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//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-slang -compute -shaderobj -output-using-type
//TEST(compute, vulkan):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-vk -compute -shaderobj -output-using-type
//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-cuda -compute -shaderobj -output-using-type
struct Buggy<let N : int>
{
float m(float x) { return N * x; }
[BackwardDerivativeOf(m)]
void mDiff(inout DifferentialPair<float> x, float dResult)
{
updateDiff(x, N * dResult);
}
}
[Differentiable]
float test(float x)
{
Buggy<2> b;
return b.m(x);
}
//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
RWStructuredBuffer<float> outputBuffer;
[numthreads(1, 1, 1)]
void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID)
{
var a = diffPair(3.0);
__bwd_diff(test)(a, 1.0);
outputBuffer[dispatchThreadID.x] = a.d;
// CHECK: 2.0
}
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