yum-mirror/slang

Making it easier to work with shaders

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

James Helferty (NVIDIA)render-test: Change D3D12 default to sm_6_5 (#8320)f02b08490

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1//DISABLED_TEST(compute, vulkan):COMPARE_COMPUTE_EX():-vk -compute -shaderobj -output-using-type -render-features wave-ops
2//DISABLED_TEST(compute):COMPARE_COMPUTE_EX():-dx12 -profile sm_6_5 -compute -shaderobj -output-using-type -render-features wave-ops
3
4//
5// This test checks whether adjacent calls to saturated_cooperation are fused
6//
7
8//TEST_INPUT:ubuffer(data=[0 3 2 2], stride=4):out,name=outputBuffer
9RWStructuredBuffer<uint> outputBuffer;
10
11static int count = 0;
12
13int cooperate(float x, int i)
14{
15    count += i;
16    return int(x) * 2;
17}
18
19int fallback(float x, int)
20{
21    count += 100;
22    return int(x) * 3;
23}
24
25int cooperate2(float x, float f)
26{
27    count *= int(f);
28    return int(x) * 2;
29}
30
31int fallback2(float x, float)
32{
33    count += 100;
34    return int(x) * 3;
35}
36
37// Make sure that we have enough invocations to saturate the first workgroup
38[numthreads(128, 1, 1)]
39void computeMain(uint tig : SV_GroupIndex)
40{
41    // The values we're cooperating over are {0, 2, 3}
42    // We track the number of sets evaluated in the "count" variable, and write
43    // that at index 0
44    //
45    // If these are not fused, then we'd expect count to be incremented three
46    // times then doubled three times. What we want to see is 
47    // 0, +1, *2, +1, *2, +1, *2 = 14
48    let i = tig < 4 ? float(outputBuffer[tig]) : 0;
49    let y = saturated_cooperation(cooperate, fallback, i, 1);
50    let x = saturated_cooperation(cooperate2, fallback2, i, 2.f);
51    if(tig < 4)
52        outputBuffer[tig] = tig == 0 ? count : x;
53
54}