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
8[ForwardDerivative(diff_f)]
9float f(float v)
10{
11    return v * v;
12}
13
14DifferentialPair<float> diff_f(DifferentialPair<float> v)
15{
16    return diffPair(v.p * v.p, 2 * v.d * v.p);
17}
18
19[ForwardDerivative(diff_f)]
20float2 f(float2 v)
21{
22    return v * v;
23}
24
25DifferentialPair<float2> diff_f(DifferentialPair<float2> v)
26{
27    return diffPair(v.p * v.p, float2(2 * v.d.x * v.p.x, 0.0));
28}
29
30[ForwardDifferentiable]
31float test(float v)
32{
33    return f(v) + f(float2(v, v)).x;
34}
35
36[numthreads(1, 1, 1)]
37void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
38{
39    var p = diffPair(3.0, 1.0);
40    let rs = __fwd_diff(test)(p);
41    outputBuffer[0] = rs.d;
42}