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//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj -output-using-type
//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -output-using-type
//TEST(compute):COMPARE_COMPUTE_EX:-cuda -compute -shaderobj -output-using-type
//TEST_INPUT:ubuffer(data=[0], stride=4):out,name=outputBuffer
RWStructuredBuffer<float> outputBuffer;
[ForwardDerivative(diff_f)]
float f(float v)
{
return v * v;
}
DifferentialPair<float> diff_f(DifferentialPair<float> v)
{
return diffPair(v.p * v.p, 2 * v.d * v.p);
}
[ForwardDerivative(diff_f)]
float2 f(float2 v)
{
return v * v;
}
DifferentialPair<float2> diff_f(DifferentialPair<float2> v)
{
return diffPair(v.p * v.p, float2(2 * v.d.x * v.p.x, 0.0));
}
[ForwardDifferentiable]
float test(float v)
{
return f(v) + f(float2(v, v)).x;
}
[numthreads(1, 1, 1)]
void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
{
var p = diffPair(3.0, 1.0);
let rs = __fwd_diff(test)(p);
outputBuffer[0] = rs.d;
}
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