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//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
//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;
struct SpatialVertex : IDifferentiable
{
float x;
};
struct MaterialVertex
{
float x;
};
//TEST_INPUT:ubuffer(data=[2.0 2.0 2.0 2.0 2.0], stride=4):name=pathVertices
RWStructuredBuffer<MaterialVertex> pathVertices;
[Differentiable]
SpatialVertex transform(float p, MaterialVertex m)
{
return { p * m.x };
}
[Differentiable]
float test_simple_loop(float y)
{
SpatialVertex vShade[2];
int pathLength = 1;
[ForceUnroll]
for (int i = 0; i < 2; i++)
{
if (!(pathVertices[i].x > 1.4))
{
pathLength = i;
break;
}
vShade[i] = transform(y, pathVertices[i]);
}
return vShade[0].x + vShade[1].x;
}
[numthreads(1, 1, 1)]
void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
{
{
dpfloat dpy = dpfloat(1.0, 1.0);
var dpresult = fwd_diff(test_simple_loop)(dpy);
outputBuffer[0] = pathVertices[0].x; // CHECK: 2.0
outputBuffer[1] = dpresult.d; // CHECK: 4.0
}
}
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