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 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_simple_switch(float y, int i)
13{
14    float o;
15    switch (i)
16    {
17        case 0:
18        case 1:
19            o = y * 2.0;
20            break;
21        
22        case 2:
23            o = y * 3.0;
24            break;
25        
26        default:
27            o = y;
28    }
29
30    return o;
31}
32
33[numthreads(1, 1, 1)]
34void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
35{
36    {
37        dpfloat dpa = dpfloat(1.0, 0.0);
38
39        __bwd_diff(test_simple_switch)(dpa, 1, 1.0f);
40        outputBuffer[0] = dpa.d; // Expect: 2.0
41    }
42
43    {
44        dpfloat dpa = dpfloat(0.4, 0.0);
45        
46        __bwd_diff(test_simple_switch)(dpa, 2, 1.0f);
47        outputBuffer[1] = dpa.d; // Expect: 3.0
48    }
49
50    {
51        dpfloat dpa = dpfloat(1.0, 0.0);
52
53        __bwd_diff(test_simple_switch)(dpa, 3, 1.0f);
54        outputBuffer[2] = dpa.d; // Expect: 1.0
55    }
56}