yum-mirror/slang

Making it easier to work with shaders

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

Harsh Aggarwal (NVIDIA)Fix 7723 - Add autodiff tests (#7919)d10732742

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1//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-slang -compute -shaderobj -output-using-type
2//TEST(compute, vulkan):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-vk -compute -shaderobj -output-using-type
3//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-cuda -compute -shaderobj -output-using-type
4
5//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
6RWStructuredBuffer<float> outputBuffer;
7
8typedef DifferentialPair<float> dpfloat;
9
10[Differentiable]
11float test(float x, no_diff out float y)
12{
13    if (x == 1.0)
14        y = 0.0;
15    return x * x;
16}
17
18[Differentiable]
19float caller(float x, no_diff out float y)
20{
21    return test(x, y);
22}
23
24[numthreads(1, 1, 1)]
25void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
26{
27    var p = diffPair(3.0, 0.0);
28    bwd_diff(caller)(p, 1.0);
29    outputBuffer[dispatchThreadID.x] = p.d;
30    // CHECK: 6.0
31}