[Openmp-commits] [PATCH] D102107: [OpenMP] Codegen aggregate for outlined function captures

Jon Chesterfield via Phabricator via Openmp-commits openmp-commits at lists.llvm.org
Tue Jun 6 06:24:35 PDT 2023

JonChesterfield added a comment.

I'm trying to pick up the context for this and D95976 <https://reviews.llvm.org/D95976>. Superficially it looks like lowering variadic functions in the compiler could be used to simplify quite a lot of this, @jdoerfert there's a comment from some time ago which suggests that this code path was originally a workaround for lack of variadics.

I'm currently debugging an IR pass that eliminates variadic calls in the hope of using that all the time on amdgpu. I think it could be adapted to patch these calls on the fly for nvptx as well if we added it to the openmp codegen pipeline, need to see whether the function pointer interacts well with the recent specialisation pass.

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