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

master
branchesmasterall refs →
2.7 KiB93 linesraw
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 0 0 0 0 0 0], stride=4):out,name=outputBuffer
6RWStructuredBuffer<float> outputBuffer;
7
8typedef DifferentialPair<float3> dpfloat3;
9typedef float3.Differential dfloat3;
10
11typedef DifferentialPair<float2> dpfloat2;
12typedef float2.Differential dfloat2;
13
14[BackwardDifferentiable]
15float2 test_reshape(float3 x, float3 y, int i, int j)
16{
17    float2x3 m = float2x3(x, y);
18    let mSmall = float2x2(m);
19    return mSmall[i] + mSmall[j];
20}
21
22[BackwardDifferentiable]
23float3 test_vectorFromScalar(float x)
24{
25    return float3(x);
26}
27
28[BackwardDifferentiable]
29float3x3 test_matrixFromScalar(float x)
30{
31    return float3x3(x);
32}
33
34[BackwardDifferentiable]
35float2x2 test_matrixConstruct(float a, float b, float c, float d)
36{
37    return float2x2(a, b, c, d);
38}
39
40[BackwardDifferentiable]
41float3 test_makeVector(float x, float2 y)
42{
43    return float3(x, y);
44}
45
46[numthreads(1, 1, 1)]
47void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
48{
49    {
50        dpfloat3 dpx = dpfloat3(float3(2.0, 3.0, 4.0), float3(0.0, 0.0, 0.0));
51        dpfloat3 dpy = dpfloat3(float3(1.5, 2.5, 3.5), float3(0.0, 0.0, 0.0));
52
53        __bwd_diff(test_reshape)(dpx, dpy, 0, 1, dfloat2(1.0, 2.0));
54        outputBuffer[0] = dpx.d.y; // Expect: 2
55        outputBuffer[1] = dpy.d.y; // Expect: 2
56    }
57
58    {
59        DifferentialPair<float> dpx = diffPair(1.0, 0.0);
60
61        __bwd_diff(test_vectorFromScalar)(dpx, dfloat3(2.0));
62        outputBuffer[2] = dpx.d; // Expect: 6.0
63    }
64
65    {
66        DifferentialPair<float> dpx = diffPair(1.0, 0.0);
67
68        __bwd_diff(test_matrixFromScalar)(dpx, float3x3(1.0));
69        outputBuffer[3] = dpx.d; // Expect: 9.0
70    }
71    {
72        DifferentialPair<float> dpa = diffPair(1.0, 0.0);
73        DifferentialPair<float> dpb = diffPair(1.0, 0.0);
74        DifferentialPair<float> dpc = diffPair(1.0, 0.0);
75        DifferentialPair<float> dpd = diffPair(1.0, 0.0);
76
77        __bwd_diff(test_matrixConstruct)(dpa, dpb, dpc, dpd, float2x2(1.0, 2.0, 3.0, 4.0));
78        outputBuffer[4] = dpa.d; // Expect: 1.0
79        outputBuffer[5] = dpb.d; // Expect: 2.0
80        outputBuffer[6] = dpc.d; // Expect: 3.0
81        outputBuffer[7] = dpd.d; // Expect: 4.0
82    }
83    {
84        DifferentialPair<float> dpx = diffPair(1.0, 0.0);
85        dpfloat2 dpy = dpfloat2(float2(1.5, 2.5), float2(0.0, 0.0));
86
87        __bwd_diff(test_makeVector)(dpx, dpy, float3(1.0, 1.5, 2.0));
88        outputBuffer[8] = dpx.d; // Expect: 1.0
89        outputBuffer[9] = dpy.d.x; // Expect: 1.5
90        outputBuffer[10] = dpy.d.y; // Expect: 2.0
91    }
92
93}