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Fix solve-before over array variables failing randomization (#7876)

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This commit is contained in:
Yilou Wang
2026-07-11 20:44:37 -04:00
committed by GitHub
parent 52287c025f
commit ca83bc50bf
8 changed files with 275 additions and 38 deletions
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src/V3Randomize.cpp
+12
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@@ -2165,6 +2165,12 @@ class ConstraintExprVisitor final : public VNVisitor {
AstNodeModule* const genModp = VN_AS(m_genp->user2p(), NodeModule);
for (AstNodeExpr* lhsp = nodep->lhssp(); lhsp; lhsp = VN_CAST(lhsp->nextp(), NodeExpr)) {
if (VN_IS(lhsp->dtypep()->skipRefp(), AssocArrayDType)) {
lhsp->v3warn(E_UNSUPPORTED,
"Unsupported: 'solve ... before' with associative array");
VL_DO_DANGLING(nodep->unlinkFrBack()->deleteTree(), nodep);
return;
}
AstNodeExpr* const lhsTestp = buildSolveBeforeNameExpr(fl, lhsp);
if (!lhsTestp) {
lhsp->v3fatalSrc("Unexpected expression type in solve...before lhs");
@@ -2173,6 +2179,12 @@ class ConstraintExprVisitor final : public VNVisitor {
VL_DO_DANGLING(lhsTestp->deleteTree(), lhsTestp);
for (AstNodeExpr* rhsp = nodep->rhssp(); rhsp;
rhsp = VN_CAST(rhsp->nextp(), NodeExpr)) {
if (VN_IS(rhsp->dtypep()->skipRefp(), AssocArrayDType)) {
rhsp->v3warn(E_UNSUPPORTED,
"Unsupported: 'solve ... before' with associative array");
VL_DO_DANGLING(nodep->unlinkFrBack()->deleteTree(), nodep);
return;
}
AstNodeExpr* const rhsNamep = buildSolveBeforeNameExpr(fl, rhsp);
if (!rhsNamep) {
rhsp->v3fatalSrc("Unexpected expression type in solve...before rhs");