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, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -output-using-type
2//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj -output-using-type
3//TEST(compute):COMPARE_COMPUTE_EX:-cuda -compute -shaderobj -output-using-type
4
5//TEST_INPUT:ubuffer(data=[0 0 0 0 0 0], stride=4):out,name=outputBuffer
6RWStructuredBuffer<float> outputBuffer;
7
8typedef DifferentialPair<float3> dpfloat3;
9
10[BackwardDifferentiable]
11float diffDot(float3 x, float3 y)
12{
13    return dot(x, y);
14}
15
16[numthreads(1, 1, 1)]
17void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID)
18{
19    {
20        dpfloat3 dpx = dpfloat3(float3(-0.5, 0.7, 0.8), float3(0.0, 0.0, 0.0));
21        dpfloat3 dpy = dpfloat3(float3(0.0, 0.0, 1.0), float3(0.0, 0.0, 0.0));
22        __bwd_diff(diffDot)(dpx, dpy, 1.0);
23        outputBuffer[0] = dpx.d[0]; // Expect: 0.000000
24        outputBuffer[1] = dpx.d[1]; // Expect: 0.000000
25        outputBuffer[2] = dpx.d[2]; // Expect: 1.000000
26        outputBuffer[3] = dpy.d[0]; // Expect: -0.500000
27        outputBuffer[4] = dpy.d[1]; // Expect: 0.700000
28        outputBuffer[5] = dpy.d[2]; // Expect: 0.800000
29    }
30}