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 →
1.3 KiB31 linesraw
1//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -output-using-type
2//TEST(compute):COMPARE_COMPUTE_EX:-slang -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], stride=4):out,name=outputBuffer
6RWStructuredBuffer<float> outputBuffer;
7
8typedef DifferentialPair<float2x2> dpmat2;
9
10[BackwardDifferentiable]
11float2x2 diffMul(float2x2 a, float2x2 b)
12{
13    return mul(a, b);
14}
15
16[numthreads(1, 1, 1)]
17void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID)
18{
19    dpmat2 dpa = dpmat2(float2x2(1.0, 2.0, 3.0, 4.0), float2x2(0.0, 0.0, 0.0, 0.0));
20    dpmat2 dpb = dpmat2(float2x2(5.0, 6.0, 7.0, 8.0), float2x2(0.0, 0.0, 0.0, 0.0));
21    float2x2 dOut = float2x2(1.0, -2.0, -3.0, 4.0);
22    __bwd_diff(diffMul)(dpa, dpb, dOut);
23    outputBuffer[0] = dpa.d[0][0]; // Expect: -7.000000
24    outputBuffer[1] = dpa.d[0][1]; // Expect: -9.000000
25    outputBuffer[2] = dpa.d[1][0]; // Expect: 9.000000
26    outputBuffer[3] = dpa.d[1][1]; // Expect: 11.000000
27    outputBuffer[4] = dpb.d[0][0]; // Expect: -8.000000
28    outputBuffer[5] = dpb.d[0][1]; // Expect: 10.000000
29    outputBuffer[6] = dpb.d[1][0]; // Expect: -10.000000
30    outputBuffer[7] = dpb.d[1][1]; // Expect: 12.000000
31}