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:-slang -compute -shaderobj -output-using-type
2//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -output-using-type
3//TEST(compute):COMPARE_COMPUTE_EX:-cuda -compute -shaderobj -output-using-type
4
5//TEST_INPUT:ubuffer(data=[0], stride=4):out,name=outputBuffer
6RWStructuredBuffer<float> outputBuffer;
7
8struct A
9{
10    float x;
11
12    [ForwardDerivative(diff_f)]
13    float f(float v)
14    {
15        return v * v;
16    }
17
18    DifferentialPair<float> diff_f(DifferentialPair<float> v)
19    {
20        return diffPair(v.p * v.p, v.p * v.d * 2.0);
21    }
22}
23
24[ForwardDifferentiable]
25float test(A obj, float v)
26{
27    return obj.f(v);
28}
29
30[numthreads(1, 1, 1)]
31void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
32{
33    A a = {0.0};
34    var p = diffPair(3.0, 1.0);
35    let rs = __fwd_diff(test)(a, p);
36    outputBuffer[0] = rs.d;
37}