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//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -output-using-type
//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj -output-using-type
//TEST_INPUT:ubuffer(data=[0 0 0 0 0 0], stride=4):out,name=outputBuffer
RWStructuredBuffer<float> outputBuffer;
typedef DifferentialPair<float> dpfloat;
typedef DifferentialPair<float2> dpfloat2;
typedef DifferentialPair<float3> dpfloat3;
[ForwardDifferentiable]
float diffSqrt(float x)
{
return sqrt(x);
}
[numthreads(1, 1, 1)]
void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID)
{
{
dpfloat dpx = dpfloat(2.0, 1.0);
dpfloat res = __fwd_diff(diffSqrt)(dpx);
outputBuffer[0] = res.p; // Expect: 1.414214
outputBuffer[1] = res.d; // Expect: 0.353553
}
{
dpfloat dpx = dpfloat(100.0, -3.0);
dpfloat res = __fwd_diff(diffSqrt)(dpx);
outputBuffer[2] = res.p; // Expect: 10.000000
outputBuffer[3] = res.d; // Expect: -0.150000
}
{
dpfloat dpx = dpfloat(0.0, 1.0);
dpfloat res = __fwd_diff(diffSqrt)(dpx);
outputBuffer[4] = res.p; // Expect: 0.000000
outputBuffer[5] = res.d; // Expect: 0.000000
}
}
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