yum-mirror/slang

Making it easier to work with shaders

git clone https://git.yummers.dev/yum-mirror/slang

Jay KwakKeep const-ness in generic functions (#4028)ed0681164

master
branchesmasterall refs →
967 B33 linesraw
1//TEST:SIMPLE(filecheck=CHECK): -stage compute -entry computeMain -target glsl -allow-glsl
2//TEST:SIMPLE(filecheck=CHECK): -stage compute -entry computeMain -target glsl -allow-glsl -DUSE_GENERIC
3
4// This tests an issue that "const" variable was losing the
5// const-ness when they are in a generic function
6
7uniform sampler2D uniform_sampler2D;
8RWStructuredBuffer<float> outputBuffer;
9
10#ifdef USE_GENERIC
11__generic<T:__BuiltinArithmeticType>
12#endif
13vec4 MyFunc()
14{
15    //CHECK: const ivec2 offset0
16    //CHECK: const ivec2 offset1
17    const ivec2 offset0 = ivec2(0,0);
18    const ivec2 offset1 = ivec2(1,1);
19    const ivec2[4] offsets = { offset0, offset0, offset1, offset1 };
20    return textureGatherOffsets(uniform_sampler2D, vec2(0), offsets);
21}
22
23[numthreads(4, 1, 1)]
24void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
25{
26#ifdef USE_GENERIC
27    vec4 result = MyFunc<float>();
28#else
29    vec4 result = MyFunc();
30#endif
31
32    outputBuffer[0] = result[0];
33}