================
@@ -1205,12 +1204,21 @@ llvm::Value *CodeGenFunction::GetCountedByFieldExprGEP(
// Using getOuterLexicalRecordContext() here would be wrong because it walks
// past named nested structs to the outermost record, causing a crash when a
// struct with a counted_by FAM is defined nested inside another struct.
- const RecordDecl *RD = CountDecl->getParent();
- while (RD->isAnonymousStructOrUnion()) {
- const auto *Parent = dyn_cast<RecordDecl>(RD->getLexicalParent());
- if (!Parent)
- break;
- RD = Parent;
+ //
+ // The Base expression may itself be a pointer to a field of type 'struct'.
If
+ // so, then we want to use that as the "base" RecordDecl.
+ QualType Ty = Base->IgnoreParenNoopCasts(getContext())->getType();
----------------
rapidsna wrote:
Got it! Yes, it seems `IgnoreParenNoopCasts` ignores casts between same widths,
so it should work.
https://github.com/llvm/llvm-project/pull/205903
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