID(src)].decode_string().c_str(); + if(a_wire->attributes.find(ID(COUNT_EXTRACT)) != a_wire->attributes.end()) { - pool<string> sa = a_wire->get_strpool_attribute("\\COUNT_EXTRACT"); + pool<string> sa = a_wire->get_strpool_attribute(ID(COUNT_EXTRACT)); string extract_value; if(sa.size() >= 1) { @@ -434,66 +434,66 @@ void counter_worker( string countname = string("$COUNTx$") + log_id(extract.rwire->name.str()); //Wipe all of the old connections to the ALU - cell->unsetPort("\\A"); - cell->unsetPort("\\B"); - cell->unsetPort("\\BI"); - cell->unsetPort("\\CI"); - cell->unsetPort("\\CO"); - cell->unsetPort("\\X"); - cell->unsetPort("\\Y"); - cell->unsetParam("\\A_SIGNED"); - cell->unsetParam("\\A_WIDTH"); - cell->unsetParam("\\B_SIGNED"); - cell->unsetParam("\\B_WIDTH"); - cell->unsetParam("\\Y_WIDTH"); + cell->unsetPort(ID::A); + cell->unsetPort(ID::B); + cell->unsetPort(ID(BI)); + cell->unsetPort(ID(CI)); + cell->unsetPort(ID(CO)); + cell->unsetPort(ID(X)); + cell->unsetPort(ID::Y); + cell->unsetParam(ID(A_SIGNED)); + cell->unsetParam(ID(A_WIDTH)); + cell->unsetParam(ID(B_SIGNED)); + cell->unsetParam(ID(B_WIDTH)); + cell->unsetParam(ID(Y_WIDTH)); //Change the cell type - cell->type = "$__COUNT_"; + cell->type = ID($__COUNT_); //Hook up resets if(extract.has_reset) { //TODO: support other kinds of reset - cell->setParam("\\RESET_MODE", RTLIL::Const("LEVEL")); + cell->setParam(ID(RESET_MODE), RTLIL::Const("LEVEL")); //If the reset is active low, infer an inverter ($__COUNT_ cells always have active high reset) if(extract.rst_inverted) { auto realreset = cell->module->addWire(NEW_ID); cell->module->addNot(NEW_ID, extract.rst, RTLIL::SigSpec(realreset)); - cell->setPort("\\RST", realreset); + cell->setPort(ID(RST), realreset); } else - cell->setPort("\\RST", extract.rst); + cell->setPort(ID(RST), extract.rst); } else { - cell->setParam("\\RESET_MODE", RTLIL::Const("RISING")); - cell->setPort("\\RST", RTLIL::SigSpec(false)); + cell->setParam(ID(RESET_MODE), RTLIL::Const("RISING")); + cell->setPort(ID(RST), RTLIL::SigSpec(false)); } //Hook up other stuff - //cell->setParam("\\CLKIN_DIVIDE", RTLIL::Const(1)); - cell->setParam("\\COUNT_TO", RTLIL::Const(extract.count_value)); - cell->setParam("\\WIDTH", RTLIL::Const(extract.width)); - cell->setPort("\\CLK", extract.clk); - cell->setPort("\\OUT", extract.outsig); + //cell->setParam(ID(CLKIN_DIVIDE), RTLIL::Const(1)); + cell->setParam(ID(COUNT_TO), RTLIL::Const(extract.count_value)); + cell->setParam(ID(WIDTH), RTLIL::Const(extract.width)); + cell->setPort(ID(CLK), extract.clk); + cell->setPort(ID(OUT), extract.outsig); //Hook up clock enable if(extract.has_ce) { - cell->setParam("\\HAS_CE", RTLIL::Const(1)); - cell->setPort("\\CE", extract.ce); + cell->setParam(ID(HAS_CE), RTLIL::Const(1)); + cell->setPort(ID(CE), extract.ce); } else - cell->setParam("\\HAS_CE", RTLIL::Const(0)); + cell->setParam(ID(HAS_CE), RTLIL::Const(0)); //Hook up hard-wired ports (for now up/down are not supported), default to no parallel output - cell->setParam("\\HAS_POUT", RTLIL::Const(0)); - cell->setParam("\\RESET_TO_MAX", RTLIL::Const(0)); - cell->setParam("\\DIRECTION", RTLIL::Const("DOWN")); - cell->setPort("\\CE", RTLIL::Const(1)); - cell->setPort("\\UP", RTLIL::Const(0)); + cell->setParam(ID(HAS_POUT), RTLIL::Const(0)); + cell->setParam(ID(RESET_TO_MAX), RTLIL::Const(0)); + cell->setParam(ID(DIRECTION), RTLIL::Const("DOWN")); + cell->setPort(ID(CE), RTLIL::Const(1)); + cell->setPort(ID(UP), RTLIL::Const(0)); //Hook up any parallel outputs for(auto load : extract.pouts) @@ -505,8 +505,8 @@ void counter_worker( //Connect it to our parallel output //(this is OK to do more than once b/c they all go to the same place) - cell->setPort("\\POUT", sig); - cell->setParam("\\HAS_POUT", RTLIL::Const(1)); + cell->setPort(ID(POUT), sig); + cell->setParam(ID(HAS_POUT), RTLIL::Const(1)); } //Delete the cells we've replaced (let opt_clean handle deleting the now-redundant wires) @@ -546,7 +546,7 @@ void counter_worker( int newbits = ceil(log2(extract.count_value)); if(extract.width != newbits) { - cell->setParam("\\WIDTH", RTLIL::Const(newbits)); + cell->setParam(ID(WIDTH), RTLIL::Const(newbits)); log(" Optimizing out %d unused high-order bits (new width is %d)\n", extract.width - newbits, newbits); @@ -559,7 +559,7 @@ void counter_worker( struct ExtractCounterPass : public Pass { ExtractCounterPass() : Pass("extract_counter", "Extract GreenPak4 counter cells") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -578,7 +578,7 @@ struct ExtractCounterPass : public Pass { log("\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing EXTRACT_COUNTER pass (find counters in netlist).\n"); diff --git a/passes/techmap/extract_fa.cc b/passes/techmap/extract_fa.cc index a68cc5e2e..9f3bb525b 100644 --- a/passes/techmap/extract_fa.cc +++ b/passes/techmap/extract_fa.cc @@ -85,11 +85,11 @@ struct ExtractFaWorker { for (auto cell : module->selected_cells()) { - if (cell->type.in( "$_BUF_", "$_NOT_", "$_AND_", "$_NAND_", "$_OR_", "$_NOR_", - "$_XOR_", "$_XNOR_", "$_ANDNOT_", "$_ORNOT_", "$_MUX_", - "$_AOI3_", "$_OAI3_", "$_AOI4_", "$_OAI4_")) + if (cell->type.in( ID($_BUF_), ID($_NOT_), ID($_AND_), ID($_NAND_), ID($_OR_), ID($_NOR_), + ID($_XOR_), ID($_XNOR_), ID($_ANDNOT_), ID($_ORNOT_), ID($_MUX_), ID($_NMUX_), + ID($_AOI3_), ID($_OAI3_), ID($_AOI4_), ID($_OAI4_))) { - SigBit y = sigmap(SigBit(cell->getPort("\\Y"))); + SigBit y = sigmap(SigBit(cell->getPort(ID::Y))); log_assert(driver.count(y) == 0); driver[y] = cell; } @@ -174,8 +174,10 @@ struct ExtractFaWorker SigSpec sig = root; - if (!ce.eval(sig)) - log_abort(); + if (!ce.eval(sig)) { + ce.pop(); + return; + } if (sig == State::S1) func |= 1 << i; @@ -214,8 +216,10 @@ struct ExtractFaWorker SigSpec sig = root; - if (!ce.eval(sig)) - log_abort(); + if (!ce.eval(sig)) { + ce.pop(); + return; + } if (sig == State::S1) func |= 1 << i; @@ -258,10 +262,14 @@ struct ExtractFaWorker pool<SigBit> new_leaves = leaves; new_leaves.erase(bit); - if (cell->hasPort("\\A")) new_leaves.insert(sigmap(SigBit(cell->getPort("\\A")))); - if (cell->hasPort("\\B")) new_leaves.insert(sigmap(SigBit(cell->getPort("\\B")))); - if (cell->hasPort("\\C")) new_leaves.insert(sigmap(SigBit(cell->getPort("\\C")))); - if (cell->hasPort("\\D")) new_leaves.insert(sigmap(SigBit(cell->getPort("\\D")))); + for (auto port : {ID::A, ID::B, ID(C), ID(D)}) { + if (!cell->hasPort(port)) + continue; + auto bit = sigmap(SigBit(cell->getPort(port))); + if (!bit.wire) + continue; + new_leaves.insert(bit); + } if (GetSize(new_leaves) > maxbreadth) continue; @@ -273,8 +281,8 @@ struct ExtractFaWorker void assign_new_driver(SigBit bit, SigBit new_driver) { Cell *cell = driver.at(bit); - if (sigmap(cell->getPort("\\Y")) == bit) { - cell->setPort("\\Y", module->addWire(NEW_ID)); + if (sigmap(cell->getPort(ID::Y)) == bit) { + cell->setPort(ID::Y, module->addWire(NEW_ID)); module->connect(bit, new_driver); } } @@ -285,7 +293,7 @@ struct ExtractFaWorker for (auto it : driver) { - if (it.second->type.in("$_BUF_", "$_NOT_")) + if (it.second->type.in(ID($_BUF_), ID($_NOT_))) continue; SigBit root = it.first; @@ -386,20 +394,20 @@ struct ExtractFaWorker } else { - Cell *cell = module->addCell(NEW_ID, "$fa"); - cell->setParam("\\WIDTH", 1); + Cell *cell = module->addCell(NEW_ID, ID($fa)); + cell->setParam(ID(WIDTH), 1); log(" Created $fa cell %s.\n", log_id(cell)); - cell->setPort("\\A", f3i.inv_a ? module->NotGate(NEW_ID, A) : A); - cell->setPort("\\B", f3i.inv_b ? module->NotGate(NEW_ID, B) : B); - cell->setPort("\\C", f3i.inv_c ? module->NotGate(NEW_ID, C) : C); + cell->setPort(ID::A, f3i.inv_a ? module->NotGate(NEW_ID, A) : A); + cell->setPort(ID::B, f3i.inv_b ? module->NotGate(NEW_ID, B) : B); + cell->setPort(ID(C), f3i.inv_c ? module->NotGate(NEW_ID, C) : C); X = module->addWire(NEW_ID); Y = module->addWire(NEW_ID); - cell->setPort("\\X", X); - cell->setPort("\\Y", Y); + cell->setPort(ID(X), X); + cell->setPort(ID::Y, Y); facache[fakey] = make_tuple(X, Y, cell); } @@ -492,30 +500,30 @@ struct ExtractFaWorker } else { - Cell *cell = module->addCell(NEW_ID, "$fa"); - cell->setParam("\\WIDTH", 1); + Cell *cell = module->addCell(NEW_ID, ID($fa)); + cell->setParam(ID(WIDTH), 1); log(" Created $fa cell %s.\n", log_id(cell)); - cell->setPort("\\A", f2i.inv_a ? module->NotGate(NEW_ID, A) : A); - cell->setPort("\\B", f2i.inv_b ? module->NotGate(NEW_ID, B) : B); - cell->setPort("\\C", State::S0); + cell->setPort(ID::A, f2i.inv_a ? module->NotGate(NEW_ID, A) : A); + cell->setPort(ID::B, f2i.inv_b ? module->NotGate(NEW_ID, B) : B); + cell->setPort(ID(C), State::S0); X = module->addWire(NEW_ID); Y = module->addWire(NEW_ID); - cell->setPort("\\X", X); - cell->setPort("\\Y", Y); + cell->setPort(ID(X), X); + cell->setPort(ID::Y, Y); } if (func2.at(key).count(xor2_func)) { - SigBit YY = invert_xy ? module->NotGate(NEW_ID, Y) : Y; + SigBit YY = invert_xy || (f2i.inv_a && !f2i.inv_b) || (!f2i.inv_a && f2i.inv_b) ? module->NotGate(NEW_ID, Y) : Y; for (auto bit : func2.at(key).at(xor2_func)) assign_new_driver(bit, YY); } if (func2.at(key).count(xnor2_func)) { - SigBit YY = invert_xy ? Y : module->NotGate(NEW_ID, Y); + SigBit YY = invert_xy || (f2i.inv_a && !f2i.inv_b) || (!f2i.inv_a && f2i.inv_b) ? Y : module->NotGate(NEW_ID, Y); for (auto bit : func2.at(key).at(xnor2_func)) assign_new_driver(bit, YY); } @@ -531,7 +539,7 @@ struct ExtractFaWorker struct ExtractFaPass : public Pass { ExtractFaPass() : Pass("extract_fa", "find and extract full/half adders") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -553,7 +561,7 @@ struct ExtractFaPass : public Pass { log(" Verbose output\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { ExtractFaConfig config; diff --git a/passes/techmap/extract_reduce.cc b/passes/techmap/extract_reduce.cc index cc21c8665..11cfddcd9 100644 --- a/passes/techmap/extract_reduce.cc +++ b/passes/techmap/extract_reduce.cc @@ -19,6 +19,7 @@ #include "kernel/yosys.h" #include "kernel/sigtools.h" +#include <deque> USING_YOSYS_NAMESPACE PRIVATE_NAMESPACE_BEGIN @@ -33,7 +34,7 @@ struct ExtractReducePass : public Pass ExtractReducePass() : Pass("extract_reduce", "converts gate chains into $reduce_* cells") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -57,12 +58,12 @@ struct ExtractReducePass : public Pass inline bool IsRightType(Cell* cell, GateType gt) { - return (cell->type == "$_AND_" && gt == GateType::And) || - (cell->type == "$_OR_" && gt == GateType::Or) || - (cell->type == "$_XOR_" && gt == GateType::Xor); + return (cell->type == ID($_AND_) && gt == GateType::And) || + (cell->type == ID($_OR_) && gt == GateType::Or) || + (cell->type == ID($_XOR_) && gt == GateType::Xor); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing EXTRACT_REDUCE pass.\n"); log_push(); @@ -123,11 +124,11 @@ struct ExtractReducePass : public Pass GateType gt; - if (cell->type == "$_AND_") + if (cell->type == ID($_AND_)) gt = GateType::And; - else if (cell->type == "$_OR_") + else if (cell->type == ID($_OR_)) gt = GateType::Or; - else if (cell->type == "$_XOR_") + else if (cell->type == ID($_XOR_)) gt = GateType::Xor; else continue; @@ -147,7 +148,7 @@ struct ExtractReducePass : public Pass head_cell = x; - auto y = sigmap(x->getPort("\\Y")); + auto y = sigmap(x->getPort(ID::Y)); log_assert(y.size() == 1); // Should only continue if there is one fanout back into a cell (not to a port) @@ -165,7 +166,7 @@ struct ExtractReducePass : public Pass { //BFS, following all chains until they hit a cell of a different type //Pick the longest one - auto y = sigmap(cell->getPort("\\Y")); + auto y = sigmap(cell->getPort(ID::Y)); pool<Cell*> current_loads = sig_to_sink[y]; pool<Cell*> next_loads; @@ -232,7 +233,7 @@ struct ExtractReducePass : public Pass cur_supercell.insert(x); - auto a = sigmap(x->getPort("\\A")); + auto a = sigmap(x->getPort(ID::A)); log_assert(a.size() == 1); // Must have only one sink unless we're going off chain @@ -248,7 +249,7 @@ struct ExtractReducePass : public Pass } } - auto b = sigmap(x->getPort("\\B")); + auto b = sigmap(x->getPort(ID::B)); log_assert(b.size() == 1); // Must have only one sink @@ -278,26 +279,26 @@ struct ExtractReducePass : public Pass pool<SigBit> input_pool_intermed; for (auto x : cur_supercell) { - input_pool.insert(sigmap(x->getPort("\\A"))[0]); - input_pool.insert(sigmap(x->getPort("\\B"))[0]); - input_pool_intermed.insert(sigmap(x->getPort("\\Y"))[0]); + input_pool.insert(sigmap(x->getPort(ID::A))[0]); + input_pool.insert(sigmap(x->getPort(ID::B))[0]); + input_pool_intermed.insert(sigmap(x->getPort(ID::Y))[0]); } SigSpec input; for (auto b : input_pool) if (input_pool_intermed.count(b) == 0) input.append_bit(b); - SigBit output = sigmap(head_cell->getPort("\\Y")[0]); + SigBit output = sigmap(head_cell->getPort(ID::Y)[0]); auto new_reduce_cell = module->addCell(NEW_ID, - gt == GateType::And ? "$reduce_and" : - gt == GateType::Or ? "$reduce_or" : - gt == GateType::Xor ? "$reduce_xor" : ""); - new_reduce_cell->setParam("\\A_SIGNED", 0); - new_reduce_cell->setParam("\\A_WIDTH", input.size()); - new_reduce_cell->setParam("\\Y_WIDTH", 1); - new_reduce_cell->setPort("\\A", input); - new_reduce_cell->setPort("\\Y", output); + gt == GateType::And ? ID($reduce_and) : + gt == GateType::Or ? ID($reduce_or) : + gt == GateType::Xor ? ID($reduce_xor) : ""); + new_reduce_cell->setParam(ID(A_SIGNED), 0); + new_reduce_cell->setParam(ID(A_WIDTH), input.size()); + new_reduce_cell->setParam(ID(Y_WIDTH), 1); + new_reduce_cell->setPort(ID::A, input); + new_reduce_cell->setPort(ID::Y, output); if(allow_off_chain) consumed_cells.insert(head_cell); diff --git a/passes/techmap/extractinv.cc b/passes/techmap/extractinv.cc new file mode 100644 index 000000000..dda71f12a --- /dev/null +++ b/passes/techmap/extractinv.cc @@ -0,0 +1,123 @@ +/* + * yosys -- Yosys Open SYnthesis Suite + * + * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at> + * Copyright (C) 2019 Marcin Kościelnicki <mwk@0x04.net> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#include "kernel/yosys.h" +#include "kernel/sigtools.h" + +USING_YOSYS_NAMESPACE +PRIVATE_NAMESPACE_BEGIN + +void split_portname_pair(std::string &port1, std::string &port2) +{ + size_t pos = port1.find_first_of(':'); + if (pos != std::string::npos) { + port2 = port1.substr(pos+1); + port1 = port1.substr(0, pos); + } +} + +struct ExtractinvPass : public Pass { + ExtractinvPass() : Pass("extractinv", "extract explicit inverter cells for invertible cell pins") { } + void help() YS_OVERRIDE + { + // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| + log("\n"); + log(" extractinv [options] [selection]\n"); + log("\n"); + log("Searches the design for all cells with invertible pins controlled by a cell\n"); + log("parameter (eg. IS_CLK_INVERTED on many Xilinx cells) and removes the parameter.\n"); + log("If the parameter was set to 1, inserts an explicit inverter cell in front of\n"); + log("the pin instead. Normally used for output to ISE, which does not support the\n"); + log("inversion parameters.\n"); + log("\n"); + log("To mark a cell port as invertible, use (* invertible_pin = \"param_name\" *)\n"); + log("on the wire in the blackbox module. The parameter value should have\n"); + log("the same width as the port, and will be effectively XORed with it.\n"); + log("\n"); + log(" -inv <celltype> <portname_out>:<portname_in>\n"); + log(" Specifies the cell type to use for the inverters and its port names.\n"); + log(" This option is required.\n"); + log("\n"); + } + + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE + { + log_header(design, "Executing EXTRACTINV pass (extracting pin inverters).\n"); + + std::string inv_celltype, inv_portname, inv_portname2; + + size_t argidx; + for (argidx = 1; argidx < args.size(); argidx++) + { + std::string arg = args[argidx]; + if (arg == "-inv" && argidx+2 < args.size()) { + inv_celltype = args[++argidx]; + inv_portname = args[++argidx]; + split_portname_pair(inv_portname, inv_portname2); + continue; + } + break; + } + extra_args(args, argidx, design); + + if (inv_celltype.empty()) + log_error("The -inv option is required.\n"); + + for (auto module : design->selected_modules()) + { + for (auto cell : module->selected_cells()) + for (auto port : cell->connections()) { + auto cell_module = design->module(cell->type); + if (!cell_module) + continue; + auto cell_wire = cell_module->wire(port.first); + if (!cell_wire) + continue; + auto it = cell_wire->attributes.find("\\invertible_pin"); + if (it == cell_wire->attributes.end()) + continue; + IdString param_name = RTLIL::escape_id(it->second.decode_string()); + auto it2 = cell->parameters.find(param_name); + // Inversion not used -- skip. + if (it2 == cell->parameters.end()) + continue; + SigSpec sig = port.second; + if (it2->second.size() != sig.size()) + log_error("The inversion parameter needs to be the same width as the port (%s.%s port %s parameter %s)", log_id(module->name), log_id(cell->type), log_id(port.first), log_id(param_name)); + RTLIL::Const invmask = it2->second; + cell->parameters.erase(param_name); + if (invmask.is_fully_zero()) + continue; + Wire *iwire = module->addWire(NEW_ID, sig.size()); + for (int i = 0; i < sig.size(); i++) + if (invmask[i] == State::S1) { + RTLIL::Cell *icell = module->addCell(NEW_ID, RTLIL::escape_id(inv_celltype)); + icell->setPort(RTLIL::escape_id(inv_portname), SigSpec(iwire, i)); + icell->setPort(RTLIL::escape_id(inv_portname2), sig[i]); + log("Inserting %s on %s.%s.%s[%d].\n", inv_celltype.c_str(), log_id(module), log_id(cell->type), log_id(port.first), i); + sig[i] = SigBit(iwire, i); + } + cell->setPort(port.first, sig); + } + } + } +} ExtractinvPass; + +PRIVATE_NAMESPACE_END diff --git a/passes/techmap/flowmap.cc b/passes/techmap/flowmap.cc new file mode 100644 index 000000000..a2ad87f7d --- /dev/null +++ b/passes/techmap/flowmap.cc @@ -0,0 +1,1614 @@ +/* + * yosys -- Yosys Open SYnthesis Suite + * + * Copyright (C) 2018 whitequark <whitequark@whitequark.org> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +// [[CITE]] FlowMap algorithm +// Jason Cong; Yuzheng Ding, "An Optimal Technology Mapping Algorithm for Delay Optimization in Lookup-Table Based FPGA Designs," +// Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on, Vol. 13, pp. 1-12, Jan. 1994. +// doi: 10.1109/43.273754 + +// [[CITE]] FlowMap-r algorithm +// Jason Cong; Yuzheng Ding, "On Area/Depth Tradeoff in LUT-Based FPGA Technology Mapping," +// Very Large Scale Integration Systems, IEEE Transactions on, Vol. 2, June 1994. +// doi: 10.1109/92.28574 + +// Required reading material: +// +// Min-cut max-flow theorem: +// https://www.coursera.org/lecture/algorithms-part2/maxflow-mincut-theorem-beb9G +// FlowMap paper: +// http://cadlab.cs.ucla.edu/~cong/papers/iccad92.pdf (short version) +// https://limsk.ece.gatech.edu/book/papers/flowmap.pdf (long version) +// FlowMap-r paper: +// http://cadlab.cs.ucla.edu/~cong/papers/dac93.pdf (short version) +// https://sci-hub.tw/10.1109/92.285741 (long version) + +// Notes on correspondence between paper and implementation: +// +// 1. In the FlowMap paper, the nodes are logic elements (analogous to Yosys cells) and edges are wires. However, in our implementation, +// we use an inverted approach: the nodes are Yosys wire bits, and the edges are derived from (but aren't represented by) Yosys cells. +// This may seem counterintuitive. Three observations may help understanding this. First, for a cell with a 1-bit Y output that is +// the sole driver of its output net (which is the typical case), these representations are equivalent, because there is an exact +// correspondence between cells and output wires. Second, in the paper, primary inputs (analogous to Yosys cell or module ports) are +// nodes, and in Yosys, inputs are wires; our approach allows a direct mapping from both primary inputs and 1-output logic elements to +// flow graph nodes. Third, Yosys cells may have multiple outputs or multi-bit outputs, and by using Yosys wire bits as flow graph nodes, +// such cells are supported without any additional effort; any Yosys cell with n output wire bits ends up being split into n flow graph +// nodes. +// +// 2. The FlowMap paper introduces three networks: Nt, Nt', and Nt''. The network Nt is directly represented by a subgraph of RTLIL graph, +// which is parsed into an equivalent but easier to traverse representation in FlowmapWorker. The network Nt' is built explicitly +// from a subgraph of Nt, and uses a similar representation in FlowGraph. The network Nt'' is implicit in FlowGraph, which is possible +// because of the following observation: each Nt' node corresponds to an Nt'' edge of capacity 1, and each Nt' edge corresponds to +// an Nt'' edge of capacity ∞. Therefore, we only need to explicitly record flow for Nt' edges and through Nt' nodes. +// +// 3. The FlowMap paper ambiguously states: "Moreover, we can find such a cut (X′′, X̅′′) by performing a depth first search starting at +// the source s, and including in X′′ all the nodes which are reachable from s." This actually refers to a specific kind of search, +// min-cut computation. Min-cut computation involves computing the set of nodes reachable from s by an undirected path with no full +// (i.e. zero capacity) forward edges or empty (i.e. no flow) backward edges. In addition, the depth first search is required to compute +// a max-volume max-flow min-cut specifically, because a max-flow min-cut is not, in general, unique. + +// Notes on implementation: +// +// 1. To compute depth optimal packing, an intermediate representation is used, where each cell with n output bits is split into n graph +// nodes. Each such graph node is represented directly with the wire bit (RTLIL::SigBit instance) that corresponds to the output bit +// it is created from. Fan-in and fan-out are represented explicitly by edge lists derived from the RTLIL graph. This IR never changes +// after it has been computed. +// +// In terms of data, this IR is comprised of `inputs`, `outputs`, `nodes`, `edges_fw` and `edges_bw` fields. +// +// We call this IR "gate IR". +// +// 2. To compute area optimal packing, another intermediate representation is used, which consists of some K-feasible cone for every node +// that exists in the gate IR. Immediately after depth optimal packing with FlowMap, each such cone occupies the lowest possible depth, +// but this is not true in general, and transformations of this IR may change the cones, although each transformation has to keep each +// cone K-feasible. In this IR, LUT fan-in and fan-out are represented explicitly by edge lists; if a K-feasible cone chosen for node A +// includes nodes B and C, there are edges between all predecessors of A, B and C in the gate IR and node A in this IR. Moreover, in +// this IR, cones may be *realized* or *derealized*. Only realized cones will end up mapped to actual LUTs in the output of this pass. +// +// Intuitively, this IR contains (some, ideally but not necessarily optimal) LUT representation for each input cell. By starting at outputs +// and traversing the graph of this IR backwards, each K-feasible cone is converted to an actual LUT at the end of the pass. This is +// the same as iterating through each realized LUT. +// +// The following are the invariants of this IR: +// a) Each gate IR node corresponds to a K-feasible cut. +// b) Each realized LUT is reachable through backward edges from some output. +// c) The LUT fan-in is exactly the fan-in of its constituent gates minus the fan-out of its constituent gates. +// The invariants are kept even for derealized LUTs, since the whole point of this IR is ease of packing, unpacking, and repacking LUTs. +// +// In terms of data, this IR is comprised of `lut_nodes` (the set of all realized LUTs), `lut_gates` (the map from a LUT to its +// constituent gates), `lut_edges_fw` and `lut_edges_bw` fields. The `inputs` and `outputs` fields are shared with the gate IR. +// +// We call this IR "LUT IR". + +#include "kernel/yosys.h" +#include "kernel/sigtools.h" +#include "kernel/modtools.h" +#include "kernel/consteval.h" + +USING_YOSYS_NAMESPACE +PRIVATE_NAMESPACE_BEGIN + +struct GraphStyle +{ + string label; + string color, fillcolor; + + GraphStyle(string label = "", string color = "black", string fillcolor = "") : + label(label), color(color), fillcolor(fillcolor) {} +}; + +static string dot_escape(string value) +{ + std::string escaped; + for (char c : value) { + if (c == '\n') + { + escaped += "\\n"; + continue; + } + if (c == '\\' || c == '"') + escaped += "\\"; + escaped += c; + } + return escaped; +} + +static void dump_dot_graph(string filename, + pool<RTLIL::SigBit> nodes, dict<RTLIL::SigBit, pool<RTLIL::SigBit>> edges, + pool<RTLIL::SigBit> inputs, pool<RTLIL::SigBit> outputs, + std::function<GraphStyle(RTLIL::SigBit)> node_style = + [](RTLIL::SigBit) { return GraphStyle{}; }, + std::function<GraphStyle(RTLIL::SigBit, RTLIL::SigBit)> edge_style = + [](RTLIL::SigBit, RTLIL::SigBit) { return GraphStyle{}; }, + string name = "") +{ + FILE *f = fopen(filename.c_str(), "w"); + fprintf(f, "digraph \"%s\" {\n", name.c_str()); + fprintf(f, " rankdir=\"TB\";\n"); + + dict<RTLIL::SigBit, int> ids; + for (auto node : nodes) + { + ids[node] = ids.size(); + + string shape = "ellipse"; + if (inputs[node]) + shape = "box"; + if (outputs[node]) + shape = "octagon"; + auto prop = node_style(node); + string style = ""; + if (!prop.fillcolor.empty()) + style = "filled"; + fprintf(f, " n%d [ shape=%s, fontname=\"Monospace\", label=\"%s\", color=\"%s\", fillcolor=\"%s\", style=\"%s\" ];\n", + ids[node], shape.c_str(), dot_escape(prop.label.c_str()).c_str(), prop.color.c_str(), prop.fillcolor.c_str(), style.c_str()); + } + + fprintf(f, " { rank=\"source\"; "); + for (auto input : inputs) + if (nodes[input]) + fprintf(f, "n%d; ", ids[input]); + fprintf(f, "}\n"); + + fprintf(f, " { rank=\"sink\"; "); + for (auto output : outputs) + if (nodes[output]) + fprintf(f, "n%d; ", ids[output]); + fprintf(f, "}\n"); + + for (auto edge : edges) + { + auto source = edge.first; + for (auto sink : edge.second) { + if (nodes[source] && nodes[sink]) + { + auto prop = edge_style(source, sink); + fprintf(f, " n%d -> n%d [ label=\"%s\", color=\"%s\", fillcolor=\"%s\" ];\n", + ids[source], ids[sink], dot_escape(prop.label.c_str()).c_str(), prop.color.c_str(), prop.fillcolor.c_str()); + } + } + } + + fprintf(f, "}\n"); + fclose(f); +} + +struct FlowGraph +{ + const RTLIL::SigBit source; + RTLIL::SigBit sink; + pool<RTLIL::SigBit> nodes = {source}; + dict<RTLIL::SigBit, pool<RTLIL::SigBit>> edges_fw, edges_bw; + + const int MAX_NODE_FLOW = 1; + dict<RTLIL::SigBit, int> node_flow; + dict<pair<RTLIL::SigBit, RTLIL::SigBit>, int> edge_flow; + + dict<RTLIL::SigBit, pool<RTLIL::SigBit>> collapsed; + + void dump_dot_graph(string filename) + { + auto node_style = [&](RTLIL::SigBit node) { + string label = (node == source) ? "(source)" : log_signal(node); + for (auto collapsed_node : collapsed[node]) + label += stringf(" %s", log_signal(collapsed_node)); + int flow = node_flow[node]; + if (node != source && node != sink) + label += stringf("\n%d/%d", flow, MAX_NODE_FLOW); + else + label += stringf("\n%d/∞", flow); + return GraphStyle{label, flow < MAX_NODE_FLOW ? "green" : "black"}; + }; + auto edge_style = [&](RTLIL::SigBit source, RTLIL::SigBit sink) { + int flow = edge_flow[{source, sink}]; + return GraphStyle{stringf("%d/∞", flow), flow > 0 ? "blue" : "black"}; + }; + ::dump_dot_graph(filename, nodes, edges_fw, {source}, {sink}, node_style, edge_style); + } + + // Here, we are working on the Nt'' network, but our representation is the Nt' network. + // The difference between these is that where in Nt' we have a subgraph: + // + // v1 -> v2 -> v3 + // + // in Nt'' we have a corresponding subgraph: + // + // v'1b -∞-> v'2t -f-> v'2b -∞-> v'3t + // + // To address this, we split each node v into two nodes, v't and v'b. This representation is virtual, + // in the sense that nodes v't and v'b are overlaid on top of the original node v, and only exist + // in paths and worklists. + + struct NodePrime + { + RTLIL::SigBit node; + bool is_bottom; + + NodePrime(RTLIL::SigBit node, bool is_bottom) : + node(node), is_bottom(is_bottom) {} + + bool operator==(const NodePrime &other) const + { + return node == other.node && is_bottom == other.is_bottom; + } + bool operator!=(const NodePrime &other) const + { + return !(*this == other); + } + unsigned int hash() const + { + return hash_ops<pair<RTLIL::SigBit, int>>::hash({node, is_bottom}); + } + + static NodePrime top(RTLIL::SigBit node) + { + return NodePrime(node, /*is_bottom=*/false); + } + + static NodePrime bottom(RTLIL::SigBit node) + { + return NodePrime(node, /*is_bottom=*/true); + } + + NodePrime as_top() const + { + log_assert(is_bottom); + return top(node); + } + + NodePrime as_bottom() const + { + log_assert(!is_bottom); + return bottom(node); + } + }; + + bool find_augmenting_path(bool commit) + { + NodePrime source_prime = {source, true}; + NodePrime sink_prime = {sink, false}; + vector<NodePrime> path = {source_prime}; + pool<NodePrime> visited = {}; + bool found; + do { + found = false; + + auto node_prime = path.back(); + visited.insert(node_prime); + + if (!node_prime.is_bottom) // vt + { + if (!visited[node_prime.as_bottom()] && node_flow[node_prime.node] < MAX_NODE_FLOW) + { + path.push_back(node_prime.as_bottom()); + found = true; + } + else + { + for (auto node_pred : edges_bw[node_prime.node]) + { + if (!visited[NodePrime::bottom(node_pred)] && edge_flow[{node_pred, node_prime.node}] > 0) + { + path.push_back(NodePrime::bottom(node_pred)); + found = true; + break; + } + } + } + } + else // vb + { + if (!visited[node_prime.as_top()] && node_flow[node_prime.node] > 0) + { + path.push_back(node_prime.as_top()); + found = true; + } + else + { + for (auto node_succ : edges_fw[node_prime.node]) + { + if (!visited[NodePrime::top(node_succ)] /* && edge_flow[...] < ∞ */) + { + path.push_back(NodePrime::top(node_succ)); + found = true; + break; + } + } + } + } + + if (!found && path.size() > 1) + { + path.pop_back(); + found = true; + } + } while(path.back() != sink_prime && found); + + if (commit && path.back() == sink_prime) + { + auto prev_prime = path.front(); + for (auto node_prime : path) + { + if (node_prime == source_prime) + continue; + + log_assert(prev_prime.is_bottom ^ node_prime.is_bottom); + if (prev_prime.node == node_prime.node) + { + auto node = node_prime.node; + if (!prev_prime.is_bottom && node_prime.is_bottom) + { + log_assert(node_flow[node] == 0); + node_flow[node]++; + } + else + { + log_assert(node_flow[node] != 0); + node_flow[node]--; + } + } + else + { + if (prev_prime.is_bottom && !node_prime.is_bottom) + { + log_assert(true /* edge_flow[...] < ∞ */); + edge_flow[{prev_prime.node, node_prime.node}]++; + } + else + { + log_assert((edge_flow[{node_prime.node, prev_prime.node}] > 0)); + edge_flow[{node_prime.node, prev_prime.node}]--; + } + } + prev_prime = node_prime; + } + + node_flow[source]++; + node_flow[sink]++; + } + return path.back() == sink_prime; + } + + int maximum_flow(int order) + { + int flow = 0; + while (flow < order && find_augmenting_path(/*commit=*/true)) + flow++; + return flow + find_augmenting_path(/*commit=*/false); + } + + pair<pool<RTLIL::SigBit>, pool<RTLIL::SigBit>> edge_cut() + { + pool<RTLIL::SigBit> x = {source}, xi; // X and X̅ in the paper + + NodePrime source_prime = {source, true}; + pool<NodePrime> visited; + vector<NodePrime> worklist = {source_prime}; + while (!worklist.empty()) + { + auto node_prime = worklist.back(); + worklist.pop_back(); + if (visited[node_prime]) + continue; + visited.insert(node_prime); + + if (!node_prime.is_bottom) + x.insert(node_prime.node); + + // Mincut is constructed by traversing a graph in an undirected way along forward edges that aren't full, or backward edges + // that aren't empty. + if (!node_prime.is_bottom) // top + { + if (node_flow[node_prime.node] < MAX_NODE_FLOW) + worklist.push_back(node_prime.as_bottom()); + for (auto node_pred : edges_bw[node_prime.node]) + if (edge_flow[{node_pred, node_prime.node}] > 0) + worklist.push_back(NodePrime::bottom(node_pred)); + } + else // bottom + { + if (node_flow[node_prime.node] > 0) + worklist.push_back(node_prime.as_top()); + for (auto node_succ : edges_fw[node_prime.node]) + if (true /* edge_flow[...] < ∞ */) + worklist.push_back(NodePrime::top(node_succ)); + } + } + + for (auto node : nodes) + if (!x[node]) + xi.insert(node); + + for (auto collapsed_node : collapsed[sink]) + xi.insert(collapsed_node); + + log_assert(x[source] && !xi[source]); + log_assert(!x[sink] && xi[sink]); + return {x, xi}; + } +}; + +struct FlowmapWorker +{ + int order; + int r_alpha, r_beta, r_gamma; + bool debug, debug_relax; + + RTLIL::Module *module; + SigMap sigmap; + ModIndex index; + + dict<RTLIL::SigBit, ModIndex::PortInfo> node_origins; + + // Gate IR + pool<RTLIL::SigBit> nodes, inputs, outputs; + dict<RTLIL::SigBit, pool<RTLIL::SigBit>> edges_fw, edges_bw; + dict<RTLIL::SigBit, int> labels; + + // LUT IR + pool<RTLIL::SigBit> lut_nodes; + dict<RTLIL::SigBit, pool<RTLIL::SigBit>> lut_gates; + dict<RTLIL::SigBit, pool<RTLIL::SigBit>> lut_edges_fw, lut_edges_bw; + dict<RTLIL::SigBit, int> lut_depths, lut_altitudes, lut_slacks; + + int gate_count = 0, lut_count = 0, packed_count = 0; + int gate_area = 0, lut_area = 0; + + enum class GraphMode { + Label, + Cut, + Slack, + }; + + void dump_dot_graph(string filename, GraphMode mode, + pool<RTLIL::SigBit> subgraph_nodes = {}, dict<RTLIL::SigBit, pool<RTLIL::SigBit>> subgraph_edges = {}, + dict<RTLIL::SigBit, pool<RTLIL::SigBit>> collapsed = {}, + pair<pool<RTLIL::SigBit>, pool<RTLIL::SigBit>> cut = {}) + { + if (subgraph_nodes.empty()) + subgraph_nodes = nodes; + if (subgraph_edges.empty()) + subgraph_edges = edges_fw; + + auto node_style = [&](RTLIL::SigBit node) { + string label = log_signal(node); + for (auto collapsed_node : collapsed[node]) + if (collapsed_node != node) + label += stringf(" %s", log_signal(collapsed_node)); + switch (mode) + { + case GraphMode::Label: + if (labels[node] == -1) + { + label += "\nl=?"; + return GraphStyle{label}; + } + else + { + label += stringf("\nl=%d", labels[node]); + string fillcolor = stringf("/set311/%d", 1 + labels[node] % 11); + return GraphStyle{label, "", fillcolor}; + } + + case GraphMode::Cut: + if (cut.first[node]) + return GraphStyle{label, "blue"}; + if (cut.second[node]) + return GraphStyle{label, "red"}; + return GraphStyle{label}; + + case GraphMode::Slack: + label += stringf("\nd=%d a=%d\ns=%d", lut_depths[node], lut_altitudes[node], lut_slacks[node]); + return GraphStyle{label, lut_slacks[node] == 0 ? "red" : "black"}; + } + return GraphStyle{label}; + }; + auto edge_style = [&](RTLIL::SigBit, RTLIL::SigBit) { + return GraphStyle{}; + }; + ::dump_dot_graph(filename, subgraph_nodes, subgraph_edges, inputs, outputs, node_style, edge_style, module->name.str()); + } + + void dump_dot_lut_graph(string filename, GraphMode mode) + { + pool<RTLIL::SigBit> lut_and_input_nodes; + lut_and_input_nodes.insert(lut_nodes.begin(), lut_nodes.end()); + lut_and_input_nodes.insert(inputs.begin(), inputs.end()); + dump_dot_graph(filename, mode, lut_and_input_nodes, lut_edges_fw, lut_gates); + } + + pool<RTLIL::SigBit> find_subgraph(RTLIL::SigBit sink) + { + pool<RTLIL::SigBit> subgraph; + pool<RTLIL::SigBit> worklist = {sink}; + while (!worklist.empty()) + { + auto node = worklist.pop(); + subgraph.insert(node); + for (auto source : edges_bw[node]) + { + if (!subgraph[source]) + worklist.insert(source); + } + } + return subgraph; + } + + FlowGraph build_flow_graph(RTLIL::SigBit sink, int p) + { + FlowGraph flow_graph; + flow_graph.sink = sink; + + pool<RTLIL::SigBit> worklist = {sink}, visited; + while (!worklist.empty()) + { + auto node = worklist.pop(); + visited.insert(node); + + auto collapsed_node = labels[node] == p ? sink : node; + if (node != collapsed_node) + flow_graph.collapsed[collapsed_node].insert(node); + flow_graph.nodes.insert(collapsed_node); + + for (auto node_pred : edges_bw[node]) + { + auto collapsed_node_pred = labels[node_pred] == p ? sink : node_pred; + if (node_pred != collapsed_node_pred) + flow_graph.collapsed[collapsed_node_pred].insert(node_pred); + if (collapsed_node != collapsed_node_pred) + { + flow_graph.edges_bw[collapsed_node].insert(collapsed_node_pred); + flow_graph.edges_fw[collapsed_node_pred].insert(collapsed_node); + } + if (inputs[node_pred]) + { + flow_graph.edges_bw[collapsed_node_pred].insert(flow_graph.source); + flow_graph.edges_fw[flow_graph.source].insert(collapsed_node_pred); + } + + if (!visited[node_pred]) + worklist.insert(node_pred); + } + } + return flow_graph; + } + + void discover_nodes(pool<IdString> cell_types) + { + for (auto cell : module->selected_cells()) + { + if (!cell_types[cell->type]) + continue; + + if (!cell->known()) + log_error("Cell %s (%s.%s) is unknown.\n", cell->type.c_str(), log_id(module), log_id(cell)); + + pool<RTLIL::SigBit> fanout; + for (auto conn : cell->connections()) + { + if (!cell->output(conn.first)) continue; + int offset = -1; + for (auto bit : conn.second) + { + offset++; + if (!bit.wire) continue; + auto mapped_bit = sigmap(bit); + if (nodes[mapped_bit]) + log_error("Multiple drivers found for wire %s.\n", log_signal(mapped_bit)); + nodes.insert(mapped_bit); + node_origins[mapped_bit] = ModIndex::PortInfo(cell, conn.first, offset); + fanout.insert(mapped_bit); + } + } + + int fanin = 0; + for (auto conn : cell->connections()) + { + if (!cell->input(conn.first)) continue; + for (auto bit : sigmap(conn.second)) + { + if (!bit.wire) continue; + for (auto fanout_bit : fanout) + { + edges_fw[bit].insert(fanout_bit); + edges_bw[fanout_bit].insert(bit); + } + fanin++; + } + } + + if (fanin > order) + log_error("Cell %s (%s.%s) with fan-in %d cannot be mapped to a %d-LUT.\n", + cell->type.c_str(), log_id(module), log_id(cell), fanin, order); + + gate_count++; + gate_area += 1 << fanin; + } + + for (auto edge : edges_fw) + { + if (!nodes[edge.first]) + { + inputs.insert(edge.first); + nodes.insert(edge.first); + } + } + + for (auto node : nodes) + { + auto node_info = index.query(node); + if (node_info->is_output && !inputs[node]) + outputs.insert(node); + for (auto port : node_info->ports) + if (!cell_types[port.cell->type] && !inputs[node]) + outputs.insert(node); + } + + if (debug) + { + dump_dot_graph("flowmap-initial.dot", GraphMode::Label); + log("Dumped initial graph to `flowmap-initial.dot`.\n"); + } + } + + void label_nodes() + { + for (auto node : nodes) + labels[node] = -1; + for (auto input : inputs) + { + if (input.wire->attributes.count(ID($flowmap_level))) + labels[input] = input.wire->attributes[ID($flowmap_level)].as_int(); + else + labels[input] = 0; + } + + pool<RTLIL::SigBit> worklist = nodes; + int debug_num = 0; + while (!worklist.empty()) + { + auto sink = worklist.pop(); + if (labels[sink] != -1) + continue; + + bool inputs_have_labels = true; + for (auto sink_input : edges_bw[sink]) + { + if (labels[sink_input] == -1) + { + inputs_have_labels = false; + break; + } + } + if (!inputs_have_labels) + continue; + + if (debug) + { + debug_num++; + log("Examining subgraph %d rooted in %s.\n", debug_num, log_signal(sink)); + } + + pool<RTLIL::SigBit> subgraph = find_subgraph(sink); + + int p = 1; + for (auto subgraph_node : subgraph) + p = max(p, labels[subgraph_node]); + + FlowGraph flow_graph = build_flow_graph(sink, p); + int flow = flow_graph.maximum_flow(order); + pool<RTLIL::SigBit> x, xi; + if (flow <= order) + { + labels[sink] = p; + auto cut = flow_graph.edge_cut(); + x = cut.first; + xi = cut.second; + } + else + { + labels[sink] = p + 1; + x = subgraph; + x.erase(sink); + xi.insert(sink); + } + lut_gates[sink] = xi; + + pool<RTLIL::SigBit> k; + for (auto xi_node : xi) + { + for (auto xi_node_pred : edges_bw[xi_node]) + if (x[xi_node_pred]) + k.insert(xi_node_pred); + } + log_assert((int)k.size() <= order); + lut_edges_bw[sink] = k; + for (auto k_node : k) + lut_edges_fw[k_node].insert(sink); + + if (debug) + { + log(" Maximum flow: %d. Assigned label %d.\n", flow, labels[sink]); + dump_dot_graph(stringf("flowmap-%d-sub.dot", debug_num), GraphMode::Cut, subgraph, {}, {}, {x, xi}); + log(" Dumped subgraph to `flowmap-%d-sub.dot`.\n", debug_num); + flow_graph.dump_dot_graph(stringf("flowmap-%d-flow.dot", debug_num)); + log(" Dumped flow graph to `flowmap-%d-flow.dot`.\n", debug_num); + log(" LUT inputs:"); + for (auto k_node : k) + log(" %s", log_signal(k_node)); + log(".\n"); + log(" LUT packed gates:"); + for (auto xi_node : xi) + log(" %s", log_signal(xi_node)); + log(".\n"); + } + + for (auto sink_succ : edges_fw[sink]) + worklist.insert(sink_succ); + } + + if (debug) + { + dump_dot_graph("flowmap-labeled.dot", GraphMode::Label); + log("Dumped labeled graph to `flowmap-labeled.dot`.\n"); + } + } + + int map_luts() + { + pool<RTLIL::SigBit> worklist = outputs; + while (!worklist.empty()) + { + auto lut_node = worklist.pop(); + lut_nodes.insert(lut_node); + for (auto input_node : lut_edges_bw[lut_node]) + if (!lut_nodes[input_node] && !inputs[input_node]) + worklist.insert(input_node); + } + + int depth = 0; + for (auto label : labels) + depth = max(depth, label.second); + log("Mapped to %d LUTs with maximum depth %d.\n", GetSize(lut_nodes), depth); + + if (debug) + { + dump_dot_lut_graph("flowmap-mapped.dot", GraphMode::Label); + log("Dumped mapped graph to `flowmap-mapped.dot`.\n"); + } + + return depth; + } + + void realize_derealize_lut(RTLIL::SigBit lut, pool<RTLIL::SigBit> *changed = nullptr) + { + pool<RTLIL::SigBit> worklist = {lut}; + while (!worklist.empty()) + { + auto lut = worklist.pop(); + if (inputs[lut]) + continue; + + bool realized_successors = false; + for (auto lut_succ : lut_edges_fw[lut]) + if (lut_nodes[lut_succ]) + realized_successors = true; + + if (realized_successors && !lut_nodes[lut]) + lut_nodes.insert(lut); + else if (!realized_successors && lut_nodes[lut]) + lut_nodes.erase(lut); + else + continue; + + for (auto lut_pred : lut_edges_bw[lut]) + worklist.insert(lut_pred); + + if (changed) + changed->insert(lut); + } + } + + void add_lut_edge(RTLIL::SigBit pred, RTLIL::SigBit succ, pool<RTLIL::SigBit> *changed = nullptr) + { + log_assert(!lut_edges_fw[pred][succ] && !lut_edges_bw[succ][pred]); + log_assert((int)lut_edges_bw[succ].size() < order); + + lut_edges_fw[pred].insert(succ); + lut_edges_bw[succ].insert(pred); + realize_derealize_lut(pred, changed); + + if (changed) + { + changed->insert(pred); + changed->insert(succ); + } + } + + void remove_lut_edge(RTLIL::SigBit pred, RTLIL::SigBit succ, pool<RTLIL::SigBit> *changed = nullptr) + { + log_assert(lut_edges_fw[pred][succ] && lut_edges_bw[succ][pred]); + + lut_edges_fw[pred].erase(succ); + lut_edges_bw[succ].erase(pred); + realize_derealize_lut(pred, changed); + + if (changed) + { + if (lut_nodes[pred]) + changed->insert(pred); + changed->insert(succ); + } + } + + pair<pool<RTLIL::SigBit>, pool<RTLIL::SigBit>> cut_lut_at_gate(RTLIL::SigBit lut, RTLIL::SigBit lut_gate) + { + pool<RTLIL::SigBit> gate_inputs = lut_edges_bw[lut]; + pool<RTLIL::SigBit> other_inputs; + pool<RTLIL::SigBit> worklist = {lut}; + while (!worklist.empty()) + { + auto node = worklist.pop(); + for (auto node_pred : edges_bw[node]) + { + if (node_pred == lut_gate) + continue; + if (lut_gates[lut][node_pred]) + worklist.insert(node_pred); + else + { + gate_inputs.erase(node_pred); + other_inputs.insert(node_pred); + } + } + } + return {gate_inputs, other_inputs}; + } + + void compute_lut_distances(dict<RTLIL::SigBit, int> &lut_distances, bool forward, + pool<RTLIL::SigBit> initial = {}, pool<RTLIL::SigBit> *changed = nullptr) + { + pool<RTLIL::SigBit> terminals = forward ? inputs : outputs; + auto &lut_edges_next = forward ? lut_edges_fw : lut_edges_bw; + auto &lut_edges_prev = forward ? lut_edges_bw : lut_edges_fw; + + if (initial.empty()) + initial = terminals; + for (auto node : initial) + lut_distances.erase(node); + + pool<RTLIL::SigBit> worklist = initial; + while (!worklist.empty()) + { + auto lut = worklist.pop(); + int lut_distance = 0; + if (forward && inputs[lut]) + lut_distance = labels[lut]; // to support (* $flowmap_level=n *) + for (auto lut_prev : lut_edges_prev[lut]) + if ((lut_nodes[lut_prev] || inputs[lut_prev]) && lut_distances.count(lut_prev)) + lut_distance = max(lut_distance, lut_distances[lut_prev] + 1); + if (!lut_distances.count(lut) || lut_distances[lut] != lut_distance) + { + lut_distances[lut] = lut_distance; + if (changed != nullptr && !inputs[lut]) + changed->insert(lut); + for (auto lut_next : lut_edges_next[lut]) + if (lut_nodes[lut_next] || inputs[lut_next]) + worklist.insert(lut_next); + } + } + } + + void check_lut_distances(const dict<RTLIL::SigBit, int> &lut_distances, bool forward) + { + dict<RTLIL::SigBit, int> gold_lut_distances; + compute_lut_distances(gold_lut_distances, forward); + for (auto lut_distance : lut_distances) + if (lut_nodes[lut_distance.first]) + log_assert(lut_distance.second == gold_lut_distances[lut_distance.first]); + } + + // LUT depth is the length of the longest path from any input in LUT fan-in to LUT. + // LUT altitude (for lack of a better term) is the length of the longest path from LUT to any output in LUT fan-out. + void update_lut_depths_altitudes(pool<RTLIL::SigBit> worklist = {}, pool<RTLIL::SigBit> *changed = nullptr) + { + compute_lut_distances(lut_depths, /*forward=*/true, worklist, changed); + compute_lut_distances(lut_altitudes, /*forward=*/false, worklist, changed); + if (debug_relax && !worklist.empty()) { + check_lut_distances(lut_depths, /*forward=*/true); + check_lut_distances(lut_altitudes, /*forward=*/false); + } + } + + // LUT critical output set is the set of outputs whose depth will increase (equivalently, slack will decrease) if the depth of + // the LUT increases. (This is referred to as RPOv for LUTv in the paper.) + void compute_lut_critical_outputs(dict<RTLIL::SigBit, pool<RTLIL::SigBit>> &lut_critical_outputs, + pool<RTLIL::SigBit> worklist = {}) + { + if (worklist.empty()) + worklist = lut_nodes; + + while (!worklist.empty()) + { + bool updated_some = false; + for (auto lut : worklist) + { + if (outputs[lut]) + lut_critical_outputs[lut] = {lut}; + else + { + bool all_succ_computed = true; + lut_critical_outputs[lut] = {}; + for (auto lut_succ : lut_edges_fw[lut]) + { + if (lut_nodes[lut_succ] && lut_depths[lut_succ] == lut_depths[lut] + 1) + { + if (lut_critical_outputs.count(lut_succ)) + lut_critical_outputs[lut].insert(lut_critical_outputs[lut_succ].begin(), lut_critical_outputs[lut_succ].end()); + else + { + all_succ_computed = false; + break; + } + } + } + if (!all_succ_computed) + { + lut_critical_outputs.erase(lut); + continue; + } + } + worklist.erase(lut); + updated_some = true; + } + log_assert(updated_some); + } + } + + // Invalidating LUT critical output sets is tricky, because increasing the depth of a LUT may take other, adjacent LUTs off the critical + // path to the output. Conservatively, if we increase depth of some LUT, every LUT in its input cone needs to have its critical output + // set invalidated, too. + pool<RTLIL::SigBit> invalidate_lut_critical_outputs(dict<RTLIL::SigBit, pool<RTLIL::SigBit>> &lut_critical_outputs, + pool<RTLIL::SigBit> worklist) + { + pool<RTLIL::SigBit> changed; + while (!worklist.empty()) + { + auto lut = worklist.pop(); + changed.insert(lut); + lut_critical_outputs.erase(lut); + for (auto lut_pred : lut_edges_bw[lut]) + { + if (lut_nodes[lut_pred] && !changed[lut_pred]) + { + changed.insert(lut_pred); + worklist.insert(lut_pred); + } + } + } + return changed; + } + + void check_lut_critical_outputs(const dict<RTLIL::SigBit, pool<RTLIL::SigBit>> &lut_critical_outputs) + { + dict<RTLIL::SigBit, pool<RTLIL::SigBit>> gold_lut_critical_outputs; + compute_lut_critical_outputs(gold_lut_critical_outputs); + for (auto lut_critical_output : lut_critical_outputs) + if (lut_nodes[lut_critical_output.first]) + log_assert(lut_critical_output.second == gold_lut_critical_outputs[lut_critical_output.first]); + } + + void update_lut_critical_outputs(dict<RTLIL::SigBit, pool<RTLIL::SigBit>> &lut_critical_outputs, + pool<RTLIL::SigBit> worklist = {}) + { + if (!worklist.empty()) + { + pool<RTLIL::SigBit> invalidated = invalidate_lut_critical_outputs(lut_critical_outputs, worklist); + compute_lut_critical_outputs(lut_critical_outputs, invalidated); + check_lut_critical_outputs(lut_critical_outputs); + } + else + compute_lut_critical_outputs(lut_critical_outputs); + } + + void update_breaking_node_potentials(dict<RTLIL::SigBit, dict<RTLIL::SigBit, int>> &potentials, + const dict<RTLIL::SigBit, pool<RTLIL::SigBit>> &lut_critical_outputs) + { + for (auto lut : lut_nodes) + { + if (potentials.count(lut)) + continue; + if (lut_gates[lut].size() == 1 || lut_slacks[lut] == 0) + continue; + + if (debug_relax) + log(" Computing potentials for LUT %s.\n", log_signal(lut)); + + for (auto lut_gate : lut_gates[lut]) + { + if (lut == lut_gate) + continue; + + if (debug_relax) + log(" Considering breaking node %s.\n", log_signal(lut_gate)); + + int r_ex, r_im, r_slk; + + auto cut_inputs = cut_lut_at_gate(lut, lut_gate); + pool<RTLIL::SigBit> gate_inputs = cut_inputs.first, other_inputs = cut_inputs.second; + if (gate_inputs.empty() && (int)other_inputs.size() >= order) + { + if (debug_relax) + log(" Breaking would result in a (k+1)-LUT.\n"); + continue; + } + + pool<RTLIL::SigBit> elim_fanin_luts; + for (auto gate_input : gate_inputs) + { + if (lut_edges_fw[gate_input].size() == 1) + { + log_assert(lut_edges_fw[gate_input][lut]); + elim_fanin_luts.insert(gate_input); + } + } + if (debug_relax) + { + if (!lut_nodes[lut_gate]) + log(" Breaking requires a new LUT.\n"); + if (!gate_inputs.empty()) + { + log(" Breaking eliminates LUT inputs"); + for (auto gate_input : gate_inputs) + log(" %s", log_signal(gate_input)); + log(".\n"); + } + if (!elim_fanin_luts.empty()) + { + log(" Breaking eliminates fan-in LUTs"); + for (auto elim_fanin_lut : elim_fanin_luts) + log(" %s", log_signal(elim_fanin_lut)); + log(".\n"); + } + } + r_ex = (lut_nodes[lut_gate] ? 0 : -1) + elim_fanin_luts.size(); + + pool<pair<RTLIL::SigBit, RTLIL::SigBit>> maybe_mergeable_luts; + + // Try to merge LUTv with one of its successors. + RTLIL::SigBit last_lut_succ; + int fanout = 0; + for (auto lut_succ : lut_edges_fw[lut]) + { + if (lut_nodes[lut_succ]) + { + fanout++; + last_lut_succ = lut_succ; + } + } + if (fanout == 1) + maybe_mergeable_luts.insert({lut, last_lut_succ}); + + // Try to merge LUTv with one of its predecessors. + for (auto lut_pred : other_inputs) + { + int fanout = 0; + for (auto lut_pred_succ : lut_edges_fw[lut_pred]) + if (lut_nodes[lut_pred_succ] || lut_pred_succ == lut_gate) + fanout++; + if (fanout == 1) + maybe_mergeable_luts.insert({lut_pred, lut}); + } + + // Try to merge LUTw with one of its predecessors. + for (auto lut_gate_pred : lut_edges_bw[lut_gate]) + { + int fanout = 0; + for (auto lut_gate_pred_succ : lut_edges_fw[lut_gate_pred]) + if (lut_nodes[lut_gate_pred_succ] || lut_gate_pred_succ == lut_gate) + fanout++; + if (fanout == 1) + maybe_mergeable_luts.insert({lut_gate_pred, lut_gate}); + } + + r_im = 0; + for (auto maybe_mergeable_pair : maybe_mergeable_luts) + { + log_assert(lut_edges_fw[maybe_mergeable_pair.first][maybe_mergeable_pair.second]); + pool<RTLIL::SigBit> unique_inputs; + for (auto fst_lut_pred : lut_edges_bw[maybe_mergeable_pair.first]) + if (lut_nodes[fst_lut_pred]) + unique_inputs.insert(fst_lut_pred); + for (auto snd_lut_pred : lut_edges_bw[maybe_mergeable_pair.second]) + if (lut_nodes[snd_lut_pred]) + unique_inputs.insert(snd_lut_pred); + unique_inputs.erase(maybe_mergeable_pair.first); + if ((int)unique_inputs.size() <= order) + { + if (debug_relax) + log(" Breaking may allow merging %s and %s.\n", + log_signal(maybe_mergeable_pair.first), log_signal(maybe_mergeable_pair.second)); + r_im++; + } + } + + int lut_gate_depth; + if (lut_nodes[lut_gate]) + lut_gate_depth = lut_depths[lut_gate]; + else + { + lut_gate_depth = 0; + for (auto lut_gate_pred : lut_edges_bw[lut_gate]) + lut_gate_depth = max(lut_gate_depth, lut_depths[lut_gate_pred] + 1); + } + if (lut_depths[lut] >= lut_gate_depth + 1) + r_slk = 0; + else + { + int depth_delta = lut_gate_depth + 1 - lut_depths[lut]; + if (depth_delta > lut_slacks[lut]) + { + if (debug_relax) + log(" Breaking would increase depth by %d, which is more than available slack.\n", depth_delta); + continue; + } + + if (debug_relax) + { + log(" Breaking increases depth of LUT by %d.\n", depth_delta); + if (lut_critical_outputs.at(lut).size()) + { + log(" Breaking decreases slack of outputs"); + for (auto lut_critical_output : lut_critical_outputs.at(lut)) + { + log(" %s", log_signal(lut_critical_output)); + log_assert(lut_slacks[lut_critical_output] > 0); + } + log(".\n"); + } + } + r_slk = lut_critical_outputs.at(lut).size() * depth_delta; + } + + int p = 100 * (r_alpha * r_ex + r_beta * r_im + r_gamma) / (r_slk + 1); + if (debug_relax) + log(" Potential for breaking node %s: %d (Rex=%d, Rim=%d, Rslk=%d).\n", + log_signal(lut_gate), p, r_ex, r_im, r_slk); + potentials[lut][lut_gate] = p; + } + } + } + + bool relax_depth_for_bound(bool first, int depth_bound, dict<RTLIL::SigBit, pool<RTLIL::SigBit>> &lut_critical_outputs) + { + int initial_count = GetSize(lut_nodes); + + for (auto node : lut_nodes) + { + lut_slacks[node] = depth_bound - (lut_depths[node] + lut_altitudes[node]); + log_assert(lut_slacks[node] >= 0); + } + if (debug) + { + dump_dot_lut_graph(stringf("flowmap-relax-%d-initial.dot", depth_bound), GraphMode::Slack); + log(" Dumped initial slack graph to `flowmap-relax-%d-initial.dot`.\n", depth_bound); + } + + dict<RTLIL::SigBit, dict<RTLIL::SigBit, int>> potentials; + for (int break_num = 1; ; break_num++) + { + update_breaking_node_potentials(potentials, lut_critical_outputs); + + if (potentials.empty()) + { + log(" Relaxed to %d (+%d) LUTs.\n", GetSize(lut_nodes), GetSize(lut_nodes) - initial_count); + if (!first && break_num == 1) + { + log(" Design fully relaxed.\n"); + return true; + } + else + { + log(" Slack exhausted.\n"); + break; + } + } + + RTLIL::SigBit breaking_lut, breaking_gate; + int best_potential = INT_MIN; + for (auto lut_gate_potentials : potentials) + { + for (auto gate_potential : lut_gate_potentials.second) + { + if (gate_potential.second > best_potential) + { + breaking_lut = lut_gate_potentials.first; + breaking_gate = gate_potential.first; + best_potential = gate_potential.second; + } + } + } + log(" Breaking LUT %s to %s LUT %s (potential %d).\n", + log_signal(breaking_lut), lut_nodes[breaking_gate] ? "reuse" : "extract", log_signal(breaking_gate), best_potential); + + if (debug_relax) + log(" Removing breaking gate %s from LUT.\n", log_signal(breaking_gate)); + lut_gates[breaking_lut].erase(breaking_gate); + + auto cut_inputs = cut_lut_at_gate(breaking_lut, breaking_gate); + pool<RTLIL::SigBit> gate_inputs = cut_inputs.first, other_inputs = cut_inputs.second; + + pool<RTLIL::SigBit> worklist = lut_gates[breaking_lut]; + pool<RTLIL::SigBit> elim_gates = gate_inputs; + while (!worklist.empty()) + { + auto lut_gate = worklist.pop(); + bool all_gate_preds_elim = true; + for (auto lut_gate_pred : edges_bw[lut_gate]) + if (!elim_gates[lut_gate_pred]) + all_gate_preds_elim = false; + if (all_gate_preds_elim) + { + if (debug_relax) + log(" Removing gate %s from LUT.\n", log_signal(lut_gate)); + lut_gates[breaking_lut].erase(lut_gate); + for (auto lut_gate_succ : edges_fw[lut_gate]) + worklist.insert(lut_gate_succ); + } + } + log_assert(!lut_gates[breaking_lut].empty()); + + pool<RTLIL::SigBit> directly_affected_nodes = {breaking_lut}; + for (auto gate_input : gate_inputs) + { + if (debug_relax) + log(" Removing LUT edge %s -> %s.\n", log_signal(gate_input), log_signal(breaking_lut)); + remove_lut_edge(gate_input, breaking_lut, &directly_affected_nodes); + } + if (debug_relax) + log(" Adding LUT edge %s -> %s.\n", log_signal(breaking_gate), log_signal(breaking_lut)); + add_lut_edge(breaking_gate, breaking_lut, &directly_affected_nodes); + + if (debug_relax) + log(" Updating slack and potentials.\n"); + + pool<RTLIL::SigBit> indirectly_affected_nodes = {}; + update_lut_depths_altitudes(directly_affected_nodes, &indirectly_affected_nodes); + update_lut_critical_outputs(lut_critical_outputs, indirectly_affected_nodes); + for (auto node : indirectly_affected_nodes) + { + lut_slacks[node] = depth_bound - (lut_depths[node] + lut_altitudes[node]); + log_assert(lut_slacks[node] >= 0); + if (debug_relax) + log(" LUT %s now has depth %d and slack %d.\n", log_signal(node), lut_depths[node], lut_slacks[node]); + } + + worklist = indirectly_affected_nodes; + pool<RTLIL::SigBit> visited; + while (!worklist.empty()) + { + auto node = worklist.pop(); + visited.insert(node); + potentials.erase(node); + // We are invalidating the entire output cone of the gate IR node, not just of the LUT IR node. This is done to also invalidate + // all LUTs that could contain one of the indirectly affected nodes as a *part* of them, as they may not be in the output cone + // of any of the LUT IR nodes, e.g. if we have a LUT IR node A and node B as predecessors of node C, where node B includes all + // gates from node A. + for (auto node_succ : edges_fw[node]) + if (!visited[node_succ]) + worklist.insert(node_succ); + } + + if (debug) + { + dump_dot_lut_graph(stringf("flowmap-relax-%d-break-%d.dot", depth_bound, break_num), GraphMode::Slack); + log(" Dumped slack graph after break %d to `flowmap-relax-%d-break-%d.dot`.\n", break_num, depth_bound, break_num); + } + } + + return false; + } + + void optimize_area(int depth, int optarea) + { + dict<RTLIL::SigBit, pool<RTLIL::SigBit>> lut_critical_outputs; + update_lut_depths_altitudes(); + update_lut_critical_outputs(lut_critical_outputs); + + for (int depth_bound = depth; depth_bound <= depth + optarea; depth_bound++) + { + log("Relaxing with depth bound %d.\n", depth_bound); + bool fully_relaxed = relax_depth_for_bound(depth_bound == depth, depth_bound, lut_critical_outputs); + + if (fully_relaxed) + break; + } + } + + void pack_cells(int minlut) + { + ConstEval ce(module); + for (auto input_node : inputs) + ce.stop(input_node); + + pool<RTLIL::SigBit> mapped_nodes; + for (auto node : lut_nodes) + { + if (node_origins.count(node)) + { + auto origin = node_origins[node]; + if (origin.cell->getPort(origin.port).size() == 1) + log("Packing %s.%s.%s (%s).\n", + log_id(module), log_id(origin.cell), origin.port.c_str(), log_signal(node)); + else + log("Packing %s.%s.%s [%d] (%s).\n", + log_id(module), log_id(origin.cell), origin.port.c_str(), origin.offset, log_signal(node)); + } + else + { + log("Packing %s.%s.\n", log_id(module), log_signal(node)); + } + + for (auto gate_node : lut_gates[node]) + { + log_assert(node_origins.count(gate_node)); + + if (gate_node == node) + continue; + + auto gate_origin = node_origins[gate_node]; + if (gate_origin.cell->getPort(gate_origin.port).size() == 1) + log(" Packing %s.%s.%s (%s).\n", + log_id(module), log_id(gate_origin.cell), gate_origin.port.c_str(), log_signal(gate_node)); + else + log(" Packing %s.%s.%s [%d] (%s).\n", + log_id(module), log_id(gate_origin.cell), gate_origin.port.c_str(), gate_origin.offset, log_signal(gate_node)); + } + + vector<RTLIL::SigBit> input_nodes(lut_edges_bw[node].begin(), lut_edges_bw[node].end()); + RTLIL::Const lut_table(State::Sx, max(1 << input_nodes.size(), 1 << minlut)); + unsigned const mask = 1 << input_nodes.size(); + for (unsigned i = 0; i < mask; i++) + { + ce.push(); + for (size_t n = 0; n < input_nodes.size(); n++) + ce.set(input_nodes[n], ((i >> n) & 1) ? State::S1 : State::S0); + + RTLIL::SigSpec value = node, undef; + if (!ce.eval(value, undef)) + { + string env; + for (auto input_node : input_nodes) + env += stringf(" %s = %s\n", log_signal(input_node), log_signal(ce.values_map(input_node))); + log_error("Cannot evaluate %s because %s is not defined.\nEvaluation environment:\n%s", + log_signal(node), log_signal(undef), env.c_str()); + } + + lut_table[i] = value.as_bool() ? State::S1 : State::S0; + ce.pop(); + } + + RTLIL::SigSpec lut_a, lut_y = node; + for (auto input_node : input_nodes) + lut_a.append_bit(input_node); + lut_a.append(RTLIL::Const(State::Sx, minlut - input_nodes.size())); + + RTLIL::Cell *lut = module->addLut(NEW_ID, lut_a, lut_y, lut_table); + mapped_nodes.insert(node); + for (auto gate_node : lut_gates[node]) + { + auto gate_origin = node_origins[gate_node]; + lut->add_strpool_attribute(ID(src), gate_origin.cell->get_strpool_attribute(ID(src))); + packed_count++; + } + lut_count++; + lut_area += lut_table.size(); + + if ((int)input_nodes.size() >= minlut) + log(" Packed into a %d-LUT %s.%s.\n", GetSize(input_nodes), log_id(module), log_id(lut)); + else + log(" Packed into a %d-LUT %s.%s (implemented as %d-LUT).\n", GetSize(input_nodes), log_id(module), log_id(lut), minlut); + } + + for (auto node : mapped_nodes) + { + auto origin = node_origins[node]; + RTLIL::SigSpec driver = origin.cell->getPort(origin.port); + driver[origin.offset] = module->addWire(NEW_ID); + origin.cell->setPort(origin.port, driver); + } + } + + FlowmapWorker(int order, int minlut, pool<IdString> cell_types, int r_alpha, int r_beta, int r_gamma, + bool relax, int optarea, bool debug, bool debug_relax, + RTLIL::Module *module) : + order(order), r_alpha(r_alpha), r_beta(r_beta), r_gamma(r_gamma), debug(debug), debug_relax(debug_relax), + module(module), sigmap(module), index(module) + { + log("Labeling cells.\n"); + discover_nodes(cell_types); + label_nodes(); + int depth = map_luts(); + + if (relax) + { + log("\n"); + log("Optimizing area.\n"); + optimize_area(depth, optarea); + } + + log("\n"); + log("Packing cells.\n"); + pack_cells(minlut); + } +}; + +static void split(std::vector<std::string> &tokens, const std::string &text, char sep) +{ + size_t start = 0, end = 0; + while ((end = text.find(sep, start)) != std::string::npos) { + tokens.push_back(text.substr(start, end - start)); + start = end + 1; + } + tokens.push_back(text.substr(start)); +} + +struct FlowmapPass : public Pass { + FlowmapPass() : Pass("flowmap", "pack LUTs with FlowMap") { } + void help() YS_OVERRIDE + { + // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| + log("\n"); + log(" flowmap [options] [selection]\n"); + log("\n"); + log("This pass uses the FlowMap technology mapping algorithm to pack logic gates\n"); + log("into k-LUTs with optimal depth. It allows mapping any circuit elements that can\n"); + log("be evaluated with the `eval` pass, including cells with multiple output ports\n"); + log("and multi-bit input and output ports.\n"); + log("\n"); + log(" -maxlut k\n"); + log(" perform technology mapping for a k-LUT architecture. if not specified,\n"); + log(" defaults to 3.\n"); + log("\n"); + log(" -minlut n\n"); + log(" only produce n-input or larger LUTs. if not specified, defaults to 1.\n"); + log("\n"); + log(" -cells <cell>[,<cell>,...]\n"); + log(" map specified cells. if not specified, maps $_NOT_, $_AND_, $_OR_,\n"); + log(" $_XOR_ and $_MUX_, which are the outputs of the `simplemap` pass.\n"); + log("\n"); + log(" -relax\n"); + log(" perform depth relaxation and area minimization.\n"); + log("\n"); + log(" -r-alpha n, -r-beta n, -r-gamma n\n"); + log(" parameters of depth relaxation heuristic potential function.\n"); + log(" if not specified, alpha=8, beta=2, gamma=1.\n"); + log("\n"); + log(" -optarea n\n"); + log(" optimize for area by trading off at most n logic levels for fewer LUTs.\n"); + log(" n may be zero, to optimize for area without increasing depth.\n"); + log(" implies -relax.\n"); + log("\n"); + log(" -debug\n"); + log(" dump intermediate graphs.\n"); + log("\n"); + log(" -debug-relax\n"); + log(" explain decisions performed during depth relaxation.\n"); + log("\n"); + } + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE + { + int order = 3; + int minlut = 1; + vector<string> cells; + bool relax = false; + int r_alpha = 8, r_beta = 2, r_gamma = 1; + int optarea = 0; + bool debug = false, debug_relax = false; + + size_t argidx; + for (argidx = 1; argidx < args.size(); argidx++) + { + if (args[argidx] == "-maxlut" && argidx + 1 < args.size()) + { + order = atoi(args[++argidx].c_str()); + continue; + } + if (args[argidx] == "-minlut" && argidx + 1 < args.size()) + { + minlut = atoi(args[++argidx].c_str()); + continue; + } + if (args[argidx] == "-cells" && argidx + 1 < args.size()) + { + split(cells, args[++argidx], ','); + continue; + } + if (args[argidx] == "-relax") + { + relax = true; + continue; + } + if (args[argidx] == "-r-alpha" && argidx + 1 < args.size()) + { + r_alpha = atoi(args[++argidx].c_str()); + continue; + } + if (args[argidx] == "-r-beta" && argidx + 1 < args.size()) + { + r_beta = atoi(args[++argidx].c_str()); + continue; + } + if (args[argidx] == "-r-gamma" && argidx + 1 < args.size()) + { + r_gamma = atoi(args[++argidx].c_str()); + continue; + } + if (args[argidx] == "-optarea" && argidx + 1 < args.size()) + { + relax = true; + optarea = atoi(args[++argidx].c_str()); + continue; + } + if (args[argidx] == "-debug") + { + debug = true; + continue; + } + if (args[argidx] == "-debug-relax") + { + debug = debug_relax = true; + continue; + } + break; + } + extra_args(args, argidx, design); + + pool<IdString> cell_types; + if (!cells.empty()) + { + for (auto &cell : cells) + cell_types.insert(cell); + } + else + { + cell_types = {ID($_NOT_), ID($_AND_), ID($_OR_), ID($_XOR_), ID($_MUX_)}; + } + + const char *algo_r = relax ? "-r" : ""; + log_header(design, "Executing FLOWMAP pass (pack LUTs with FlowMap%s).\n", algo_r); + + int gate_count = 0, lut_count = 0, packed_count = 0; + int gate_area = 0, lut_area = 0; + for (auto module : design->selected_modules()) + { + FlowmapWorker worker(order, minlut, cell_types, r_alpha, r_beta, r_gamma, relax, optarea, debug, debug_relax, module); + gate_count += worker.gate_count; + lut_count += worker.lut_count; + packed_count += worker.packed_count; + gate_area += worker.gate_area; + lut_area += worker.lut_area; + } + + log("\n"); + log("Packed %d cells (%d of them duplicated) into %d LUTs.\n", packed_count, packed_count - gate_count, lut_count); + log("Solution takes %.1f%% of original gate area.\n", lut_area * 100.0 / gate_area); + } +} FlowmapPass; + +PRIVATE_NAMESPACE_END diff --git a/passes/techmap/hilomap.cc b/passes/techmap/hilomap.cc index 82cecac26..9ec651aef 100644 --- a/passes/techmap/hilomap.cc +++ b/passes/techmap/hilomap.cc @@ -55,7 +55,7 @@ void hilomap_worker(RTLIL::SigSpec &sig) struct HilomapPass : public Pass { HilomapPass() : Pass("hilomap", "technology mapping of constant hi- and/or lo-drivers") { } - virtual void help() + void help() YS_OVERRIDE { log("\n"); log(" hilomap [options] [selection]\n"); @@ -74,7 +74,7 @@ struct HilomapPass : public Pass { log(" each constant bit.\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing HILOMAP pass (mapping to constant drivers).\n"); diff --git a/passes/techmap/insbuf.cc b/passes/techmap/insbuf.cc index aa81468dc..2173049b4 100644 --- a/passes/techmap/insbuf.cc +++ b/passes/techmap/insbuf.cc @@ -25,7 +25,7 @@ PRIVATE_NAMESPACE_BEGIN struct InsbufPass : public Pass { InsbufPass() : Pass("insbuf", "insert buffer cells for connected wires") { } - virtual void help() + void help() YS_OVERRIDE { log("\n"); log(" insbuf [options] [selection]\n"); @@ -37,7 +37,7 @@ struct InsbufPass : public Pass { log(" call to \"clean\" will remove all $_BUF_ in the design.)\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing INSBUF pass (insert buffer cells for connected wires).\n"); diff --git a/passes/techmap/iopadmap.cc b/passes/techmap/iopadmap.cc index 4acbf7c0d..531ac2b99 100644 --- a/passes/techmap/iopadmap.cc +++ b/passes/techmap/iopadmap.cc @@ -34,7 +34,7 @@ void split_portname_pair(std::string &port1, std::string &port2) struct IopadmapPass : public Pass { IopadmapPass() : Pass("iopadmap", "technology mapping of i/o pads (or buffers)") { } - virtual void help() + void help() YS_OVERRIDE { log("\n"); log(" iopadmap [options] [selection]\n"); @@ -64,6 +64,11 @@ struct IopadmapPass : public Pass { log(" of the tristate driver and the 2nd portname is the internal output\n"); log(" buffering the external signal.\n"); log("\n"); + log(" -ignore <celltype> <portname>[:<portname>]*\n"); + log(" Skips mapping inputs/outputs that are already connected to given\n"); + log(" ports of the given cell. Can be used multiple times. This is in\n"); + log(" addition to the cells specified as mapping targets.\n"); + log("\n"); log(" -widthparam <param_name>\n"); log(" Use the specified parameter name to set the port width.\n"); log("\n"); @@ -78,16 +83,17 @@ struct IopadmapPass : public Pass { log("Tristate PADS (-toutpad, -tinoutpad) always operate in -bits mode.\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing IOPADMAP pass (mapping inputs/outputs to IO-PAD cells).\n"); - std::string inpad_celltype, inpad_portname, inpad_portname2; - std::string outpad_celltype, outpad_portname, outpad_portname2; - std::string inoutpad_celltype, inoutpad_portname, inoutpad_portname2; - std::string toutpad_celltype, toutpad_portname, toutpad_portname2, toutpad_portname3; - std::string tinoutpad_celltype, tinoutpad_portname, tinoutpad_portname2, tinoutpad_portname3, tinoutpad_portname4; + std::string inpad_celltype, inpad_portname_o, inpad_portname_pad; + std::string outpad_celltype, outpad_portname_i, outpad_portname_pad; + std::string inoutpad_celltype, inoutpad_portname_io, inoutpad_portname_pad; + std::string toutpad_celltype, toutpad_portname_oe, toutpad_portname_i, toutpad_portname_pad; + std::string tinoutpad_celltype, tinoutpad_portname_oe, tinoutpad_portname_o, tinoutpad_portname_i, tinoutpad_portname_pad; std::string widthparam, nameparam; + pool<pair<IdString, IdString>> ignore; bool flag_bits = false; size_t argidx; @@ -96,35 +102,47 @@ struct IopadmapPass : public Pass { std::string arg = args[argidx]; if (arg == "-inpad" && argidx+2 < args.size()) { inpad_celltype = args[++argidx]; - inpad_portname = args[++argidx]; - split_portname_pair(inpad_portname, inpad_portname2); + inpad_portname_o = args[++argidx]; + split_portname_pair(inpad_portname_o, inpad_portname_pad); continue; } if (arg == "-outpad" && argidx+2 < args.size()) { outpad_celltype = args[++argidx]; - outpad_portname = args[++argidx]; - split_portname_pair(outpad_portname, outpad_portname2); + outpad_portname_i = args[++argidx]; + split_portname_pair(outpad_portname_i, outpad_portname_pad); continue; } if (arg == "-inoutpad" && argidx+2 < args.size()) { inoutpad_celltype = args[++argidx]; - inoutpad_portname = args[++argidx]; - split_portname_pair(inoutpad_portname, inoutpad_portname2); + inoutpad_portname_io = args[++argidx]; + split_portname_pair(inoutpad_portname_io, inoutpad_portname_pad); continue; } if (arg == "-toutpad" && argidx+2 < args.size()) { toutpad_celltype = args[++argidx]; - toutpad_portname = args[++argidx]; - split_portname_pair(toutpad_portname, toutpad_portname2); - split_portname_pair(toutpad_portname2, toutpad_portname3); + toutpad_portname_oe = args[++argidx]; + split_portname_pair(toutpad_portname_oe, toutpad_portname_i); + split_portname_pair(toutpad_portname_i, toutpad_portname_pad); continue; } if (arg == "-tinoutpad" && argidx+2 < args.size()) { tinoutpad_celltype = args[++argidx]; - tinoutpad_portname = args[++argidx]; - split_portname_pair(tinoutpad_portname, tinoutpad_portname2); - split_portname_pair(tinoutpad_portname2, tinoutpad_portname3); - split_portname_pair(tinoutpad_portname3, tinoutpad_portname4); + tinoutpad_portname_oe = args[++argidx]; + split_portname_pair(tinoutpad_portname_oe, tinoutpad_portname_o); + split_portname_pair(tinoutpad_portname_o, tinoutpad_portname_i); + split_portname_pair(tinoutpad_portname_i, tinoutpad_portname_pad); + continue; + } + if (arg == "-ignore" && argidx+2 < args.size()) { + std::string ignore_celltype = args[++argidx]; + std::string ignore_portname = args[++argidx]; + std::string ignore_portname2; + while (!ignore_portname.empty()) { + split_portname_pair(ignore_portname, ignore_portname2); + ignore.insert(make_pair(RTLIL::escape_id(ignore_celltype), RTLIL::escape_id(ignore_portname))); + + ignore_portname = ignore_portname2; + } continue; } if (arg == "-widthparam" && argidx+1 < args.size()) { @@ -143,116 +161,146 @@ struct IopadmapPass : public Pass { } extra_args(args, argidx, design); + if (!inpad_portname_pad.empty()) + ignore.insert(make_pair(RTLIL::escape_id(inpad_celltype), RTLIL::escape_id(inpad_portname_pad))); + if (!outpad_portname_pad.empty()) + ignore.insert(make_pair(RTLIL::escape_id(outpad_celltype), RTLIL::escape_id(outpad_portname_pad))); + if (!inoutpad_portname_pad.empty()) + ignore.insert(make_pair(RTLIL::escape_id(inoutpad_celltype), RTLIL::escape_id(inoutpad_portname_pad))); + if (!toutpad_portname_pad.empty()) + ignore.insert(make_pair(RTLIL::escape_id(toutpad_celltype), RTLIL::escape_id(toutpad_portname_pad))); + if (!tinoutpad_portname_pad.empty()) + ignore.insert(make_pair(RTLIL::escape_id(tinoutpad_celltype), RTLIL::escape_id(tinoutpad_portname_pad))); + + for (auto module : design->modules()) + if (module->get_blackbox_attribute()) + for (auto wire : module->wires()) + if (wire->get_bool_attribute("\\iopad_external_pin")) + ignore.insert(make_pair(module->name, wire->name)); + for (auto module : design->selected_modules()) { - dict<IdString, pool<int>> skip_wires; + pool<SigBit> skip_wire_bits; + dict<Wire *, dict<int, pair<Cell *, IdString>>> rewrite_bits; + + for (auto cell : module->cells()) + for (auto port : cell->connections()) + if (ignore.count(make_pair(cell->type, port.first))) + for (auto bit : port.second) + skip_wire_bits.insert(bit); if (!toutpad_celltype.empty() || !tinoutpad_celltype.empty()) { - SigMap sigmap(module); - dict<SigBit, pair<IdString, pool<IdString>>> tbuf_bits; + dict<SigBit, Cell *> tbuf_bits; + pool<SigBit> driven_bits; + // Gather tristate buffers and always-on drivers. for (auto cell : module->cells()) - if (cell->type == "$_TBUF_") { - SigBit bit = sigmap(cell->getPort("\\Y").as_bit()); - tbuf_bits[bit].first = cell->name; + if (cell->type == ID($_TBUF_)) { + SigBit bit = cell->getPort(ID::Y).as_bit(); + tbuf_bits[bit] = cell; + } else { + for (auto port : cell->connections()) + if (!cell->known() || cell->output(port.first)) + for (auto bit : port.second) + driven_bits.insert(bit); } - for (auto cell : module->cells()) - for (auto port : cell->connections()) - for (auto bit : sigmap(port.second)) - if (tbuf_bits.count(bit)) - tbuf_bits.at(bit).second.insert(cell->name); + // If a wire is a target of an assignment, it is driven, unless the source is 'z. + for (auto &conn : module->connections()) + for (int i = 0; i < GetSize(conn.first); i++) { + SigBit dstbit = conn.first[i]; + SigBit srcbit = conn.second[i]; + if (!srcbit.wire && srcbit.data == State::Sz) + continue; + driven_bits.insert(dstbit); + } for (auto wire : module->selected_wires()) { if (!wire->port_output) continue; + // Don't handle inout ports if we have no suitable buffer type. + if (wire->port_input && tinoutpad_celltype.empty()) + continue; + + // likewise for output ports. + if (!wire->port_input && toutpad_celltype.empty()) + continue; + for (int i = 0; i < GetSize(wire); i++) { SigBit wire_bit(wire, i); - SigBit mapped_wire_bit = sigmap(wire_bit); - - if (tbuf_bits.count(mapped_wire_bit) == 0) - continue; + Cell *tbuf_cell = nullptr; - auto &tbuf_cache = tbuf_bits.at(mapped_wire_bit); - Cell *tbuf_cell = module->cell(tbuf_cache.first); - - if (tbuf_cell == nullptr) + if (skip_wire_bits.count(wire_bit)) continue; - SigBit en_sig = tbuf_cell->getPort("\\E").as_bit(); - SigBit data_sig = tbuf_cell->getPort("\\A").as_bit(); + if (tbuf_bits.count(wire_bit)) + tbuf_cell = tbuf_bits.at(wire_bit); + + SigBit en_sig; + SigBit data_sig; + bool is_driven = driven_bits.count(wire_bit); + + if (tbuf_cell != nullptr) { + // Found a tristate buffer — use it. + en_sig = tbuf_cell->getPort(ID(E)).as_bit(); + data_sig = tbuf_cell->getPort(ID::A).as_bit(); + } else if (is_driven) { + // No tristate buffer, but an always-on driver is present. + // If this is an inout port, we're creating a tinoutpad + // anyway, just with a constant 1 as enable. + if (!wire->port_input) + continue; + en_sig = SigBit(State::S1); + data_sig = wire_bit; + } else { + // No driver on a wire. Create a tristate pad with always-0 + // enable. + en_sig = SigBit(State::S0); + data_sig = SigBit(State::Sx); + } - if (wire->port_input && !tinoutpad_celltype.empty()) + if (wire->port_input) { log("Mapping port %s.%s[%d] using %s.\n", log_id(module), log_id(wire), i, tinoutpad_celltype.c_str()); Cell *cell = module->addCell(NEW_ID, RTLIL::escape_id(tinoutpad_celltype)); - Wire *owire = module->addWire(NEW_ID); - - cell->setPort(RTLIL::escape_id(tinoutpad_portname), en_sig); - cell->setPort(RTLIL::escape_id(tinoutpad_portname2), owire); - cell->setPort(RTLIL::escape_id(tinoutpad_portname3), data_sig); - cell->setPort(RTLIL::escape_id(tinoutpad_portname4), wire_bit); - cell->attributes["\\keep"] = RTLIL::Const(1); - - for (auto cn : tbuf_cache.second) { - auto c = module->cell(cn); - if (c == nullptr) - continue; - for (auto port : c->connections()) { - SigSpec sig = port.second; - bool newsig = false; - for (auto &bit : sig) - if (sigmap(bit) == mapped_wire_bit) { - bit = owire; - newsig = true; - } - if (newsig) - c->setPort(port.first, sig); - } - } - - module->remove(tbuf_cell); - skip_wires[wire->name].insert(i); - continue; - } - - if (!wire->port_input && !toutpad_celltype.empty()) - { + cell->setPort(RTLIL::escape_id(tinoutpad_portname_oe), en_sig); + cell->attributes[ID::keep] = RTLIL::Const(1); + + if (tbuf_cell) { + module->remove(tbuf_cell); + cell->setPort(RTLIL::escape_id(tinoutpad_portname_o), wire_bit); + cell->setPort(RTLIL::escape_id(tinoutpad_portname_i), data_sig); + } else if (is_driven) { + cell->setPort(RTLIL::escape_id(tinoutpad_portname_i), wire_bit); + } else { + cell->setPort(RTLIL::escape_id(tinoutpad_portname_o), wire_bit); + cell->setPort(RTLIL::escape_id(tinoutpad_portname_i), data_sig); + } + skip_wire_bits.insert(wire_bit); + if (!tinoutpad_portname_pad.empty()) + rewrite_bits[wire][i] = make_pair(cell, RTLIL::escape_id(tinoutpad_portname_pad)); + } else { log("Mapping port %s.%s[%d] using %s.\n", log_id(module), log_id(wire), i, toutpad_celltype.c_str()); Cell *cell = module->addCell(NEW_ID, RTLIL::escape_id(toutpad_celltype)); - cell->setPort(RTLIL::escape_id(toutpad_portname), en_sig); - cell->setPort(RTLIL::escape_id(toutpad_portname2), data_sig); - cell->setPort(RTLIL::escape_id(toutpad_portname3), wire_bit); - cell->attributes["\\keep"] = RTLIL::Const(1); - - for (auto cn : tbuf_cache.second) { - auto c = module->cell(cn); - if (c == nullptr) - continue; - for (auto port : c->connections()) { - SigSpec sig = port.second; - bool newsig = false; - for (auto &bit : sig) - if (sigmap(bit) == mapped_wire_bit) { - bit = data_sig; - newsig = true; - } - if (newsig) - c->setPort(port.first, sig); - } - } + cell->setPort(RTLIL::escape_id(toutpad_portname_oe), en_sig); + cell->setPort(RTLIL::escape_id(toutpad_portname_i), data_sig); + cell->attributes[ID::keep] = RTLIL::Const(1); - module->remove(tbuf_cell); - skip_wires[wire->name].insert(i); - continue; + if (tbuf_cell) { + module->remove(tbuf_cell); + module->connect(wire_bit, data_sig); + } + skip_wire_bits.insert(wire_bit); + if (!toutpad_portname_pad.empty()) + rewrite_bits[wire][i] = make_pair(cell, RTLIL::escape_id(toutpad_portname_pad)); } } } @@ -263,14 +311,15 @@ struct IopadmapPass : public Pass { if (!wire->port_id) continue; - std::string celltype, portname, portname2; + std::string celltype, portname_int, portname_pad; pool<int> skip_bit_indices; - if (skip_wires.count(wire->name)) { - if (!flag_bits) - continue; - skip_bit_indices = skip_wires.at(wire->name); - } + for (int i = 0; i < GetSize(wire); i++) + if (skip_wire_bits.count(SigBit(wire, i))) + skip_bit_indices.insert(i); + + if (GetSize(wire) == GetSize(skip_bit_indices)) + continue; if (wire->port_input && !wire->port_output) { if (inpad_celltype.empty()) { @@ -278,8 +327,8 @@ struct IopadmapPass : public Pass { continue; } celltype = inpad_celltype; - portname = inpad_portname; - portname2 = inpad_portname2; + portname_int = inpad_portname_o; + portname_pad = inpad_portname_pad; } else if (!wire->port_input && wire->port_output) { if (outpad_celltype.empty()) { @@ -287,8 +336,8 @@ struct IopadmapPass : public Pass { continue; } celltype = outpad_celltype; - portname = outpad_portname; - portname2 = outpad_portname2; + portname_int = outpad_portname_i; + portname_pad = outpad_portname_pad; } else if (wire->port_input && wire->port_output) { if (inoutpad_celltype.empty()) { @@ -296,8 +345,8 @@ struct IopadmapPass : public Pass { continue; } celltype = inoutpad_celltype; - portname = inoutpad_portname; - portname2 = inoutpad_portname2; + portname_int = inoutpad_portname_io; + portname_pad = inoutpad_portname_pad; } else log_abort(); @@ -308,47 +357,70 @@ struct IopadmapPass : public Pass { log("Mapping port %s.%s using %s.\n", RTLIL::id2cstr(module->name), RTLIL::id2cstr(wire->name), celltype.c_str()); - RTLIL::Wire *new_wire = NULL; - if (!portname2.empty()) { - new_wire = module->addWire(NEW_ID, wire); - module->swap_names(new_wire, wire); - wire->attributes.clear(); - } - if (flag_bits) { for (int i = 0; i < wire->width; i++) { - if (skip_bit_indices.count(i)) { - if (wire->port_output) - module->connect(SigSpec(new_wire, i), SigSpec(wire, i)); - else - module->connect(SigSpec(wire, i), SigSpec(new_wire, i)); + if (skip_bit_indices.count(i)) continue; - } + + SigBit wire_bit(wire, i); RTLIL::Cell *cell = module->addCell(NEW_ID, RTLIL::escape_id(celltype)); - cell->setPort(RTLIL::escape_id(portname), RTLIL::SigSpec(wire, i)); - if (!portname2.empty()) - cell->setPort(RTLIL::escape_id(portname2), RTLIL::SigSpec(new_wire, i)); + cell->setPort(RTLIL::escape_id(portname_int), wire_bit); + + if (!portname_pad.empty()) + rewrite_bits[wire][i] = make_pair(cell, RTLIL::escape_id(portname_pad)); if (!widthparam.empty()) cell->parameters[RTLIL::escape_id(widthparam)] = RTLIL::Const(1); if (!nameparam.empty()) cell->parameters[RTLIL::escape_id(nameparam)] = RTLIL::Const(stringf("%s[%d]", RTLIL::id2cstr(wire->name), i)); - cell->attributes["\\keep"] = RTLIL::Const(1); + cell->attributes[ID::keep] = RTLIL::Const(1); } } else { RTLIL::Cell *cell = module->addCell(NEW_ID, RTLIL::escape_id(celltype)); - cell->setPort(RTLIL::escape_id(portname), RTLIL::SigSpec(wire)); - if (!portname2.empty()) - cell->setPort(RTLIL::escape_id(portname2), RTLIL::SigSpec(new_wire)); + cell->setPort(RTLIL::escape_id(portname_int), RTLIL::SigSpec(wire)); + + if (!portname_pad.empty()) { + RTLIL::Wire *new_wire = NULL; + new_wire = module->addWire(NEW_ID, wire); + module->swap_names(new_wire, wire); + wire->attributes.clear(); + cell->setPort(RTLIL::escape_id(portname_pad), RTLIL::SigSpec(new_wire)); + } if (!widthparam.empty()) cell->parameters[RTLIL::escape_id(widthparam)] = RTLIL::Const(wire->width); if (!nameparam.empty()) cell->parameters[RTLIL::escape_id(nameparam)] = RTLIL::Const(RTLIL::id2cstr(wire->name)); - cell->attributes["\\keep"] = RTLIL::Const(1); + cell->attributes[ID::keep] = RTLIL::Const(1); + } + + if (!rewrite_bits.count(wire)) { + wire->port_id = 0; + wire->port_input = false; + wire->port_output = false; + } + } + + for (auto &it : rewrite_bits) { + RTLIL::Wire *wire = it.first; + RTLIL::Wire *new_wire = module->addWire(NEW_ID, wire); + module->swap_names(new_wire, wire); + wire->attributes.clear(); + for (int i = 0; i < wire->width; i++) + { + SigBit wire_bit(wire, i); + if (!it.second.count(i)) { + if (wire->port_output) + module->connect(SigSpec(new_wire, i), SigSpec(wire, i)); + else + module->connect(SigSpec(wire, i), SigSpec(new_wire, i)); + } else { + auto &new_conn = it.second.at(i); + new_conn.first->setPort(new_conn.second, RTLIL::SigSpec(new_wire, i)); + } } wire->port_id = 0; diff --git a/passes/techmap/libparse.cc b/passes/techmap/libparse.cc index d5254c029..349ccc115 100644 --- a/passes/techmap/libparse.cc +++ b/passes/techmap/libparse.cc @@ -24,6 +24,7 @@ #include <istream> #include <fstream> #include <iostream> +#include <sstream> #ifndef FILTERLIB #include "kernel/log.h" @@ -86,12 +87,14 @@ int LibertyParser::lexer(std::string &str) { int c; + // eat whitespace do { c = f.get(); } while (c == ' ' || c == '\t' || c == '\r'); + // search for identifiers, numbers, plus or minus. if (('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || c == '_' || c == '-' || c == '+' || c == '.') { - str = c; + str = static_cast<char>(c); while (1) { c = f.get(); if (('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || c == '_' || c == '-' || c == '+' || c == '.') @@ -100,10 +103,19 @@ int LibertyParser::lexer(std::string &str) break; } f.unget(); - // fprintf(stderr, "LEX: identifier >>%s<<\n", str.c_str()); - return 'v'; + if (str == "+" || str == "-") { + /* Single operator is not an identifier */ + // fprintf(stderr, "LEX: char >>%s<<\n", str.c_str()); + return str[0]; + } + else { + // fprintf(stderr, "LEX: identifier >>%s<<\n", str.c_str()); + return 'v'; + } } + // if it wasn't an identifer, number of array range, + // maybe it's a string? if (c == '"') { str = ""; while (1) { @@ -118,9 +130,10 @@ int LibertyParser::lexer(std::string &str) return 'v'; } + // if it wasn't a string, perhaps it's a comment or a forward slash? if (c == '/') { c = f.get(); - if (c == '*') { + if (c == '*') { // start of '/*' block comment int last_c = 0; while (c > 0 && (last_c != '*' || c != '/')) { last_c = c; @@ -129,7 +142,7 @@ int LibertyParser::lexer(std::string &str) line++; } return lexer(str); - } else if (c == '/') { + } else if (c == '/') { // start of '//' line comment while (c > 0 && c != '\n') c = f.get(); line++; @@ -137,24 +150,31 @@ int LibertyParser::lexer(std::string &str) } f.unget(); // fprintf(stderr, "LEX: char >>/<<\n"); - return '/'; + return '/'; // a single '/' charater. } + // check for a backslash if (c == '\\') { - c = f.get(); + c = f.get(); if (c == '\r') c = f.get(); - if (c == '\n') + if (c == '\n') { + line++; return lexer(str); + } f.unget(); return '\\'; } + // check for a new line if (c == '\n') { line++; - return ';'; + return 'n'; } + // anything else, such as ';' will get passed + // through as literal items. + // if (c >= 32 && c < 255) // fprintf(stderr, "LEX: char >>%c<<\n", c); // else @@ -168,14 +188,39 @@ LibertyAst *LibertyParser::parse() int tok = lexer(str); - while (tok == ';') + // there are liberty files in the wild that + // have superfluous ';' at the end of + // a { ... }. We simply ignore a ';' here. + // and get to the next statement. + + while ((tok == 'n') || (tok == ';')) tok = lexer(str); if (tok == '}' || tok < 0) return NULL; - if (tok != 'v') - error(); + if (tok != 'v') { + std::string eReport; + switch(tok) + { + case 'n': + error("Unexpected newline."); + break; + case '[': + case ']': + case '}': + case '{': + case '\"': + case ':': + eReport = "Unexpected '"; + eReport += static_cast<char>(tok); + eReport += "'."; + error(eReport); + break; + default: + error(); + } + } LibertyAst *ast = new LibertyAst; ast->id = str; @@ -184,13 +229,33 @@ LibertyAst *LibertyParser::parse() { tok = lexer(str); - if (tok == ';') + // allow both ';' and new lines to + // terminate a statement. + if ((tok == ';') || (tok == 'n')) break; if (tok == ':' && ast->value.empty()) { tok = lexer(ast->value); if (tok != 'v') error(); + tok = lexer(str); + while (tok == '+' || tok == '-' || tok == '*' || tok == '/') { + ast->value += tok; + tok = lexer(str); + if (tok != 'v') + error(); + ast->value += str; + tok = lexer(str); + } + + // In a liberty file, all key : value pairs should end in ';' + // However, there are some liberty files in the wild that + // just have a newline. We'll be kind and accept a newline + // instead of the ';' too.. + if ((tok == ';') || (tok == 'n')) + break; + else + error(); continue; } @@ -202,8 +267,70 @@ LibertyAst *LibertyParser::parse() continue; if (tok == ')') break; - if (tok != 'v') - error(); + + // FIXME: the AST needs to be extended to store + // these vector ranges. + if (tok == '[') + { + // parse vector range [A] or [A:B] + std::string arg; + tok = lexer(arg); + if (tok != 'v') + { + // expected a vector array index + error("Expected a number."); + } + else + { + // fixme: check for number A + } + tok = lexer(arg); + // optionally check for : in case of [A:B] + // if it isn't we just expect ']' + // as we have [A] + if (tok == ':') + { + tok = lexer(arg); + if (tok != 'v') + { + // expected a vector array index + error("Expected a number."); + } + else + { + // fixme: check for number B + tok = lexer(arg); + } + } + // expect a closing bracket of array range + if (tok != ']') + { + error("Expected ']' on array range."); + } + continue; + } + if (tok != 'v') { + std::string eReport; + switch(tok) + { + case 'n': + error("Unexpected newline."); + break; + case '[': + case ']': + case '}': + case '{': + case '\"': + case ':': + eReport = "Unexpected '"; + eReport += static_cast<char>(tok); + eReport += "'."; + error(eReport); + break; + default: + error(); + } + } ast->args.push_back(arg); } continue; @@ -229,14 +356,31 @@ LibertyAst *LibertyParser::parse() void LibertyParser::error() { - log_error("Syntax error in line %d.\n", line); + log_error("Syntax error in liberty file on line %d.\n", line); +} + +void LibertyParser::error(const std::string &str) +{ + std::stringstream ss; + ss << "Syntax error in liberty file on line " << line << ".\n"; + ss << " " << str << "\n"; + log_error("%s", ss.str().c_str()); } #else void LibertyParser::error() { - fprintf(stderr, "Syntax error in line %d.\n", line); + fprintf(stderr, "Syntax error in liberty file on line %d.\n", line); + exit(1); +} + +void LibertyParser::error(const std::string &str) +{ + std::stringstream ss; + ss << "Syntax error in liberty file on line " << line << ".\n"; + ss << " " << str << "\n"; + printf("%s", ss.str().c_str()); exit(1); } @@ -244,21 +388,21 @@ void LibertyParser::error() #define CHECK_NV(result, check) \ do { \ - auto _R = (result); \ - if (!(_R check)) { \ - fprintf(stderr, "Error from '%s' (%ld %s) in %s:%d.\n", \ - #result, (long int)_R, #check, __FILE__, __LINE__); \ - abort(); \ - } \ + auto _R = (result); \ + if (!(_R check)) { \ + fprintf(stderr, "Error from '%s' (%ld %s) in %s:%d.\n", \ + #result, (long int)_R, #check, __FILE__, __LINE__); \ + abort(); \ + } \ } while(0) #define CHECK_COND(result) \ do { \ - if (!(result)) { \ - fprintf(stderr, "Error from '%s' in %s:%d.\n", \ - #result, __FILE__, __LINE__); \ - abort(); \ - } \ + if (!(result)) { \ + fprintf(stderr, "Error from '%s' in %s:%d.\n", \ + #result, __FILE__, __LINE__); \ + abort(); \ + } \ } while(0) /**** END: http://svn.clifford.at/tools/trunk/examples/check.h ****/ diff --git a/passes/techmap/libparse.h b/passes/techmap/libparse.h index cf6325570..c9ebd06c5 100644 --- a/passes/techmap/libparse.h +++ b/passes/techmap/libparse.h @@ -46,9 +46,17 @@ namespace Yosys LibertyAst *ast; LibertyParser(std::istream &f) : f(f), line(1), ast(parse()) {} ~LibertyParser() { if (ast) delete ast; } + + /* lexer return values: + 'v': identifier, string, array range [...] -> str holds the token string + 'n': newline + anything else is a single character. + */ int lexer(std::string &str); - LibertyAst *parse(); + + LibertyAst *parse(); void error(); + void error(const std::string &str); }; } diff --git a/passes/techmap/lut2mux.cc b/passes/techmap/lut2mux.cc index 2bb0bd8b4..c6618fc9d 100644 --- a/passes/techmap/lut2mux.cc +++ b/passes/techmap/lut2mux.cc @@ -25,14 +25,14 @@ PRIVATE_NAMESPACE_BEGIN int lut2mux(Cell *cell) { - SigSpec sig_a = cell->getPort("\\A"); - SigSpec sig_y = cell->getPort("\\Y"); - Const lut = cell->getParam("\\LUT"); + SigSpec sig_a = cell->getPort(ID::A); + SigSpec sig_y = cell->getPort(ID::Y); + Const lut = cell->getParam(ID(LUT)); int count = 1; if (GetSize(sig_a) == 1) { - cell->module->addMuxGate(NEW_ID, lut[0], lut[1], sig_a, sig_y); + cell->module->addMuxGate(NEW_ID, lut.extract(0)[0], lut.extract(1)[0], sig_a, sig_y); } else { @@ -56,7 +56,7 @@ int lut2mux(Cell *cell) struct Lut2muxPass : public Pass { Lut2muxPass() : Pass("lut2mux", "convert $lut to $_MUX_") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -65,7 +65,7 @@ struct Lut2muxPass : public Pass { log("This pass converts $lut cells to $_MUX_ gates.\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing LUT2MUX pass (convert $lut to $_MUX_).\n"); @@ -81,7 +81,7 @@ struct Lut2muxPass : public Pass { for (auto module : design->selected_modules()) for (auto cell : module->selected_cells()) { - if (cell->type == "$lut") { + if (cell->type == ID($lut)) { IdString cell_name = cell->name; int count = lut2mux(cell); log("Converted %s.%s to %d MUX cells.\n", log_id(module), log_id(cell_name), count); diff --git a/passes/techmap/maccmap.cc b/passes/techmap/maccmap.cc index 32569d076..09f61927c 100644 --- a/passes/techmap/maccmap.cc +++ b/passes/techmap/maccmap.cc @@ -36,7 +36,7 @@ struct MaccmapWorker void add(RTLIL::SigBit bit, int position) { - if (position >= width || bit == RTLIL::S0) + if (position >= width || bit == State::S0) return; if (bits.at(position).count(bit)) { @@ -53,7 +53,7 @@ struct MaccmapWorker if (do_subtract) { a = module->Not(NEW_ID, a); - add(RTLIL::S1, 0); + add(State::S1, 0); } for (int i = 0; i < width; i++) @@ -80,7 +80,7 @@ struct MaccmapWorker else { add(module->And(NEW_ID, a, RTLIL::SigSpec(b[i], width)), false, do_subtract); - a = {a.extract(0, width-1), RTLIL::S0}; + a = {a.extract(0, width-1), State::S0}; } } @@ -88,10 +88,10 @@ struct MaccmapWorker { int start_index = 0, stop_index = GetSize(in1); - while (start_index < stop_index && in1[start_index] == RTLIL::S0 && in2[start_index] == RTLIL::S0 && in3[start_index] == RTLIL::S0) + while (start_index < stop_index && in1[start_index] == State::S0 && in2[start_index] == RTLIL::S0 && in3[start_index] == RTLIL::S0) start_index++; - while (start_index < stop_index && in1[stop_index-1] == RTLIL::S0 && in2[stop_index-1] == RTLIL::S0 && in3[stop_index-1] == RTLIL::S0) + while (start_index < stop_index && in1[stop_index-1] == State::S0 && in2[stop_index-1] == RTLIL::S0 && in3[stop_index-1] == RTLIL::S0) stop_index--; if (start_index == stop_index) @@ -111,13 +111,13 @@ struct MaccmapWorker RTLIL::Wire *w1 = module->addWire(NEW_ID, width); RTLIL::Wire *w2 = module->addWire(NEW_ID, width); - RTLIL::Cell *cell = module->addCell(NEW_ID, "$fa"); - cell->setParam("\\WIDTH", width); - cell->setPort("\\A", in1); - cell->setPort("\\B", in2); - cell->setPort("\\C", in3); - cell->setPort("\\Y", w1); - cell->setPort("\\X", w2); + RTLIL::Cell *cell = module->addCell(NEW_ID, ID($fa)); + cell->setParam(ID(WIDTH), width); + cell->setPort(ID::A, in1); + cell->setPort(ID::B, in2); + cell->setPort(ID(C), in3); + cell->setPort(ID::Y, w1); + cell->setPort(ID(X), w2); out1 = {out_zeros_msb, w1, out_zeros_lsb}; out2 = {out_zeros_msb, w2, out_zeros_lsb}; @@ -222,7 +222,7 @@ struct MaccmapWorker RTLIL::SigSpec in3 = summands[i+2]; RTLIL::SigSpec out1, out2; fulladd(in1, in2, in3, out1, out2); - RTLIL::SigBit extra_bit = RTLIL::S0; + RTLIL::SigBit extra_bit = State::S0; if (!tree_sum_bits.empty()) { extra_bit = tree_sum_bits.back(); tree_sum_bits.pop_back(); @@ -237,23 +237,23 @@ struct MaccmapWorker } - RTLIL::Cell *c = module->addCell(NEW_ID, "$alu"); - c->setPort("\\A", summands.front()); - c->setPort("\\B", summands.back()); - c->setPort("\\CI", RTLIL::S0); - c->setPort("\\BI", RTLIL::S0); - c->setPort("\\Y", module->addWire(NEW_ID, width)); - c->setPort("\\X", module->addWire(NEW_ID, width)); - c->setPort("\\CO", module->addWire(NEW_ID, width)); + RTLIL::Cell *c = module->addCell(NEW_ID, ID($alu)); + c->setPort(ID::A, summands.front()); + c->setPort(ID::B, summands.back()); + c->setPort(ID(CI), State::S0); + c->setPort(ID(BI), State::S0); + c->setPort(ID::Y, module->addWire(NEW_ID, width)); + c->setPort(ID(X), module->addWire(NEW_ID, width)); + c->setPort(ID(CO), module->addWire(NEW_ID, width)); c->fixup_parameters(); if (!tree_sum_bits.empty()) { - c->setPort("\\CI", tree_sum_bits.back()); + c->setPort(ID(CI), tree_sum_bits.back()); tree_sum_bits.pop_back(); } log_assert(tree_sum_bits.empty()); - return c->getPort("\\Y"); + return c->getPort(ID::Y); } }; @@ -264,17 +264,17 @@ extern void maccmap(RTLIL::Module *module, RTLIL::Cell *cell, bool unmap = false void maccmap(RTLIL::Module *module, RTLIL::Cell *cell, bool unmap) { - int width = GetSize(cell->getPort("\\Y")); + int width = GetSize(cell->getPort(ID::Y)); Macc macc; macc.from_cell(cell); RTLIL::SigSpec all_input_bits; - all_input_bits.append(cell->getPort("\\A")); - all_input_bits.append(cell->getPort("\\B")); + all_input_bits.append(cell->getPort(ID::A)); + all_input_bits.append(cell->getPort(ID::B)); if (all_input_bits.to_sigbit_set().count(RTLIL::Sx)) { - module->connect(cell->getPort("\\Y"), RTLIL::SigSpec(RTLIL::Sx, width)); + module->connect(cell->getPort(ID::Y), RTLIL::SigSpec(RTLIL::Sx, width)); return; } @@ -339,9 +339,9 @@ void maccmap(RTLIL::Module *module, RTLIL::Cell *cell, bool unmap) } if (summands.front().second) - module->addNeg(NEW_ID, summands.front().first, cell->getPort("\\Y")); + module->addNeg(NEW_ID, summands.front().first, cell->getPort(ID::Y)); else - module->connect(cell->getPort("\\Y"), summands.front().first); + module->connect(cell->getPort(ID::Y), summands.front().first); } else { @@ -356,7 +356,7 @@ void maccmap(RTLIL::Module *module, RTLIL::Cell *cell, bool unmap) for (auto &bit : macc.bit_ports) worker.add(bit, 0); - module->connect(cell->getPort("\\Y"), worker.synth()); + module->connect(cell->getPort(ID::Y), worker.synth()); } } @@ -365,7 +365,7 @@ PRIVATE_NAMESPACE_BEGIN struct MaccmapPass : public Pass { MaccmapPass() : Pass("maccmap", "mapping macc cells") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -375,7 +375,7 @@ struct MaccmapPass : public Pass { log("is used then the $macc cell is mapped to $add, $sub, etc. cells instead.\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { bool unmap_mode = false; @@ -393,7 +393,7 @@ struct MaccmapPass : public Pass { for (auto mod : design->selected_modules()) for (auto cell : mod->selected_cells()) - if (cell->type == "$macc") { + if (cell->type == ID($macc)) { log("Mapping %s.%s (%s).\n", log_id(mod), log_id(cell), log_id(cell->type)); maccmap(mod, cell, unmap_mode); mod->remove(cell); diff --git a/passes/techmap/muxcover.cc b/passes/techmap/muxcover.cc index 1dc649587..5541b6122 100644 --- a/passes/techmap/muxcover.cc +++ b/passes/techmap/muxcover.cc @@ -23,6 +23,7 @@ USING_YOSYS_NAMESPACE PRIVATE_NAMESPACE_BEGIN +#define COST_DMUX 90 #define COST_MUX2 100 #define COST_MUX4 220 #define COST_MUX8 460 @@ -57,6 +58,13 @@ struct MuxcoverWorker bool use_mux8; bool use_mux16; bool nodecode; + bool nopartial; + + int cost_dmux; + int cost_mux2; + int cost_mux4; + int cost_mux8; + int cost_mux16; MuxcoverWorker(Module *module) : module(module), sigmap(module) { @@ -64,9 +72,32 @@ struct MuxcoverWorker use_mux8 = false; use_mux16 = false; nodecode = false; + nopartial = false; + cost_dmux = COST_DMUX; + cost_mux2 = COST_MUX2; + cost_mux4 = COST_MUX4; + cost_mux8 = COST_MUX8; + cost_mux16 = COST_MUX16; decode_mux_counter = 0; } + bool xcmp(std::initializer_list<SigBit> list) + { + auto cursor = list.begin(), end = list.end(); + log_assert(cursor != end); + SigBit tmp = *(cursor++); + while (cursor != end) { + SigBit bit = *(cursor++); + if (bit == State::Sx) + continue; + if (tmp == State::Sx) + tmp = bit; + if (bit != tmp) + return false; + } + return true; + } + void treeify() { pool<SigBit> roots; @@ -85,13 +116,13 @@ struct MuxcoverWorker if (!cell->input(conn.first)) continue; for (auto bit : sigmap(conn.second)) { - if (used_once.count(bit) || cell->type != "$_MUX_" || conn.first == "\\S") + if (used_once.count(bit) || cell->type != ID($_MUX_) || conn.first == ID(S)) roots.insert(bit); used_once.insert(bit); } } - if (cell->type == "$_MUX_") - sig_to_mux[sigmap(cell->getPort("\\Y"))] = cell; + if (cell->type == ID($_MUX_)) + sig_to_mux[sigmap(cell->getPort(ID::Y))] = cell; } log(" Treeifying %d MUXes:\n", GetSize(sig_to_mux)); @@ -110,8 +141,8 @@ struct MuxcoverWorker if (sig_to_mux.count(bit) && (bit == rootsig || !roots.count(bit))) { Cell *c = sig_to_mux.at(bit); tree.muxes[bit] = c; - wavefront.insert(sigmap(c->getPort("\\A"))); - wavefront.insert(sigmap(c->getPort("\\B"))); + wavefront.insert(sigmap(c->getPort(ID::A))); + wavefront.insert(sigmap(c->getPort(ID::B))); } } @@ -124,13 +155,22 @@ struct MuxcoverWorker log(" Finished treeification: Found %d trees.\n", GetSize(tree_list)); } - bool follow_muxtree(SigBit &ret_bit, tree_t &tree, SigBit bit, const char *path) + bool follow_muxtree(SigBit &ret_bit, tree_t &tree, SigBit bit, const char *path, bool first_layer = true) { if (*path) { - if (tree.muxes.count(bit) == 0) - return false; + if (tree.muxes.count(bit) == 0) { + if (first_layer || nopartial) + return false; + while (path[0] && path[1]) + path++; + if (path[0] == 'S') + ret_bit = State::Sx; + else + ret_bit = bit; + return true; + } char port_name[3] = {'\\', *path, 0}; - return follow_muxtree(ret_bit, tree, sigmap(tree.muxes.at(bit)->getPort(port_name)), path+1); + return follow_muxtree(ret_bit, tree, sigmap(tree.muxes.at(bit)->getPort(port_name)), path+1, false); } else { ret_bit = bit; return true; @@ -139,7 +179,7 @@ struct MuxcoverWorker int prepare_decode_mux(SigBit &A, SigBit B, SigBit sel, SigBit bit) { - if (A == B) + if (A == B || sel == State::Sx) return 0; tuple<SigBit, SigBit, SigBit> key(A, B, sel); @@ -157,7 +197,10 @@ struct MuxcoverWorker if (std::get<2>(entry)) return 0; - return COST_MUX2 / GetSize(std::get<1>(entry)); + if (A == State::Sx || B == State::Sx) + return 0; + + return cost_dmux / GetSize(std::get<1>(entry)); } void implement_decode_mux(SigBit ctrl_bit) @@ -174,9 +217,32 @@ struct MuxcoverWorker implement_decode_mux(std::get<0>(key)); implement_decode_mux(std::get<1>(key)); - module->addMuxGate(NEW_ID, std::get<0>(key), std::get<1>(key), std::get<2>(key), ctrl_bit); + if (std::get<0>(key) == State::Sx) { + module->addBufGate(NEW_ID, std::get<1>(key), ctrl_bit); + } else if (std::get<1>(key) == State::Sx) { + module->addBufGate(NEW_ID, std::get<0>(key), ctrl_bit); + } else { + module->addMuxGate(NEW_ID, std::get<0>(key), std::get<1>(key), std::get<2>(key), ctrl_bit); + decode_mux_counter++; + } std::get<2>(entry) = true; - decode_mux_counter++; + } + + void find_best_covers(tree_t &tree, const vector<SigBit> &bits) + { + for (auto bit : bits) + find_best_cover(tree, bit); + } + + int sum_best_covers(tree_t &tree, const vector<SigBit> &bits) + { + int sum = 0; + for (auto bit : pool<SigBit>(bits.begin(), bits.end())) { + int cost = tree.newmuxes.at(bit).cost; + log_debug(" Best cost for %s: %d\n", log_signal(bit), cost); + sum += cost; + } + return sum; } int find_best_cover(tree_t &tree, SigBit bit) @@ -209,9 +275,13 @@ struct MuxcoverWorker mux.inputs.push_back(B); mux.selects.push_back(S1); - mux.cost += COST_MUX2; - mux.cost += find_best_cover(tree, A); - mux.cost += find_best_cover(tree, B); + find_best_covers(tree, mux.inputs); + log_debug(" Decode cost for mux2 at %s: %d\n", log_signal(bit), mux.cost); + + mux.cost += cost_mux2; + mux.cost += sum_best_covers(tree, mux.inputs); + + log_debug(" Cost of mux2 at %s: %d\n", log_signal(bit), mux.cost); best_mux = mux; } @@ -229,7 +299,7 @@ struct MuxcoverWorker ok = ok && follow_muxtree(S2, tree, bit, "BS"); if (nodecode) - ok = ok && S1 == S2; + ok = ok && xcmp({S1, S2}); ok = ok && follow_muxtree(T1, tree, bit, "S"); @@ -247,13 +317,15 @@ struct MuxcoverWorker mux.selects.push_back(S1); mux.selects.push_back(T1); - mux.cost += COST_MUX4; - mux.cost += find_best_cover(tree, A); - mux.cost += find_best_cover(tree, B); - mux.cost += find_best_cover(tree, C); - mux.cost += find_best_cover(tree, D); + find_best_covers(tree, mux.inputs); + log_debug(" Decode cost for mux4 at %s: %d\n", log_signal(bit), mux.cost); - if (best_mux.cost > mux.cost) + mux.cost += cost_mux4; + mux.cost += sum_best_covers(tree, mux.inputs); + + log_debug(" Cost of mux4 at %s: %d\n", log_signal(bit), mux.cost); + + if (best_mux.cost >= mux.cost) best_mux = mux; } } @@ -277,13 +349,13 @@ struct MuxcoverWorker ok = ok && follow_muxtree(S4, tree, bit, "BBS"); if (nodecode) - ok = ok && S1 == S2 && S2 == S3 && S3 == S4; + ok = ok && xcmp({S1, S2, S3, S4}); ok = ok && follow_muxtree(T1, tree, bit, "AS"); ok = ok && follow_muxtree(T2, tree, bit, "BS"); if (nodecode) - ok = ok && T1 == T2; + ok = ok && xcmp({T1, T2}); ok = ok && follow_muxtree(U1, tree, bit, "S"); @@ -310,17 +382,15 @@ struct MuxcoverWorker mux.selects.push_back(T1); mux.selects.push_back(U1); - mux.cost += COST_MUX8; - mux.cost += find_best_cover(tree, A); - mux.cost += find_best_cover(tree, B); - mux.cost += find_best_cover(tree, C); - mux.cost += find_best_cover(tree, D); - mux.cost += find_best_cover(tree, E); - mux.cost += find_best_cover(tree, F); - mux.cost += find_best_cover(tree, G); - mux.cost += find_best_cover(tree, H); - - if (best_mux.cost > mux.cost) + find_best_covers(tree, mux.inputs); + log_debug(" Decode cost for mux8 at %s: %d\n", log_signal(bit), mux.cost); + + mux.cost += cost_mux8; + mux.cost += sum_best_covers(tree, mux.inputs); + + log_debug(" Cost of mux8 at %s: %d\n", log_signal(bit), mux.cost); + + if (best_mux.cost >= mux.cost) best_mux = mux; } } @@ -356,7 +426,7 @@ struct MuxcoverWorker ok = ok && follow_muxtree(S8, tree, bit, "BBBS"); if (nodecode) - ok = ok && S1 == S2 && S2 == S3 && S3 == S4 && S4 == S5 && S5 == S6 && S6 == S7 && S7 == S8; + ok = ok && xcmp({S1, S2, S3, S4, S5, S6, S7, S8}); ok = ok && follow_muxtree(T1, tree, bit, "AAS"); ok = ok && follow_muxtree(T2, tree, bit, "ABS"); @@ -364,13 +434,13 @@ struct MuxcoverWorker ok = ok && follow_muxtree(T4, tree, bit, "BBS"); if (nodecode) - ok = ok && T1 == T2 && T2 == T3 && T3 == T4; + ok = ok && xcmp({T1, T2, T3, T4}); ok = ok && follow_muxtree(U1, tree, bit, "AS"); ok = ok && follow_muxtree(U2, tree, bit, "BS"); if (nodecode) - ok = ok && U1 == U2; + ok = ok && xcmp({U1, U2}); ok = ok && follow_muxtree(V1, tree, bit, "S"); @@ -414,25 +484,15 @@ struct MuxcoverWorker mux.selects.push_back(U1); mux.selects.push_back(V1); - mux.cost += COST_MUX16; - mux.cost += find_best_cover(tree, A); - mux.cost += find_best_cover(tree, B); - mux.cost += find_best_cover(tree, C); - mux.cost += find_best_cover(tree, D); - mux.cost += find_best_cover(tree, E); - mux.cost += find_best_cover(tree, F); - mux.cost += find_best_cover(tree, G); - mux.cost += find_best_cover(tree, H); - mux.cost += find_best_cover(tree, I); - mux.cost += find_best_cover(tree, J); - mux.cost += find_best_cover(tree, K); - mux.cost += find_best_cover(tree, L); - mux.cost += find_best_cover(tree, M); - mux.cost += find_best_cover(tree, N); - mux.cost += find_best_cover(tree, O); - mux.cost += find_best_cover(tree, P); - - if (best_mux.cost > mux.cost) + find_best_covers(tree, mux.inputs); + log_debug(" Decode cost for mux16 at %s: %d\n", log_signal(bit), mux.cost); + + mux.cost += cost_mux16; + mux.cost += sum_best_covers(tree, mux.inputs); + + log_debug(" Cost of mux16 at %s: %d\n", log_signal(bit), mux.cost); + + if (best_mux.cost >= mux.cost) best_mux = mux; } } @@ -456,69 +516,69 @@ struct MuxcoverWorker if (GetSize(mux.inputs) == 2) { count_muxes_by_type[0]++; - Cell *cell = module->addCell(NEW_ID, "$_MUX_"); - cell->setPort("\\A", mux.inputs[0]); - cell->setPort("\\B", mux.inputs[1]); - cell->setPort("\\S", mux.selects[0]); - cell->setPort("\\Y", bit); + Cell *cell = module->addCell(NEW_ID, ID($_MUX_)); + cell->setPort(ID::A, mux.inputs[0]); + cell->setPort(ID::B, mux.inputs[1]); + cell->setPort(ID(S), mux.selects[0]); + cell->setPort(ID::Y, bit); return; } if (GetSize(mux.inputs) == 4) { count_muxes_by_type[1]++; - Cell *cell = module->addCell(NEW_ID, "$_MUX4_"); - cell->setPort("\\A", mux.inputs[0]); - cell->setPort("\\B", mux.inputs[1]); - cell->setPort("\\C", mux.inputs[2]); - cell->setPort("\\D", mux.inputs[3]); - cell->setPort("\\S", mux.selects[0]); - cell->setPort("\\T", mux.selects[1]); - cell->setPort("\\Y", bit); + Cell *cell = module->addCell(NEW_ID, ID($_MUX4_)); + cell->setPort(ID::A, mux.inputs[0]); + cell->setPort(ID::B, mux.inputs[1]); + cell->setPort(ID(C), mux.inputs[2]); + cell->setPort(ID(D), mux.inputs[3]); + cell->setPort(ID(S), mux.selects[0]); + cell->setPort(ID(T), mux.selects[1]); + cell->setPort(ID::Y, bit); return; } if (GetSize(mux.inputs) == 8) { count_muxes_by_type[2]++; - Cell *cell = module->addCell(NEW_ID, "$_MUX8_"); - cell->setPort("\\A", mux.inputs[0]); - cell->setPort("\\B", mux.inputs[1]); - cell->setPort("\\C", mux.inputs[2]); - cell->setPort("\\D", mux.inputs[3]); - cell->setPort("\\E", mux.inputs[4]); - cell->setPort("\\F", mux.inputs[5]); - cell->setPort("\\G", mux.inputs[6]); - cell->setPort("\\H", mux.inputs[7]); - cell->setPort("\\S", mux.selects[0]); - cell->setPort("\\T", mux.selects[1]); - cell->setPort("\\U", mux.selects[2]); - cell->setPort("\\Y", bit); + Cell *cell = module->addCell(NEW_ID, ID($_MUX8_)); + cell->setPort(ID::A, mux.inputs[0]); + cell->setPort(ID::B, mux.inputs[1]); + cell->setPort(ID(C), mux.inputs[2]); + cell->setPort(ID(D), mux.inputs[3]); + cell->setPort(ID(E), mux.inputs[4]); + cell->setPort(ID(F), mux.inputs[5]); + cell->setPort(ID(G), mux.inputs[6]); + cell->setPort(ID(H), mux.inputs[7]); + cell->setPort(ID(S), mux.selects[0]); + cell->setPort(ID(T), mux.selects[1]); + cell->setPort(ID(U), mux.selects[2]); + cell->setPort(ID::Y, bit); return; } if (GetSize(mux.inputs) == 16) { count_muxes_by_type[3]++; - Cell *cell = module->addCell(NEW_ID, "$_MUX16_"); - cell->setPort("\\A", mux.inputs[0]); - cell->setPort("\\B", mux.inputs[1]); - cell->setPort("\\C", mux.inputs[2]); - cell->setPort("\\D", mux.inputs[3]); - cell->setPort("\\E", mux.inputs[4]); - cell->setPort("\\F", mux.inputs[5]); - cell->setPort("\\G", mux.inputs[6]); - cell->setPort("\\H", mux.inputs[7]); - cell->setPort("\\I", mux.inputs[8]); - cell->setPort("\\J", mux.inputs[9]); - cell->setPort("\\K", mux.inputs[10]); - cell->setPort("\\L", mux.inputs[11]); - cell->setPort("\\M", mux.inputs[12]); - cell->setPort("\\N", mux.inputs[13]); - cell->setPort("\\O", mux.inputs[14]); - cell->setPort("\\P", mux.inputs[15]); - cell->setPort("\\S", mux.selects[0]); - cell->setPort("\\T", mux.selects[1]); - cell->setPort("\\U", mux.selects[2]); - cell->setPort("\\V", mux.selects[3]); - cell->setPort("\\Y", bit); + Cell *cell = module->addCell(NEW_ID, ID($_MUX16_)); + cell->setPort(ID::A, mux.inputs[0]); + cell->setPort(ID::B, mux.inputs[1]); + cell->setPort(ID(C), mux.inputs[2]); + cell->setPort(ID(D), mux.inputs[3]); + cell->setPort(ID(E), mux.inputs[4]); + cell->setPort(ID(F), mux.inputs[5]); + cell->setPort(ID(G), mux.inputs[6]); + cell->setPort(ID(H), mux.inputs[7]); + cell->setPort(ID(I), mux.inputs[8]); + cell->setPort(ID(J), mux.inputs[9]); + cell->setPort(ID(K), mux.inputs[10]); + cell->setPort(ID(L), mux.inputs[11]); + cell->setPort(ID(M), mux.inputs[12]); + cell->setPort(ID(N), mux.inputs[13]); + cell->setPort(ID(O), mux.inputs[14]); + cell->setPort(ID(P), mux.inputs[15]); + cell->setPort(ID(S), mux.selects[0]); + cell->setPort(ID(T), mux.selects[1]); + cell->setPort(ID(U), mux.selects[2]); + cell->setPort(ID(V), mux.selects[3]); + cell->setPort(ID::Y, bit); return; } @@ -528,6 +588,7 @@ struct MuxcoverWorker void treecover(tree_t &tree) { int count_muxes_by_type[4] = {0, 0, 0, 0}; + log_debug(" Searching for best cover for tree at %s.\n", log_signal(tree.root)); find_best_cover(tree, tree.root); implement_best_cover(tree, tree.root, count_muxes_by_type); log(" Replaced tree at %s: %d MUX2, %d MUX4, %d MUX8, %d MUX16\n", log_signal(tree.root), @@ -544,12 +605,13 @@ struct MuxcoverWorker log(" Covering trees:\n"); - // pre-fill cache of decoder muxes - if (!nodecode) + if (!nodecode) { + log_debug(" Populating cache of decoder muxes.\n"); for (auto &tree : tree_list) { find_best_cover(tree, tree.root); tree.newmuxes.clear(); } + } for (auto &tree : tree_list) treecover(tree); @@ -561,7 +623,7 @@ struct MuxcoverWorker struct MuxcoverPass : public Pass { MuxcoverPass() : Pass("muxcover", "cover trees of MUX cells with wider MUXes") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -569,17 +631,32 @@ struct MuxcoverPass : public Pass { log("\n"); log("Cover trees of $_MUX_ cells with $_MUX{4,8,16}_ cells\n"); log("\n"); - log(" -mux4, -mux8, -mux16\n"); - log(" Use the specified types of MUXes. If none of those options are used,\n"); - log(" the effect is the same as if all of them where used.\n"); + log(" -mux4[=cost], -mux8[=cost], -mux16[=cost]\n"); + log(" Cover $_MUX_ trees using the specified types of MUXes (with optional\n"); + log(" integer costs). If none of these options are given, the effect is the\n"); + log(" same as if all of them are.\n"); + log(" Default costs: $_MUX4_ = %d, $_MUX8_ = %d, \n", COST_MUX4, COST_MUX8); + log(" $_MUX16_ = %d\n", COST_MUX16); + log("\n"); + log(" -mux2=cost\n"); + log(" Use the specified cost for $_MUX_ cells when making covering decisions.\n"); + log(" Default cost: $_MUX_ = %d\n", COST_MUX2); + log("\n"); + log(" -dmux=cost\n"); + log(" Use the specified cost for $_MUX_ cells used in decoders.\n"); + log(" Default cost: %d\n", COST_DMUX); log("\n"); log(" -nodecode\n"); log(" Do not insert decoder logic. This reduces the number of possible\n"); log(" substitutions, but guarantees that the resulting circuit is not\n"); log(" less efficient than the original circuit.\n"); log("\n"); + log(" -nopartial\n"); + log(" Do not consider mappings that use $_MUX<N>_ to select from less\n"); + log(" than <N> different signals.\n"); + log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing MUXCOVER pass (mapping to wider MUXes).\n"); @@ -587,26 +664,57 @@ struct MuxcoverPass : public Pass { bool use_mux8 = false; bool use_mux16 = false; bool nodecode = false; + bool nopartial = false; + int cost_dmux = COST_DMUX; + int cost_mux2 = COST_MUX2; + int cost_mux4 = COST_MUX4; + int cost_mux8 = COST_MUX8; + int cost_mux16 = COST_MUX16; size_t argidx; for (argidx = 1; argidx < args.size(); argidx++) { - if (args[argidx] == "-mux4") { + const auto &arg = args[argidx]; + if (arg.size() >= 6 && arg.compare(0,6,"-mux2=") == 0) { + cost_mux2 = atoi(arg.substr(6).c_str()); + continue; + } + if (arg.size() >= 5 && arg.compare(0,5,"-mux4") == 0) { use_mux4 = true; + if (arg.size() > 5) { + if (arg[5] != '=') break; + cost_mux4 = atoi(arg.substr(6).c_str()); + } continue; } - if (args[argidx] == "-mux8") { + if (arg.size() >= 5 && arg.compare(0,5,"-mux8") == 0) { use_mux8 = true; + if (arg.size() > 5) { + if (arg[5] != '=') break; + cost_mux8 = atoi(arg.substr(6).c_str()); + } continue; } - if (args[argidx] == "-mux16") { + if (arg.size() >= 6 && arg.compare(0,6,"-mux16") == 0) { use_mux16 = true; + if (arg.size() > 6) { + if (arg[6] != '=') break; + cost_mux16 = atoi(arg.substr(7).c_str()); + } + continue; + } + if (arg.size() >= 6 && arg.compare(0,6,"-dmux=") == 0) { + cost_dmux = atoi(arg.substr(6).c_str()); continue; } - if (args[argidx] == "-nodecode") { + if (arg == "-nodecode") { nodecode = true; continue; } + if (arg == "-nopartial") { + nopartial = true; + continue; + } break; } extra_args(args, argidx, design); @@ -623,7 +731,13 @@ struct MuxcoverPass : public Pass { worker.use_mux4 = use_mux4; worker.use_mux8 = use_mux8; worker.use_mux16 = use_mux16; + worker.cost_dmux = cost_dmux; + worker.cost_mux2 = cost_mux2; + worker.cost_mux4 = cost_mux4; + worker.cost_mux8 = cost_mux8; + worker.cost_mux16 = cost_mux16; worker.nodecode = nodecode; + worker.nopartial = nopartial; worker.run(); } } diff --git a/passes/techmap/nlutmap.cc b/passes/techmap/nlutmap.cc index f1a41cc3e..798d82248 100644 --- a/passes/techmap/nlutmap.cc +++ b/passes/techmap/nlutmap.cc @@ -82,10 +82,10 @@ struct NlutmapWorker for (auto cell : module->cells()) { - if (cell->type != "$lut" || mapped_cells.count(cell)) + if (cell->type != ID($lut) || mapped_cells.count(cell)) continue; - if (GetSize(cell->getPort("\\A")) == lut_size || lut_size == 2) + if (GetSize(cell->getPort(ID::A)) == lut_size || lut_size == 2) candidate_ratings[cell] = 0; for (auto &conn : cell->connections()) @@ -119,7 +119,7 @@ struct NlutmapWorker if (config.assert_mode) { for (auto cell : module->cells()) - if (cell->type == "$lut" && !mapped_cells.count(cell)) + if (cell->type == ID($lut) && !mapped_cells.count(cell)) log_error("Insufficient number of LUTs to map all logic cells!\n"); } @@ -129,7 +129,7 @@ struct NlutmapWorker struct NlutmapPass : public Pass { NlutmapPass() : Pass("nlutmap", "map to LUTs of different sizes") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -149,7 +149,7 @@ struct NlutmapPass : public Pass { log("to generic logic gates ($_AND_, etc.).\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { NlutmapConfig config; diff --git a/passes/techmap/pmuxtree.cc b/passes/techmap/pmuxtree.cc index c626dbcc5..31ab13cec 100644 --- a/passes/techmap/pmuxtree.cc +++ b/passes/techmap/pmuxtree.cc @@ -67,16 +67,16 @@ static SigSpec recursive_mux_generator(Module *module, const SigSpec &sig_data, struct PmuxtreePass : public Pass { PmuxtreePass() : Pass("pmuxtree", "transform $pmux cells to trees of $mux cells") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); - log(" pmuxtree [options] [selection]\n"); + log(" pmuxtree [selection]\n"); log("\n"); - log("This pass transforms $pmux cells to a trees of $mux cells.\n"); + log("This pass transforms $pmux cells to trees of $mux cells.\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing PMUXTREE pass.\n"); @@ -89,21 +89,21 @@ struct PmuxtreePass : public Pass { for (auto module : design->selected_modules()) for (auto cell : module->selected_cells()) { - if (cell->type != "$pmux") + if (cell->type != ID($pmux)) continue; - SigSpec sig_data = cell->getPort("\\B"); - SigSpec sig_sel = cell->getPort("\\S"); + SigSpec sig_data = cell->getPort(ID::B); + SigSpec sig_sel = cell->getPort(ID(S)); - if (!cell->getPort("\\A").is_fully_undef()) { - sig_data.append(cell->getPort("\\A")); + if (!cell->getPort(ID::A).is_fully_undef()) { + sig_data.append(cell->getPort(ID::A)); SigSpec sig_sel_or = module->ReduceOr(NEW_ID, sig_sel); sig_sel.append(module->Not(NEW_ID, sig_sel_or)); } SigSpec result, result_or; result = recursive_mux_generator(module, sig_data, sig_sel, result_or); - module->connect(cell->getPort("\\Y"), result); + module->connect(cell->getPort(ID::Y), result); module->remove(cell); } } diff --git a/passes/techmap/shregmap.cc b/passes/techmap/shregmap.cc index 6936b499e..be00e5030 100644 --- a/passes/techmap/shregmap.cc +++ b/passes/techmap/shregmap.cc @@ -71,22 +71,22 @@ struct ShregmapTechGreenpak4 : ShregmapTech bool fixup(Cell *cell, dict<int, SigBit> &taps) { - auto D = cell->getPort("\\D"); - auto C = cell->getPort("\\C"); + auto D = cell->getPort(ID(D)); + auto C = cell->getPort(ID(C)); - auto newcell = cell->module->addCell(NEW_ID, "\\GP_SHREG"); - newcell->setPort("\\nRST", State::S1); - newcell->setPort("\\CLK", C); - newcell->setPort("\\IN", D); + auto newcell = cell->module->addCell(NEW_ID, ID(GP_SHREG)); + newcell->setPort(ID(nRST), State::S1); + newcell->setPort(ID(CLK), C); + newcell->setPort(ID(IN), D); int i = 0; for (auto tap : taps) { - newcell->setPort(i ? "\\OUTB" : "\\OUTA", tap.second); - newcell->setParam(i ? "\\OUTB_TAP" : "\\OUTA_TAP", tap.first + 1); + newcell->setPort(i ? ID(OUTB) : ID(OUTA), tap.second); + newcell->setParam(i ? ID(OUTB_TAP) : ID(OUTA_TAP), tap.first + 1); i++; } - cell->setParam("\\OUTA_INVERT", 0); + cell->setParam(ID(OUTA_INVERT), 0); return false; } }; @@ -112,14 +112,14 @@ struct ShregmapWorker { for (auto wire : module->wires()) { - if (wire->port_output || wire->get_bool_attribute("\\keep")) { + if (wire->port_output || wire->get_bool_attribute(ID::keep)) { for (auto bit : sigmap(wire)) sigbit_with_non_chain_users.insert(bit); } - if (wire->attributes.count("\\init")) { + if (wire->attributes.count(ID(init))) { SigSpec initsig = sigmap(wire); - Const initval = wire->attributes.at("\\init"); + Const initval = wire->attributes.at(ID(init)); for (int i = 0; i < GetSize(initsig) && i < GetSize(initval); i++) if (initval[i] == State::S0 && !opts.zinit) sigbit_init[initsig[i]] = false; @@ -130,7 +130,7 @@ struct ShregmapWorker for (auto cell : module->cells()) { - if (opts.ffcells.count(cell->type) && !cell->get_bool_attribute("\\keep")) + if (opts.ffcells.count(cell->type) && !cell->get_bool_attribute(ID::keep)) { IdString d_port = opts.ffcells.at(cell->type).first; IdString q_port = opts.ffcells.at(cell->type).second; @@ -140,10 +140,22 @@ struct ShregmapWorker if (opts.init || sigbit_init.count(q_bit) == 0) { - if (sigbit_chain_next.count(d_bit)) { + auto r = sigbit_chain_next.insert(std::make_pair(d_bit, cell)); + if (!r.second) { + // Insertion not successful means that d_bit is already + // connected to another register, thus mark it as a + // non chain user ... sigbit_with_non_chain_users.insert(d_bit); - } else - sigbit_chain_next[d_bit] = cell; + // ... and clone d_bit into another wire, and use that + // wire as a different key in the d_bit-to-cell dictionary + // so that it can be identified as another chain + // (omitting this common flop) + // Link: https://github.com/YosysHQ/yosys/pull/1085 + Wire *wire = module->addWire(NEW_ID); + module->connect(wire, d_bit); + sigmap.add(wire, d_bit); + sigbit_chain_next.insert(std::make_pair(wire, cell)); + } sigbit_chain_prev[q_bit] = cell; continue; @@ -179,7 +191,7 @@ struct ShregmapWorker IdString q_port = opts.ffcells.at(c1->type).second; auto c1_conn = c1->connections(); - auto c2_conn = c1->connections(); + auto c2_conn = c2->connections(); c1_conn.erase(d_port); c1_conn.erase(q_port); @@ -307,7 +319,7 @@ struct ShregmapWorker initval.push_back(State::S0); remove_init.insert(bit); } - first_cell->setParam("\\INIT", initval); + first_cell->setParam(ID(INIT), initval); } if (opts.zinit) @@ -321,22 +333,22 @@ struct ShregmapWorker int param_clkpol = -1; int param_enpol = 2; - if (first_cell->type == "$_DFF_N_") param_clkpol = 0; - if (first_cell->type == "$_DFF_P_") param_clkpol = 1; + if (first_cell->type == ID($_DFF_N_)) param_clkpol = 0; + if (first_cell->type == ID($_DFF_P_)) param_clkpol = 1; - if (first_cell->type == "$_DFFE_NN_") param_clkpol = 0, param_enpol = 0; - if (first_cell->type == "$_DFFE_NP_") param_clkpol = 0, param_enpol = 1; - if (first_cell->type == "$_DFFE_PN_") param_clkpol = 1, param_enpol = 0; - if (first_cell->type == "$_DFFE_PP_") param_clkpol = 1, param_enpol = 1; + if (first_cell->type == ID($_DFFE_NN_)) param_clkpol = 0, param_enpol = 0; + if (first_cell->type == ID($_DFFE_NP_)) param_clkpol = 0, param_enpol = 1; + if (first_cell->type == ID($_DFFE_PN_)) param_clkpol = 1, param_enpol = 0; + if (first_cell->type == ID($_DFFE_PP_)) param_clkpol = 1, param_enpol = 1; log_assert(param_clkpol >= 0); - first_cell->setParam("\\CLKPOL", param_clkpol); - if (opts.ffe) first_cell->setParam("\\ENPOL", param_enpol); + first_cell->setParam(ID(CLKPOL), param_clkpol); + if (opts.ffe) first_cell->setParam(ID(ENPOL), param_enpol); } first_cell->type = shreg_cell_type_str; first_cell->setPort(q_port, last_cell->getPort(q_port)); - first_cell->setParam("\\DEPTH", depth); + first_cell->setParam(ID(DEPTH), depth); if (opts.tech != nullptr && !opts.tech->fixup(first_cell, taps_dict)) remove_cells.insert(first_cell); @@ -354,18 +366,18 @@ struct ShregmapWorker for (auto wire : module->wires()) { - if (wire->attributes.count("\\init") == 0) + if (wire->attributes.count(ID(init)) == 0) continue; SigSpec initsig = sigmap(wire); - Const &initval = wire->attributes.at("\\init"); + Const &initval = wire->attributes.at(ID(init)); for (int i = 0; i < GetSize(initsig) && i < GetSize(initval); i++) if (remove_init.count(initsig[i])) initval[i] = State::Sx; if (SigSpec(initval).is_fully_undef()) - wire->attributes.erase("\\init"); + wire->attributes.erase(ID(init)); } remove_cells.clear(); @@ -391,7 +403,7 @@ struct ShregmapWorker struct ShregmapPass : public Pass { ShregmapPass() : Pass("shregmap", "map shift registers") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -449,7 +461,7 @@ struct ShregmapPass : public Pass { log(" map to greenpak4 shift registers.\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { ShregmapOptions opts; string clkpol, enpol; @@ -536,19 +548,19 @@ struct ShregmapPass : public Pass { bool en_neg = enpol == "neg" || enpol == "any" || enpol == "any_or_none"; if (clk_pos && en_none) - opts.ffcells["$_DFF_P_"] = make_pair(IdString("\\D"), IdString("\\Q")); + opts.ffcells[ID($_DFF_P_)] = make_pair(IdString(ID(D)), IdString(ID(Q))); if (clk_neg && en_none) - opts.ffcells["$_DFF_N_"] = make_pair(IdString("\\D"), IdString("\\Q")); + opts.ffcells[ID($_DFF_N_)] = make_pair(IdString(ID(D)), IdString(ID(Q))); if (clk_pos && en_pos) - opts.ffcells["$_DFFE_PP_"] = make_pair(IdString("\\D"), IdString("\\Q")); + opts.ffcells[ID($_DFFE_PP_)] = make_pair(IdString(ID(D)), IdString(ID(Q))); if (clk_pos && en_neg) - opts.ffcells["$_DFFE_PN_"] = make_pair(IdString("\\D"), IdString("\\Q")); + opts.ffcells[ID($_DFFE_PN_)] = make_pair(IdString(ID(D)), IdString(ID(Q))); if (clk_neg && en_pos) - opts.ffcells["$_DFFE_NP_"] = make_pair(IdString("\\D"), IdString("\\Q")); + opts.ffcells[ID($_DFFE_NP_)] = make_pair(IdString(ID(D)), IdString(ID(Q))); if (clk_neg && en_neg) - opts.ffcells["$_DFFE_NN_"] = make_pair(IdString("\\D"), IdString("\\Q")); + opts.ffcells[ID($_DFFE_NN_)] = make_pair(IdString(ID(D)), IdString(ID(Q))); if (en_pos || en_neg) opts.ffe = true; diff --git a/passes/techmap/simplemap.cc b/passes/techmap/simplemap.cc index c6b932bdc..91574f3c6 100644 --- a/passes/techmap/simplemap.cc +++ b/passes/techmap/simplemap.cc @@ -28,82 +28,82 @@ YOSYS_NAMESPACE_BEGIN void simplemap_not(RTLIL::Module *module, RTLIL::Cell *cell) { - RTLIL::SigSpec sig_a = cell->getPort("\\A"); - RTLIL::SigSpec sig_y = cell->getPort("\\Y"); + RTLIL::SigSpec sig_a = cell->getPort(ID::A); + RTLIL::SigSpec sig_y = cell->getPort(ID::Y); - sig_a.extend_u0(GetSize(sig_y), cell->parameters.at("\\A_SIGNED").as_bool()); + sig_a.extend_u0(GetSize(sig_y), cell->parameters.at(ID(A_SIGNED)).as_bool()); for (int i = 0; i < GetSize(sig_y); i++) { - RTLIL::Cell *gate = module->addCell(NEW_ID, "$_NOT_"); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\A", sig_a[i]); - gate->setPort("\\Y", sig_y[i]); + RTLIL::Cell *gate = module->addCell(NEW_ID, ID($_NOT_)); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID::A, sig_a[i]); + gate->setPort(ID::Y, sig_y[i]); } } void simplemap_pos(RTLIL::Module *module, RTLIL::Cell *cell) { - RTLIL::SigSpec sig_a = cell->getPort("\\A"); - RTLIL::SigSpec sig_y = cell->getPort("\\Y"); + RTLIL::SigSpec sig_a = cell->getPort(ID::A); + RTLIL::SigSpec sig_y = cell->getPort(ID::Y); - sig_a.extend_u0(GetSize(sig_y), cell->parameters.at("\\A_SIGNED").as_bool()); + sig_a.extend_u0(GetSize(sig_y), cell->parameters.at(ID(A_SIGNED)).as_bool()); module->connect(RTLIL::SigSig(sig_y, sig_a)); } void simplemap_bitop(RTLIL::Module *module, RTLIL::Cell *cell) { - RTLIL::SigSpec sig_a = cell->getPort("\\A"); - RTLIL::SigSpec sig_b = cell->getPort("\\B"); - RTLIL::SigSpec sig_y = cell->getPort("\\Y"); + RTLIL::SigSpec sig_a = cell->getPort(ID::A); + RTLIL::SigSpec sig_b = cell->getPort(ID::B); + RTLIL::SigSpec sig_y = cell->getPort(ID::Y); - sig_a.extend_u0(GetSize(sig_y), cell->parameters.at("\\A_SIGNED").as_bool()); - sig_b.extend_u0(GetSize(sig_y), cell->parameters.at("\\B_SIGNED").as_bool()); + sig_a.extend_u0(GetSize(sig_y), cell->parameters.at(ID(A_SIGNED)).as_bool()); + sig_b.extend_u0(GetSize(sig_y), cell->parameters.at(ID(B_SIGNED)).as_bool()); - if (cell->type == "$xnor") + if (cell->type == ID($xnor)) { RTLIL::SigSpec sig_t = module->addWire(NEW_ID, GetSize(sig_y)); for (int i = 0; i < GetSize(sig_y); i++) { - RTLIL::Cell *gate = module->addCell(NEW_ID, "$_NOT_"); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\A", sig_t[i]); - gate->setPort("\\Y", sig_y[i]); + RTLIL::Cell *gate = module->addCell(NEW_ID, ID($_NOT_)); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID::A, sig_t[i]); + gate->setPort(ID::Y, sig_y[i]); } sig_y = sig_t; } - std::string gate_type; - if (cell->type == "$and") gate_type = "$_AND_"; - if (cell->type == "$or") gate_type = "$_OR_"; - if (cell->type == "$xor") gate_type = "$_XOR_"; - if (cell->type == "$xnor") gate_type = "$_XOR_"; + IdString gate_type; + if (cell->type == ID($and)) gate_type = ID($_AND_); + if (cell->type == ID($or)) gate_type = ID($_OR_); + if (cell->type == ID($xor)) gate_type = ID($_XOR_); + if (cell->type == ID($xnor)) gate_type = ID($_XOR_); log_assert(!gate_type.empty()); for (int i = 0; i < GetSize(sig_y); i++) { RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\A", sig_a[i]); - gate->setPort("\\B", sig_b[i]); - gate->setPort("\\Y", sig_y[i]); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID::A, sig_a[i]); + gate->setPort(ID::B, sig_b[i]); + gate->setPort(ID::Y, sig_y[i]); } } void simplemap_reduce(RTLIL::Module *module, RTLIL::Cell *cell) { - RTLIL::SigSpec sig_a = cell->getPort("\\A"); - RTLIL::SigSpec sig_y = cell->getPort("\\Y"); + RTLIL::SigSpec sig_a = cell->getPort(ID::A); + RTLIL::SigSpec sig_y = cell->getPort(ID::Y); if (sig_y.size() == 0) return; if (sig_a.size() == 0) { - if (cell->type == "$reduce_and") module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(1, sig_y.size()))); - if (cell->type == "$reduce_or") module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(0, sig_y.size()))); - if (cell->type == "$reduce_xor") module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(0, sig_y.size()))); - if (cell->type == "$reduce_xnor") module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(1, sig_y.size()))); - if (cell->type == "$reduce_bool") module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(0, sig_y.size()))); + if (cell->type == ID($reduce_and)) module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(1, sig_y.size()))); + if (cell->type == ID($reduce_or)) module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(0, sig_y.size()))); + if (cell->type == ID($reduce_xor)) module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(0, sig_y.size()))); + if (cell->type == ID($reduce_xnor)) module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(1, sig_y.size()))); + if (cell->type == ID($reduce_bool)) module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(0, sig_y.size()))); return; } @@ -112,12 +112,12 @@ void simplemap_reduce(RTLIL::Module *module, RTLIL::Cell *cell) sig_y = sig_y.extract(0, 1); } - std::string gate_type; - if (cell->type == "$reduce_and") gate_type = "$_AND_"; - if (cell->type == "$reduce_or") gate_type = "$_OR_"; - if (cell->type == "$reduce_xor") gate_type = "$_XOR_"; - if (cell->type == "$reduce_xnor") gate_type = "$_XOR_"; - if (cell->type == "$reduce_bool") gate_type = "$_OR_"; + IdString gate_type; + if (cell->type == ID($reduce_and)) gate_type = ID($_AND_); + if (cell->type == ID($reduce_or)) gate_type = ID($_OR_); + if (cell->type == ID($reduce_xor)) gate_type = ID($_XOR_); + if (cell->type == ID($reduce_xnor)) gate_type = ID($_XOR_); + if (cell->type == ID($reduce_bool)) gate_type = ID($_OR_); log_assert(!gate_type.empty()); RTLIL::Cell *last_output_cell = NULL; @@ -134,22 +134,22 @@ void simplemap_reduce(RTLIL::Module *module, RTLIL::Cell *cell) } RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\A", sig_a[i]); - gate->setPort("\\B", sig_a[i+1]); - gate->setPort("\\Y", sig_t[i/2]); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID::A, sig_a[i]); + gate->setPort(ID::B, sig_a[i+1]); + gate->setPort(ID::Y, sig_t[i/2]); last_output_cell = gate; } sig_a = sig_t; } - if (cell->type == "$reduce_xnor") { + if (cell->type == ID($reduce_xnor)) { RTLIL::SigSpec sig_t = module->addWire(NEW_ID); - RTLIL::Cell *gate = module->addCell(NEW_ID, "$_NOT_"); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\A", sig_a); - gate->setPort("\\Y", sig_t); + RTLIL::Cell *gate = module->addCell(NEW_ID, ID($_NOT_)); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID::A, sig_a); + gate->setPort(ID::Y, sig_t); last_output_cell = gate; sig_a = sig_t; } @@ -157,7 +157,7 @@ void simplemap_reduce(RTLIL::Module *module, RTLIL::Cell *cell) if (last_output_cell == NULL) { module->connect(RTLIL::SigSig(sig_y, sig_a)); } else { - last_output_cell->setPort("\\Y", sig_y); + last_output_cell->setPort(ID::Y, sig_y); } } @@ -174,26 +174,26 @@ static void logic_reduce(RTLIL::Module *module, RTLIL::SigSpec &sig, RTLIL::Cell continue; } - RTLIL::Cell *gate = module->addCell(NEW_ID, "$_OR_"); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\A", sig[i]); - gate->setPort("\\B", sig[i+1]); - gate->setPort("\\Y", sig_t[i/2]); + RTLIL::Cell *gate = module->addCell(NEW_ID, ID($_OR_)); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID::A, sig[i]); + gate->setPort(ID::B, sig[i+1]); + gate->setPort(ID::Y, sig_t[i/2]); } sig = sig_t; } if (sig.size() == 0) - sig = RTLIL::SigSpec(0, 1); + sig = State::S0; } void simplemap_lognot(RTLIL::Module *module, RTLIL::Cell *cell) { - RTLIL::SigSpec sig_a = cell->getPort("\\A"); + RTLIL::SigSpec sig_a = cell->getPort(ID::A); logic_reduce(module, sig_a, cell); - RTLIL::SigSpec sig_y = cell->getPort("\\Y"); + RTLIL::SigSpec sig_y = cell->getPort(ID::Y); if (sig_y.size() == 0) return; @@ -203,21 +203,21 @@ void simplemap_lognot(RTLIL::Module *module, RTLIL::Cell *cell) sig_y = sig_y.extract(0, 1); } - RTLIL::Cell *gate = module->addCell(NEW_ID, "$_NOT_"); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\A", sig_a); - gate->setPort("\\Y", sig_y); + RTLIL::Cell *gate = module->addCell(NEW_ID, ID($_NOT_)); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID::A, sig_a); + gate->setPort(ID::Y, sig_y); } void simplemap_logbin(RTLIL::Module *module, RTLIL::Cell *cell) { - RTLIL::SigSpec sig_a = cell->getPort("\\A"); + RTLIL::SigSpec sig_a = cell->getPort(ID::A); logic_reduce(module, sig_a, cell); - RTLIL::SigSpec sig_b = cell->getPort("\\B"); + RTLIL::SigSpec sig_b = cell->getPort(ID::B); logic_reduce(module, sig_b, cell); - RTLIL::SigSpec sig_y = cell->getPort("\\Y"); + RTLIL::SigSpec sig_y = cell->getPort(ID::Y); if (sig_y.size() == 0) return; @@ -227,41 +227,41 @@ void simplemap_logbin(RTLIL::Module *module, RTLIL::Cell *cell) sig_y = sig_y.extract(0, 1); } - std::string gate_type; - if (cell->type == "$logic_and") gate_type = "$_AND_"; - if (cell->type == "$logic_or") gate_type = "$_OR_"; + IdString gate_type; + if (cell->type == ID($logic_and)) gate_type = ID($_AND_); + if (cell->type == ID($logic_or)) gate_type = ID($_OR_); log_assert(!gate_type.empty()); RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\A", sig_a); - gate->setPort("\\B", sig_b); - gate->setPort("\\Y", sig_y); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID::A, sig_a); + gate->setPort(ID::B, sig_b); + gate->setPort(ID::Y, sig_y); } void simplemap_eqne(RTLIL::Module *module, RTLIL::Cell *cell) { - RTLIL::SigSpec sig_a = cell->getPort("\\A"); - RTLIL::SigSpec sig_b = cell->getPort("\\B"); - RTLIL::SigSpec sig_y = cell->getPort("\\Y"); - bool is_signed = cell->parameters.at("\\A_SIGNED").as_bool(); - bool is_ne = cell->type == "$ne" || cell->type == "$nex"; + RTLIL::SigSpec sig_a = cell->getPort(ID::A); + RTLIL::SigSpec sig_b = cell->getPort(ID::B); + RTLIL::SigSpec sig_y = cell->getPort(ID::Y); + bool is_signed = cell->parameters.at(ID(A_SIGNED)).as_bool(); + bool is_ne = cell->type.in(ID($ne), ID($nex)); RTLIL::SigSpec xor_out = module->addWire(NEW_ID, max(GetSize(sig_a), GetSize(sig_b))); RTLIL::Cell *xor_cell = module->addXor(NEW_ID, sig_a, sig_b, xor_out, is_signed); - xor_cell->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); + xor_cell->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); simplemap_bitop(module, xor_cell); module->remove(xor_cell); RTLIL::SigSpec reduce_out = is_ne ? sig_y : module->addWire(NEW_ID); RTLIL::Cell *reduce_cell = module->addReduceOr(NEW_ID, xor_out, reduce_out); - reduce_cell->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); + reduce_cell->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); simplemap_reduce(module, reduce_cell); module->remove(reduce_cell); if (!is_ne) { RTLIL::Cell *not_cell = module->addLogicNot(NEW_ID, reduce_out, sig_y); - not_cell->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); + not_cell->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); simplemap_lognot(module, not_cell); module->remove(not_cell); } @@ -269,65 +269,65 @@ void simplemap_eqne(RTLIL::Module *module, RTLIL::Cell *cell) void simplemap_mux(RTLIL::Module *module, RTLIL::Cell *cell) { - RTLIL::SigSpec sig_a = cell->getPort("\\A"); - RTLIL::SigSpec sig_b = cell->getPort("\\B"); - RTLIL::SigSpec sig_y = cell->getPort("\\Y"); + RTLIL::SigSpec sig_a = cell->getPort(ID::A); + RTLIL::SigSpec sig_b = cell->getPort(ID::B); + RTLIL::SigSpec sig_y = cell->getPort(ID::Y); for (int i = 0; i < GetSize(sig_y); i++) { - RTLIL::Cell *gate = module->addCell(NEW_ID, "$_MUX_"); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\A", sig_a[i]); - gate->setPort("\\B", sig_b[i]); - gate->setPort("\\S", cell->getPort("\\S")); - gate->setPort("\\Y", sig_y[i]); + RTLIL::Cell *gate = module->addCell(NEW_ID, ID($_MUX_)); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID::A, sig_a[i]); + gate->setPort(ID::B, sig_b[i]); + gate->setPort(ID(S), cell->getPort(ID(S))); + gate->setPort(ID::Y, sig_y[i]); } } void simplemap_tribuf(RTLIL::Module *module, RTLIL::Cell *cell) { - RTLIL::SigSpec sig_a = cell->getPort("\\A"); - RTLIL::SigSpec sig_e = cell->getPort("\\EN"); - RTLIL::SigSpec sig_y = cell->getPort("\\Y"); + RTLIL::SigSpec sig_a = cell->getPort(ID::A); + RTLIL::SigSpec sig_e = cell->getPort(ID(EN)); + RTLIL::SigSpec sig_y = cell->getPort(ID::Y); for (int i = 0; i < GetSize(sig_y); i++) { - RTLIL::Cell *gate = module->addCell(NEW_ID, "$_TBUF_"); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\A", sig_a[i]); - gate->setPort("\\E", sig_e); - gate->setPort("\\Y", sig_y[i]); + RTLIL::Cell *gate = module->addCell(NEW_ID, ID($_TBUF_)); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID::A, sig_a[i]); + gate->setPort(ID(E), sig_e); + gate->setPort(ID::Y, sig_y[i]); } } void simplemap_lut(RTLIL::Module *module, RTLIL::Cell *cell) { - SigSpec lut_ctrl = cell->getPort("\\A"); - SigSpec lut_data = cell->getParam("\\LUT"); - lut_data.extend_u0(1 << cell->getParam("\\WIDTH").as_int()); + SigSpec lut_ctrl = cell->getPort(ID::A); + SigSpec lut_data = cell->getParam(ID(LUT)); + lut_data.extend_u0(1 << cell->getParam(ID(WIDTH)).as_int()); for (int idx = 0; GetSize(lut_data) > 1; idx++) { SigSpec sig_s = lut_ctrl[idx]; SigSpec new_lut_data = module->addWire(NEW_ID, GetSize(lut_data)/2); for (int i = 0; i < GetSize(lut_data); i += 2) { - RTLIL::Cell *gate = module->addCell(NEW_ID, "$_MUX_"); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\A", lut_data[i]); - gate->setPort("\\B", lut_data[i+1]); - gate->setPort("\\S", lut_ctrl[idx]); - gate->setPort("\\Y", new_lut_data[i/2]); + RTLIL::Cell *gate = module->addCell(NEW_ID, ID($_MUX_)); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID::A, lut_data[i]); + gate->setPort(ID::B, lut_data[i+1]); + gate->setPort(ID(S), lut_ctrl[idx]); + gate->setPort(ID::Y, new_lut_data[i/2]); } lut_data = new_lut_data; } - module->connect(cell->getPort("\\Y"), lut_data); + module->connect(cell->getPort(ID::Y), lut_data); } void simplemap_sop(RTLIL::Module *module, RTLIL::Cell *cell) { - SigSpec ctrl = cell->getPort("\\A"); - SigSpec table = cell->getParam("\\TABLE"); + SigSpec ctrl = cell->getPort(ID::A); + SigSpec table = cell->getParam(ID(TABLE)); - int width = cell->getParam("\\WIDTH").as_int(); - int depth = cell->getParam("\\DEPTH").as_int(); + int width = cell->getParam(ID(WIDTH)).as_int(); + int depth = cell->getParam(ID(DEPTH)).as_int(); table.extend_u0(2 * width * depth); SigSpec products; @@ -348,213 +348,213 @@ void simplemap_sop(RTLIL::Module *module, RTLIL::Cell *cell) products.append(GetSize(in) > 0 ? module->Eq(NEW_ID, in, pat) : State::S1); } - module->connect(cell->getPort("\\Y"), module->ReduceOr(NEW_ID, products)); + module->connect(cell->getPort(ID::Y), module->ReduceOr(NEW_ID, products)); } void simplemap_slice(RTLIL::Module *module, RTLIL::Cell *cell) { - int offset = cell->parameters.at("\\OFFSET").as_int(); - RTLIL::SigSpec sig_a = cell->getPort("\\A"); - RTLIL::SigSpec sig_y = cell->getPort("\\Y"); + int offset = cell->parameters.at(ID(OFFSET)).as_int(); + RTLIL::SigSpec sig_a = cell->getPort(ID::A); + RTLIL::SigSpec sig_y = cell->getPort(ID::Y); module->connect(RTLIL::SigSig(sig_y, sig_a.extract(offset, sig_y.size()))); } void simplemap_concat(RTLIL::Module *module, RTLIL::Cell *cell) { - RTLIL::SigSpec sig_ab = cell->getPort("\\A"); - sig_ab.append(cell->getPort("\\B")); - RTLIL::SigSpec sig_y = cell->getPort("\\Y"); + RTLIL::SigSpec sig_ab = cell->getPort(ID::A); + sig_ab.append(cell->getPort(ID::B)); + RTLIL::SigSpec sig_y = cell->getPort(ID::Y); module->connect(RTLIL::SigSig(sig_y, sig_ab)); } void simplemap_sr(RTLIL::Module *module, RTLIL::Cell *cell) { - int width = cell->parameters.at("\\WIDTH").as_int(); - char set_pol = cell->parameters.at("\\SET_POLARITY").as_bool() ? 'P' : 'N'; - char clr_pol = cell->parameters.at("\\CLR_POLARITY").as_bool() ? 'P' : 'N'; + int width = cell->parameters.at(ID(WIDTH)).as_int(); + char set_pol = cell->parameters.at(ID(SET_POLARITY)).as_bool() ? 'P' : 'N'; + char clr_pol = cell->parameters.at(ID(CLR_POLARITY)).as_bool() ? 'P' : 'N'; - RTLIL::SigSpec sig_s = cell->getPort("\\SET"); - RTLIL::SigSpec sig_r = cell->getPort("\\CLR"); - RTLIL::SigSpec sig_q = cell->getPort("\\Q"); + RTLIL::SigSpec sig_s = cell->getPort(ID(SET)); + RTLIL::SigSpec sig_r = cell->getPort(ID(CLR)); + RTLIL::SigSpec sig_q = cell->getPort(ID(Q)); std::string gate_type = stringf("$_SR_%c%c_", set_pol, clr_pol); for (int i = 0; i < width; i++) { RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\S", sig_s[i]); - gate->setPort("\\R", sig_r[i]); - gate->setPort("\\Q", sig_q[i]); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID(S), sig_s[i]); + gate->setPort(ID(R), sig_r[i]); + gate->setPort(ID(Q), sig_q[i]); } } void simplemap_ff(RTLIL::Module *module, RTLIL::Cell *cell) { - int width = cell->parameters.at("\\WIDTH").as_int(); + int width = cell->parameters.at(ID(WIDTH)).as_int(); - RTLIL::SigSpec sig_d = cell->getPort("\\D"); - RTLIL::SigSpec sig_q = cell->getPort("\\Q"); + RTLIL::SigSpec sig_d = cell->getPort(ID(D)); + RTLIL::SigSpec sig_q = cell->getPort(ID(Q)); - std::string gate_type = "$_FF_"; + IdString gate_type = ID($_FF_); for (int i = 0; i < width; i++) { RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\D", sig_d[i]); - gate->setPort("\\Q", sig_q[i]); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID(D), sig_d[i]); + gate->setPort(ID(Q), sig_q[i]); } } void simplemap_dff(RTLIL::Module *module, RTLIL::Cell *cell) { - int width = cell->parameters.at("\\WIDTH").as_int(); - char clk_pol = cell->parameters.at("\\CLK_POLARITY").as_bool() ? 'P' : 'N'; + int width = cell->parameters.at(ID(WIDTH)).as_int(); + char clk_pol = cell->parameters.at(ID(CLK_POLARITY)).as_bool() ? 'P' : 'N'; - RTLIL::SigSpec sig_clk = cell->getPort("\\CLK"); - RTLIL::SigSpec sig_d = cell->getPort("\\D"); - RTLIL::SigSpec sig_q = cell->getPort("\\Q"); + RTLIL::SigSpec sig_clk = cell->getPort(ID(CLK)); + RTLIL::SigSpec sig_d = cell->getPort(ID(D)); + RTLIL::SigSpec sig_q = cell->getPort(ID(Q)); - std::string gate_type = stringf("$_DFF_%c_", clk_pol); + IdString gate_type = stringf("$_DFF_%c_", clk_pol); for (int i = 0; i < width; i++) { RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\C", sig_clk); - gate->setPort("\\D", sig_d[i]); - gate->setPort("\\Q", sig_q[i]); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID(C), sig_clk); + gate->setPort(ID(D), sig_d[i]); + gate->setPort(ID(Q), sig_q[i]); } } void simplemap_dffe(RTLIL::Module *module, RTLIL::Cell *cell) { - int width = cell->parameters.at("\\WIDTH").as_int(); - char clk_pol = cell->parameters.at("\\CLK_POLARITY").as_bool() ? 'P' : 'N'; - char en_pol = cell->parameters.at("\\EN_POLARITY").as_bool() ? 'P' : 'N'; + int width = cell->parameters.at(ID(WIDTH)).as_int(); + char clk_pol = cell->parameters.at(ID(CLK_POLARITY)).as_bool() ? 'P' : 'N'; + char en_pol = cell->parameters.at(ID(EN_POLARITY)).as_bool() ? 'P' : 'N'; - RTLIL::SigSpec sig_clk = cell->getPort("\\CLK"); - RTLIL::SigSpec sig_en = cell->getPort("\\EN"); - RTLIL::SigSpec sig_d = cell->getPort("\\D"); - RTLIL::SigSpec sig_q = cell->getPort("\\Q"); + RTLIL::SigSpec sig_clk = cell->getPort(ID(CLK)); + RTLIL::SigSpec sig_en = cell->getPort(ID(EN)); + RTLIL::SigSpec sig_d = cell->getPort(ID(D)); + RTLIL::SigSpec sig_q = cell->getPort(ID(Q)); - std::string gate_type = stringf("$_DFFE_%c%c_", clk_pol, en_pol); + IdString gate_type = stringf("$_DFFE_%c%c_", clk_pol, en_pol); for (int i = 0; i < width; i++) { RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\C", sig_clk); - gate->setPort("\\E", sig_en); - gate->setPort("\\D", sig_d[i]); - gate->setPort("\\Q", sig_q[i]); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID(C), sig_clk); + gate->setPort(ID(E), sig_en); + gate->setPort(ID(D), sig_d[i]); + gate->setPort(ID(Q), sig_q[i]); } } void simplemap_dffsr(RTLIL::Module *module, RTLIL::Cell *cell) { - int width = cell->parameters.at("\\WIDTH").as_int(); - char clk_pol = cell->parameters.at("\\CLK_POLARITY").as_bool() ? 'P' : 'N'; - char set_pol = cell->parameters.at("\\SET_POLARITY").as_bool() ? 'P' : 'N'; - char clr_pol = cell->parameters.at("\\CLR_POLARITY").as_bool() ? 'P' : 'N'; + int width = cell->parameters.at(ID(WIDTH)).as_int(); + char clk_pol = cell->parameters.at(ID(CLK_POLARITY)).as_bool() ? 'P' : 'N'; + char set_pol = cell->parameters.at(ID(SET_POLARITY)).as_bool() ? 'P' : 'N'; + char clr_pol = cell->parameters.at(ID(CLR_POLARITY)).as_bool() ? 'P' : 'N'; - RTLIL::SigSpec sig_clk = cell->getPort("\\CLK"); - RTLIL::SigSpec sig_s = cell->getPort("\\SET"); - RTLIL::SigSpec sig_r = cell->getPort("\\CLR"); - RTLIL::SigSpec sig_d = cell->getPort("\\D"); - RTLIL::SigSpec sig_q = cell->getPort("\\Q"); + RTLIL::SigSpec sig_clk = cell->getPort(ID(CLK)); + RTLIL::SigSpec sig_s = cell->getPort(ID(SET)); + RTLIL::SigSpec sig_r = cell->getPort(ID(CLR)); + RTLIL::SigSpec sig_d = cell->getPort(ID(D)); + RTLIL::SigSpec sig_q = cell->getPort(ID(Q)); - std::string gate_type = stringf("$_DFFSR_%c%c%c_", clk_pol, set_pol, clr_pol); + IdString gate_type = stringf("$_DFFSR_%c%c%c_", clk_pol, set_pol, clr_pol); for (int i = 0; i < width; i++) { RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\C", sig_clk); - gate->setPort("\\S", sig_s[i]); - gate->setPort("\\R", sig_r[i]); - gate->setPort("\\D", sig_d[i]); - gate->setPort("\\Q", sig_q[i]); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID(C), sig_clk); + gate->setPort(ID(S), sig_s[i]); + gate->setPort(ID(R), sig_r[i]); + gate->setPort(ID(D), sig_d[i]); + gate->setPort(ID(Q), sig_q[i]); } } void simplemap_adff(RTLIL::Module *module, RTLIL::Cell *cell) { - int width = cell->parameters.at("\\WIDTH").as_int(); - char clk_pol = cell->parameters.at("\\CLK_POLARITY").as_bool() ? 'P' : 'N'; - char rst_pol = cell->parameters.at("\\ARST_POLARITY").as_bool() ? 'P' : 'N'; + int width = cell->parameters.at(ID(WIDTH)).as_int(); + char clk_pol = cell->parameters.at(ID(CLK_POLARITY)).as_bool() ? 'P' : 'N'; + char rst_pol = cell->parameters.at(ID(ARST_POLARITY)).as_bool() ? 'P' : 'N'; - std::vector<RTLIL::State> rst_val = cell->parameters.at("\\ARST_VALUE").bits; + std::vector<RTLIL::State> rst_val = cell->parameters.at(ID(ARST_VALUE)).bits; while (int(rst_val.size()) < width) rst_val.push_back(RTLIL::State::S0); - RTLIL::SigSpec sig_clk = cell->getPort("\\CLK"); - RTLIL::SigSpec sig_rst = cell->getPort("\\ARST"); - RTLIL::SigSpec sig_d = cell->getPort("\\D"); - RTLIL::SigSpec sig_q = cell->getPort("\\Q"); + RTLIL::SigSpec sig_clk = cell->getPort(ID(CLK)); + RTLIL::SigSpec sig_rst = cell->getPort(ID(ARST)); + RTLIL::SigSpec sig_d = cell->getPort(ID(D)); + RTLIL::SigSpec sig_q = cell->getPort(ID(Q)); - std::string gate_type_0 = stringf("$_DFF_%c%c0_", clk_pol, rst_pol); - std::string gate_type_1 = stringf("$_DFF_%c%c1_", clk_pol, rst_pol); + IdString gate_type_0 = stringf("$_DFF_%c%c0_", clk_pol, rst_pol); + IdString gate_type_1 = stringf("$_DFF_%c%c1_", clk_pol, rst_pol); for (int i = 0; i < width; i++) { RTLIL::Cell *gate = module->addCell(NEW_ID, rst_val.at(i) == RTLIL::State::S1 ? gate_type_1 : gate_type_0); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\C", sig_clk); - gate->setPort("\\R", sig_rst); - gate->setPort("\\D", sig_d[i]); - gate->setPort("\\Q", sig_q[i]); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID(C), sig_clk); + gate->setPort(ID(R), sig_rst); + gate->setPort(ID(D), sig_d[i]); + gate->setPort(ID(Q), sig_q[i]); } } void simplemap_dlatch(RTLIL::Module *module, RTLIL::Cell *cell) { - int width = cell->parameters.at("\\WIDTH").as_int(); - char en_pol = cell->parameters.at("\\EN_POLARITY").as_bool() ? 'P' : 'N'; + int width = cell->parameters.at(ID(WIDTH)).as_int(); + char en_pol = cell->parameters.at(ID(EN_POLARITY)).as_bool() ? 'P' : 'N'; - RTLIL::SigSpec sig_en = cell->getPort("\\EN"); - RTLIL::SigSpec sig_d = cell->getPort("\\D"); - RTLIL::SigSpec sig_q = cell->getPort("\\Q"); + RTLIL::SigSpec sig_en = cell->getPort(ID(EN)); + RTLIL::SigSpec sig_d = cell->getPort(ID(D)); + RTLIL::SigSpec sig_q = cell->getPort(ID(Q)); - std::string gate_type = stringf("$_DLATCH_%c_", en_pol); + IdString gate_type = stringf("$_DLATCH_%c_", en_pol); for (int i = 0; i < width; i++) { RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type); - gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src")); - gate->setPort("\\E", sig_en); - gate->setPort("\\D", sig_d[i]); - gate->setPort("\\Q", sig_q[i]); + gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src))); + gate->setPort(ID(E), sig_en); + gate->setPort(ID(D), sig_d[i]); + gate->setPort(ID(Q), sig_q[i]); } } void simplemap_get_mappers(std::map<RTLIL::IdString, void(*)(RTLIL::Module*, RTLIL::Cell*)> &mappers) { - mappers["$not"] = simplemap_not; - mappers["$pos"] = simplemap_pos; - mappers["$and"] = simplemap_bitop; - mappers["$or"] = simplemap_bitop; - mappers["$xor"] = simplemap_bitop; - mappers["$xnor"] = simplemap_bitop; - mappers["$reduce_and"] = simplemap_reduce; - mappers["$reduce_or"] = simplemap_reduce; - mappers["$reduce_xor"] = simplemap_reduce; - mappers["$reduce_xnor"] = simplemap_reduce; - mappers["$reduce_bool"] = simplemap_reduce; - mappers["$logic_not"] = simplemap_lognot; - mappers["$logic_and"] = simplemap_logbin; - mappers["$logic_or"] = simplemap_logbin; - mappers["$eq"] = simplemap_eqne; - mappers["$eqx"] = simplemap_eqne; - mappers["$ne"] = simplemap_eqne; - mappers["$nex"] = simplemap_eqne; - mappers["$mux"] = simplemap_mux; - mappers["$tribuf"] = simplemap_tribuf; - mappers["$lut"] = simplemap_lut; - mappers["$sop"] = simplemap_sop; - mappers["$slice"] = simplemap_slice; - mappers["$concat"] = simplemap_concat; - mappers["$sr"] = simplemap_sr; - mappers["$ff"] = simplemap_ff; - mappers["$dff"] = simplemap_dff; - mappers["$dffe"] = simplemap_dffe; - mappers["$dffsr"] = simplemap_dffsr; - mappers["$adff"] = simplemap_adff; - mappers["$dlatch"] = simplemap_dlatch; + mappers[ID($not)] = simplemap_not; + mappers[ID($pos)] = simplemap_pos; + mappers[ID($and)] = simplemap_bitop; + mappers[ID($or)] = simplemap_bitop; + mappers[ID($xor)] = simplemap_bitop; + mappers[ID($xnor)] = simplemap_bitop; + mappers[ID($reduce_and)] = simplemap_reduce; + mappers[ID($reduce_or)] = simplemap_reduce; + mappers[ID($reduce_xor)] = simplemap_reduce; + mappers[ID($reduce_xnor)] = simplemap_reduce; + mappers[ID($reduce_bool)] = simplemap_reduce; + mappers[ID($logic_not)] = simplemap_lognot; + mappers[ID($logic_and)] = simplemap_logbin; + mappers[ID($logic_or)] = simplemap_logbin; + mappers[ID($eq)] = simplemap_eqne; + mappers[ID($eqx)] = simplemap_eqne; + mappers[ID($ne)] = simplemap_eqne; + mappers[ID($nex)] = simplemap_eqne; + mappers[ID($mux)] = simplemap_mux; + mappers[ID($tribuf)] = simplemap_tribuf; + mappers[ID($lut)] = simplemap_lut; + mappers[ID($sop)] = simplemap_sop; + mappers[ID($slice)] = simplemap_slice; + mappers[ID($concat)] = simplemap_concat; + mappers[ID($sr)] = simplemap_sr; + mappers[ID($ff)] = simplemap_ff; + mappers[ID($dff)] = simplemap_dff; + mappers[ID($dffe)] = simplemap_dffe; + mappers[ID($dffsr)] = simplemap_dffsr; + mappers[ID($adff)] = simplemap_adff; + mappers[ID($dlatch)] = simplemap_dlatch; } void simplemap(RTLIL::Module *module, RTLIL::Cell *cell) @@ -575,7 +575,7 @@ PRIVATE_NAMESPACE_BEGIN struct SimplemapPass : public Pass { SimplemapPass() : Pass("simplemap", "mapping simple coarse-grain cells") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -590,7 +590,7 @@ struct SimplemapPass : public Pass { log(" $sr, $ff, $dff, $dffsr, $adff, $dlatch\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing SIMPLEMAP pass (map simple cells to gate primitives).\n"); extra_args(args, 1, design); @@ -599,7 +599,7 @@ struct SimplemapPass : public Pass { simplemap_get_mappers(mappers); for (auto mod : design->modules()) { - if (!design->selected(mod)) + if (!design->selected(mod) || mod->get_blackbox_attribute()) continue; std::vector<RTLIL::Cell*> cells = mod->cells(); for (auto cell : cells) { diff --git a/passes/techmap/techmap.cc b/passes/techmap/techmap.cc index d9e81e808..0c57733d4 100644 --- a/passes/techmap/techmap.cc +++ b/passes/techmap/techmap.cc @@ -39,20 +39,20 @@ YOSYS_NAMESPACE_END USING_YOSYS_NAMESPACE PRIVATE_NAMESPACE_BEGIN -void apply_prefix(std::string prefix, std::string &id) +void apply_prefix(IdString prefix, IdString &id) { if (id[0] == '\\') - id = prefix + "." + id.substr(1); + id = stringf("%s.%s", prefix.c_str(), id.c_str()+1); else - id = "$techmap" + prefix + "." + id; + id = stringf("$techmap%s.%s", prefix.c_str(), id.c_str()); } -void apply_prefix(std::string prefix, RTLIL::SigSpec &sig, RTLIL::Module *module) +void apply_prefix(IdString prefix, RTLIL::SigSpec &sig, RTLIL::Module *module) { vector<SigChunk> chunks = sig; for (auto &chunk : chunks) if (chunk.wire != NULL) { - std::string wire_name = chunk.wire->name.str(); + IdString wire_name = chunk.wire->name; apply_prefix(prefix, wire_name); log_assert(module->wires_.count(wire_name) > 0); chunk.wire = module->wires_[wire_name]; @@ -72,6 +72,8 @@ struct TechmapWorker pool<IdString> flatten_done_list; pool<Cell*> flatten_keep_list; + pool<string> log_msg_cache; + struct TechmapWireData { RTLIL::Wire *wire; RTLIL::SigSpec value; @@ -84,6 +86,7 @@ struct TechmapWorker bool flatten_mode; bool recursive_mode; bool autoproc_mode; + bool ignore_wb; TechmapWorker() { @@ -92,6 +95,7 @@ struct TechmapWorker flatten_mode = false; recursive_mode = false; autoproc_mode = false; + ignore_wb = false; } std::string constmap_tpl_name(SigMap &sigmap, RTLIL::Module *tpl, RTLIL::Cell *cell, bool verbose) @@ -141,8 +145,8 @@ struct TechmapWorker record.wire = it.second; record.value = it.second; result[p].push_back(record); - it.second->attributes["\\keep"] = RTLIL::Const(1); - it.second->attributes["\\_techmap_special_"] = RTLIL::Const(1); + it.second->attributes[ID::keep] = RTLIL::Const(1); + it.second->attributes[ID(_techmap_special_)] = RTLIL::Const(1); } } @@ -171,54 +175,94 @@ struct TechmapWorker } std::string orig_cell_name; - pool<string> extra_src_attrs; + pool<string> extra_src_attrs = cell->get_strpool_attribute(ID(src)); - if (!flatten_mode) - { + if (!flatten_mode) { for (auto &it : tpl->cells_) - if (it.first == "\\_TECHMAP_REPLACE_") { + if (it.first == ID(_TECHMAP_REPLACE_)) { orig_cell_name = cell->name.str(); module->rename(cell, stringf("$techmap%d", autoidx++) + cell->name.str()); break; } - - extra_src_attrs = cell->get_strpool_attribute("\\src"); } dict<IdString, IdString> memory_renames; for (auto &it : tpl->memories) { - std::string m_name = it.first.str(); - apply_prefix(cell->name.str(), m_name); + IdString m_name = it.first; + apply_prefix(cell->name, m_name); RTLIL::Memory *m = new RTLIL::Memory; m->name = m_name; m->width = it.second->width; m->start_offset = it.second->start_offset; m->size = it.second->size; m->attributes = it.second->attributes; - if (m->attributes.count("\\src")) - m->add_strpool_attribute("\\src", extra_src_attrs); + if (m->attributes.count(ID(src))) + m->add_strpool_attribute(ID(src), extra_src_attrs); module->memories[m->name] = m; memory_renames[it.first] = m->name; design->select(module, m); } std::map<RTLIL::IdString, RTLIL::IdString> positional_ports; + dict<Wire*, IdString> temp_renamed_wires; + pool<SigBit> autopurge_tpl_bits; - for (auto &it : tpl->wires_) { + for (auto &it : tpl->wires_) + { if (it.second->port_id > 0) - positional_ports[stringf("$%d", it.second->port_id)] = it.first; - std::string w_name = it.second->name.str(); - apply_prefix(cell->name.str(), w_name); - RTLIL::Wire *w = module->addWire(w_name, it.second); - w->port_input = false; - w->port_output = false; - w->port_id = 0; - if (it.second->get_bool_attribute("\\_techmap_special_")) - w->attributes.clear(); - if (w->attributes.count("\\src")) - w->add_strpool_attribute("\\src", extra_src_attrs); + { + IdString posportname = stringf("$%d", it.second->port_id); + positional_ports[posportname] = it.first; + + if (!flatten_mode && it.second->get_bool_attribute(ID(techmap_autopurge)) && + (!cell->hasPort(it.second->name) || !GetSize(cell->getPort(it.second->name))) && + (!cell->hasPort(posportname) || !GetSize(cell->getPort(posportname)))) + { + if (sigmaps.count(tpl) == 0) + sigmaps[tpl].set(tpl); + + for (auto bit : sigmaps.at(tpl)(it.second)) + if (bit.wire != nullptr) + autopurge_tpl_bits.insert(bit); + } + } + IdString w_name = it.second->name; + apply_prefix(cell->name, w_name); + RTLIL::Wire *w = module->wire(w_name); + if (w != nullptr) { + if (!flatten_mode || !w->get_bool_attribute(ID(hierconn))) { + temp_renamed_wires[w] = w->name; + module->rename(w, NEW_ID); + w = nullptr; + } else { + w->attributes.erase(ID(hierconn)); + if (GetSize(w) < GetSize(it.second)) { + log_warning("Widening signal %s.%s to match size of %s.%s (via %s.%s).\n", log_id(module), log_id(w), + log_id(tpl), log_id(it.second), log_id(module), log_id(cell)); + w->width = GetSize(it.second); + } + } + } + if (w == nullptr) { + w = module->addWire(w_name, it.second); + w->port_input = false; + w->port_output = false; + w->port_id = 0; + if (!flatten_mode) + w->attributes.erase(ID(techmap_autopurge)); + if (it.second->get_bool_attribute(ID(_techmap_special_))) + w->attributes.clear(); + if (w->attributes.count(ID(src))) + w->add_strpool_attribute(ID(src), extra_src_attrs); + } design->select(module, w); + + if (it.second->name.begins_with("\\_TECHMAP_REPLACE_.")) { + IdString replace_name = stringf("%s%s", orig_cell_name.c_str(), it.second->name.c_str() + strlen("\\_TECHMAP_REPLACE_")); + Wire *replace_w = module->addWire(replace_name, it.second); + module->connect(replace_w, w); + } } SigMap tpl_sigmap(tpl); @@ -242,7 +286,7 @@ struct TechmapWorker if (positional_ports.count(portname) > 0) portname = positional_ports.at(portname); if (tpl->wires_.count(portname) == 0 || tpl->wires_.at(portname)->port_id == 0) { - if (portname.substr(0, 1) == "$") + if (portname.begins_with("$")) log_error("Can't map port `%s' of cell `%s' to template `%s'!\n", portname.c_str(), cell->name.c_str(), tpl->name.c_str()); continue; } @@ -256,18 +300,18 @@ struct TechmapWorker if (w->port_output && !w->port_input) { c.first = it.second; c.second = RTLIL::SigSpec(w); - apply_prefix(cell->name.str(), c.second, module); + apply_prefix(cell->name, c.second, module); extra_connect.first = c.second; extra_connect.second = c.first; } else if (!w->port_output && w->port_input) { c.first = RTLIL::SigSpec(w); c.second = it.second; - apply_prefix(cell->name.str(), c.first, module); + apply_prefix(cell->name, c.first, module); extra_connect.first = c.first; extra_connect.second = c.second; } else { SigSpec sig_tpl = w, sig_tpl_pf = w, sig_mod = it.second; - apply_prefix(cell->name.str(), sig_tpl_pf, module); + apply_prefix(cell->name, sig_tpl_pf, module); for (int i = 0; i < GetSize(sig_tpl) && i < GetSize(sig_mod); i++) { if (tpl_written_bits.count(tpl_sigmap(sig_tpl[i]))) { c.first.append(sig_mod[i]); @@ -319,8 +363,14 @@ struct TechmapWorker } for (auto &attr : w->attributes) { - if (attr.first == "\\src") + if (attr.first == ID(src)) continue; + auto lhs = GetSize(extra_connect.first); + auto rhs = GetSize(extra_connect.second); + if (lhs > rhs) + extra_connect.first.remove(rhs, lhs-rhs); + else if (rhs > lhs) + extra_connect.second.remove(lhs, rhs-lhs); module->connect(extra_connect); break; } @@ -329,41 +379,61 @@ struct TechmapWorker for (auto &it : tpl->cells_) { - std::string c_name = it.second->name.str(); - bool techmap_replace_cell = (!flatten_mode) && (c_name == "\\_TECHMAP_REPLACE_"); + IdString c_name = it.second->name.str(); + bool techmap_replace_cell = (!flatten_mode) && (c_name == ID(_TECHMAP_REPLACE_)); if (techmap_replace_cell) c_name = orig_cell_name; + else if (it.second->name.begins_with("\\_TECHMAP_REPLACE_.")) + c_name = stringf("%s%s", orig_cell_name.c_str(), c_name.c_str() + strlen("\\_TECHMAP_REPLACE_")); else - apply_prefix(cell->name.str(), c_name); + apply_prefix(cell->name, c_name); RTLIL::Cell *c = module->addCell(c_name, it.second); design->select(module, c); - c->set_src_attribute(cell->get_src_attribute()); - - if (!flatten_mode && c->type.substr(0, 2) == "\\$") + if (!flatten_mode && c->type.begins_with("\\$")) c->type = c->type.substr(1); - for (auto &it2 : c->connections_) { - apply_prefix(cell->name.str(), it2.second, module); - port_signal_map.apply(it2.second); + vector<IdString> autopurge_ports; + + for (auto &it2 : c->connections_) + { + bool autopurge = false; + if (!autopurge_tpl_bits.empty()) { + autopurge = GetSize(it2.second) != 0; + for (auto &bit : sigmaps.at(tpl)(it2.second)) + if (!autopurge_tpl_bits.count(bit)) { + autopurge = false; + break; + } + } + + if (autopurge) { + autopurge_ports.push_back(it2.first); + } else { + apply_prefix(cell->name, it2.second, module); + port_signal_map.apply(it2.second); + } } - if (c->type == "$memrd" || c->type == "$memwr" || c->type == "$meminit") { - IdString memid = c->getParam("\\MEMID").decode_string(); + for (auto &it2 : autopurge_ports) + c->unsetPort(it2); + + if (c->type.in(ID($memrd), ID($memwr), ID($meminit))) { + IdString memid = c->getParam(ID(MEMID)).decode_string(); log_assert(memory_renames.count(memid) != 0); - c->setParam("\\MEMID", Const(memory_renames[memid].str())); + c->setParam(ID(MEMID), Const(memory_renames[memid].str())); } - if (c->type == "$mem") { - string memid = c->getParam("\\MEMID").decode_string(); - apply_prefix(cell->name.str(), memid); - c->setParam("\\MEMID", Const(memid)); + if (c->type == ID($mem)) { + IdString memid = c->getParam(ID(MEMID)).decode_string(); + apply_prefix(cell->name, memid); + c->setParam(ID(MEMID), Const(memid.c_str())); } - if (c->attributes.count("\\src")) - c->add_strpool_attribute("\\src", extra_src_attrs); + if (c->attributes.count(ID(src))) + c->add_strpool_attribute(ID(src), extra_src_attrs); if (techmap_replace_cell) for (auto attr : cell->attributes) @@ -381,6 +451,16 @@ struct TechmapWorker } module->remove(cell); + + for (auto &it : temp_renamed_wires) + { + Wire *w = it.first; + IdString name = it.second; + IdString altname = module->uniquify(name); + Wire *other_w = module->wire(name); + module->rename(other_w, altname); + module->rename(w, name); + } } bool techmap_module(RTLIL::Design *design, RTLIL::Module *module, RTLIL::Design *map, std::set<RTLIL::Cell*> &handled_cells, @@ -388,14 +468,27 @@ struct TechmapWorker { std::string mapmsg_prefix = in_recursion ? "Recursively mapping" : "Mapping"; - if (!design->selected(module)) + if (!design->selected(module) || module->get_blackbox_attribute(ignore_wb)) return false; bool log_continue = false; bool did_something = false; + LogMakeDebugHdl mkdebug; SigMap sigmap(module); + dict<SigBit, State> init_bits; + pool<SigBit> remove_init_bits; + + for (auto wire : module->wires()) { + if (wire->attributes.count("\\init")) { + Const value = wire->attributes.at("\\init"); + for (int i = 0; i < min(GetSize(value), GetSize(wire)); i++) + if (value[i] != State::Sx) + init_bits[sigmap(SigBit(wire, i))] = value[i]; + } + } + TopoSort<RTLIL::Cell*, RTLIL::IdString::compare_ptr_by_name<RTLIL::Cell>> cells; std::map<RTLIL::Cell*, std::set<RTLIL::SigBit>> cell_to_inbit; std::map<RTLIL::SigBit, std::set<RTLIL::Cell*>> outbit_to_cell; @@ -406,7 +499,7 @@ struct TechmapWorker continue; std::string cell_type = cell->type.str(); - if (in_recursion && cell_type.substr(0, 2) == "\\$") + if (in_recursion && cell->type.begins_with("\\$")) cell_type = cell_type.substr(1); if (celltypeMap.count(cell_type) == 0) { @@ -416,9 +509,9 @@ struct TechmapWorker } if (flatten_mode) { - bool keepit = cell->get_bool_attribute("\\keep_hierarchy"); + bool keepit = cell->get_bool_attribute(ID(keep_hierarchy)); for (auto &tpl_name : celltypeMap.at(cell_type)) - if (map->modules_[tpl_name]->get_bool_attribute("\\keep_hierarchy")) + if (map->modules_[tpl_name]->get_bool_attribute(ID(keep_hierarchy))) keepit = true; if (keepit) { if (!flatten_keep_list[cell]) { @@ -468,7 +561,7 @@ struct TechmapWorker std::string cell_type = cell->type.str(); - if (in_recursion && cell_type.substr(0, 2) == "\\$") + if (in_recursion && cell->type.begins_with("\\$")) cell_type = cell_type.substr(1); for (auto &tpl_name : celltypeMap.at(cell_type)) @@ -477,20 +570,20 @@ struct TechmapWorker RTLIL::Module *tpl = map->modules_[tpl_name]; std::map<RTLIL::IdString, RTLIL::Const> parameters(cell->parameters.begin(), cell->parameters.end()); - if (tpl->get_bool_attribute("\\blackbox")) + if (tpl->get_blackbox_attribute(ignore_wb)) continue; if (!flatten_mode) { std::string extmapper_name; - if (tpl->get_bool_attribute("\\techmap_simplemap")) + if (tpl->get_bool_attribute(ID(techmap_simplemap))) extmapper_name = "simplemap"; - if (tpl->get_bool_attribute("\\techmap_maccmap")) + if (tpl->get_bool_attribute(ID(techmap_maccmap))) extmapper_name = "maccmap"; - if (tpl->attributes.count("\\techmap_wrap")) + if (tpl->attributes.count(ID(techmap_wrap))) extmapper_name = "wrap"; if (!extmapper_name.empty()) @@ -505,7 +598,7 @@ struct TechmapWorker m_name += stringf(":%s=%s", log_id(c.first), log_signal(c.second)); if (extmapper_name == "wrap") - m_name += ":" + sha1(tpl->attributes.at("\\techmap_wrap").decode_string()); + m_name += ":" + sha1(tpl->attributes.at(ID(techmap_wrap)).decode_string()); RTLIL::Design *extmapper_design = extern_mode && !in_recursion ? design : tpl->design; RTLIL::Module *extmapper_module = extmapper_design->module(m_name); @@ -520,7 +613,7 @@ struct TechmapWorker int port_counter = 1; for (auto &c : extmapper_cell->connections_) { RTLIL::Wire *w = extmapper_module->addWire(c.first, GetSize(c.second)); - if (w->name == "\\Y" || w->name == "\\Q") + if (w->name.in(ID::Y, ID(Q))) w->port_output = true; else w->port_input = true; @@ -541,15 +634,16 @@ struct TechmapWorker if (extmapper_name == "maccmap") { log("Creating %s with maccmap.\n", log_id(extmapper_module)); - if (extmapper_cell->type != "$macc") + if (extmapper_cell->type != ID($macc)) log_error("The maccmap mapper can only map $macc (not %s) cells!\n", log_id(extmapper_cell->type)); maccmap(extmapper_module, extmapper_cell); extmapper_module->remove(extmapper_cell); } if (extmapper_name == "wrap") { - std::string cmd_string = tpl->attributes.at("\\techmap_wrap").decode_string(); + std::string cmd_string = tpl->attributes.at(ID(techmap_wrap)).decode_string(); log("Running \"%s\" on wrapper %s.\n", cmd_string.c_str(), log_id(extmapper_module)); + mkdebug.on(); Pass::call_on_module(extmapper_design, extmapper_module, cmd_string); log_continue = true; } @@ -563,11 +657,21 @@ struct TechmapWorker goto use_wrapper_tpl; } - log("%s %s.%s (%s) to %s.\n", mapmsg_prefix.c_str(), log_id(module), log_id(cell), log_id(cell->type), log_id(extmapper_module)); + auto msg = stringf("Using extmapper %s for cells of type %s.", log_id(extmapper_module), log_id(cell->type)); + if (!log_msg_cache.count(msg)) { + log_msg_cache.insert(msg); + log("%s\n", msg.c_str()); + } + log_debug("%s %s.%s (%s) to %s.\n", mapmsg_prefix.c_str(), log_id(module), log_id(cell), log_id(cell->type), log_id(extmapper_module)); } else { - log("%s %s.%s (%s) with %s.\n", mapmsg_prefix.c_str(), log_id(module), log_id(cell), log_id(cell->type), extmapper_name.c_str()); + auto msg = stringf("Using extmapper %s for cells of type %s.", extmapper_name.c_str(), log_id(cell->type)); + if (!log_msg_cache.count(msg)) { + log_msg_cache.insert(msg); + log("%s\n", msg.c_str()); + } + log_debug("%s %s.%s (%s) with %s.\n", mapmsg_prefix.c_str(), log_id(module), log_id(cell), log_id(cell->type), extmapper_name.c_str()); if (extmapper_name == "simplemap") { if (simplemap_mappers.count(cell->type) == 0) @@ -576,7 +680,7 @@ struct TechmapWorker } if (extmapper_name == "maccmap") { - if (cell->type != "$macc") + if (cell->type != ID($macc)) log_error("The maccmap mapper can only map $macc (not %s) cells!\n", log_id(cell->type)); maccmap(module, cell); } @@ -591,7 +695,7 @@ struct TechmapWorker } for (auto conn : cell->connections()) { - if (conn.first.substr(0, 1) == "$") + if (conn.first.begins_with("$")) continue; if (tpl->wires_.count(conn.first) > 0 && tpl->wires_.at(conn.first)->port_id > 0) continue; @@ -605,8 +709,8 @@ struct TechmapWorker continue; } - if (tpl->avail_parameters.count("\\_TECHMAP_CELLTYPE_") != 0) - parameters["\\_TECHMAP_CELLTYPE_"] = RTLIL::unescape_id(cell->type); + if (tpl->avail_parameters.count(ID(_TECHMAP_CELLTYPE_)) != 0) + parameters[ID(_TECHMAP_CELLTYPE_)] = RTLIL::unescape_id(cell->type); for (auto conn : cell->connections()) { if (tpl->avail_parameters.count(stringf("\\_TECHMAP_CONSTMSK_%s_", RTLIL::id2cstr(conn.first))) != 0) { @@ -622,6 +726,17 @@ struct TechmapWorker bit = RTLIL::SigBit(RTLIL::State::Sx); parameters[stringf("\\_TECHMAP_CONSTVAL_%s_", RTLIL::id2cstr(conn.first))] = RTLIL::SigSpec(v).as_const(); } + if (tpl->avail_parameters.count(stringf("\\_TECHMAP_WIREINIT_%s_", RTLIL::id2cstr(conn.first))) != 0) { + auto sig = sigmap(conn.second); + RTLIL::Const value(State::Sx, sig.size()); + for (int i = 0; i < sig.size(); i++) { + auto it = init_bits.find(sig[i]); + if (it != init_bits.end()) { + value[i] = it->second; + } + } + parameters[stringf("\\_TECHMAP_WIREINIT_%s_", RTLIL::id2cstr(conn.first))] = value; + } } int unique_bit_id_counter = 0; @@ -638,12 +753,15 @@ struct TechmapWorker unique_bit_id[bit] = unique_bit_id_counter++; } + // Find highest bit set int bits = 0; for (int i = 0; i < 32; i++) if (((unique_bit_id_counter-1) & (1 << i)) != 0) bits = i; - if (tpl->avail_parameters.count("\\_TECHMAP_BITS_CONNMAP_")) - parameters["\\_TECHMAP_BITS_CONNMAP_"] = bits; + // Increment index by one to get number of bits + bits++; + if (tpl->avail_parameters.count(ID(_TECHMAP_BITS_CONNMAP_))) + parameters[ID(_TECHMAP_BITS_CONNMAP_)] = bits; for (auto conn : cell->connections()) if (tpl->avail_parameters.count(stringf("\\_TECHMAP_CONNMAP_%s_", RTLIL::id2cstr(conn.first))) != 0) { @@ -665,6 +783,7 @@ struct TechmapWorker tpl = techmap_cache[key]; } else { if (parameters.size() != 0) { + mkdebug.on(); derived_name = tpl->derive(map, dict<RTLIL::IdString, RTLIL::Const>(parameters.begin(), parameters.end())); tpl = map->module(derived_name); log_continue = true; @@ -710,7 +829,7 @@ struct TechmapWorker for (auto &it : twd) { - if (it.first.substr(0, 12) != "_TECHMAP_DO_" || it.second.empty()) + if (it.first.compare(0, 12, "_TECHMAP_DO_") != 0 || it.second.empty()) continue; auto &data = it.second.front(); @@ -818,7 +937,7 @@ struct TechmapWorker TechmapWires twd = techmap_find_special_wires(tpl); for (auto &it : twd) { - if (it.first != "_TECHMAP_FAIL_" && it.first.substr(0, 12) != "_TECHMAP_DO_" && it.first.substr(0, 14) != "_TECHMAP_DONE_") + if (it.first != "_TECHMAP_FAIL_" && (it.first.substr(0, 20) != "_TECHMAP_REMOVEINIT_" || it.first[it.first.size()-1] != '_') && it.first.substr(0, 12) != "_TECHMAP_DO_" && it.first.substr(0, 14) != "_TECHMAP_DONE_") log_error("Techmap yielded unknown config wire %s.\n", it.first.c_str()); if (techmap_do_cache[tpl]) for (auto &it2 : it.second) @@ -834,6 +953,7 @@ struct TechmapWorker if (log_continue) { log_header(design, "Continuing TECHMAP pass.\n"); log_continue = false; + mkdebug.off(); } while (techmap_module(map, tpl, map, handled_cells, celltypeMap, true)) { } } @@ -845,6 +965,24 @@ struct TechmapWorker if (log_continue) { log_header(design, "Continuing TECHMAP pass.\n"); log_continue = false; + mkdebug.off(); + } + + TechmapWires twd = techmap_find_special_wires(tpl); + for (auto &it : twd) { + if (it.first.substr(0, 20) == "_TECHMAP_REMOVEINIT_") { + for (auto &it2 : it.second) { + auto val = it2.value.as_const(); + auto wirename = RTLIL::escape_id(it.first.substr(20, it.first.size() - 20 - 1)); + auto it = cell->connections().find(wirename); + if (it != cell->connections().end()) { + auto sig = sigmap(it->second); + for (int i = 0; i < sig.size(); i++) + if (val[i] == State::S1) + remove_init_bits.insert(sig[i]); + } + } + } } if (extern_mode && !in_recursion) @@ -857,20 +995,25 @@ struct TechmapWorker tpl->cloneInto(m); for (auto cell : m->cells()) { - if (cell->type.substr(0, 2) == "\\$") + if (cell->type.begins_with("\\$")) cell->type = cell->type.substr(1); } module_queue.insert(m); } - log("%s %s.%s to imported %s.\n", mapmsg_prefix.c_str(), log_id(module), log_id(cell), log_id(m_name)); + log_debug("%s %s.%s to imported %s.\n", mapmsg_prefix.c_str(), log_id(module), log_id(cell), log_id(m_name)); cell->type = m_name; cell->parameters.clear(); } else { - log("%s %s.%s using %s.\n", mapmsg_prefix.c_str(), log_id(module), log_id(cell), log_id(tpl)); + auto msg = stringf("Using template %s for cells of type %s.", log_id(tpl), log_id(cell->type)); + if (!log_msg_cache.count(msg)) { + log_msg_cache.insert(msg); + log("%s\n", msg.c_str()); + } + log_debug("%s %s.%s (%s) using %s.\n", mapmsg_prefix.c_str(), log_id(module), log_id(cell), log_id(cell->type), log_id(tpl)); techmap_module_worker(design, module, cell, tpl); cell = NULL; } @@ -885,9 +1028,29 @@ struct TechmapWorker handled_cells.insert(cell); } + if (!remove_init_bits.empty()) { + for (auto wire : module->wires()) + if (wire->attributes.count("\\init")) { + Const &value = wire->attributes.at("\\init"); + bool do_cleanup = true; + for (int i = 0; i < min(GetSize(value), GetSize(wire)); i++) { + SigBit bit = sigmap(SigBit(wire, i)); + if (remove_init_bits.count(bit)) + value[i] = State::Sx; + else if (value[i] != State::Sx) + do_cleanup = false; + } + if (do_cleanup) { + log("Removing init attribute from wire %s.%s.\n", log_id(module), log_id(wire)); + wire->attributes.erase("\\init"); + } + } + } + if (log_continue) { log_header(design, "Continuing TECHMAP pass.\n"); log_continue = false; + mkdebug.off(); } return did_something; @@ -896,7 +1059,7 @@ struct TechmapWorker struct TechmapPass : public Pass { TechmapPass() : Pass("techmap", "generic technology mapper") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -920,7 +1083,8 @@ struct TechmapPass : public Pass { log(" instead of inlining them.\n"); log("\n"); log(" -max_iter <number>\n"); - log(" only run the specified number of iterations.\n"); + log(" only run the specified number of iterations on each module.\n"); + log(" default: unlimited\n"); log("\n"); log(" -recursive\n"); log(" instead of the iterative breadth-first algorithm use a recursive\n"); @@ -930,6 +1094,9 @@ struct TechmapPass : public Pass { log(" -autoproc\n"); log(" Automatically call \"proc\" on implementations that contain processes.\n"); log("\n"); + log(" -wb\n"); + log(" Ignore the 'whitebox' attribute on cell implementations.\n"); + log("\n"); log(" -assert\n"); log(" this option will cause techmap to exit with an error if it can't map\n"); log(" a selected cell. only cell types that end on an underscore are accepted\n"); @@ -938,7 +1105,7 @@ struct TechmapPass : public Pass { log(" -D <define>, -I <incdir>\n"); log(" this options are passed as-is to the Verilog frontend for loading the\n"); log(" map file. Note that the Verilog frontend is also called with the\n"); - log(" '-ignore_redef' option set.\n"); + log(" '-nooverwrite' option set.\n"); log("\n"); log("When a module in the map file has the 'techmap_celltype' attribute set, it will\n"); log("match cells with a type that match the text value of this attribute. Otherwise\n"); @@ -954,6 +1121,11 @@ struct TechmapPass : public Pass { log("will create a wrapper for the cell and then run the command string that the\n"); log("attribute is set to on the wrapper module.\n"); log("\n"); + log("When a port on a module in the map file has the 'techmap_autopurge' attribute\n"); + log("set, and that port is not connected in the instantiation that is mapped, then\n"); + log("then a cell port connected only to such wires will be omitted in the mapped\n"); + log("version of the circuit.\n"); + log("\n"); log("All wires in the modules from the map file matching the pattern _TECHMAP_*\n"); log("or *._TECHMAP_* are special wires that are used to pass instructions from\n"); log("the mapping module to the techmap command. At the moment the following special\n"); @@ -992,6 +1164,13 @@ struct TechmapPass : public Pass { log("\n"); log(" It is possible to combine both prefixes to 'RECURSION; CONSTMAP; '.\n"); log("\n"); + log(" _TECHMAP_REMOVEINIT_<port-name>_\n"); + log(" When this wire is set to a constant value, the init attribute of the wire(s)\n"); + log(" connected to this port will be consumed. This wire must have the same\n"); + log(" width as the given port, and for every bit that is set to 1 in the value,\n"); + log(" the corresponding init attribute bit will be changed to 1'bx. If all\n"); + log(" bits of an init attribute are left as x, it will be removed.\n"); + log("\n"); log("In addition to this special wires, techmap also supports special parameters in\n"); log("modules in the map file:\n"); log("\n"); @@ -1005,6 +1184,13 @@ struct TechmapPass : public Pass { log(" former has a 1-bit for each constant input bit and the latter has the\n"); log(" value for this bit. The unused bits of the latter are set to undef (x).\n"); log("\n"); + log(" _TECHMAP_WIREINIT_<port-name>_\n"); + log(" When a parameter with this name exists, it will be set to the initial\n"); + log(" value of the wire(s) connected to the given port, as specified by the init\n"); + log(" attribute. If the attribute doesn't exist, x will be filled for the\n"); + log(" missing bits. To remove the init attribute bits used, use the\n"); + log(" _TECHMAP_REMOVEINIT_*_ wires.\n"); + log("\n"); log(" _TECHMAP_BITS_CONNMAP_\n"); log(" _TECHMAP_CONNMAP_<port-name>_\n"); log(" For an N-bit port, the _TECHMAP_CONNMAP_<port-name>_ parameter, if it\n"); @@ -1020,6 +1206,12 @@ struct TechmapPass : public Pass { log("\n"); log("A cell with the name _TECHMAP_REPLACE_ in the map file will inherit the name\n"); log("and attributes of the cell that is being replaced.\n"); + log("A cell with a name of the form `_TECHMAP_REPLACE_.<suffix>` in the map file will\n"); + log("be named thus but with the `_TECHMAP_REPLACE_' prefix substituted with the name\n"); + log("of the cell being replaced.\n"); + log("Similarly, a wire named in the form `_TECHMAP_REPLACE_.<suffix>` will cause a\n"); + log("new wire alias to be created and named as above but with the `_TECHMAP_REPLACE_'\n"); + log("prefix also substituted.\n"); log("\n"); log("See 'help extract' for a pass that does the opposite thing.\n"); log("\n"); @@ -1027,7 +1219,7 @@ struct TechmapPass : public Pass { log("essentially techmap but using the design itself as map library).\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing TECHMAP pass (map to technology primitives).\n"); log_push(); @@ -1036,7 +1228,7 @@ struct TechmapPass : public Pass { simplemap_get_mappers(worker.simplemap_mappers); std::vector<std::string> map_files; - std::string verilog_frontend = "verilog -ignore_redef"; + std::string verilog_frontend = "verilog -nooverwrite -noblackbox"; int max_iter = -1; size_t argidx; @@ -1073,6 +1265,10 @@ struct TechmapPass : public Pass { worker.autoproc_mode = true; continue; } + if (args[argidx] == "-wb") { + worker.ignore_wb = true; + continue; + } break; } extra_args(args, argidx, design); @@ -1081,9 +1277,9 @@ struct TechmapPass : public Pass { if (map_files.empty()) { std::istringstream f(stdcells_code); Frontend::frontend_call(map, &f, "<techmap.v>", verilog_frontend); - } else + } else { for (auto &fn : map_files) - if (fn.substr(0, 1) == "%") { + if (fn.compare(0, 1, "%") == 0) { if (!saved_designs.count(fn.substr(1))) { delete map; log_cmd_error("Can't saved design `%s'.\n", fn.c_str()+1); @@ -1095,21 +1291,25 @@ struct TechmapPass : public Pass { std::ifstream f; rewrite_filename(fn); f.open(fn.c_str()); + yosys_input_files.insert(fn); if (f.fail()) log_cmd_error("Can't open map file `%s'\n", fn.c_str()); - Frontend::frontend_call(map, &f, fn, (fn.size() > 3 && fn.substr(fn.size()-3) == ".il") ? "ilang" : verilog_frontend); + Frontend::frontend_call(map, &f, fn, (fn.size() > 3 && fn.compare(fn.size()-3, std::string::npos, ".il") == 0 ? "ilang" : verilog_frontend)); } + } + + log_header(design, "Continuing TECHMAP pass.\n"); std::map<RTLIL::IdString, std::set<RTLIL::IdString, RTLIL::sort_by_id_str>> celltypeMap; for (auto &it : map->modules_) { - if (it.second->attributes.count("\\techmap_celltype") && !it.second->attributes.at("\\techmap_celltype").bits.empty()) { - char *p = strdup(it.second->attributes.at("\\techmap_celltype").decode_string().c_str()); + if (it.second->attributes.count(ID(techmap_celltype)) && !it.second->attributes.at(ID(techmap_celltype)).bits.empty()) { + char *p = strdup(it.second->attributes.at(ID(techmap_celltype)).decode_string().c_str()); for (char *q = strtok(p, " \t\r\n"); q; q = strtok(NULL, " \t\r\n")) celltypeMap[RTLIL::escape_id(q)].insert(it.first); free(p); } else { string module_name = it.first.str(); - if (module_name.substr(0, 2) == "\\$") + if (it.first.begins_with("\\$")) module_name = module_name.substr(1); celltypeMap[module_name].insert(it.first); } @@ -1123,15 +1323,16 @@ struct TechmapPass : public Pass { RTLIL::Module *module = *worker.module_queue.begin(); worker.module_queue.erase(module); + int module_max_iter = max_iter; bool did_something = true; std::set<RTLIL::Cell*> handled_cells; while (did_something) { did_something = false; - if (worker.techmap_module(design, module, map, handled_cells, celltypeMap, false)) - did_something = true; + if (worker.techmap_module(design, module, map, handled_cells, celltypeMap, false)) + did_something = true; if (did_something) module->check(); - if (max_iter > 0 && --max_iter == 0) + if (module_max_iter > 0 && --module_max_iter == 0) break; } } @@ -1145,11 +1346,11 @@ struct TechmapPass : public Pass { struct FlattenPass : public Pass { FlattenPass() : Pass("flatten", "flatten design") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); - log(" flatten [selection]\n"); + log(" flatten [options] [selection]\n"); log("\n"); log("This pass flattens the design by replacing cells by their implementation. This\n"); log("pass is very similar to the 'techmap' pass. The only difference is that this\n"); @@ -1158,17 +1359,29 @@ struct FlattenPass : public Pass { log("Cells and/or modules with the 'keep_hierarchy' attribute set will not be\n"); log("flattened by this command.\n"); log("\n"); + log(" -wb\n"); + log(" Ignore the 'whitebox' attribute on cell implementations.\n"); + log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { log_header(design, "Executing FLATTEN pass (flatten design).\n"); log_push(); - extra_args(args, 1, design); - TechmapWorker worker; worker.flatten_mode = true; + size_t argidx; + for (argidx = 1; argidx < args.size(); argidx++) { + if (args[argidx] == "-wb") { + worker.ignore_wb = true; + continue; + } + break; + } + extra_args(args, argidx, design); + + std::map<RTLIL::IdString, std::set<RTLIL::IdString, RTLIL::sort_by_id_str>> celltypeMap; for (auto module : design->modules()) celltypeMap[module->name].insert(module->name); @@ -1176,7 +1389,7 @@ struct FlattenPass : public Pass { RTLIL::Module *top_mod = NULL; if (design->full_selection()) for (auto mod : design->modules()) - if (mod->get_bool_attribute("\\top")) + if (mod->get_bool_attribute(ID(top))) top_mod = mod; std::set<RTLIL::Cell*> handled_cells; @@ -1194,6 +1407,7 @@ struct FlattenPass : public Pass { } } + log_suppressed(); log("No more expansions possible.\n"); if (top_mod != NULL) @@ -1213,7 +1427,7 @@ struct FlattenPass : public Pass { dict<RTLIL::IdString, RTLIL::Module*> new_modules; for (auto mod : vector<Module*>(design->modules())) - if (used_modules[mod->name] || mod->get_bool_attribute("\\blackbox")) { + if (used_modules[mod->name] || mod->get_blackbox_attribute(worker.ignore_wb)) { new_modules[mod->name] = mod; } else { log("Deleting now unused module %s.\n", log_id(mod)); diff --git a/passes/techmap/tribuf.cc b/passes/techmap/tribuf.cc index 03629082c..decf9a202 100644 --- a/passes/techmap/tribuf.cc +++ b/passes/techmap/tribuf.cc @@ -63,38 +63,40 @@ struct TribufWorker { for (auto cell : module->selected_cells()) { - if (cell->type == "$tribuf") - tribuf_cells[sigmap(cell->getPort("\\Y"))].push_back(cell); + if (cell->type == ID($tribuf)) + tribuf_cells[sigmap(cell->getPort(ID::Y))].push_back(cell); - if (cell->type == "$_TBUF_") - tribuf_cells[sigmap(cell->getPort("\\Y"))].push_back(cell); + if (cell->type == ID($_TBUF_)) + tribuf_cells[sigmap(cell->getPort(ID::Y))].push_back(cell); - if (cell->type.in("$mux", "$_MUX_")) + if (cell->type.in(ID($mux), ID($_MUX_))) { - IdString en_port = cell->type == "$mux" ? "\\EN" : "\\E"; - IdString tri_type = cell->type == "$mux" ? "$tribuf" : "$_TBUF_"; + IdString en_port = cell->type == ID($mux) ? ID(EN) : ID(E); + IdString tri_type = cell->type == ID($mux) ? ID($tribuf) : ID($_TBUF_); - if (is_all_z(cell->getPort("\\A")) && is_all_z(cell->getPort("\\B"))) { + if (is_all_z(cell->getPort(ID::A)) && is_all_z(cell->getPort(ID::B))) { module->remove(cell); continue; } - if (is_all_z(cell->getPort("\\A"))) { - cell->setPort("\\A", cell->getPort("\\B")); - cell->setPort(en_port, cell->getPort("\\S")); - cell->unsetPort("\\B"); - cell->unsetPort("\\S"); + if (is_all_z(cell->getPort(ID::A))) { + cell->setPort(ID::A, cell->getPort(ID::B)); + cell->setPort(en_port, cell->getPort(ID(S))); + cell->unsetPort(ID::B); + cell->unsetPort(ID(S)); cell->type = tri_type; - tribuf_cells[sigmap(cell->getPort("\\Y"))].push_back(cell); + tribuf_cells[sigmap(cell->getPort(ID::Y))].push_back(cell); + module->design->scratchpad_set_bool("tribuf.added_something", true); continue; } - if (is_all_z(cell->getPort("\\B"))) { - cell->setPort(en_port, module->Not(NEW_ID, cell->getPort("\\S"))); - cell->unsetPort("\\B"); - cell->unsetPort("\\S"); + if (is_all_z(cell->getPort(ID::B))) { + cell->setPort(en_port, module->Not(NEW_ID, cell->getPort(ID(S)))); + cell->unsetPort(ID::B); + cell->unsetPort(ID(S)); cell->type = tri_type; - tribuf_cells[sigmap(cell->getPort("\\Y"))].push_back(cell); + tribuf_cells[sigmap(cell->getPort(ID::Y))].push_back(cell); + module->design->scratchpad_set_bool("tribuf.added_something", true); continue; } } @@ -118,11 +120,11 @@ struct TribufWorker { SigSpec pmux_b, pmux_s; for (auto cell : it.second) { - if (cell->type == "$tribuf") - pmux_s.append(cell->getPort("\\EN")); + if (cell->type == ID($tribuf)) + pmux_s.append(cell->getPort(ID(EN))); else - pmux_s.append(cell->getPort("\\E")); - pmux_b.append(cell->getPort("\\A")); + pmux_s.append(cell->getPort(ID(E))); + pmux_b.append(cell->getPort(ID::A)); module->remove(cell); } @@ -130,8 +132,10 @@ struct TribufWorker { if (no_tribuf) module->connect(it.first, muxout); - else + else { module->addTribuf(NEW_ID, muxout, module->ReduceOr(NEW_ID, pmux_s), it.first); + module->design->scratchpad_set_bool("tribuf.added_something", true); + } } } } @@ -139,7 +143,7 @@ struct TribufWorker { struct TribufPass : public Pass { TribufPass() : Pass("tribuf", "infer tri-state buffers") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -156,7 +160,7 @@ struct TribufPass : public Pass { log(" to non-tristate logic. this option implies -merge.\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { TribufConfig config; diff --git a/passes/techmap/zinit.cc b/passes/techmap/zinit.cc index a577e1235..ac3d4ed4a 100644 --- a/passes/techmap/zinit.cc +++ b/passes/techmap/zinit.cc @@ -25,7 +25,7 @@ PRIVATE_NAMESPACE_BEGIN struct ZinitPass : public Pass { ZinitPass() : Pass("zinit", "add inverters so all FF are zero-initialized") { } - virtual void help() + void help() YS_OVERRIDE { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -37,7 +37,7 @@ struct ZinitPass : public Pass { log(" also add zero initialization to uninitialized FFs\n"); log("\n"); } - virtual void execute(std::vector<std::string> args, RTLIL::Design *design) + void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { bool all_mode = false; @@ -46,7 +46,7 @@ struct ZinitPass : public Pass { size_t argidx; for (argidx = 1; argidx < args.size(); argidx++) { - if (args[argidx] == "-singleton") { + if (args[argidx] == "-all") { all_mode = true; continue; } @@ -62,12 +62,12 @@ struct ZinitPass : public Pass { for (auto wire : module->selected_wires()) { - if (wire->attributes.count("\\init") == 0) + if (wire->attributes.count(ID(init)) == 0) continue; SigSpec wirebits = sigmap(wire); - Const initval = wire->attributes.at("\\init"); - wire->attributes.erase("\\init"); + Const initval = wire->attributes.at(ID(init)); + wire->attributes.erase(ID(init)); for (int i = 0; i < GetSize(wirebits) && i < GetSize(initval); i++) { @@ -90,12 +90,12 @@ struct ZinitPass : public Pass { } pool<IdString> dff_types = { - "$ff", "$dff", "$dffe", "$dffsr", "$adff", - "$_FF_", "$_DFFE_NN_", "$_DFFE_NP_", "$_DFFE_PN_", "$_DFFE_PP_", - "$_DFFSR_NNN_", "$_DFFSR_NNP_", "$_DFFSR_NPN_", "$_DFFSR_NPP_", - "$_DFFSR_PNN_", "$_DFFSR_PNP_", "$_DFFSR_PPN_", "$_DFFSR_PPP_", - "$_DFF_N_", "$_DFF_NN0_", "$_DFF_NN1_", "$_DFF_NP0_", "$_DFF_NP1_", - "$_DFF_P_", "$_DFF_PN0_", "$_DFF_PN1_", "$_DFF_PP0_", "$_DFF_PP1_" + ID($ff), ID($dff), ID($dffe), ID($dffsr), ID($adff), + ID($_FF_), ID($_DFFE_NN_), ID($_DFFE_NP_), ID($_DFFE_PN_), ID($_DFFE_PP_), + ID($_DFFSR_NNN_), ID($_DFFSR_NNP_), ID($_DFFSR_NPN_), ID($_DFFSR_NPP_), + ID($_DFFSR_PNN_), ID($_DFFSR_PNP_), ID($_DFFSR_PPN_), ID($_DFFSR_PPP_), + ID($_DFF_N_), ID($_DFF_NN0_), ID($_DFF_NN1_), ID($_DFF_NP0_), ID($_DFF_NP1_), + ID($_DFF_P_), ID($_DFF_PN0_), ID($_DFF_PN1_), ID($_DFF_PP0_), ID($_DFF_PP1_) }; for (auto cell : module->selected_cells()) @@ -103,8 +103,8 @@ struct ZinitPass : public Pass { if (!dff_types.count(cell->type)) continue; - SigSpec sig_d = sigmap(cell->getPort("\\D")); - SigSpec sig_q = sigmap(cell->getPort("\\Q")); + SigSpec sig_d = sigmap(cell->getPort(ID(D))); + SigSpec sig_q = sigmap(cell->getPort(ID(Q))); if (GetSize(sig_d) < 1 || GetSize(sig_q) < 1) continue; @@ -120,14 +120,14 @@ struct ZinitPass : public Pass { } Wire *initwire = module->addWire(NEW_ID, GetSize(initval)); - initwire->attributes["\\init"] = initval; + initwire->attributes[ID(init)] = initval; for (int i = 0; i < GetSize(initwire); i++) if (initval.bits.at(i) == State::S1) { sig_d[i] = module->NotGate(NEW_ID, sig_d[i]); module->addNotGate(NEW_ID, SigSpec(initwire, i), sig_q[i]); - initwire->attributes["\\init"].bits.at(i) = State::S0; + initwire->attributes[ID(init)].bits.at(i) = State::S0; } else { @@ -137,8 +137,8 @@ struct ZinitPass : public Pass { log("FF init value for cell %s (%s): %s = %s\n", log_id(cell), log_id(cell->type), log_signal(sig_q), log_signal(initval)); - cell->setPort("\\D", sig_d); - cell->setPort("\\Q", initwire); + cell->setPort(ID(D), sig_d); + cell->setPort(ID(Q), initwire); } for (auto &it : initbits) |