[PATCH] D116088: [compiler-rt] Implement ARM atomic operations for architectures without SMP support

[Eli Friedman via Phabricator via cfe-commits]

efriedma added a comment.

ldr+op+swp still isn't atomic.  For each point in the code, please try the exercise of "what if my code is interrupted here"?

The only way to use swp to implement general atomic operations is to use a separate spinlock.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D116088/new/

https://reviews.llvm.org/D116088