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//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-slang -compute -shaderobj -output-using-type
//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-cuda -compute -shaderobj -output-using-type
//TEST(compute, vulkan):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-vk -compute -shaderobj -output-using-type
enum MyEnum { A, B, C };
[BackwardDerivative(mDiff)]
float m<let M : MyEnum>(float x)
{
switch (M)
{
case MyEnum.A:
return x * x;
case MyEnum.B:
return x;
case MyEnum.C:
return 3 * x;
default:
return 0;
}
}
void mDiff<let M : MyEnum>(inout DifferentialPair<float> x, float dResult)
{
switch (M)
{
case MyEnum.A:
updateDiff(x, 2 * dResult * x.p);
break;
case MyEnum.B:
updateDiff(x, dResult);
break;
case MyEnum.C:
updateDiff(x, 3 * dResult);
break;
default:
updateDiff(x, 0);
break;
}
}
[Differentiable]
float test(float x)
{
return m<MyEnum.A>(x);
}
//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
RWStructuredBuffer<float> outputBuffer;
[numthreads(1, 1, 1)]
void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID)
{
var a = diffPair(3.0);
__bwd_diff(test)(a, 1.0);
outputBuffer[dispatchThreadID.x] = a.d;
// CHECK: 6.0
}
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