Update tests

Author: jhuber6

clang/test/CodeGenCUDA/amdgpu-bf16.cu

@@ -114,12 +114,12 @@ __device__ void test_vec_assign() {
   __bf16 [[clang::ext_vector_type(2)]] vec2_a, vec2_b;
   vec2_a = vec2_b;
 
-  __bf16 [[clang::ext_vector_type(4)]] vec4_a, vec4_b;
+  __bf16 __attribute__((ext_vector_type(4))) vec4_a, vec4_b;
   vec4_a = vec4_b;
 
   __bf16 [[clang::ext_vector_type(8)]] vec8_a, vec8_b;
   vec8_a = vec8_b;
 
-  __bf16 [[clang::ext_vector_type(16)]] vec16_a, vec16_b;
+  __bf16 __attribute__((ext_vector_type(16))) vec16_a, vec16_b;
   vec16_a = vec16_b;
 }

clang/test/Sema/vector-ast.c renamed to clang/test/Sema/vector-ast.cpp

@@ -2,12 +2,14 @@
 
 // expected-no-diagnostics
 
-// CHECK: VarDecl {{.*}} x 'int __attribute__((ext_vector_type(4)))'
+//      CHECK: ExtVectorType {{.*}} 'int __attribute__((ext_vector_type(4)))' 4
+// CHECK-NEXT: BuiltinType {{.*}} 'int'
 int x __attribute__((ext_vector_type(4)));
+using ExtVecType = decltype(x);
 
 // CHECK: FunctionDecl {{.*}} 'int () __attribute__((ext_vector_type(4)))'
 int __attribute__((ext_vector_type(4))) foo() { return x; }
-// CHECK:  CompoundStmt
+//      CHECK:  CompoundStmt
 // CHECK-NEXT: ReturnStmt
 // CHECK-NEXT: ImplicitCastExpr {{.*}} 'int __attribute__((ext_vector_type(4)))' <LValueToRValue>
 // CHECK-NEXT: DeclRefExpr {{.*}} 'int __attribute__((ext_vector_type(4)))' lvalue Var {{.*}} 'x' 'int __attribute__((ext_vector_type(4)))'