yum-mirror/slang

Making it easier to work with shaders

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

Harsh Aggarwal (NVIDIA)Enable CUDA Test Enablement - Batch 1: Autodiff Tests (1-16) (#8139)c3df36043

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1//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK): -slang -compute -shaderobj -output-using-type
2//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK): -slang -compute -shaderobj -output-using-type -cuda
3
4//TEST_INPUT:ubuffer(data=[0 0 0 0 0], stride=4):out,name=outputBuffer
5RWStructuredBuffer<float> outputBuffer;
6
7// A general test for differentiable, force-inlined functions.
8//
9// This test was added to expose a bug in legalizeDefUse() where an IRVar can be be hoisted to 
10// after its uses (when it is already in the same block, but gets reinserted), and cause 
11// a validation bug.
12// 
13
14__generic<T : __BuiltinFloatingPointType, let R : int, let C : int>
15[ForceInline, PreferRecompute, Differentiable]
16vector<T, R> column(matrix<T, R, C> m, int i) {
17    vector<T, R> result;
18    [ForceUnroll]
19    for (int j = 0; j < R; j++) {
20        result[j] = m[j][i];
21    }
22    return result;
23}
24
25struct Data {
26    float4x4 m;
27    float foo() {
28        return length(column(m, 0).xyz);
29    }
30};
31
32[numthreads(1, 1, 1)]
33void computeMain(uint3 id : SV_DispatchThreadID)
34{
35    Data data;
36    // Initialize matrix with some values
37    data.m = float4x4(
38        3.0, 0.0, 0.0, 0.0,
39        0.0, 5.0, 0.0, 0.0,
40        0.0, 0.0, 7.0, 0.0,
41        0.0, 0.0, 0.0, 11.0);
42    
43    // Calculate and store result
44    outputBuffer[0] = data.foo();
45    
46    // CHECK: type: float
47    // CHECK: 3.0
48}