caio/clang-p2996
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[Clang] Loop over FieldDecls instead of all Decls (#89453)

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Only FieldDecls are of importance here. A struct defined within another
struct has the same semantics as if it were defined outside of the
struct. So there's no need to look into RecordDecls that aren't a field.
This commit is contained in:
Bill Wendling
2024-04-19 14:38:17 -07:00
committed by GitHub
parent 45432eec0a
commit 5bcf31ebfa
1 changed files with 5 additions and 6 deletions
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11
clang/lib/CodeGen/CGBuiltin.cpp
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@@ -861,14 +861,13 @@ const FieldDecl *CodeGenFunction::FindFlexibleArrayMemberField(
static unsigned CountCountedByAttrs(const RecordDecl *RD) {
unsigned Num = 0;
for (const Decl *D : RD->decls()) {
if (const auto *FD = dyn_cast<FieldDecl>(D);
FD && FD->getType()->isCountAttributedType()) {
for (const FieldDecl *FD : RD->fields()) {
if (FD->getType()->isCountAttributedType())
return ++Num;
}
if (const auto *Rec = dyn_cast<RecordDecl>(D))
Num += CountCountedByAttrs(Rec);
QualType Ty = FD->getType();
if (Ty->isRecordType())
Num += CountCountedByAttrs(Ty->getAsRecordDecl());
}
return Num;