ext_vector_components.c
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// RUN: %clang_cc1 -fsyntax-only -verify %s
typedef __attribute__(( ext_vector_type(2) )) float float2;
typedef __attribute__(( ext_vector_type(3) )) float float3;
typedef __attribute__(( ext_vector_type(4) )) float float4;
typedef __attribute__(( ext_vector_type(16) )) float float16;
static float4 vec4_0 = (float4)0.5f;
static void test() {
float2 vec2, vec2_2;
float3 vec3;
float4 vec4, vec4_2, *vec4p;
float16 vec16;
float f;
vec2.z; // expected-error {{vector component access exceeds type 'float2'}}
vec2.xyzw; // expected-error {{vector component access exceeds type 'float2'}}
vec4.xyzw; // expected-warning {{expression result unused}}
vec4.xyzc; // expected-error {{illegal vector component name 'c'}}
vec4.s01z; // expected-error {{illegal vector component name 'z'}}
vec2 = vec4.s01; // legal, shorten
vec2 = vec4.S01; // legal, shorten
vec3 = vec4.xyz; // legal, shorten
f = vec2.x; // legal, shorten
f = vec4.xy.x; // legal, shorten
vec4_2.xyzx = vec4.xyzw; // expected-error {{vector is not assignable (contains duplicate components)}}
vec4_2.xyzz = vec4.xyzw; // expected-error {{vector is not assignable (contains duplicate components)}}
vec4_2.xyyw = vec4.xyzw; // expected-error {{vector is not assignable (contains duplicate components)}}
vec2.x = f;
vec2.xx = vec2_2.xy; // expected-error {{vector is not assignable (contains duplicate components)}}
vec2.yx = vec2_2.xy;
vec4 = (float4){ 1,2,3,4 };
vec4.xy.w; // expected-error {{vector component access exceeds type 'float2'}}
vec4.s06; // expected-error {{vector component access exceeds type 'float4'}}
vec4.x = vec16.sf;
vec4.x = vec16.sF;
vec4p->yz = vec4p->xy;
vec2.a; // expected-error {{vector component access exceeds type 'float2'}}
vec2.rgba; // expected-error {{vector component access exceeds type 'float2'}}
vec4.rgba; // expected-warning {{expression result unused}}
vec4.rgbz; // expected-error {{illegal vector component name 'z'}}
vec4.rgbc; // expected-error {{illegal vector component name 'c'}}
vec4.xyzr; // expected-error {{illegal vector component name 'r'}}
vec4.s01b; // expected-error {{vector component access exceeds type 'float4'}}
vec3 = vec4.rgb; // legal, shorten
f = vec2.r; // legal, shorten
f = vec4.rg.r; // legal, shorten
vec4_2.rgba = vec4.xyzw; // legal, no intermingling
vec4_2.rgbr = vec4.rgba; // expected-error {{vector is not assignable (contains duplicate components)}}
vec4_2.rgbb = vec4.rgba; // expected-error {{vector is not assignable (contains duplicate components)}}
vec4_2.rgga = vec4.rgba; // expected-error {{vector is not assignable (contains duplicate components)}}
vec2.x = f;
vec2.rr = vec2_2.rg; // expected-error {{vector is not assignable (contains duplicate components)}}
vec2.gr = vec2_2.rg;
vec2.gr.g = vec2_2.r;
vec4 = (float4){ 1,2,3,4 };
vec4.rg.b; // expected-error {{vector component access exceeds type 'float2'}}
vec4.r = vec16.sf;
vec4.g = vec16.sF;
vec4p->gb = vec4p->rg;
}
float2 lo(float3 x) { return x.lo; }
float2 hi(float3 x) { return x.hi; }
float2 ev(float3 x) { return x.even; }
float2 od(float3 x) { return x.odd; }