yum-mirror/slang

Making it easier to work with shaders

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

CopilotAdd warning for comma operators used outside for-loops and expand expressions in legacy mode (#7984)9ed7b5264

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1// comma-operator.slang
2
3//TEST(compute):COMPARE_COMPUTE:-cpu -shaderobj -xslang -Wno-41024
4//TEST(compute):COMPARE_COMPUTE: -shaderobj -xslang -Wno-41024
5
6// Test that the "comma operator" behaves as expected
7
8// We will also include a cross-compilation test just to
9// confirm that the generated SPIR-V (and by extension DXIL/DXBC)
10// doesn't include a subroutine defintion/call for `operator,`
11
12//TEST:CROSS_COMPILE:-target spirv-assembly -entry computeMain -stage compute -Wno-41024
13
14int test(int inVal)
15{
16	int a = inVal;
17
18	// We expect the left operand to `operator,` to be
19	// evaluated before the right operand, and for the
20	// result to be the value of the right operand
21	//
22	return a*=2, a+1;
23}
24
25//TEST_INPUT:ubuffer(data=[0 1 2 3], stride=4):out,name=outputBuffer
26RWStructuredBuffer<int> outputBuffer;
27
28[numthreads(4, 1, 1)]
29void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
30{
31	uint tid = dispatchThreadID.x;
32	int inVal = outputBuffer[tid];
33	int outVal = test(inVal);
34	outputBuffer[tid] = outVal;
35}