From 228e71dab7dfa18ece979f4099ec0c7d1e37e5ff Mon Sep 17 00:00:00 2001 From: Yong He Date: Fri, 3 Feb 2023 16:44:33 -0800 Subject: Overhaul `transposeParameterBlock` to support `inout` params. (#2621) * Overhaul `transposeParameterBlock` to support `inout` params. * Small bug fixes. * Bug fix on differentiable intrinsic specialization. * Fixes. * Run autodiff tests on CPU. * Clean up. * More bug fixes., * Add test coverage on inout param. * Fix language server hinting for transcribed mutable params. --------- Co-authored-by: Yong He --- tests/autodiff-dstdlib/dstdlib-elementary-bwd.slang | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) (limited to 'tests/autodiff-dstdlib/dstdlib-elementary-bwd.slang') diff --git a/tests/autodiff-dstdlib/dstdlib-elementary-bwd.slang b/tests/autodiff-dstdlib/dstdlib-elementary-bwd.slang index ce282eb77..379e2c3ef 100644 --- a/tests/autodiff-dstdlib/dstdlib-elementary-bwd.slang +++ b/tests/autodiff-dstdlib/dstdlib-elementary-bwd.slang @@ -1,7 +1,8 @@ //TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -output-using-type //TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj -output-using-type +//TEST(compute):COMPARE_COMPUTE_EX:-cpu -compute -output-using-type -shaderobj -//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer +//TEST_INPUT:ubuffer(data=[0 0 0 0 0 0], stride=4):out,name=outputBuffer RWStructuredBuffer outputBuffer; typedef DifferentialPair dpfloat; @@ -14,6 +15,12 @@ float diffExp(float x) return exp(x); } +[BackwardDifferentiable] +float diffSin(float x) +{ + return sin(x); +} + [numthreads(1, 1, 1)] void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID) { @@ -30,4 +37,10 @@ void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID) outputBuffer[2] = dpx.p; // Expect: 0.000000 outputBuffer[3] = dpx.d; // Expect: 1.000000 } + + { + dpfloat dpx = dpfloat(float.getPi(), 1.0); + __bwd_diff(diffSin)(dpx, 1.0); + outputBuffer[4] = dpx.d; // Expect: -1.000000 + } } -- cgit v1.2.3