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Support covergroup extends, etc. (#6160)

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This commit is contained in:
Artur Bieniek
2025-07-15 09:31:08 -04:00
committed by GitHub
parent 371ac07c6f
commit f3e109d8c5
22 changed files with 400 additions and 37 deletions
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src/verilog.y
+34 -12
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@@ -6822,21 +6822,38 @@ covergroup_declaration<nodep>: // ==IEEE: covergroup_declaration
| covergroup_declarationFront '(' tf_port_listE ')'
/*cont*/ coverage_eventE ';' coverage_spec_or_optionListE
/*cont*/ yENDGROUP endLabelE
{ $$ = $1;
{ AstFunc* const newp = new AstFunc{$<fl>1, "new", nullptr, nullptr};
newp->classMethod(true);
newp->isConstructor(true);
newp->dtypep($1->dtypep());
newp->addStmtsp($3);
$1->addMembersp(newp);
$$ = $1;
GRAMMARP->endLabel($<fl>9, $1, $9); }
// // IEEE 1800-2023 added:
| covergroup_declarationFront yEXTENDS idAny/*covergroup_identifier*/
/*cont*/ ';' coverage_spec_or_optionListE
/*cont*/ yENDGROUP endLabelE
{ $$ = $1;
GRAMMARP->endLabel($<fl>7, $1, $7); }
;
covergroup_extendsE<fl>: // IEEE: Part of covergroup_declaration
/* empty */ { $$ = nullptr; }
| yEXTENDS { $$ = $1; }
;
covergroup_declarationFront<classp>: // IEEE: part of covergroup_declaration
yCOVERGROUP idAny
{ $$ = new AstClass{$<fl>2, *$2, PARSEP->libname()};
yCOVERGROUP covergroup_extendsE idAny
{
$$ = new AstClass{$<fl>3, *$3, PARSEP->libname()};
AstFunc* const sample = new AstFunc{$<fl>1, "sample", nullptr, nullptr};
sample->classMethod(true);
sample->dtypep(sample->findVoidDType());
$$->addMembersp(sample);
AstFunc* const getCoverage = new AstFunc{$<fl>1, "get_coverage", nullptr, nullptr};
getCoverage->classMethod(true);
getCoverage->dtypep(getCoverage->findVoidDType());
$$->addMembersp(getCoverage);
BBCOVERIGN($<fl>1, "Ignoring unsupported: covergroup"); }
;
;
cgexpr<nodeExprp>: // IEEE-2012: covergroup_expression, before that just expression
expr { $$ = $1; }
@@ -7006,7 +7023,7 @@ cross_itemList<nodep>: // IEEE: part of list_of_cross_items
;
cross_item<nodep>: // ==IEEE: cross_item
idAny/*cover_point_identifier or variable_identifier*/ { $$ = nullptr; /*UNSUP*/ }
idDotted/*cover_point_identifier or variable_identifier*/ { $1->deleteTree(); $$ = nullptr; /*UNSUP*/ }
;
cross_body<nodep>: // ==IEEE: cross_body
@@ -7552,7 +7569,12 @@ class_item<nodep>: // ==IEEE: class_item
| class_declaration { $$ = $1; }
| timeunits_declaration { $$ = $1; }
| covergroup_declaration
{ $$ = nullptr; BBCOVERIGN($1, "Ignoring unsupported: covergroup within class"); }
{
const string cgName = $1->name();
$1->name("__vlAnonCG_" + cgName);
AstVar* const newp = new AstVar{$<fl>1, VVarType::VAR, cgName, VFlagChildDType{}, new AstRefDType($<fl>1, $1->name())};
$$ = addNextNull($1, newp);
}
// // local_parameter_declaration under parameter_declaration
| parameter_declaration ';' { $$ = $1; }
| ';' { $$ = nullptr; }