yum-mirror/slang

Making it easier to work with shaders

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

Yong HeOverhaul `transposeParameterBlock` to support `inout` params. (#2621)228e71dab

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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:-cpu -compute -output-using-type -shaderobj
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;
9typedef float.Differential dfloat;
10
11[BackwardDifferentiable]
12float test_multi_return(float y)
13{
14    if (y > 0.6)
15    {
16        if (y > 0.8)
17        {
18            return y * 10.0f;
19        }
20        else
21        {
22            return y * 4.0f;
23        }
24    }
25    return y * 6.0f;
26}
27
28[numthreads(1, 1, 1)]
29void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
30{
31    {
32        dpfloat dpa = dpfloat(1.0, 0.0);
33
34        __bwd_diff(test_multi_return)(dpa, 1.0f);
35        outputBuffer[0] = dpa.d; // Expect: 10.0
36    }
37
38    {
39        dpfloat dpa = dpfloat(0.4, 0.0);
40        
41        __bwd_diff(test_multi_return)(dpa, 1.0f);
42        outputBuffer[1] = dpa.d; // Expect: 6.0
43    }
44
45    {
46        dpfloat dpa = dpfloat(0.7, 0.0);
47        
48        __bwd_diff(test_multi_return)(dpa, 1.0f);
49        outputBuffer[2] = dpa.d; // Expect: 4.0
50    }
51}