Tim Northover 20b9f739eb Atomics: make use of the "cmpxchg weak" instruction.
This also simplifies the IR we create slightly: instead of working out
where success & failure should go manually, it turns out we can just
always jump to a success/failure block created for the purpose. Later
phases will sort out the mess without much difficulty.

llvm-svn: 210917
2014-06-13 16:45:52 +00:00
..
2013-05-20 08:01:34 +00:00
2014-04-03 17:35:22 +00:00
2014-01-29 11:50:56 +00:00
2014-05-12 22:13:07 +00:00
2012-06-11 08:07:26 +00:00
2014-02-16 07:31:05 +00:00
2012-02-28 02:08:50 +00:00
2014-01-11 21:06:00 +00:00
2014-01-29 11:50:56 +00:00
2014-01-29 11:50:56 +00:00
2014-01-29 11:50:56 +00:00
2014-02-16 13:28:39 +00:00
2014-04-25 17:51:25 +00:00
2014-04-03 17:35:22 +00:00
2014-04-03 17:35:22 +00:00
2012-09-29 21:43:49 +00:00
2014-04-03 17:35:22 +00:00
2014-04-03 17:35:22 +00:00
2011-03-15 01:49:08 +00:00
2014-04-03 17:35:22 +00:00
2014-04-23 01:09:29 +00:00
2014-01-24 17:20:08 +00:00
2013-09-04 21:23:23 +00:00
2014-03-25 03:39:39 +00:00
2013-07-18 13:17:26 +00:00