[PATCH] D47553: Add TargetLowering::shouldExpandAtomicToLibCall and query it from AtomicExpandPass

[Alex Bradbury via Phabricator via llvm-commits]

asb abandoned this revision.
asb added a comment.

Thanks Eli and JF for the rapid feedback. I was too quick to try to replicate GCC behaviour without running sanity checking its output.

I've filed a GCC bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86005 and am marking this revision abandoned.


Repository:
  rL LLVM

https://reviews.llvm.org/D47553