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final refining

This commit is contained in:
Yilou Wang 2025-10-23 16:23:31 +02:00
parent 8a85bf6c81
commit a3e7fc89af
1 changed files with 11 additions and 9 deletions
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20
src/V3Randomize.cpp
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@ -268,7 +268,7 @@ class RandomizeMarkVisitor final : public VNVisitor {
// Clone constraints from nested rand class members // Clone constraints from nested rand class members
void cloneNestedConstraintsRecurse(AstVarRef* rootVarRefp, AstClass* classp, void cloneNestedConstraintsRecurse(AstVarRef* rootVarRefp, AstClass* classp,
const std::vector<AstVar*>& pathToClass) { const std::vector<AstVar*>& pathToClass) {
if (!classp) return; UASSERT(classp, "Class pointer should not be null");
for (AstNode* memberNodep = classp->membersp(); memberNodep; for (AstNode* memberNodep = classp->membersp(); memberNodep;
memberNodep = memberNodep->nextp()) { memberNodep = memberNodep->nextp()) {
AstVar* const memberVarp = VN_CAST(memberNodep, Var); AstVar* const memberVarp = VN_CAST(memberNodep, Var);
@ -618,11 +618,12 @@ class RandomizeMarkVisitor final : public VNVisitor {
// Extract and validate components early to avoid repeated type checks // Extract and validate components early to avoid repeated type checks
AstVarRef* const varRefp = VN_CAST(nodep->fromp(), VarRef); AstVarRef* const varRefp = VN_CAST(nodep->fromp(), VarRef);
if (!varRefp || !varRefp->varp()) return; UASSERT(varRefp && varRefp->varp(), "Global constraint path must have valid VarRef");
const AstClassRefDType* const classRefp const AstClassRefDType* const classRefp
= VN_CAST(varRefp->dtypep()->skipRefp(), ClassRefDType); = VN_CAST(varRefp->dtypep()->skipRefp(), ClassRefDType);
if (!classRefp || !classRefp->classp()) return; UASSERT(classRefp && classRefp->classp(),
"Global constraint variable must have valid class type");
if (nodep->user1() && varRefp->varp()->globalConstrained()) { if (nodep->user1() && varRefp->varp()->globalConstrained()) {
AstClass* gConsClass = classRefp->classp(); AstClass* gConsClass = classRefp->classp();
@ -635,7 +636,7 @@ class RandomizeMarkVisitor final : public VNVisitor {
// Clone constraints from the top-level class (e.g., Level1 for obj_a) // Clone constraints from the top-level class (e.g., Level1 for obj_a)
gConsClass->foreachMember( gConsClass->foreachMember(
[&](AstClass* const classp, AstConstraint* const constrp) { [&](AstClass* const classp, AstConstraint* const constrp) {
if (!constrp) return; UASSERT(constrp, "foreachMember should only pass valid constraints");
AstConstraint* const cloneConstrp = constrp->cloneTree(false); AstConstraint* const cloneConstrp = constrp->cloneTree(false);
// Name manipulation // Name manipulation
nameManipulation(varRefp, cloneConstrp); nameManipulation(varRefp, cloneConstrp);
@ -710,8 +711,8 @@ class ConstraintExprVisitor final : public VNVisitor {
// (used to format "%@.%@" for struct arrays) // (used to format "%@.%@" for struct arrays)
// Build full path for a MemberSel chain (e.g., "obj.l2.l3.l4") // Build full path for a MemberSel chain (e.g., "obj.l2.l3.l4")
std::string buildMemberPath(const AstMemberSel* memberSelp) { std::string buildMemberPath(const AstMemberSel* const memberSelp) {
if (!memberSelp) return ""; UASSERT(memberSelp, "MemberSel pointer should not be null");
const AstNode* fromp = memberSelp->fromp(); const AstNode* fromp = memberSelp->fromp();
if (VN_IS(fromp, VarRef)) { if (VN_IS(fromp, VarRef)) {
@ -1148,9 +1149,10 @@ class ConstraintExprVisitor final : public VNVisitor {
while (VN_IS(rootNode, MemberSel)) { rootNode = VN_AS(rootNode, MemberSel)->fromp(); } while (VN_IS(rootNode, MemberSel)) { rootNode = VN_AS(rootNode, MemberSel)->fromp(); }
// Check if the root variable participates in global constraints // Check if the root variable participates in global constraints
AstVar* const constrainedVar UASSERT(VN_IS(rootNode, VarRef), "MemberSel chain must end with VarRef");
= VN_IS(rootNode, VarRef) ? VN_AS(rootNode, VarRef)->varp() : nullptr; AstVar* const constrainedVar = VN_AS(rootNode, VarRef)->varp();
if (constrainedVar && constrainedVar->globalConstrained()) { UASSERT(constrainedVar, "VarRef must have valid variable pointer");
if (constrainedVar->globalConstrained()) {
// Global constraint - unwrap the MemberSel // Global constraint - unwrap the MemberSel
iterateChildren(nodep); iterateChildren(nodep);
nodep->replaceWith(nodep->fromp()->unlinkFrBack()); nodep->replaceWith(nodep->fromp()->unlinkFrBack());