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//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj -output-using-type
//TEST(compute):COMPARE_COMPUTE_EX:-cuda -compute -shaderobj -output-using-type
//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -output-using-type
//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
RWStructuredBuffer<float> outputBuffer;
typedef DifferentialPair<float> dpfloat;
struct A : IDifferentiable
{
float x;
no_diff float y;
}
[BackwardDifferentiable]
float f(A obj)
{
return obj.y * obj.x * obj.x + obj.y * obj.y;
}
[numthreads(1, 1, 1)]
void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
{
A a = {2.0, 3.0};
var p = diffPair(a);
let rs = __bwd_diff(f)(p, 1.0);
outputBuffer[0] = p.d.x;
}
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