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Support covergroups, coverpoints, and bins (#784) (#7117)

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Fixes #784.
This commit is contained in:
Matthew Ballance
2026-06-05 09:35:01 -04:00
committed by GitHub
parent 7e2fe64ae2
commit 2886291eba
163 changed files with 7575 additions and 1123 deletions
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src/V3Timing.cpp
+18 -6
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@@ -343,11 +343,15 @@ class TimingSuspendableVisitor final : public VNVisitor {
}
}
void visit(AstNodeCCall* nodep) override {
new V3GraphEdge{&m_suspGraph, getSuspendDepVtx(nodep->funcp()), getSuspendDepVtx(m_procp),
P_CALL};
AstCFunc* const funcp = nodep->funcp();
UASSERT_OBJ(funcp, nodep, "AstNodeCCall must have non-null funcp post-link");
UASSERT_OBJ(m_procp, nodep, "AstNodeCCall must be inside a procedure/CFunc/Begin");
new V3GraphEdge{&m_procGraph, getNeedsProcDepVtx(nodep->funcp()),
getNeedsProcDepVtx(m_procp), P_CALL};
UINFO(9, "V3Timing: Processing CCall to " << funcp->name() << " in dependency graph\n");
new V3GraphEdge{&m_suspGraph, getSuspendDepVtx(funcp), getSuspendDepVtx(m_procp), P_CALL};
new V3GraphEdge{&m_procGraph, getNeedsProcDepVtx(funcp), getNeedsProcDepVtx(m_procp),
P_CALL};
iterateChildren(nodep);
}
@@ -976,8 +980,16 @@ class TimingControlVisitor final : public VNVisitor {
}
}
void visit(AstNodeCCall* nodep) override {
if (nodep->funcp()->needProcess()) m_hasProcess = true;
if (hasFlags(nodep->funcp(), T_SUSPENDEE) && !nodep->user1SetOnce()) { // If suspendable
AstCFunc* const funcp = nodep->funcp();
// Skip automatic covergroup sampling calls
if (funcp->isCovergroupSample()) {
iterateChildren(nodep);
return;
}
if (funcp->needProcess()) m_hasProcess = true;
if (hasFlags(funcp, T_SUSPENDEE) && !nodep->user1SetOnce()) { // If suspendable
// Calls to suspendables are always void return type, hence parent must be StmtExpr
AstStmtExpr* const stmtp = VN_AS(nodep->backp(), StmtExpr);
stmtp->replaceWith(new AstCAwait{nodep->fileline(), nodep->unlinkFrBack()});