| commit | 33fe993f2ec3a146e5954db14aa9a751141677f0 | [log] [tgz] |
|---|---|---|
| author | Tim Northover <tnorthover@apple.com> | Fri Jun 13 16:45:52 2014 +0000 |
| committer | Tim Northover <tnorthover@apple.com> | Fri Jun 13 16:45:52 2014 +0000 |
| tree | de28a35ca3db99ec629451e0fa50509093d765e3 | |
| parent | 6b3ed2b8214778b8eedae81be5193d1b89c49a66 [diff] |
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