Commit Graph

1 Commits

Author SHA1 Message Date
Tim Northover 46e58354da ARM: lower "fence singlethread" to a pure compiler barrier.
Single-threaded fences aren't required to provide any synchronization with
other processing elements so there's no need for a DMB. They should still be a
barrier for compiler optimizations though.

llvm-svn: 300904
2017-04-20 21:56:52 +00:00