Revision 5902acdabc4445a65741a7a6a3a95f223e301059 authored by Yong He on 23 January 2024, 07:19:40 UTC, committed by GitHub on 23 January 2024, 07:19:40 UTC
Co-authored-by: Yong He <yhe@nvidia.com>
1 parent fec9c42
existential-1.slang
// Test calling differentiable function through dynamic dispatch.
//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj -output-using-type
//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -output-using-type
//TEST_INPUT:ubuffer(data=[0 0 0 0 0], stride=4):out,name=outputBuffer
RWStructuredBuffer<float> outputBuffer;
[anyValueSize(16)]
interface IInterface : IDifferentiable
{
[Differentiable]
float calc(float x);
}
struct A : IInterface
{
int data1;
__init(int data1) { this.data1 = data1; }
[Differentiable]
float calc(float x) { return x * x * x * data1; }
};
struct B : IInterface
{
int data1;
int data2;
__init(int data1, int data2) { this.data1 = data1; this.data2 = data2; }
[Differentiable]
float calc(float x) { return x * x * data1 * data2; }
};
[Differentiable]
float doThing(IInterface obj, float x)
{
return obj.calc(x);
}
[Differentiable]
float f(uint id, float x)
{
IInterface obj;
if (id == 0)
obj = no_diff(A(2));
else
obj = no_diff(B(2, 3));
return doThing(obj, x);
}
//TEST_INPUT: type_conformance A:IInterface = 0
//TEST_INPUT: type_conformance B:IInterface = 1
[numthreads(1, 1, 1)]
void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
{
outputBuffer[0] = fwd_diff(f)(dispatchThreadID.x, DifferentialPair<float>(1.0, 2.0)).d; // A.calc, expect 12
outputBuffer[1] = fwd_diff(f)(dispatchThreadID.x + 1, DifferentialPair<float>(1.5, 1.0)).d; // B.calc, expect 18
{
var dpx = diffPair(1.0);
bwd_diff(f)(dispatchThreadID.x, dpx, 2.0); // A.calc, expect 12
outputBuffer[2] = dpx.d;
}
{
var dpx = diffPair(1.5);
bwd_diff(f)(dispatchThreadID.x + 1, dpx, 1.0); // B.calc, expect 18
outputBuffer[3] = dpx.d;
}
}
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