1 // RUN: %clang_cc1 -std=c++11 -emit-pch %s -o %t
2 // RUN: %clang_cc1 -std=c++11 -include-pch %t -verify %s
3 
4 #ifndef HEADER_INCLUDED
5 
6 #define HEADER_INCLUDED
7 
8 template<typename T, int N>
9 using vec = T __attribute__((ext_vector_type(N)));
10 
11 #else
12 
13 void test() {
14   vec<float, 2> a;  // expected-error@-5 {{zero vector size}}
15   vec<float, 0> b; // expected-note {{in instantiation of template type alias 'vec' requested here}}
16 }
17 
18 #endif
19