[PATCH] D120026: [ARM] Fix ARM backend to correctly use atomic expansion routines.

[Alan Phipps via Phabricator via llvm-commits]

alanphipps added a comment.

Interesting, this commit results in several testing timeouts in our downstream compiler for several C++ compliance tests (ACE, plumhall, perennial) for Cortex-M0/M0plus only.  I confess I don't understand the nature of this commit or how it would impact runtime here, other than you indicate that this could impact Cortex-M0.  Do you have any pointers as to what I could verify here?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D120026/new/

https://reviews.llvm.org/D120026