[PATCH] D86510: [compiler-rt] Fix atomic support functions on 32-bit architectures

[Alexander Richardson via Phabricator via llvm-commits]

arichardson updated this revision to Diff 289985.
arichardson added a comment.

Use the lock-free code when

  a) atomic ops of that size are always lock-free
  b) aligned atomics ops are lock-free and the pointer is aligned

Note: the optimized functions assume that the pointer is aligned since the argument is a uint64_t, etc. If this is not correct the signature should be changed to use void* instead.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D86510/new/

https://reviews.llvm.org/D86510

Files:
  compiler-rt/lib/builtins/atomic.c

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