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-rw-r--r--passes/abc/abc.cc655
1 files changed, 460 insertions, 195 deletions
diff --git a/passes/abc/abc.cc b/passes/abc/abc.cc
index 5aa13572e..f1d56b23a 100644
--- a/passes/abc/abc.cc
+++ b/passes/abc/abc.cc
@@ -29,65 +29,88 @@
// Kahn, Arthur B. (1962), "Topological sorting of large networks", Communications of the ACM 5 (11): 558–562, doi:10.1145/368996.369025
// http://en.wikipedia.org/wiki/Topological_sorting
-#define ABC_COMMAND_LIB "strash; retime; balance; dch; map; topo"
-#define ABC_COMMAND_CTR "strash; retime; balance; dch; map; topo; buffer; upsize; dnsize; stime"
-#define ABC_COMMAND_LUT "strash; retime; balance; dch; if"
-#define ABC_COMMAND_DFL "strash; retime; balance; dch; map"
+#define ABC_COMMAND_LIB "strash; scorr -v; ifraig -v; retime -v {D}; strash; dch -vf; map -v {D}"
+#define ABC_COMMAND_CTR "strash; scorr -v; ifraig -v; retime -v {D}; strash; dch -vf; map -v {D}; buffer -v; upsize -v {D}; dnsize -v {D}; stime -p"
+#define ABC_COMMAND_LUT "strash; scorr -v; ifraig -v; retime -v; strash; dch -vf; if -v"
+#define ABC_COMMAND_DFL "strash; scorr -v; ifraig -v; retime -v; strash; dch -vf; map -v"
+
+#define ABC_FAST_COMMAND_LIB "retime -v {D}; map -v {D}"
+#define ABC_FAST_COMMAND_CTR "retime -v {D}; map -v {D}; buffer -v; upsize -v {D}; dnsize -v {D}; stime -p"
+#define ABC_FAST_COMMAND_LUT "retime -v; if -v"
+#define ABC_FAST_COMMAND_DFL "retime -v; map -v"
#include "kernel/register.h"
#include "kernel/sigtools.h"
#include "kernel/log.h"
#include <unistd.h>
#include <stdlib.h>
-#include <assert.h>
#include <stdio.h>
#include <string.h>
#include <dirent.h>
+#include <cerrno>
#include <sstream>
+#include <climits>
#include "blifparse.h"
+enum class gate_type_t {
+ G_NONE,
+ G_FF,
+ G_NOT,
+ G_AND,
+ G_NAND,
+ G_OR,
+ G_NOR,
+ G_XOR,
+ G_XNOR,
+ G_MUX,
+ G_AOI3,
+ G_OAI3,
+ G_AOI4,
+ G_OAI4
+};
+
+#define G(_name) gate_type_t::G_ ## _name
+
struct gate_t
{
int id;
- char type;
- int in1, in2, in3;
+ gate_type_t type;
+ int in1, in2, in3, in4;
bool is_port;
- RTLIL::SigSpec sig;
+ RTLIL::SigBit bit;
};
static int map_autoidx;
static SigMap assign_map;
static RTLIL::Module *module;
static std::vector<gate_t> signal_list;
-static std::map<RTLIL::SigSpec, int> signal_map;
+static std::map<RTLIL::SigBit, int> signal_map;
static bool clk_polarity;
static RTLIL::SigSpec clk_sig;
-static int map_signal(RTLIL::SigSpec sig, char gate_type = -1, int in1 = -1, int in2 = -1, int in3 = -1)
+static int map_signal(RTLIL::SigBit bit, gate_type_t gate_type = G(NONE), int in1 = -1, int in2 = -1, int in3 = -1, int in4 = -1)
{
- assert(sig.width == 1);
- assert(sig.chunks.size() == 1);
+ assign_map.apply(bit);
- assign_map.apply(sig);
-
- if (signal_map.count(sig) == 0) {
+ if (signal_map.count(bit) == 0) {
gate_t gate;
gate.id = signal_list.size();
- gate.type = -1;
+ gate.type = G(NONE);
gate.in1 = -1;
gate.in2 = -1;
gate.in3 = -1;
+ gate.in4 = -1;
gate.is_port = false;
- gate.sig = sig;
+ gate.bit = bit;
signal_list.push_back(gate);
- signal_map[sig] = gate.id;
+ signal_map[bit] = gate.id;
}
- gate_t &gate = signal_list[signal_map[sig]];
+ gate_t &gate = signal_list[signal_map[bit]];
- if (gate_type >= 0)
+ if (gate_type != G(NONE))
gate.type = gate_type;
if (in1 >= 0)
gate.in1 = in1;
@@ -95,62 +118,64 @@ static int map_signal(RTLIL::SigSpec sig, char gate_type = -1, int in1 = -1, int
gate.in2 = in2;
if (in3 >= 0)
gate.in3 = in3;
+ if (in4 >= 0)
+ gate.in4 = in4;
return gate.id;
}
static void mark_port(RTLIL::SigSpec sig)
{
- assign_map.apply(sig);
- sig.expand();
- for (auto &c : sig.chunks) {
- if (c.wire != NULL && signal_map.count(c) > 0)
- signal_list[signal_map[c]].is_port = true;
- }
+ for (auto &bit : assign_map(sig))
+ if (bit.wire != NULL && signal_map.count(bit) > 0)
+ signal_list[signal_map[bit]].is_port = true;
}
-static void extract_cell(RTLIL::Cell *cell)
+static void extract_cell(RTLIL::Cell *cell, bool keepff)
{
if (cell->type == "$_DFF_N_" || cell->type == "$_DFF_P_")
{
if (clk_polarity != (cell->type == "$_DFF_P_"))
return;
- if (clk_sig != assign_map(cell->connections["\\C"]))
+ if (clk_sig != assign_map(cell->getPort("\\C")))
return;
- RTLIL::SigSpec sig_d = cell->connections["\\D"];
- RTLIL::SigSpec sig_q = cell->connections["\\Q"];
+ RTLIL::SigSpec sig_d = cell->getPort("\\D");
+ RTLIL::SigSpec sig_q = cell->getPort("\\Q");
+
+ if (keepff)
+ for (auto &c : sig_q.chunks())
+ if (c.wire != NULL)
+ c.wire->attributes["\\keep"] = 1;
assign_map.apply(sig_d);
assign_map.apply(sig_q);
- map_signal(sig_q, 'f', map_signal(sig_d));
+ map_signal(sig_q, G(FF), map_signal(sig_d));
- module->cells.erase(cell->name);
- delete cell;
+ module->remove(cell);
return;
}
- if (cell->type == "$_INV_")
+ if (cell->type == "$_NOT_")
{
- RTLIL::SigSpec sig_a = cell->connections["\\A"];
- RTLIL::SigSpec sig_y = cell->connections["\\Y"];
+ RTLIL::SigSpec sig_a = cell->getPort("\\A");
+ RTLIL::SigSpec sig_y = cell->getPort("\\Y");
assign_map.apply(sig_a);
assign_map.apply(sig_y);
- map_signal(sig_y, 'n', map_signal(sig_a));
+ map_signal(sig_y, G(NOT), map_signal(sig_a));
- module->cells.erase(cell->name);
- delete cell;
+ module->remove(cell);
return;
}
- if (cell->type == "$_AND_" || cell->type == "$_OR_" || cell->type == "$_XOR_")
+ if (cell->type.in("$_AND_", "$_NAND_", "$_OR_", "$_NOR_", "$_XOR_", "$_XNOR_"))
{
- RTLIL::SigSpec sig_a = cell->connections["\\A"];
- RTLIL::SigSpec sig_b = cell->connections["\\B"];
- RTLIL::SigSpec sig_y = cell->connections["\\Y"];
+ RTLIL::SigSpec sig_a = cell->getPort("\\A");
+ RTLIL::SigSpec sig_b = cell->getPort("\\B");
+ RTLIL::SigSpec sig_y = cell->getPort("\\Y");
assign_map.apply(sig_a);
assign_map.apply(sig_b);
@@ -160,25 +185,30 @@ static void extract_cell(RTLIL::Cell *cell)
int mapped_b = map_signal(sig_b);
if (cell->type == "$_AND_")
- map_signal(sig_y, 'a', mapped_a, mapped_b);
+ map_signal(sig_y, G(AND), mapped_a, mapped_b);
+ else if (cell->type == "$_NAND_")
+ map_signal(sig_y, G(NAND), mapped_a, mapped_b);
else if (cell->type == "$_OR_")
- map_signal(sig_y, 'o', mapped_a, mapped_b);
+ map_signal(sig_y, G(OR), mapped_a, mapped_b);
+ else if (cell->type == "$_NOR_")
+ map_signal(sig_y, G(NOR), mapped_a, mapped_b);
else if (cell->type == "$_XOR_")
- map_signal(sig_y, 'x', mapped_a, mapped_b);
+ map_signal(sig_y, G(XOR), mapped_a, mapped_b);
+ else if (cell->type == "$_XNOR_")
+ map_signal(sig_y, G(XNOR), mapped_a, mapped_b);
else
log_abort();
- module->cells.erase(cell->name);
- delete cell;
+ module->remove(cell);
return;
}
if (cell->type == "$_MUX_")
{
- RTLIL::SigSpec sig_a = cell->connections["\\A"];
- RTLIL::SigSpec sig_b = cell->connections["\\B"];
- RTLIL::SigSpec sig_s = cell->connections["\\S"];
- RTLIL::SigSpec sig_y = cell->connections["\\Y"];
+ RTLIL::SigSpec sig_a = cell->getPort("\\A");
+ RTLIL::SigSpec sig_b = cell->getPort("\\B");
+ RTLIL::SigSpec sig_s = cell->getPort("\\S");
+ RTLIL::SigSpec sig_y = cell->getPort("\\Y");
assign_map.apply(sig_a);
assign_map.apply(sig_b);
@@ -189,15 +219,61 @@ static void extract_cell(RTLIL::Cell *cell)
int mapped_b = map_signal(sig_b);
int mapped_s = map_signal(sig_s);
- map_signal(sig_y, 'm', mapped_a, mapped_b, mapped_s);
+ map_signal(sig_y, G(MUX), mapped_a, mapped_b, mapped_s);
+
+ module->remove(cell);
+ return;
+ }
+
+ if (cell->type.in("$_AOI3_", "$_OAI3_"))
+ {
+ RTLIL::SigSpec sig_a = cell->getPort("\\A");
+ RTLIL::SigSpec sig_b = cell->getPort("\\B");
+ RTLIL::SigSpec sig_c = cell->getPort("\\C");
+ RTLIL::SigSpec sig_y = cell->getPort("\\Y");
+
+ assign_map.apply(sig_a);
+ assign_map.apply(sig_b);
+ assign_map.apply(sig_c);
+ assign_map.apply(sig_y);
+
+ int mapped_a = map_signal(sig_a);
+ int mapped_b = map_signal(sig_b);
+ int mapped_c = map_signal(sig_c);
+
+ map_signal(sig_y, cell->type == "$_AOI3_" ? G(AOI3) : G(OAI3), mapped_a, mapped_b, mapped_c);
+
+ module->remove(cell);
+ return;
+ }
+
+ if (cell->type.in("$_AOI4_", "$_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");
+
+ assign_map.apply(sig_a);
+ assign_map.apply(sig_b);
+ assign_map.apply(sig_c);
+ assign_map.apply(sig_d);
+ assign_map.apply(sig_y);
+
+ int mapped_a = map_signal(sig_a);
+ int mapped_b = map_signal(sig_b);
+ int mapped_c = map_signal(sig_c);
+ int mapped_d = map_signal(sig_d);
+
+ map_signal(sig_y, cell->type == "$_AOI4_" ? G(AOI4) : G(OAI4), mapped_a, mapped_b, mapped_c, mapped_d);
- module->cells.erase(cell->name);
- delete cell;
+ module->remove(cell);
return;
}
}
-static std::string remap_name(std::string abc_name)
+static std::string remap_name(RTLIL::IdString abc_name)
{
std::stringstream sstr;
sstr << "$abc$" << map_autoidx << "$" << abc_name.substr(1);
@@ -211,8 +287,9 @@ static void dump_loop_graph(FILE *f, int &nr, std::map<int, std::set<int>> &edge
log("Dumping loop state graph to slide %d.\n", ++nr);
- fprintf(f, "digraph slide%d {\n", nr);
- fprintf(f, " rankdir=\"LR\";\n");
+ fprintf(f, "digraph \"slide%d\" {\n", nr);
+ fprintf(f, " label=\"slide%d\";\n", nr);
+ fprintf(f, " rankdir=\"TD\";\n");
std::set<int> nodes;
for (auto &e : edges) {
@@ -222,7 +299,7 @@ static void dump_loop_graph(FILE *f, int &nr, std::map<int, std::set<int>> &edge
}
for (auto n : nodes)
- fprintf(f, " n%d [label=\"%s\\nid=%d, count=%d\"%s];\n", n, log_signal(signal_list[n].sig),
+ fprintf(f, " 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)
@@ -248,7 +325,7 @@ static void handle_loops()
// dot_f = fopen("test.dot", "w");
for (auto &g : signal_list) {
- if (g.type == -1 || g.type == 'f') {
+ if (g.type == G(NONE) || g.type == G(FF)) {
workpool.insert(g.id);
} else {
if (g.in1 >= 0) {
@@ -263,6 +340,10 @@ static void handle_loops()
edges[g.in3].insert(g.id);
in_edges_count[g.id]++;
}
+ if (g.in4 >= 0 && g.in4 != g.in3 && g.in4 != g.in2 && g.in4 != g.in1) {
+ edges[g.in4].insert(g.id);
+ in_edges_count[g.id]++;
+ }
}
}
@@ -273,10 +354,10 @@ static void handle_loops()
int id = *workpool.begin();
workpool.erase(id);
- // log("Removing non-loop node %d from graph: %s\n", id, log_signal(signal_list[id].sig));
+ // log("Removing non-loop node %d from graph: %s\n", id, log_signal(signal_list[id].bit));
for (int id2 : edges[id]) {
- assert(in_edges_count[id2] > 0);
+ log_assert(in_edges_count[id2] > 0);
if (--in_edges_count[id2] == 0)
workpool.insert(id2);
}
@@ -293,12 +374,12 @@ static void handle_loops()
for (auto &edge_it : edges) {
int id2 = edge_it.first;
- RTLIL::Wire *w1 = signal_list[id1].sig.chunks[0].wire;
- RTLIL::Wire *w2 = signal_list[id2].sig.chunks[0].wire;
- if (w1 != NULL)
- continue;
- else if (w2 == NULL)
+ RTLIL::Wire *w1 = signal_list[id1].bit.wire;
+ RTLIL::Wire *w2 = signal_list[id2].bit.wire;
+ if (w1 == NULL)
id1 = id2;
+ else if (w2 == NULL)
+ continue;
else if (w1->name[0] == '$' && w2->name[0] == '\\')
id1 = id2;
else if (w1->name[0] == '\\' && w2->name[0] == '$')
@@ -307,7 +388,7 @@ static void handle_loops()
id1 = id2;
else if (edges[id1].size() > edges[id2].size())
continue;
- else if (w1->name > w2->name)
+ else if (w2->name.str() < w1->name.str())
id1 = id2;
}
@@ -316,27 +397,27 @@ static void handle_loops()
continue;
}
- RTLIL::Wire *wire = new RTLIL::Wire;
+ log_assert(signal_list[id1].bit.wire != NULL);
+
std::stringstream sstr;
- sstr << "$abcloop$" << (RTLIL::autoidx++);
- wire->name = sstr.str();
- module->wires[wire->name] = wire;
+ sstr << "$abcloop$" << (autoidx++);
+ RTLIL::Wire *wire = module->addWire(sstr.str());
bool first_line = true;
for (int id2 : edges[id1]) {
if (first_line)
log("Breaking loop using new signal %s: %s -> %s\n", log_signal(RTLIL::SigSpec(wire)),
- log_signal(signal_list[id1].sig), log_signal(signal_list[id2].sig));
+ log_signal(signal_list[id1].bit), log_signal(signal_list[id2].bit));
else
log(" %*s %s -> %s\n", int(strlen(log_signal(RTLIL::SigSpec(wire)))), "",
- log_signal(signal_list[id1].sig), log_signal(signal_list[id2].sig));
+ log_signal(signal_list[id1].bit), log_signal(signal_list[id2].bit));
first_line = false;
}
int id3 = map_signal(RTLIL::SigSpec(wire));
signal_list[id1].is_port = true;
signal_list[id3].is_port = true;
- assert(id3 == int(in_edges_count.size()));
+ log_assert(id3 == int(in_edges_count.size()));
in_edges_count.push_back(0);
workpool.insert(id3);
@@ -347,10 +428,12 @@ static void handle_loops()
signal_list[id2].in2 = id3;
if (signal_list[id2].in3 == id1)
signal_list[id2].in3 = id3;
+ if (signal_list[id2].in4 == id1)
+ signal_list[id2].in4 = id3;
}
edges[id1].swap(edges[id3]);
- module->connections.push_back(RTLIL::SigSig(signal_list[id3].sig, signal_list[id1].sig));
+ module->connect(RTLIL::SigSig(signal_list[id3].bit, signal_list[id1].bit));
dump_loop_graph(dot_f, dot_nr, edges, workpool, in_edges_count);
}
}
@@ -359,11 +442,55 @@ static void handle_loops()
fclose(dot_f);
}
+static std::string add_echos_to_abc_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++;
+ if (!new_str.empty())
+ new_str += "echo; ";
+ new_str += "echo + " + token + " " + token + " ";
+ token.clear();
+ }
+ }
+
+ if (!token.empty()) {
+ if (!new_str.empty())
+ new_str += "echo; echo + " + token + "; ";
+ new_str += token;
+ }
+
+ return new_str;
+}
+
+static std::string fold_abc_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;
+}
+
static 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, int lut_mode, bool dff_mode, std::string clk_str)
+ std::string liberty_file, std::string constr_file, bool cleanup, int lut_mode, bool dff_mode, std::string clk_str,
+ bool keepff, std::string delay_target, bool fast_mode)
{
module = current_module;
- map_autoidx = RTLIL::autoidx++;
+ map_autoidx = autoidx++;
signal_map.clear();
signal_list.clear();
@@ -393,33 +520,48 @@ static void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std
} else
abc_command = stringf("source %s", script_file.c_str());
} else if (lut_mode)
- abc_command = ABC_COMMAND_LUT;
+ abc_command = fast_mode ? ABC_FAST_COMMAND_LUT : ABC_COMMAND_LUT;
else if (!liberty_file.empty())
- abc_command = constr_file.empty() ? ABC_COMMAND_LIB : ABC_COMMAND_CTR;
+ abc_command = constr_file.empty() ? (fast_mode ? ABC_FAST_COMMAND_LIB : ABC_COMMAND_LIB) : (fast_mode ? ABC_FAST_COMMAND_CTR : ABC_COMMAND_CTR);
else
- abc_command = ABC_COMMAND_DFL;
+ abc_command = fast_mode ? ABC_FAST_COMMAND_DFL : ABC_COMMAND_DFL;
+
+ for (size_t pos = abc_command.find("{D}"); pos != std::string::npos; pos = abc_command.find("{D}", pos))
+ abc_command = abc_command.substr(0, pos) + delay_target + abc_command.substr(pos+3);
+
+ abc_command = add_echos_to_abc_cmd(abc_command);
+
+ if (abc_command.size() > 128) {
+ for (size_t i = 0; i+1 < abc_command.size(); i++)
+ if (abc_command[i] == ';' && abc_command[i+1] == ' ')
+ abc_command[i+1] = '\n';
+ FILE *f = fopen(stringf("%s/abc.script", tempdir_name).c_str(), "wt");
+ fprintf(f, "%s\n", abc_command.c_str());
+ fclose(f);
+ abc_command = stringf("source %s/abc.script", tempdir_name);
+ }
if (clk_str.empty()) {
if (clk_str[0] == '!') {
clk_polarity = false;
clk_str = clk_str.substr(1);
}
- if (module->wires.count(RTLIL::escape_id(clk_str)) != 0)
- clk_sig = assign_map(RTLIL::SigSpec(module->wires.at(RTLIL::escape_id(clk_str)), 1));
+ if (module->wires_.count(RTLIL::escape_id(clk_str)) != 0)
+ clk_sig = assign_map(RTLIL::SigSpec(module->wires_.at(RTLIL::escape_id(clk_str)), 0));
}
- if (dff_mode && clk_sig.width == 0)
+ if (dff_mode && clk_sig.size() == 0)
{
int best_dff_counter = 0;
std::map<std::pair<bool, RTLIL::SigSpec>, int> dff_counters;
- for (auto &it : module->cells)
+ for (auto &it : module->cells_)
{
RTLIL::Cell *cell = it.second;
if (cell->type != "$_DFF_N_" && cell->type != "$_DFF_P_")
continue;
- std::pair<bool, RTLIL::SigSpec> key(cell->type == "$_DFF_P_", assign_map(cell->connections.at("\\C")));
+ std::pair<bool, RTLIL::SigSpec> key(cell->type == "$_DFF_P_", assign_map(cell->getPort("\\C")));
if (++dff_counters[key] > best_dff_counter) {
best_dff_counter = dff_counters[key];
clk_polarity = key.first;
@@ -429,30 +571,30 @@ static void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std
}
if (dff_mode || !clk_str.empty()) {
- if (clk_sig.width == 0)
+ if (clk_sig.size() == 0)
log("No (matching) clock domain found. Not extracting any FF cells.\n");
else
log("Found (matching) %s clock domain: %s\n", clk_polarity ? "posedge" : "negedge", log_signal(clk_sig));
}
- if (clk_sig.width != 0)
+ if (clk_sig.size() != 0)
mark_port(clk_sig);
std::vector<RTLIL::Cell*> cells;
- cells.reserve(module->cells.size());
- for (auto &it : module->cells)
+ cells.reserve(module->cells_.size());
+ for (auto &it : module->cells_)
if (design->selected(current_module, it.second))
cells.push_back(it.second);
for (auto c : cells)
- extract_cell(c);
+ extract_cell(c, keepff);
- for (auto &wire_it : module->wires) {
+ for (auto &wire_it : module->wires_) {
if (wire_it.second->port_id > 0 || wire_it.second->get_bool_attribute("\\keep"))
mark_port(RTLIL::SigSpec(wire_it.second));
}
- for (auto &cell_it : module->cells)
- for (auto &port_it : cell_it.second->connections)
+ for (auto &cell_it : module->cells_)
+ for (auto &port_it : cell_it.second->connections())
mark_port(port_it.second);
handle_loops();
@@ -468,17 +610,19 @@ static void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std
int count_input = 0;
fprintf(f, ".inputs");
for (auto &si : signal_list) {
- if (!si.is_port || si.type >= 0)
+ if (!si.is_port || si.type != G(NONE))
continue;
fprintf(f, " n%d", si.id);
count_input++;
}
+ if (count_input == 0)
+ fprintf(f, " dummy_input\n");
fprintf(f, "\n");
int count_output = 0;
fprintf(f, ".outputs");
for (auto &si : signal_list) {
- if (!si.is_port || si.type < 0)
+ if (!si.is_port || si.type == G(NONE))
continue;
fprintf(f, " n%d", si.id);
count_output++;
@@ -486,42 +630,70 @@ static void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std
fprintf(f, "\n");
for (auto &si : signal_list)
- fprintf(f, "# n%-5d %s\n", si.id, log_signal(si.sig));
+ fprintf(f, "# n%-5d %s\n", si.id, log_signal(si.bit));
for (auto &si : signal_list) {
- assert(si.sig.width == 1 && si.sig.chunks.size() == 1);
- if (si.sig.chunks[0].wire == NULL) {
+ if (si.bit.wire == NULL) {
fprintf(f, ".names n%d\n", si.id);
- if (si.sig.chunks[0].data.bits[0] == RTLIL::State::S1)
+ if (si.bit == RTLIL::State::S1)
fprintf(f, "1\n");
}
}
int count_gates = 0;
for (auto &si : signal_list) {
- if (si.type == 'n') {
+ if (si.type == G(NOT)) {
fprintf(f, ".names n%d n%d\n", si.in1, si.id);
fprintf(f, "0 1\n");
- } else if (si.type == 'a') {
+ } else if (si.type == G(AND)) {
fprintf(f, ".names n%d n%d n%d\n", si.in1, si.in2, si.id);
fprintf(f, "11 1\n");
- } else if (si.type == 'o') {
+ } else if (si.type == G(NAND)) {
+ fprintf(f, ".names n%d n%d 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, "-1 1\n");
fprintf(f, "1- 1\n");
- } else if (si.type == 'x') {
+ } else if (si.type == G(NOR)) {
+ fprintf(f, ".names n%d n%d 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, "01 1\n");
fprintf(f, "10 1\n");
- } else if (si.type == 'm') {
+ } else if (si.type == G(XNOR)) {
+ fprintf(f, ".names n%d n%d n%d\n", si.in1, si.in2, si.id);
+ fprintf(f, "00 1\n");
+ fprintf(f, "11 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, "1-0 1\n");
fprintf(f, "-11 1\n");
- } else if (si.type == 'f') {
+ } 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, "-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, "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, "-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, "00-- 1\n");
+ fprintf(f, "--00 1\n");
+ } else if (si.type == G(FF)) {
fprintf(f, ".latch n%d n%d\n", si.in1, si.id);
- } else if (si.type >= 0)
+ } else if (si.type != G(NONE))
log_abort();
- if (si.type >= 0)
+ if (si.type != G(NONE))
count_gates++;
}
@@ -543,11 +715,18 @@ static void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std
fprintf(f, "GATE ZERO 1 Y=CONST0;\n");
fprintf(f, "GATE ONE 1 Y=CONST1;\n");
fprintf(f, "GATE BUF 1 Y=A; PIN * NONINV 1 999 1 0 1 0\n");
- fprintf(f, "GATE INV 1 Y=!A; PIN * INV 1 999 1 0 1 0\n");
+ fprintf(f, "GATE NOT 1 Y=!A; PIN * INV 1 999 1 0 1 0\n");
fprintf(f, "GATE AND 1 Y=A*B; PIN * NONINV 1 999 1 0 1 0\n");
+ fprintf(f, "GATE NAND 1 Y=!(A*B); PIN * INV 1 999 1 0 1 0\n");
fprintf(f, "GATE OR 1 Y=A+B; PIN * NONINV 1 999 1 0 1 0\n");
+ fprintf(f, "GATE NOR 1 Y=!(A+B); PIN * INV 1 999 1 0 1 0\n");
fprintf(f, "GATE XOR 1 Y=(A*!B)+(!A*B); PIN * UNKNOWN 1 999 1 0 1 0\n");
+ fprintf(f, "GATE XNOR 1 Y=(A*B)+(!A*!B); PIN * UNKNOWN 1 999 1 0 1 0\n");
fprintf(f, "GATE MUX 1 Y=(A*B)+(S*B)+(!S*A); PIN * UNKNOWN 1 999 1 0 1 0\n");
+ fprintf(f, "GATE AOI3 1 Y=!((A*B)+C); PIN * INV 1 999 1 0 1 0\n");
+ fprintf(f, "GATE OAI3 1 Y=!((A+B)*C); PIN * INV 1 999 1 0 1 0\n");
+ fprintf(f, "GATE AOI4 1 Y=!((A*B)+(C*D)); PIN * INV 1 999 1 0 1 0\n");
+ fprintf(f, "GATE OAI4 1 Y=!((A+B)*(C+D)); PIN * INV 1 999 1 0 1 0\n");
fclose(f);
free(p);
@@ -564,10 +743,10 @@ static void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std
std::string buffer;
if (!liberty_file.empty()) {
- buffer += stringf("%s -s -c 'read_blif %s/input.blif; read_lib %s; ",
+ buffer += stringf("%s -s -c 'read_blif %s/input.blif; read_lib -w %s; ",
exe_file.c_str(), tempdir_name, liberty_file.c_str());
if (!constr_file.empty())
- buffer += stringf("read_constr %s; ", constr_file.c_str());
+ buffer += stringf("read_constr -v %s; ", constr_file.c_str());
buffer += abc_command + "; ";
} else
if (lut_mode)
@@ -578,13 +757,53 @@ static void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std
exe_file.c_str(), tempdir_name, tempdir_name, abc_command.c_str());
buffer += stringf("write_blif %s/output.blif' 2>&1", tempdir_name);
+ log("%s\n", buffer.c_str());
+
errno = ENOMEM; // popen does not set errno if memory allocation fails, therefore set it by hand
f = popen(buffer.c_str(), "r");
if (f == NULL)
log_error("Opening pipe to `%s' for reading failed: %s\n", buffer.c_str(), strerror(errno));
+#if 0
char logbuf[1024];
while (fgets(logbuf, 1024, f) != NULL)
log("ABC: %s", logbuf);
+#else
+ bool got_cr = false;
+ int escape_seq_state = 0;
+ std::string linebuf;
+ char logbuf[1024];
+ while (fgets(logbuf, 1024, f) != NULL)
+ for (char *p = logbuf; *p; p++) {
+ if (escape_seq_state == 0 && *p == '\033') {
+ escape_seq_state = 1;
+ continue;
+ }
+ if (escape_seq_state == 1) {
+ escape_seq_state = *p == '[' ? 2 : 0;
+ continue;
+ }
+ if (escape_seq_state == 2) {
+ if ((*p < '0' || '9' < *p) && *p != ';')
+ escape_seq_state = 0;
+ continue;
+ }
+ escape_seq_state = 0;
+ if (*p == '\r') {
+ got_cr = true;
+ continue;
+ }
+ if (*p == '\n') {
+ log("ABC: %s\n", linebuf.c_str());
+ got_cr = false, linebuf.clear();
+ continue;
+ }
+ if (got_cr)
+ got_cr = false, linebuf.clear();
+ linebuf += *p;
+ }
+ if (!linebuf.empty())
+ log("ABC: %s\n", linebuf.c_str());
+#endif
errno = 0;
int ret = pclose(f);
if (ret < 0)
@@ -609,79 +828,84 @@ static void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std
free(p);
log_header("Re-integrating ABC results.\n");
- RTLIL::Module *mapped_mod = mapped_design->modules["\\netlist"];
+ RTLIL::Module *mapped_mod = mapped_design->modules_["\\netlist"];
if (mapped_mod == NULL)
log_error("ABC output file does not contain a module `netlist'.\n");
- for (auto &it : mapped_mod->wires) {
+ for (auto &it : mapped_mod->wires_) {
RTLIL::Wire *w = it.second;
- RTLIL::Wire *wire = new RTLIL::Wire;
- wire->name = remap_name(w->name);
- module->wires[wire->name] = wire;
+ RTLIL::Wire *wire = module->addWire(remap_name(w->name));
design->select(module, wire);
}
std::map<std::string, int> cell_stats;
if (builtin_lib)
{
- for (auto &it : mapped_mod->cells) {
+ for (auto &it : mapped_mod->cells_) {
RTLIL::Cell *c = it.second;
cell_stats[RTLIL::unescape_id(c->type)]++;
if (c->type == "\\ZERO" || c->type == "\\ONE") {
RTLIL::SigSig conn;
- conn.first = RTLIL::SigSpec(module->wires[remap_name(c->connections["\\Y"].chunks[0].wire->name)]);
+ conn.first = RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Y").as_wire()->name)]);
conn.second = RTLIL::SigSpec(c->type == "\\ZERO" ? 0 : 1, 1);
- module->connections.push_back(conn);
+ module->connect(conn);
continue;
}
if (c->type == "\\BUF") {
RTLIL::SigSig conn;
- conn.first = RTLIL::SigSpec(module->wires[remap_name(c->connections["\\Y"].chunks[0].wire->name)]);
- conn.second = RTLIL::SigSpec(module->wires[remap_name(c->connections["\\A"].chunks[0].wire->name)]);
- module->connections.push_back(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)]);
+ module->connect(conn);
continue;
}
- if (c->type == "\\INV") {
- RTLIL::Cell *cell = new RTLIL::Cell;
- cell->type = "$_INV_";
- cell->name = remap_name(c->name);
- cell->connections["\\A"] = RTLIL::SigSpec(module->wires[remap_name(c->connections["\\A"].chunks[0].wire->name)]);
- cell->connections["\\Y"] = RTLIL::SigSpec(module->wires[remap_name(c->connections["\\Y"].chunks[0].wire->name)]);
- module->cells[cell->name] = cell;
+ if (c->type == "\\NOT") {
+ RTLIL::Cell *cell = module->addCell(remap_name(c->name), "$_NOT_");
+ 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)]));
design->select(module, cell);
continue;
}
- if (c->type == "\\AND" || c->type == "\\OR" || c->type == "\\XOR") {
- RTLIL::Cell *cell = new RTLIL::Cell;
- cell->type = "$_" + c->type.substr(1) + "_";
- cell->name = remap_name(c->name);
- cell->connections["\\A"] = RTLIL::SigSpec(module->wires[remap_name(c->connections["\\A"].chunks[0].wire->name)]);
- cell->connections["\\B"] = RTLIL::SigSpec(module->wires[remap_name(c->connections["\\B"].chunks[0].wire->name)]);
- cell->connections["\\Y"] = RTLIL::SigSpec(module->wires[remap_name(c->connections["\\Y"].chunks[0].wire->name)]);
- module->cells[cell->name] = cell;
+ if (c->type == "\\AND" || c->type == "\\OR" || c->type == "\\XOR" || c->type == "\\NAND" || c->type == "\\NOR" || c->type == "\\XNOR") {
+ RTLIL::Cell *cell = module->addCell(remap_name(c->name), "$_" + c->type.substr(1) + "_");
+ 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)]));
design->select(module, cell);
continue;
}
if (c->type == "\\MUX") {
- RTLIL::Cell *cell = new RTLIL::Cell;
- cell->type = "$_MUX_";
- cell->name = remap_name(c->name);
- cell->connections["\\A"] = RTLIL::SigSpec(module->wires[remap_name(c->connections["\\A"].chunks[0].wire->name)]);
- cell->connections["\\B"] = RTLIL::SigSpec(module->wires[remap_name(c->connections["\\B"].chunks[0].wire->name)]);
- cell->connections["\\S"] = RTLIL::SigSpec(module->wires[remap_name(c->connections["\\S"].chunks[0].wire->name)]);
- cell->connections["\\Y"] = RTLIL::SigSpec(module->wires[remap_name(c->connections["\\Y"].chunks[0].wire->name)]);
- module->cells[cell->name] = cell;
+ RTLIL::Cell *cell = module->addCell(remap_name(c->name), "$_MUX_");
+ 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)]));
+ design->select(module, cell);
+ continue;
+ }
+ if (c->type == "\\AOI3" || c->type == "\\OAI3") {
+ RTLIL::Cell *cell = module->addCell(remap_name(c->name), "$_" + c->type.substr(1) + "_");
+ cell->setPort("\\A", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\A").as_wire()->name)]));
+ cell->setPort("\\B", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\B").as_wire()->name)]));
+ cell->setPort("\\C", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\C").as_wire()->name)]));
+ cell->setPort("\\Y", RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Y").as_wire()->name)]));
+ design->select(module, cell);
+ continue;
+ }
+ if (c->type == "\\AOI4" || c->type == "\\OAI4") {
+ RTLIL::Cell *cell = module->addCell(remap_name(c->name), "$_" + c->type.substr(1) + "_");
+ 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)]));
design->select(module, cell);
continue;
}
if (c->type == "\\DFF") {
- log_assert(clk_sig.width == 1);
- RTLIL::Cell *cell = new RTLIL::Cell;
- cell->type = clk_polarity ? "$_DFF_P_" : "$_DFF_N_";
- cell->name = remap_name(c->name);
- cell->connections["\\D"] = RTLIL::SigSpec(module->wires[remap_name(c->connections["\\D"].chunks[0].wire->name)]);
- cell->connections["\\Q"] = RTLIL::SigSpec(module->wires[remap_name(c->connections["\\Q"].chunks[0].wire->name)]);
- cell->connections["\\C"] = clk_sig;
- module->cells[cell->name] = cell;
+ log_assert(clk_sig.size() == 1);
+ RTLIL::Cell *cell = module->addCell(remap_name(c->name), clk_polarity ? "$_DFF_P_" : "$_DFF_N_");
+ 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);
design->select(module, cell);
continue;
}
@@ -690,54 +914,48 @@ static void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std
}
else
{
- for (auto &it : mapped_mod->cells)
+ for (auto &it : mapped_mod->cells_)
{
RTLIL::Cell *c = it.second;
cell_stats[RTLIL::unescape_id(c->type)]++;
if (c->type == "\\_const0_" || c->type == "\\_const1_") {
RTLIL::SigSig conn;
- conn.first = RTLIL::SigSpec(module->wires[remap_name(c->connections.begin()->second.chunks[0].wire->name)]);
+ 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);
- module->connections.push_back(conn);
+ module->connect(conn);
continue;
}
if (c->type == "\\_dff_") {
- log_assert(clk_sig.width == 1);
- RTLIL::Cell *cell = new RTLIL::Cell;
- cell->type = clk_polarity ? "$_DFF_P_" : "$_DFF_N_";
- cell->name = remap_name(c->name);
- cell->connections["\\D"] = RTLIL::SigSpec(module->wires[remap_name(c->connections["\\D"].chunks[0].wire->name)]);
- cell->connections["\\Q"] = RTLIL::SigSpec(module->wires[remap_name(c->connections["\\Q"].chunks[0].wire->name)]);
- cell->connections["\\C"] = clk_sig;
- module->cells[cell->name] = cell;
+ log_assert(clk_sig.size() == 1);
+ RTLIL::Cell *cell = module->addCell(remap_name(c->name), clk_polarity ? "$_DFF_P_" : "$_DFF_N_");
+ 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);
design->select(module, cell);
continue;
}
- RTLIL::Cell *cell = new RTLIL::Cell;
- cell->type = c->type;
+ RTLIL::Cell *cell = module->addCell(remap_name(c->name), c->type);
cell->parameters = c->parameters;
- cell->name = remap_name(c->name);
- for (auto &conn : c->connections) {
+ for (auto &conn : c->connections()) {
RTLIL::SigSpec newsig;
- for (auto &c : conn.second.chunks) {
+ for (auto &c : conn.second.chunks()) {
if (c.width == 0)
continue;
- assert(c.width == 1);
- newsig.append(module->wires[remap_name(c.wire->name)]);
+ log_assert(c.width == 1);
+ newsig.append(module->wires_[remap_name(c.wire->name)]);
}
- cell->connections[conn.first] = newsig;
+ cell->setPort(conn.first, newsig);
}
- module->cells[cell->name] = cell;
design->select(module, cell);
}
}
- for (auto conn : mapped_mod->connections) {
+ for (auto conn : mapped_mod->connections()) {
if (!conn.first.is_fully_const())
- conn.first = RTLIL::SigSpec(module->wires[remap_name(conn.first.chunks[0].wire->name)]);
+ conn.first = RTLIL::SigSpec(module->wires_[remap_name(conn.first.as_wire()->name)]);
if (!conn.second.is_fully_const())
- conn.second = RTLIL::SigSpec(module->wires[remap_name(conn.second.chunks[0].wire->name)]);
- module->connections.push_back(conn);
+ conn.second = RTLIL::SigSpec(module->wires_[remap_name(conn.second.as_wire()->name)]);
+ module->connect(conn);
}
for (auto &it : cell_stats)
@@ -748,16 +966,16 @@ static void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std
char buffer[100];
snprintf(buffer, 100, "\\n%d", si.id);
RTLIL::SigSig conn;
- if (si.type >= 0) {
- conn.first = si.sig;
- conn.second = RTLIL::SigSpec(module->wires[remap_name(buffer)]);
+ if (si.type != G(NONE)) {
+ conn.first = si.bit;
+ conn.second = RTLIL::SigSpec(module->wires_[remap_name(buffer)]);
out_wires++;
} else {
- conn.first = RTLIL::SigSpec(module->wires[remap_name(buffer)]);
- conn.second = si.sig;
+ conn.first = RTLIL::SigSpec(module->wires_[remap_name(buffer)]);
+ conn.second = si.bit;
in_wires++;
}
- module->connections.push_back(conn);
+ module->connect(conn);
}
log("ABC RESULTS: internal signals: %8d\n", int(signal_list.size()) - in_wires - out_wires);
log("ABC RESULTS: input signals: %8d\n", in_wires);
@@ -776,7 +994,7 @@ static void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std
struct dirent **namelist;
int n = scandir(tempdir_name, &namelist, 0, alphasort);
- assert(n >= 0);
+ log_assert(n >= 0);
for (int i = 0; i < n; i++) {
if (strcmp(namelist[i]->d_name, ".") && strcmp(namelist[i]->d_name, "..")) {
if (asprintf(&p, "%s/%s", tempdir_name, namelist[i]->d_name) < 0) log_abort();
@@ -820,16 +1038,32 @@ struct AbcPass : public Pass {
log(" if no -script parameter is given, the following scripts are used:\n");
log("\n");
log(" for -liberty without -constr:\n");
- log(" %s\n", ABC_COMMAND_LIB);
+ log("%s\n", fold_abc_cmd(ABC_COMMAND_LIB).c_str());
+ log("\n");
+ log(" for -liberty with -constr:\n");
+ log("%s\n", fold_abc_cmd(ABC_COMMAND_CTR).c_str());
+ log("\n");
+ log(" for -lut:\n");
+ log("%s\n", fold_abc_cmd(ABC_COMMAND_LUT).c_str());
+ log("\n");
+ log(" otherwise:\n");
+ log("%s\n", fold_abc_cmd(ABC_COMMAND_DFL).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("\n");
+ log(" for -liberty without -constr:\n");
+ log("%s\n", fold_abc_cmd(ABC_FAST_COMMAND_LIB).c_str());
log("\n");
log(" for -liberty with -constr:\n");
- log(" %s\n", ABC_COMMAND_CTR);
+ log("%s\n", fold_abc_cmd(ABC_FAST_COMMAND_CTR).c_str());
log("\n");
log(" for -lut:\n");
- log(" %s\n", ABC_COMMAND_LUT);
+ log("%s\n", fold_abc_cmd(ABC_FAST_COMMAND_LUT).c_str());
log("\n");
log(" otherwise:\n");
- log(" %s\n", ABC_COMMAND_DFL);
+ log("%s\n", fold_abc_cmd(ABC_FAST_COMMAND_DFL).c_str());
log("\n");
log(" -liberty <file>\n");
log(" generate netlists for the specified cell library (using the liberty\n");
@@ -838,6 +1072,18 @@ struct AbcPass : public Pass {
log(" -constr <file>\n");
log(" pass this file with timing constraints to ABC. use with -liberty.\n");
log("\n");
+ log(" a constr file contains two lines:\n");
+ log(" set_driving_cell <cell_name>\n");
+ log(" set_load <floating_point_number>\n");
+ log("\n");
+ log(" the set_driving_cell statement defines which cell type is assumed to\n");
+ log(" drive the primary inputs and the set_load statement sets the load in\n");
+ log(" femtofarads for each primary output.\n");
+ 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("\n");
log(" -lut <width>\n");
log(" generate netlist using luts of (max) the specified width.\n");
log("\n");
@@ -851,6 +1097,10 @@ struct AbcPass : public Pass {
log(" with -dff, then it falls back to the automatic dection of clock domain\n");
log(" if the specified clock is not found in a module.)\n");
log("\n");
+ log(" -keepff\n");
+ log(" set the \"keep\" attribute on flip-flop output wires. (and thus preserve\n");
+ log(" them, for example for equivialence checking.)\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");
@@ -869,13 +1119,17 @@ struct AbcPass : public Pass {
log_header("Executing ABC pass (technology mapping using ABC).\n");
log_push();
- std::string exe_file = rewrite_yosys_exe("yosys-abc");
- std::string script_file, liberty_file, constr_file, clk_str;
- bool dff_mode = false, cleanup = true;
+ std::string exe_file = proc_self_dirname() + "yosys-abc";
+ std::string script_file, liberty_file, constr_file, clk_str, delay_target;
+ bool fast_mode = false, dff_mode = false, keepff = false, cleanup = true;
int lut_mode = 0;
size_t argidx;
- char *pwd = get_current_dir_name();
+ 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()) {
@@ -900,10 +1154,18 @@ struct AbcPass : public Pass {
constr_file = std::string(pwd) + "/" + constr_file;
continue;
}
+ if (arg == "-D" && argidx+1 < args.size()) {
+ delay_target = "-D " + args[++argidx];
+ continue;
+ }
if (arg == "-lut" && argidx+1 < args.size()) {
lut_mode = atoi(args[++argidx].c_str());
continue;
}
+ if (arg == "-fast") {
+ fast_mode = true;
+ continue;
+ }
if (arg == "-dff") {
dff_mode = true;
continue;
@@ -912,13 +1174,16 @@ struct AbcPass : public Pass {
clk_str = args[++argidx];
continue;
}
+ if (arg == "-keepff") {
+ keepff = true;
+ continue;
+ }
if (arg == "-nocleanup") {
cleanup = false;
continue;
}
break;
}
- free(pwd);
extra_args(args, argidx, design);
if (lut_mode != 0 && !liberty_file.empty())
@@ -926,12 +1191,12 @@ struct AbcPass : public Pass {
if (!constr_file.empty() && liberty_file.empty())
log_cmd_error("Got -constr but no -liberty!\n");
- for (auto &mod_it : design->modules)
+ for (auto &mod_it : design->modules_)
if (design->selected(mod_it.second)) {
if (mod_it.second->processes.size() > 0)
log("Skipping module %s as it contains processes.\n", mod_it.second->name.c_str());
else
- abc_module(design, mod_it.second, script_file, exe_file, liberty_file, constr_file, cleanup, lut_mode, dff_mode, clk_str);
+ abc_module(design, mod_it.second, script_file, exe_file, liberty_file, constr_file, cleanup, lut_mode, dff_mode, clk_str, keepff, delay_target, fast_mode);
}
assign_map.clear();