blob: 9379df4cf66a095e378224f8985337f4a482d3af (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
//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;
typedef DifferentialPair<float> dpfloat;
typedef float.Differential dfloat;
[BackwardDifferentiable]
float test_simple_loop(float y)
{
float t = y;
if (y > 0.5)
{
for (int i = 0; i < 3; i++)
{
t = t * t;
}
}
else
{
t = t * 10.f;
}
return t;
}
[numthreads(1, 1, 1)]
void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
{
{
dpfloat dpa = dpfloat(1.0, 0.0);
__bwd_diff(test_simple_loop)(dpa, 1.0f);
outputBuffer[0] = dpa.d; // Expect: 8.0
}
{
dpfloat dpa = dpfloat(0.4, 0.0);
__bwd_diff(test_simple_loop)(dpa, 1.0f);
outputBuffer[1] = dpa.d; // Expect: 10.0
}
}
|
