================
@@ -1516,6 +1516,23 @@ void ASTContext::InitBuiltinTypes(const TargetInfo
&Target,
MSGuidTagDecl = buildImplicitRecord("_GUID");
getTranslationUnitDecl()->addDecl(MSGuidTagDecl);
}
+
+ // size_t (C99TC3 6.5.3.4), signed size_t (C++23 5.13.2) and
+ // ptrdiff_t (C99TC3 6.5.6) Although these types are not built-in, they are
+ // part of the core language and are widely used.
+ if (!LangOpts.HLSL) {
+ // Using PredefinedSugarType makes these types as named sugar types rather
+ // than standard integer types, enabling better hints and diagnostics.
+ using Kind = PredefinedSugarType::Kind;
+ SizeType = getPredefinedSugarType(llvm::to_underlying(Kind::SizeT));
+ SignedSizeType =
+ getPredefinedSugarType(llvm::to_underlying(Kind::SignedSizeT));
+ PtrdiffType = getPredefinedSugarType(llvm::to_underlying(Kind::PtrdiffT));
+ } else {
+ SizeType = getFromTargetType(Target.getSizeType());
+ SignedSizeType = getFromTargetType(Target.getSignedSizeType());
+ PtrdiffType = getFromTargetType(Target.getPtrDiffType(LangAS::Default));
+ }
----------------
mizvekov wrote:
What's the problem with using this for HLSL, is it just because it uses
different names?
https://github.com/llvm/llvm-project/pull/143653
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