[clang] [clang] Add clang::preferred_type attribute for bitfields (PR #69104)
Vlad Serebrennikov via cfe-commits
cfe-commits at lists.llvm.org
Mon Oct 23 04:23:20 PDT 2023
================
@@ -5910,6 +5910,30 @@ static void handleBuiltinAliasAttr(Sema &S, Decl *D,
D->addAttr(::new (S.Context) BuiltinAliasAttr(S.Context, AL, Ident));
}
+static void handleDebugInfoTypeAttr(Sema &S, Decl *D, const ParsedAttr &AL) {
+ if (!AL.hasParsedType()) {
+ S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << AL << 1;
+ return;
+ }
+
+ TypeSourceInfo *ParmTSI = nullptr;
+ QualType type = S.GetTypeFromParser(AL.getTypeArg(), &ParmTSI);
+ assert(ParmTSI && "no type source info for attribute argument");
+
+ if (type->isEnumeralType()) {
+ QualType BitfieldType = llvm::cast<FieldDecl>(D)->getType();
+ QualType EnumUnderlyingType =
+ type->getAs<EnumType>()->getDecl()->getIntegerType();
+ if (EnumUnderlyingType != BitfieldType) {
----------------
Endilll wrote:
With `typedef` and sign-ness issues fixed, I consider this done.
https://github.com/llvm/llvm-project/pull/69104
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