yum-mirror/slang

Making it easier to work with shaders

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

Jay KwakDisable a few WGSL testing using Wave functions in branches (#8386)ffd58977b

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1//TEST_CATEGORY(wave, compute)
2//DISABLE_TEST:COMPARE_COMPUTE_EX:-cpu -compute -shaderobj
3//DISABLE_TEST:COMPARE_COMPUTE_EX:-slang -compute -shaderobj
4//TEST:COMPARE_COMPUTE_EX:-slang -compute -dx12 -profile cs_6_0 -shaderobj -render-feature hardware-device
5//TEST(vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -render-feature hardware-device
6//TEST:COMPARE_COMPUTE_EX:-cuda -compute -capability cuda_sm_7_0 -shaderobj
7//TEST:COMPARE_COMPUTE_EX:-metal -compute -shaderobj
8
9// WGSL doesn't support wave functions in a dynamic control flow; it works with uniform control flow.
10//DISABLE_TEST:COMPARE_COMPUTE_EX:-wgpu -compute -shaderobj
11
12//TEST_INPUT:ubuffer(data=[0 0 0 0  0 0 0 0], stride=4):out,name outputBuffer
13RWStructuredBuffer<int> outputBuffer;
14
15[numthreads(8, 1, 1)]
16void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
17{
18    const int idx = int(dispatchThreadID.x);
19
20#if 1
21    if (idx < 3)
22    {
23        // Diverge!!
24        outputBuffer[idx] = -1; // thread 0, 1 and 2 will get 0xFFFFFFFF
25        return;
26    }
27
28    // thread 2, 3, 4, 5, 6, 7 will get the result of 2 * 3 * 4 * 5 * 6 * 7
29    // which is 2520, which is 9D8 in hex
30    outputBuffer[idx] = WaveActiveProduct(idx);
31#else
32
33    /// NOTE! Can't say I totally understand WaveActiveProduct.
34    /// The following returns 0x240 on CUDA - which is what I'd expect
35    /// On DX12, it returns 0
36
37    outputBuffer[idx] = WaveActiveProduct((idx & 3) + 1);
38#endif
39}