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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_INPUT:ubuffer(data=[0 0 0 0 0], stride=4):out,name=outputBuffer
RWStructuredBuffer<float> outputBuffer;
struct D : IDifferentiable
{
float n;
float m;
}
[BackwardDifferentiable]
void g(D d, int i, out D outArray[1][2])
{
outArray[0][0].m = d.n;
outArray[0][0].n = d.m * 3.0f + 1.0;
outArray[0][i].m = d.n * d.n;
outArray[0][i].n = d.m * 4.0f + 1.0;
}
[BackwardDifferentiable]
void f(D d, int i, out D outArray[1][2])
{
g(d, 0, outArray);
g(d, i, outArray);
}
[numthreads(1, 1, 1)]
void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
{
D d = { 1.0, 2.0 };
var dpd = diffPair(d);
D.Differential tmp[1][2] = { { { 1.0, 1.0 }, { 1.0, 1.0 } } };
__bwd_diff(f)(dpd, 1, tmp);
outputBuffer[0] = dpd.d.m;
outputBuffer[1] = dpd.d.n;
}
[BackwardDifferentiable]
void inner(float x, out float y)
{
y = 2 * x;
}
[BackwardDifferentiable]
void outter(float x, out float y)
{
inner(x, y);
inner(x, y);
}
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