bool vector swizzle is allowed in hlsl

spall · spall · commit b231f4e47ed2 · 2025-01-21T17:03:39.000Z
diff --git a/clang/lib/Sema/SemaExprMember.cpp b/clang/lib/Sema/SemaExprMember.cpp
@@ -1697,7 +1697,7 @@ static ExprResult LookupMemberExpr(Sema &S, LookupResult &R,
         QualType(), false);
   }
 
-  if (BaseType->isExtVectorBoolType()) {
+  if (BaseType->isExtVectorBoolType() && !S.Context.getLangOpts().HLSL) {
     // We disallow element access for ext_vector_type bool.  There is no way to
     // materialize a reference to a vector element as a pointer (each element is
     // one bit in the vector).

Original file line number	Diff line number	Diff line change
`@@ -1697,7 +1697,7 @@ static ExprResult LookupMemberExpr(Sema &S, LookupResult &R,`
`1697`	`1697`	`QualType(), false);`
`1698`	`1698`	`}`
`1699`	`1699`
`1700`		`- if (BaseType->isExtVectorBoolType()) {`
	`1700`	`+ if (BaseType->isExtVectorBoolType() && !S.Context.getLangOpts().HLSL) {`
`1701`	`1701`	`// We disallow element access for ext_vector_type bool. There is no way to`
`1702`	`1702`	`// materialize a reference to a vector element as a pointer (each element is`
`1703`	`1703`	`// one bit in the vector).`