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Support waiting on clocking block event through modport (#8403) (#8530)

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This commit is contained in:
Saqib Khan
2026-09-29 08:50:57 -04:00
committed by GitHub
parent 647b2056ed
commit 9d9d367302
4 changed files with 107 additions and 2 deletions
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src/V3LinkDot.cpp
+9 -2
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@@ -3482,6 +3482,13 @@ class LinkDotResolveVisitor final : public VNVisitor {
}
defParamPins.emplace(nodep->paramPath(), nodep);
}
static AstClocking* sensClockingp(AstNode* nodep) {
// Return the clocking block referenced by nodep, either directly or through a modport
if (AstClocking* const clockingp = VN_CAST(nodep, Clocking)) return clockingp;
if (const AstModportClockingRef* const clockingRefp = VN_CAST(nodep, ModportClockingRef))
return clockingRefp->clockingp();
return nullptr;
}
VSymEnt* getCreateClockingEventSymEnt(AstClocking* clockingp) {
AstVar* const eventp = clockingp->ensureEventp(true);
if (!eventp->user1p()) eventp->user1p(new VSymEnt{m_statep->symsp(), eventp});
@@ -4465,7 +4472,7 @@ class LinkDotResolveVisitor final : public VNVisitor {
bool ok = false;
// Special case: waiting on clocking event
if (m_inSens && foundp && m_ds.m_dotPos != DP_SCOPE && m_ds.m_dotPos != DP_FIRST) {
if (AstClocking* const clockingp = VN_CAST(foundp->nodep(), Clocking)) {
if (AstClocking* const clockingp = sensClockingp(foundp->nodep())) {
foundp = getCreateClockingEventSymEnt(clockingp);
}
}
@@ -5081,7 +5088,7 @@ class LinkDotResolveVisitor final : public VNVisitor {
foundp = m_statep->findSymPrefixed(dotSymp, nodep->name(), baddot, true);
}
if (m_inSens && foundp) {
if (AstClocking* const clockingp = VN_CAST(foundp->nodep(), Clocking)) {
if (AstClocking* const clockingp = sensClockingp(foundp->nodep())) {
foundp = getCreateClockingEventSymEnt(clockingp);
}
}