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Add error when improperly storing to parameter (#5147).

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This commit is contained in:
Wilson Snyder
2024-11-05 00:17:40 -05:00
parent 2e4676dc11
commit b1dfdef0a9
6 changed files with 51 additions and 5 deletions
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src/V3LinkLValue.cpp
+7
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@@ -48,6 +48,13 @@ class LinkLValueVisitor final : public VNVisitor {
if (m_setIfRand && !(nodep->varp() && nodep->varp()->isRand())) return;
if (m_setRefLvalue != VAccess::NOCHANGE) nodep->access(m_setRefLvalue);
if (nodep->varp() && nodep->access().isWriteOrRW()) {
if (nodep->varp()->isParam()) {
// All parameters that did get constified happened before now
// as V3LinkLValue runs after V3Param
nodep->v3error("Storing to parameter variable "
<< nodep->prettyNameQ()
<< " in a context that is determed only at runtime");
}
if (m_setContinuously) {
nodep->varp()->isContinuously(true);
// Strength may only be specified in continuous assignment,