f322eabbce
vector of the same element type and half the width, with the high, low, even, and odd elements respectively. Allow member references to member references, so that .hi.hi gives you the high quarter of a vector. This is fairly convenient syntax for some insert/extract operations. Remove some unnecessary methods/types in the ExtVectorElementExpr class. llvm-svn: 50892
29 lines
1.3 KiB
C
29 lines
1.3 KiB
C
// RUN: clang -fsyntax-only -verify %s
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typedef __attribute__(( ext_vector_type(2) )) float float2;
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typedef __attribute__(( ext_vector_type(3) )) float float3;
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typedef __attribute__(( ext_vector_type(4) )) float float4;
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static void test() {
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float2 vec2, vec2_2;
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float3 vec3;
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float4 vec4, vec4_2;
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float f;
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vec2.z; // expected-error {{vector component access exceeds type 'float2'}}
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vec2.rgba; // expected-error {{vector component access exceeds type 'float2'}}
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vec4.rgba; // expected-warning {{expression result unused}}
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vec4.rgbc; // expected-error {{illegal vector component name 'c'}}
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vec3 = vec4.rgb; // legal, shorten
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f = vec2.x; // legal, shorten
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vec4_2.rgbr = vec4.rgba; // expected-error {{vector is not assignable (contains duplicate components)}}
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vec4_2.rgbb = vec4.rgba; // expected-error {{vector is not assignable (contains duplicate components)}}
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vec4_2.rgga = vec4.rgba; // expected-error {{vector is not assignable (contains duplicate components)}}
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vec2.x = f;
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vec2.xx = vec2_2.xy; // expected-error {{vector is not assignable (contains duplicate components)}}
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vec2.yx = vec2_2.xy;
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vec4 = (float4){ 1,2,3,4 };
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vec4.rg.a; // expected-error {{vector component access exceeds type 'float2'}}
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}
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