================
@@ -731,6 +723,18 @@ class TransferVisitor : public
ConstStmtVisitor<TransferVisitor> {
FieldLocs.insert({Field, &Loc});
}
+ // In the case of a union, we don't in general have initializers for all
+ // of the fields. Create storage locations for the remaining fields (but
+ // don't associate them with values).
+ if (Type->isUnionType()) {
+ for (const FieldDecl *Field :
+ Env.getDataflowAnalysisContext().getModeledFields(Type)) {
+ if (!FieldLocs.contains(Field))
+ FieldLocs.insert(
----------------
Xazax-hun wrote:
Probably we could save a lookup if we did something like
```
if (auto [it, inserted] = FieldLocs.insert({Field, nullptr}); inserted)
it->second = &Env.createStorageLocation(Field->getType());
```
https://github.com/llvm/llvm-project/pull/82348
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