[PATCH] D137524: clang/AMDGPU: Emit atomicrmw for atomic_inc/dec builtins

[Jon Chesterfield via Phabricator via cfe-commits]

JonChesterfield added a comment.

I don't recognize atomicrmw udec_wrap and can't find it in https://llvm.org/docs/LangRef.html#atomicrmw-instruction. I do vaguely recall the semantics of these builtins (well, the instructions they target) being surprising, Do you know where the uinc_wrao etc were introduced?


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  https://reviews.llvm.org/D137524/new/

https://reviews.llvm.org/D137524