[PATCH] D144999: [RFC][MC][MachO]Only emits compact-unwind format for "canonical" personality symbols. For the rest, use DWARFs.

Thu Mar 2 13:32:14 PST 2023

int3 added a comment.

> For __gxx_personality_v0 and __objc_personality_v0 (but not __gcc_personality_v0), emit only compact unwind (or only DWARF where compact-unwind isn't possible) for each function -- not both. (This saves object-file size/build time for the most common languages).

Does Swift use a personality function? I'm concerned that we may be de-optimizing a very common use case. However (from looking a small test program) it seems that maybe it doesn't...

Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D144999/new/

https://reviews.llvm.org/D144999