[clang] [PAC] Add support for __ptrauth type qualifier (PR #100830)

[Daniil Kovalev via cfe-commits]

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@@ -166,6 +193,92 @@ CGPointerAuthInfo CodeGenModule::getPointerAuthInfoForType(QualType T) {
   return ::getPointerAuthInfoForType(*this, T);
 }
 
+static std::pair<llvm::Value *, CGPointerAuthInfo>
+emitLoadOfOrigPointerRValue(CodeGenFunction &CGF, const LValue &LV,
+                            SourceLocation Loc) {
+  auto *Value = CGF.EmitLoadOfScalar(LV, Loc);
+  CGPointerAuthInfo AuthInfo;
+  if (PointerAuthQualifier PtrAuth = LV.getQuals().getPointerAuth()) {
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kovdan01 wrote:

Nit: you can probably omit braces in this if/else chain

https://github.com/llvm/llvm-project/pull/100830