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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 assign(inout float rs, float v)
{
rs = v;
}
[BackwardDifferentiable]
void f(inout float p, float x)
{
assign(p, x);
}
[numthreads(1, 1, 1)]
void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
{
var x = diffPair(5.0, 0.0);
var pp = diffPair(1.0, 3.0);
__bwd_diff(f)(pp, x);
outputBuffer[0] = pp.p; // should be 1, since bwd_diff does not write back new primal val.
outputBuffer[1] = x.d; // 3
}
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