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      1 // RUN: %clang_cc1 -fsyntax-only -verify %s
      2 
      3 typedef __attribute__(( ext_vector_type(2) )) float float2;
      4 typedef __attribute__(( ext_vector_type(3) )) float float3;
      5 typedef __attribute__(( ext_vector_type(4) )) float float4;
      6 typedef __attribute__(( ext_vector_type(16) )) float float16;
      7 
      8 static float4 vec4_0 = (float4)0.5f;
      9 
     10 static void test() {
     11     float2 vec2, vec2_2;
     12     float3 vec3;
     13     float4 vec4, vec4_2, *vec4p;
     14     float16 vec16;
     15     float f;
     16 
     17     vec2.z; // expected-error {{vector component access exceeds type 'float2'}}
     18     vec2.xyzw; // expected-error {{vector component access exceeds type 'float2'}}
     19     vec4.xyzw; // expected-warning {{expression result unused}}
     20     vec4.xyzc; // expected-error {{illegal vector component name 'c'}}
     21     vec4.s01z; // expected-error {{illegal vector component name 'z'}}
     22     vec2 = vec4.s01; // legal, shorten
     23     vec2 = vec4.S01; // legal, shorten
     24 
     25     vec3 = vec4.xyz; // legal, shorten
     26     f = vec2.x; // legal, shorten
     27     f = vec4.xy.x; // legal, shorten
     28 
     29     vec4_2.xyzx = vec4.xyzw; // expected-error {{vector is not assignable (contains duplicate components)}}
     30     vec4_2.xyzz = vec4.xyzw; // expected-error {{vector is not assignable (contains duplicate components)}}
     31     vec4_2.xyyw = vec4.xyzw; // expected-error {{vector is not assignable (contains duplicate components)}}
     32     vec2.x = f;
     33     vec2.xx = vec2_2.xy; // expected-error {{vector is not assignable (contains duplicate components)}}
     34     vec2.yx = vec2_2.xy;
     35     vec4 = (float4){ 1,2,3,4 };
     36     vec4.xy.w; // expected-error {{vector component access exceeds type 'float2'}}
     37     vec4.s06; // expected-error {{vector component access exceeds type 'float4'}}
     38     vec4.x = vec16.sf;
     39     vec4.x = vec16.sF;
     40 
     41     vec4p->yz = vec4p->xy;
     42 }
     43 
     44 float2 lo(float3 x) { return x.lo; }
     45 float2 hi(float3 x) { return x.hi; }
     46 float2 ev(float3 x) { return x.even; }
     47 float2 od(float3 x) { return x.odd; }
     48