Eli Friedman 17a47b915a [libc++abi] Replace __sync_* functions with __libcpp_atomic_* functions.
This is basically part 2 of r313694.

It's a little unfortunate that I had to copy-paste atomic_support.h,
but I don't really see any alternative.

The refstring.h changes are the same as the libcxx changes in r313694.

llvm-svn: 330162
2018-04-16 22:00:14 +00:00
..
2018-01-17 22:07:09 +00:00
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