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//TEST(compute):COMPARE_COMPUTE: -compute -shaderobj -output-using-type
//TEST(compute, vulkan):COMPARE_COMPUTE: -vk -compute -shaderobj -output-using-type
//TEST(compute):COMPARE_COMPUTE:-slang -shaderobj -mtl -output-using-type
// Test that matrix swizzle writes work correctly
// Matrix swizzles can either be one or zero indexed
// Reference: https://docs.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-per-component-math
//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
RWStructuredBuffer<float2x2> outputBuffer;
struct MySubscriptable
{
float2x2 m;
__subscript() -> float2x2
{
get { return m; }
set { m = newValue; }
}
};
[numthreads(1, 1, 1)]
void computeMain(uint tid : SV_GroupIndex)
{
MySubscriptable s;
s.m = float2x2(0,0,0,0);
// _ 1
// 4 5
s[]._12_21_22 = float3(1, 4, 5);
// 2 1
// 4 3
s[]._m00_m11 = float2(2, 3);
outputBuffer[tid] = s.m;
}
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