|author||Tim Northover <email@example.com>||2014-06-13 16:45:52 +0000|
|committer||Tim Northover <firstname.lastname@example.org>||2014-06-13 16:45:52 +0000|
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210917 91177308-0d34-0410-b5e6-96231b3b80d8
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