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authorEddie Hung <eddie@fpgeh.com>2019-11-22 15:38:48 -0800
committerEddie Hung <eddie@fpgeh.com>2019-11-22 15:38:48 -0800
commitbd56161775f47a474aaf5153d2273b86dad4f6f4 (patch)
treef4f8bc875eb0cebec0919e997a73b6b3afc36564 /frontends
parent8ef241c6f4a976dca67760c43e820d4e812f2fc2 (diff)
parent450ad0e9ba031fbeef904746ca773e3b0e21af8f (diff)
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Merge branch 'eddie/clkpart' into xaig_dff
Diffstat (limited to 'frontends')
-rw-r--r--frontends/verific/verific.cc17
-rw-r--r--frontends/verific/verific.h2
-rw-r--r--frontends/verific/verificsva.cc42
-rw-r--r--frontends/verilog/verilog_lexer.l6
-rw-r--r--frontends/verilog/verilog_parser.y39
5 files changed, 88 insertions, 18 deletions
diff --git a/frontends/verific/verific.cc b/frontends/verific/verific.cc
index a5c4aa26a..843e7b9b4 100644
--- a/frontends/verific/verific.cc
+++ b/frontends/verific/verific.cc
@@ -130,7 +130,7 @@ RTLIL::SigBit VerificImporter::net_map_at(Net *net)
bool is_blackbox(Netlist *nl)
{
- if (nl->IsBlackBox())
+ if (nl->IsBlackBox() || nl->IsEmptyBox())
return true;
const char *attr = nl->GetAttValue("blackbox");
@@ -784,15 +784,15 @@ void VerificImporter::merge_past_ffs(pool<RTLIL::Cell*> &candidates)
merge_past_ffs_clock(it.second, it.first.first, it.first.second);
}
-void VerificImporter::import_netlist(RTLIL::Design *design, Netlist *nl, std::set<Netlist*> &nl_todo)
+void VerificImporter::import_netlist(RTLIL::Design *design, Netlist *nl, std::set<Netlist*> &nl_todo, bool norename)
{
std::string netlist_name = nl->GetAtt(" \\top") ? nl->CellBaseName() : nl->Owner()->Name();
std::string module_name = netlist_name;
- if (nl->IsOperator()) {
+ if (nl->IsOperator() || nl->IsPrimitive()) {
module_name = "$verific$" + module_name;
} else {
- if (*nl->Name()) {
+ if (!norename && *nl->Name()) {
module_name += "(";
module_name += nl->Name();
module_name += ")";
@@ -1409,7 +1409,7 @@ void VerificImporter::import_netlist(RTLIL::Design *design, Netlist *nl, std::se
std::string inst_type = inst->View()->Owner()->Name();
- if (inst->View()->IsOperator()) {
+ if (inst->View()->IsOperator() || inst->View()->IsPrimitive()) {
inst_type = "$verific$" + inst_type;
} else {
if (*inst->View()->Name()) {
@@ -1899,7 +1899,7 @@ void verific_import(Design *design, const std::map<std::string,std::string> &par
Netlist *nl = *nl_todo.begin();
if (nl_done.count(nl) == 0) {
VerificImporter importer(false, false, false, false, false, false, false);
- importer.import_netlist(design, nl, nl_todo);
+ importer.import_netlist(design, nl, nl_todo, nl->Owner()->Name() == top);
}
nl_todo.erase(nl);
nl_done.insert(nl);
@@ -2373,6 +2373,8 @@ struct VerificPass : public Pass {
if (argidx > GetSize(args) && args[argidx].compare(0, 1, "-") == 0)
cmd_error(args, argidx, "unknown option");
+ std::set<std::string> top_mod_names;
+
if (mode_all)
{
log("Running hier_tree::ElaborateAll().\n");
@@ -2401,6 +2403,7 @@ struct VerificPass : public Pass {
for (; argidx < GetSize(args); argidx++)
{
const char *name = args[argidx].c_str();
+ top_mod_names.insert(name);
VeriLibrary* veri_lib = veri_file::GetLibrary(work.c_str(), 1);
if (veri_lib) {
@@ -2466,7 +2469,7 @@ struct VerificPass : public Pass {
if (nl_done.count(nl) == 0) {
VerificImporter importer(mode_gates, mode_keep, mode_nosva,
mode_names, mode_verific, mode_autocover, mode_fullinit);
- importer.import_netlist(design, nl, nl_todo);
+ importer.import_netlist(design, nl, nl_todo, top_mod_names.count(nl->Owner()->Name()));
}
nl_todo.erase(nl);
nl_done.insert(nl);
diff --git a/frontends/verific/verific.h b/frontends/verific/verific.h
index 5cbd78f7b..2ccfcd42c 100644
--- a/frontends/verific/verific.h
+++ b/frontends/verific/verific.h
@@ -93,7 +93,7 @@ struct VerificImporter
void merge_past_ffs_clock(pool<RTLIL::Cell*> &candidates, SigBit clock, bool clock_pol);
void merge_past_ffs(pool<RTLIL::Cell*> &candidates);
- void import_netlist(RTLIL::Design *design, Verific::Netlist *nl, std::set<Verific::Netlist*> &nl_todo);
+ void import_netlist(RTLIL::Design *design, Verific::Netlist *nl, std::set<Verific::Netlist*> &nl_todo, bool norename = false);
};
void verific_import_sva_assert(VerificImporter *importer, Verific::Instance *inst);
diff --git a/frontends/verific/verificsva.cc b/frontends/verific/verificsva.cc
index 909e9b4f1..49c0c40ac 100644
--- a/frontends/verific/verificsva.cc
+++ b/frontends/verific/verificsva.cc
@@ -36,6 +36,8 @@
// basic_property:
// sequence
// not basic_property
+// nexttime basic_property
+// nexttime[N] basic_property
// sequence #-# basic_property
// sequence #=# basic_property
// basic_property or basic_property (cover only)
@@ -1264,6 +1266,26 @@ struct VerificSvaImporter
return node;
}
+ if (inst->Type() == PRIM_SVA_NEXTTIME || inst->Type() == PRIM_SVA_S_NEXTTIME)
+ {
+ const char *sva_low_s = inst->GetAttValue("sva:low");
+ const char *sva_high_s = inst->GetAttValue("sva:high");
+
+ int sva_low = atoi(sva_low_s);
+ int sva_high = atoi(sva_high_s);
+ log_assert(sva_low == sva_high);
+
+ int node = start_node;
+
+ for (int i = 0; i < sva_low; i++) {
+ int next_node = fsm.createNode();
+ fsm.createEdge(node, next_node);
+ node = next_node;
+ }
+
+ return parse_sequence(fsm, node, inst->GetInput());
+ }
+
if (inst->Type() == PRIM_SVA_SEQ_CONCAT)
{
const char *sva_low_s = inst->GetAttValue("sva:low");
@@ -1590,15 +1612,25 @@ struct VerificSvaImporter
Instance *consequent_inst = net_to_ast_driver(consequent_net);
if (consequent_inst && (consequent_inst->Type() == PRIM_SVA_UNTIL || consequent_inst->Type() == PRIM_SVA_S_UNTIL ||
- consequent_inst->Type() == PRIM_SVA_UNTIL_WITH || consequent_inst->Type() == PRIM_SVA_S_UNTIL_WITH))
+ consequent_inst->Type() == PRIM_SVA_UNTIL_WITH || consequent_inst->Type() == PRIM_SVA_S_UNTIL_WITH ||
+ consequent_inst->Type() == PRIM_SVA_ALWAYS || consequent_inst->Type() == PRIM_SVA_S_ALWAYS))
{
bool until_with = consequent_inst->Type() == PRIM_SVA_UNTIL_WITH || consequent_inst->Type() == PRIM_SVA_S_UNTIL_WITH;
- Net *until_net = consequent_inst->GetInput2();
- consequent_net = consequent_inst->GetInput1();
- consequent_inst = net_to_ast_driver(consequent_net);
+ Net *until_net = nullptr;
+ if (consequent_inst->Type() == PRIM_SVA_ALWAYS || consequent_inst->Type() == PRIM_SVA_S_ALWAYS)
+ {
+ consequent_net = consequent_inst->GetInput();
+ consequent_inst = net_to_ast_driver(consequent_net);
+ }
+ else
+ {
+ until_net = consequent_inst->GetInput2();
+ consequent_net = consequent_inst->GetInput1();
+ consequent_inst = net_to_ast_driver(consequent_net);
+ }
- SigBit until_sig = parse_expression(until_net);
+ SigBit until_sig = until_net ? parse_expression(until_net) : RTLIL::S0;
SigBit not_until_sig = module->Not(NEW_ID, until_sig);
antecedent_fsm.createEdge(node, node, not_until_sig);
diff --git a/frontends/verilog/verilog_lexer.l b/frontends/verilog/verilog_lexer.l
index 4acfb414d..c8984c2c4 100644
--- a/frontends/verilog/verilog_lexer.l
+++ b/frontends/verilog/verilog_lexer.l
@@ -188,9 +188,9 @@ YOSYS_NAMESPACE_END
"unique0" { SV_KEYWORD(TOK_UNIQUE); }
"priority" { SV_KEYWORD(TOK_PRIORITY); }
-"always_comb" { SV_KEYWORD(TOK_ALWAYS); }
-"always_ff" { SV_KEYWORD(TOK_ALWAYS); }
-"always_latch" { SV_KEYWORD(TOK_ALWAYS); }
+"always_comb" { SV_KEYWORD(TOK_ALWAYS_COMB); }
+"always_ff" { SV_KEYWORD(TOK_ALWAYS_FF); }
+"always_latch" { SV_KEYWORD(TOK_ALWAYS_LATCH); }
/* use special token for labels on assert, assume, cover, and restrict because it's insanley complex
to fix parsing of cells otherwise. (the current cell parser forces a reduce very early to update some
diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y
index 77f6d2051..daea3b43a 100644
--- a/frontends/verilog/verilog_parser.y
+++ b/frontends/verilog/verilog_parser.y
@@ -141,6 +141,7 @@ struct specify_rise_fall {
%token TOK_INTERFACE TOK_ENDINTERFACE TOK_MODPORT TOK_VAR
%token TOK_INPUT TOK_OUTPUT TOK_INOUT TOK_WIRE TOK_WAND TOK_WOR TOK_REG TOK_LOGIC
%token TOK_INTEGER TOK_SIGNED TOK_ASSIGN TOK_ALWAYS TOK_INITIAL
+%token TOK_ALWAYS_FF TOK_ALWAYS_COMB TOK_ALWAYS_LATCH
%token TOK_BEGIN TOK_END TOK_IF TOK_ELSE TOK_FOR TOK_WHILE TOK_REPEAT
%token TOK_DPI_FUNCTION TOK_POSEDGE TOK_NEGEDGE TOK_OR TOK_AUTOMATIC
%token TOK_CASE TOK_CASEX TOK_CASEZ TOK_ENDCASE TOK_DEFAULT
@@ -156,7 +157,7 @@ struct specify_rise_fall {
%type <ast> range range_or_multirange non_opt_range non_opt_multirange range_or_signed_int
%type <ast> wire_type expr basic_expr concat_list rvalue lvalue lvalue_concat_list
%type <string> opt_label opt_sva_label tok_prim_wrapper hierarchical_id hierarchical_type_id
-%type <boolean> opt_signed opt_property unique_case_attr
+%type <boolean> opt_signed opt_property unique_case_attr always_comb_or_latch always_or_always_ff
%type <al> attr case_attr
%type <specify_target_ptr> specify_target
@@ -1581,10 +1582,28 @@ cell_port:
free_attr($1);
};
+always_comb_or_latch:
+ TOK_ALWAYS_COMB {
+ $$ = false;
+ } |
+ TOK_ALWAYS_LATCH {
+ $$ = true;
+ };
+
+always_or_always_ff:
+ TOK_ALWAYS {
+ $$ = false;
+ } |
+ TOK_ALWAYS_FF {
+ $$ = true;
+ };
+
always_stmt:
- attr TOK_ALWAYS {
+ attr always_or_always_ff {
AstNode *node = new AstNode(AST_ALWAYS);
append_attr(node, $1);
+ if ($2)
+ node->attributes[ID(always_ff)] = AstNode::mkconst_int(1, false);
ast_stack.back()->children.push_back(node);
ast_stack.push_back(node);
} always_cond {
@@ -1595,6 +1614,22 @@ always_stmt:
ast_stack.pop_back();
ast_stack.pop_back();
} |
+ attr always_comb_or_latch {
+ AstNode *node = new AstNode(AST_ALWAYS);
+ append_attr(node, $1);
+ if ($2)
+ node->attributes[ID(always_latch)] = AstNode::mkconst_int(1, false);
+ else
+ node->attributes[ID(always_comb)] = AstNode::mkconst_int(1, false);
+ ast_stack.back()->children.push_back(node);
+ ast_stack.push_back(node);
+ AstNode *block = new AstNode(AST_BLOCK);
+ ast_stack.back()->children.push_back(block);
+ ast_stack.push_back(block);
+ } behavioral_stmt {
+ ast_stack.pop_back();
+ ast_stack.pop_back();
+ } |
attr TOK_INITIAL {
AstNode *node = new AstNode(AST_INITIAL);
append_attr(node, $1);
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-03 21:10:11 +0000