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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:-cpu -compute -output-using-type -shaderobj
//TEST_INPUT:ubuffer(data=[0 0 0 0 0], stride=4):out,name=outputBuffer
RWStructuredBuffer<float> outputBuffer;
[BackwardDifferentiable]
void g(float x, out float y)
{
y = (x + 1) * (x + 1);
}
[BackwardDifferentiable]
void f(float x, out float y)
{
g(x, y);
g(x, y);
}
[numthreads(1, 1, 1)]
void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
{
var x = diffPair(5.0);
float yDiffOut = 1.0;
__bwd_diff(f)(x, yDiffOut);
outputBuffer[0] = x.p; // should be 5, since bwd_diff does not write back new primal val.
outputBuffer[1] = x.d; // 12.0
}
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