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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:-cuda -compute -shaderobj -output-using-type
//TEST_INPUT:ubuffer(data=[0 0 0 0 0], stride=4):out,name=outputBuffer
RWStructuredBuffer<float> outputBuffer;
typedef DifferentialPair<float> dpfloat;
typedef float.Differential dfloat;
[BackwardDifferentiable]
float test_if_only(float y)
{
float o = y + 1.0f;
if (y > 0.5)
{
o = y * 2.0f;
}
return o;
}
[BackwardDifferentiable]
float test_nested_ifelse(float y)
{
float o = 0.f;
if (y > 0.5)
{
o = y * 2.0f;
}
else
{
if (y > 0.25)
{
o = y * 3.0f + 2.0f;
}
else
{
o = y * 4.0f;
}
}
return o;
}
[numthreads(1, 1, 1)]
void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
{
{
dpfloat dpa = dpfloat(1.0, 0.0);
__bwd_diff(test_nested_ifelse)(dpa, 1.0f);
outputBuffer[0] = dpa.d; // Expect: 2.0
}
{
dpfloat dpa = dpfloat(0.4, 0.0);
__bwd_diff(test_nested_ifelse)(dpa, 1.0f);
outputBuffer[1] = dpa.d; // Expect: 3.0
}
{
dpfloat dpa = dpfloat(0.2, 0.0);
__bwd_diff(test_nested_ifelse)(dpa, 1.0f);
outputBuffer[2] = dpa.d; // Expect: 4.0
}
{
dpfloat dpa = dpfloat(1.0, 0.0);
__bwd_diff(test_if_only)(dpa, 1.0f);
outputBuffer[3] = dpa.d; // Expect: 2.0
}
{
dpfloat dpa = dpfloat(0.4, 0.0);
__bwd_diff(test_if_only)(dpa, 1.0f);
outputBuffer[4] = dpa.d; // Expect: 1.0
}
}
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