[PATCH] D35235: [libc++] Replace __sync_* functions with __libcpp_atomic_* functions

[Weiming Zhao via Phabricator via llvm-commits]

weimingz created this revision.

include/atomic_support.h already handles case for _LIBCPP_HAS_NO_THREADS.
This patch reverts r307595, changes __sync_* to __libcpp_atomic_*,  and adds a wrapper function for __atomic_exchange.


Repository:
  rL LLVM

https://reviews.llvm.org/D35235

Files:
  include/__atomic_support
  include/__refstring
  src/exception.cpp
  src/include/atomic_support.h
  src/locale.cpp
  src/new.cpp
  src/stdexcept.cpp
  src/support/runtime/exception_fallback.ipp
  src/support/runtime/new_handler_fallback.ipp

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