yum-mirror/slang

Making it easier to work with shaders

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

Ellie HermaszewskaInitial version of spirv_asm block (#3151)ef4c9f1f1

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1//TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK):-vk -shaderobj -emit-spirv-directly -output-using-type
2
3//TEST_INPUT:ubuffer(data=[1 2 3 4], stride=4):out,name=outputBuffer
4RWStructuredBuffer<int> outputBuffer;
5
6// CHECK:      4
7// CHECK-NEXT: 8
8// CHECK-NEXT: 12
9// CHECK-NEXT: 16
10
11//
12// This test tests that addresses of variables and inout parameters can be
13// passed into a spirv_asm block
14//
15[numthreads(4, 1, 1)]
16void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
17{
18    int i = dispatchThreadID.x;
19    int n = outputBuffer[i];
20    int r;
21    spirv_asm
22    {
23        OpLoad $$int %n &n;
24        OpConstant $$int %two 2;
25        OpIMul $$int %r $n %two;
26        OpStore &r %r;
27    };
28    foo(r);
29    outputBuffer[i] = r;
30}
31
32func foo(inout int x)
33{
34    spirv_asm
35    {
36        OpLoad $$int %x &x;
37        OpIAdd $$int %added %x %x;
38        OpStore &x %added;
39    };
40}
41