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Add initial support for solo binsof (#8298)

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This commit is contained in:
Marco Bartoli
2026-09-06 19:51:31 -04:00
committed by GitHub
parent bbbb9c3e7c
commit 9da900a5e2
17 changed files with 663 additions and 293 deletions
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src/V3LinkParse.cpp
+34 -5
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@@ -1415,14 +1415,43 @@ class LinkParseVisitor final : public VNVisitor {
iterateChildren(nodep);
}
void visit(AstCoverBinsof* nodep) override {
cleanFileline(nodep);
AstCoverpointRef* const refp = nodep->pointp();
const AstParseRef* pointp = VN_CAST(refp->exprp(), ParseRef);
const AstParseRef* binp = nullptr;
const AstDot* const dotp = VN_CAST(refp->exprp(), Dot);
if (dotp) {
pointp = VN_CAST(dotp->lhsp(), ParseRef);
binp = VN_CAST(dotp->rhsp(), ParseRef);
}
if (!pointp || (dotp && !binp)) {
nodep->v3warn(COVERIGN, "Unsupported: 'binsof' in coverage select expression");
VL_DO_DANGLING(pushDeletep(nodep->unlinkFrBack()), nodep);
return;
}
// These names belong to the coverage namespace, not the sampled variables.
if (binp) nodep->name(binp->name());
refp->replaceWith(new AstCoverpointRef{pointp->fileline(), pointp->name()});
VL_DO_DANGLING(pushDeletep(refp), refp);
iterateChildren(nodep);
}
void visit(AstCoverCrossBin* nodep) override {
cleanFileline(nodep);
iterateChildren(nodep);
if (!nodep->selectp()) {
nodep->v3warn(COVERIGN, "Unsupported: explicit coverage cross bins");
VL_DO_DANGLING(pushDeletep(nodep->unlinkFrBack()), nodep);
}
}
void visit(AstCoverCross* nodep) override {
cleanFileline(nodep);
// Distribute the parse-time raw cross_body list (rawBodyp, op3) into the
// typed optionsp slot. The grammar produces AstCgOptionAssign nodes for
// option.* items; convert them to AstCoverOption exactly as visit(AstCoverpoint*)
// does. Other items (functions, unsupported bin selectors) are discarded.
for (AstNode *itemp = nodep->rawBodyp(), *nextp; itemp; itemp = nextp) {
// Move options out of the mixed parse-time body, leaving only cross bins.
for (AstNode *itemp = nodep->binsp(), *nextp; itemp; itemp = nextp) {
nextp = itemp->nextp();
if (VN_IS(itemp, CoverCrossBin)) continue;
itemp->unlinkFrBack();
AstCgOptionAssign* const optp = VN_AS(itemp, CgOptionAssign);
const VCoverOptionType optType = optp->optType();