From 25affe8e724fe4ee60a3b8ec2c494926930ba59f Mon Sep 17 00:00:00 2001 From: winmad Date: Mon, 14 Nov 2022 16:43:55 -0800 Subject: Adding some math functions and their derivatives (#2497) --- tests/autodiff-dstdlib/dstdlib-unary.slang | 40 ++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 tests/autodiff-dstdlib/dstdlib-unary.slang (limited to 'tests/autodiff-dstdlib/dstdlib-unary.slang') diff --git a/tests/autodiff-dstdlib/dstdlib-unary.slang b/tests/autodiff-dstdlib/dstdlib-unary.slang new file mode 100644 index 000000000..4d869996d --- /dev/null +++ b/tests/autodiff-dstdlib/dstdlib-unary.slang @@ -0,0 +1,40 @@ +//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 +RWStructuredBuffer outputBuffer; + +typedef DifferentialPair dpfloat; + +[ForwardDifferentiable] +float f(float x) +{ + return exp(x); +} + +[ForwardDifferentiable] +float g(float x) +{ + return sin(x); +} + +[ForwardDifferentiable] +float h(float x) +{ + return cos(x); +} + +[numthreads(1, 1, 1)] +void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID) +{ + { + dpfloat dpa = dpfloat(2.0, 1.0); + + outputBuffer[0] = f(dpa.p); // Expect: 7.389056 + outputBuffer[1] = __fwd_diff(f)(dpa).d; // Expect: 7.389056 + outputBuffer[2] = g(dpa.p); // Expect: 0.909297 + outputBuffer[3] = __fwd_diff(g)(dpa).d; // Expect: -0.416146 + outputBuffer[4] = h(dpa.p); // Expect: -0.416146 + outputBuffer[5] = __fwd_diff(h)(dpa).d; // Expect: -0.909297 + } +} -- cgit v1.2.3