[clang] [Sema] Fix assertion error in Sema::FindInstantiatedDecl (PR #96509)

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In-Reply-To: <llvm.org/llvm/llvm-project/pull/96509 at github.com>


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@@ -6300,7 +6300,7 @@ NamedDecl *Sema::FindInstantiatedDecl(SourceLocation Loc, NamedDecl *D,
                   getTrivialTemplateArgumentLoc(UnpackedArg, QualType(), Loc));
           }
           QualType T = CheckTemplateIdType(TemplateName(TD), Loc, Args);
-          if (T.isNull())
+          if (T.isNull() || T->containsErrors())
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Sirraide wrote:

Hmm, yeah, if every other place where this is used can already deal with a type that contains errors, then that makes sense.

https://github.com/llvm/llvm-project/pull/96509