blob: 804262795ed87902fcd5aab2c7a5c7271ce7271f (
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
48
49
50
51
52
53
54
55
56
57
|
//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], stride=4):out,name=outputBuffer
RWStructuredBuffer<float> outputBuffer;
struct A
{
float x;
float f(float v)
{
return v * v;
}
}
extension A
{
[ForwardDerivativeOf(f)]
DifferentialPair<float> diff_f(DifferentialPair<float> v)
{
return diffPair(v.p * v.p, v.p * v.d * 2.0);
}
}
struct Foo<T : IDifferentiable>
{
T value;
T doThing() { return value; }
}
extension<T : IDifferentiable> Foo<T>
{
[ForwardDerivativeOf(doThing)]
[NoDiffThis]
DifferentialPair<T> diff_doThing()
{
return diffPair(value, T.dzero());
}
}
[ForwardDifferentiable]
float test(Foo<float> obj, float v)
{
return obj.doThing() * v;
}
[numthreads(1, 1, 1)]
void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
{
Foo<float> a = {0.0};
var p = diffPair(3.0, 1.0);
let rs = __fwd_diff(test)(a, p);
outputBuffer[0] = rs.d;
}
|
