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//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-slang -compute -output-using-type
//TEST(compute,vulkan):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-vk -slang -compute -output-using-type
//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-cuda -compute -shaderobj -output-using-type
[Differentiable]
Optional<float> sumSquare(Optional<float> a, Optional<float> b)
{
if (let x = a)
{
if (let y = b)
{
return x * x + y * y;
}
else
{
return x * x;
}
}
else if (let y = b)
{
return y * y;
}
return none;
}
//TEST_INPUT:ubuffer(data=[0 0 0], stride=4):out,name=outputBuffer
RWStructuredBuffer<float> outputBuffer;
[numthreads(1,1,1)]
void computeMain()
{
var dpa = diffPair<Optional<float>>(3.0f, none);
var dpb = diffPair<Optional<float>>(4.0f, none);
bwd_diff(sumSquare)(dpa, dpb, 1.0f);
outputBuffer[0] = -1;
// CHECK: 14.0
if (dpa.d.hasValue && dpb.d.hasValue)
outputBuffer[0] = dpa.d.value + dpb.d.value;
// CHECK: 1.0
dpa = diffPair<Optional<float>>(3.0f, none);
dpb = diffPair<Optional<float>>(4.0f, none);
bwd_diff(sumSquare)(dpa, dpb, none);
if (dpa.d.value == 0.0 && dpb.d.value == 0.0)
{
outputBuffer[1] = 1.0f;
}
// CHECK: 100.0
dpa = diffPair<Optional<float>>(none, none);
dpb = diffPair<Optional<float>>(4.0f, none);
bwd_diff(sumSquare)(dpa, dpb, 1.0);
if (dpa.d == none)
{
outputBuffer[2] = 100.0f;
}
}
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