blob: 4b17add91e6c84e9dc304af8a34e8876e368e2f9 (
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
|
//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;
struct A : IDifferentiable
{
float x;
float y;
};
typedef DifferentialPair<A> dpA;
[BackwardDifferentiable]
A f(A a)
{
A aout;
aout.y = 2 * a.x;
aout.x = 5 * a.x;
return aout;
}
[numthreads(1, 1, 1)]
void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
{
{
A a = {1.0, 2.0};
A.Differential azero = {0.0, 0.0};
dpA dpa = dpA(a, azero);
A.Differential dout = {1.0, 1.0};
__bwd_diff(f)(dpa, dout);
outputBuffer[0] = dpa.d.x; // Expect: 7
outputBuffer[1] = dpa.d.y; // Expect: 0
}
}
|
