diff options
Diffstat (limited to 'tests/autodiff-dstdlib/dstdlib-max.slang')
| -rw-r--r-- | tests/autodiff-dstdlib/dstdlib-max.slang | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/tests/autodiff-dstdlib/dstdlib-max.slang b/tests/autodiff-dstdlib/dstdlib-max.slang index d28b17e06..026914c8c 100644 --- a/tests/autodiff-dstdlib/dstdlib-max.slang +++ b/tests/autodiff-dstdlib/dstdlib-max.slang @@ -1,20 +1,20 @@ //TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -output-using-type //TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj -output-using-type -//TEST_INPUT:ubuffer(data=[0 0 0 0 0 0], stride=4):out,name=outputBuffer +//TEST_INPUT:ubuffer(data=[0 0 0 0 0 0 0 0 0 0], stride=4):out,name=outputBuffer RWStructuredBuffer<float> outputBuffer; typedef DifferentialPair<float> dpfloat; typedef DifferentialPair<float2> dpfloat2; -[ForwardDifferentiable] +[BackwardDifferentiable] float diffMax(float x, float y) { return max(x, y); } -[ForwardDifferentiable] -float2 diffMax2(float2 x, float2 y) +[BackwardDifferentiable] +float2 diffMax(float2 x, float2 y) { return max(x, y); } @@ -33,10 +33,20 @@ void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID) { dpfloat2 dpx = dpfloat2(float2(-3.0, 4.0), float2(-1.0, -1.0)); dpfloat2 dpy = dpfloat2(float2(1.0, 2.0), float2(2.0, 2.0)); - dpfloat2 res = __fwd_diff(diffMax2)(dpx, dpy); + dpfloat2 res = __fwd_diff(diffMax)(dpx, dpy); outputBuffer[2] = res.p[0]; // Expect: 1.000000 outputBuffer[3] = res.d[0]; // Expect: 2.000000 outputBuffer[4] = res.p[1]; // Expect: 4.000000 outputBuffer[5] = res.d[1]; // Expect: -1.000000 } + + { + dpfloat2 dpx = dpfloat2(float2(2.0, 3.0), float2(0.0, 0.0)); + dpfloat2 dpy = dpfloat2(float2(5.0, 1.0), float2(0.0, 0.0)); + __bwd_diff(diffMax)(dpx, dpy, float2(1.0, 2.0)); + outputBuffer[6] = dpx.d[0]; // Expect: 0.000000 + outputBuffer[7] = dpx.d[1]; // Expect: 2.000000 + outputBuffer[8] = dpy.d[0]; // Expect: 1.000000 + outputBuffer[9] = dpy.d[1]; // Expect: 0.000000 + } } |