ext_vector_components.c revision e8c9e9218f215ec6089f12b076c7b9d310fd5194 
1// RUN: clang-cc -fsyntax-only -verify %s
2
3typedef __attribute__(( ext_vector_type(2) )) float float2;
4typedef __attribute__(( ext_vector_type(3) )) float float3;
5typedef __attribute__(( ext_vector_type(4) )) float float4;
6typedef __attribute__(( ext_vector_type(16) )) float float16;
7
8static float4 vec4_0 = (float4)0.5f;
9
10static 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    vec2 = vec3.hi; // expected-error {{vector component access invalid for odd-sized type 'float3'}}
30
31    vec4_2.xyzx = vec4.xyzw; // expected-error {{vector is not assignable (contains duplicate components)}}
32    vec4_2.xyzz = vec4.xyzw; // expected-error {{vector is not assignable (contains duplicate components)}}
33    vec4_2.xyyw = vec4.xyzw; // expected-error {{vector is not assignable (contains duplicate components)}}
34    vec2.x = f;
35    vec2.xx = vec2_2.xy; // expected-error {{vector is not assignable (contains duplicate components)}}
36    vec2.yx = vec2_2.xy;
37    vec4 = (float4){ 1,2,3,4 };
38    vec4.xy.w; // expected-error {{vector component access exceeds type 'float2'}}
39    vec4.s06; // expected-error {{vector component access exceeds type 'float4'}}
40    vec4.x = vec16.sf;
41    vec4.x = vec16.sF;
42
43    vec4p->yz = vec4p->xy;
44}
45