Add specific keyword so this is invalid when unsupported

jhuber6 · jhuber6 · commit 13a4d6be1b25 · 2025-03-06T19:58:00.000-06:00
diff --git a/clang/include/clang/Basic/Attr.td b/clang/include/clang/Basic/Attr.td
@@ -1722,7 +1722,7 @@ def EnableIf : InheritableAttr {
 }
 
 def ExtVectorType : TypeAttr {
-  let Spellings = [GNU<"ext_vector_type">];
+  let Spellings = [RegularKeyword<"__vector_type">, GNU<"ext_vector_type">];
   let Args = [ExprArgument<"NumElements">];
   let Documentation = [ExtVectorTypeDocs];
 }
diff --git a/clang/include/clang/Basic/AttrDocs.td b/clang/include/clang/Basic/AttrDocs.td
@@ -1116,7 +1116,6 @@ template instantiation, so the value for ``T::number`` is known.
 def ExtVectorTypeDocs : Documentation {
   let Category = DocCatFunction;
   let Content = [{
-
 The ext_vector_type(N) attribute specifies that a type is a vector with N
 elements, directly mapping to an LLVM vector type. Originally from OpenCL, it
 allows element access the array subscript operator ``[]``, ``sN`` where ``N`` is

Original file line number	Diff line number	Diff line change
`@@ -1722,7 +1722,7 @@ def EnableIf : InheritableAttr {`
`1722`	`1722`	`}`
`1723`	`1723`
`1724`	`1724`	`def ExtVectorType : TypeAttr {`
`1725`		`- let Spellings = [GNU<"ext_vector_type">];`
	`1725`	`+ let Spellings = [RegularKeyword<"__vector_type">, GNU<"ext_vector_type">];`
`1726`	`1726`	`let Args = [ExprArgument<"NumElements">];`
`1727`	`1727`	`let Documentation = [ExtVectorTypeDocs];`
`1728`	`1728`	`}`