From 051607368e8d3dd55d2ad2b2200ef656244ec70d Mon Sep 17 00:00:00 2001 From: Yong He Date: Fri, 17 Feb 2023 13:23:27 -0800 Subject: Fixed crash when lowering IR for no_diff struct member. (#2658) * Fixed crash when lowering IR for no_diff struct member. * Improve `setInsertBeforeOrdinaryInst` and `setInsertAfterOrdinaryInst`. --------- Co-authored-by: Yong He --- tests/autodiff/no-diff-member.slang | 28 ++++++++++++++++++++++++ tests/autodiff/no-diff-member.slang.expected.txt | 5 +++++ 2 files changed, 33 insertions(+) create mode 100644 tests/autodiff/no-diff-member.slang create mode 100644 tests/autodiff/no-diff-member.slang.expected.txt (limited to 'tests') diff --git a/tests/autodiff/no-diff-member.slang b/tests/autodiff/no-diff-member.slang new file mode 100644 index 000000000..a91e84bf4 --- /dev/null +++ b/tests/autodiff/no-diff-member.slang @@ -0,0 +1,28 @@ +//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], stride=4):out,name=outputBuffer +RWStructuredBuffer outputBuffer; + +typedef DifferentialPair dpfloat; + +struct A : IDifferentiable +{ + float x; + no_diff float y; +} + +[BackwardDifferentiable] +float f(A obj) +{ + return obj.y * obj.x * obj.x + obj.y * obj.y; +} + +[numthreads(1, 1, 1)] +void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID) +{ + A a = {2.0, 3.0}; + var p = diffPair(a); + let rs = __bwd_diff(f)(p, 1.0); + outputBuffer[0] = p.d.x; +} diff --git a/tests/autodiff/no-diff-member.slang.expected.txt b/tests/autodiff/no-diff-member.slang.expected.txt new file mode 100644 index 000000000..31af8a224 --- /dev/null +++ b/tests/autodiff/no-diff-member.slang.expected.txt @@ -0,0 +1,5 @@ +type: float +12.000000 +0.000000 +0.000000 +0.000000 \ No newline at end of file -- cgit v1.2.3