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Add support for this.randomize with (#5282)

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Signed-off-by: Arkadiusz Kozdra <[email protected]>
This commit is contained in:
Arkadiusz Kozdra
2024-07-19 09:14:56 +02:00
committed by GitHub
parent b18037b7e7
commit 43377ed8b0
3 changed files with 50 additions and 18 deletions
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src/V3Randomize.cpp
+23 -17
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@@ -898,25 +898,33 @@ class RandomizeVisitor final : public VNVisitor {
nodep->replaceWith(newp);
VL_DO_DANGLING(pushDeletep(nodep), nodep);
}
void visit(AstMethodCall* nodep) override {
void visit(AstNodeFTaskRef* nodep) override {
AstWith* const withp = VN_CAST(nodep->pinsp(), With);
if (!(nodep->name() == "randomize") || !withp) {
iterateChildren(nodep);
return;
}
withp->unlinkFrBack();
iterateChildren(nodep);
UASSERT_OBJ(nodep->fromp()->dtypep(), nodep->fromp(), "Object dtype is not linked");
AstClassRefDType* const classrefdtypep = VN_CAST(nodep->fromp()->dtypep(), ClassRefDType);
if (!classrefdtypep) {
nodep->v3warn(E_UNSUPPORTED,
"Inline constraints are not supported for this node type");
return;
AstClass* classp = nullptr;
if (AstMethodCall* const callp = VN_CAST(nodep, MethodCall)) {
UASSERT_OBJ(callp->fromp()->dtypep(), callp->fromp(), "Object dtype is not linked");
AstClassRefDType* const classrefdtypep
= VN_CAST(callp->fromp()->dtypep(), ClassRefDType);
if (!classrefdtypep) {
nodep->v3warn(E_UNSUPPORTED,
"Inline constraints are not supported for this node type");
return;
}
classp = classrefdtypep->classp();
UASSERT_OBJ(classp, classrefdtypep, "Class type is unlinked to its ref type");
} else {
classp = VN_CAST(m_modp, Class);
UASSERT_OBJ(classp, m_modp, "Module not class, should have failed in V3Width");
}
AstClass* const classp = classrefdtypep->classp();
UASSERT_OBJ(classp, classrefdtypep, "Class type is unlinked to its ref type");
if (classp->user1()) {
// We need to first ensure that the class randomizer is instantiated if needed
// NOTE: This is safe only because AstClass visit function overwrites all
@@ -985,15 +993,13 @@ class RandomizeVisitor final : public VNVisitor {
solverCallp});
// Replace the node with a call to that function
AstMethodCall* const callp
= new AstMethodCall(nodep->fileline(), nodep->fromp()->unlinkFrBack(),
randomizeFuncp->name(), captured.getArgs());
callp->taskp(randomizeFuncp);
callp->dtypeFrom(randomizeFuncp->dtypep());
callp->classOrPackagep(classp);
nodep->replaceWith(callp);
nodep->name(randomizeFuncp->name());
nodep->addPinsp(captured.getArgs());
nodep->taskp(randomizeFuncp);
nodep->dtypeFrom(randomizeFuncp->dtypep());
nodep->classOrPackagep(classp);
UINFO(9, "Added `%s` randomization procedure");
VL_DO_DANGLING(nodep->deleteTree(), nodep);
VL_DO_DANGLING(withp->deleteTree(), withp);
}
void visit(AstNode* nodep) override { iterateChildren(nodep); }