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<float> dpfloat;
9
10[ForwardDifferentiable]
11float f(float x)
12{
13    float3 vx = float3(x, 2*x, 3*x);
14    float3 vexpx = exp(vx);
15    return vexpx.x + vexpx.y + vexpx.z;
16}
17
18[numthreads(1, 1, 1)]
19void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID)
20{
21    {
22        dpfloat dpa = dpfloat(2.0, 1.0);
23
24        outputBuffer[0] = f(dpa.p);        // Expect: 465.415999
25        outputBuffer[1] = __fwd_diff(f)(dpa).d; // Expect: 1326.871736
26    }
27}