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| author | Tim Northover <tnorthover@apple.com> | 2014-06-13 16:45:52 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2014-06-13 16:45:52 +0000 |
| commit | 33fe993f2ec3a146e5954db14aa9a751141677f0 (patch) | |
| tree | de28a35ca3db99ec629451e0fa50509093d765e3 /tools/llvm-cov/llvm-cov.cpp | |
| parent | 6b3ed2b8214778b8eedae81be5193d1b89c49a66 (diff) | |
| download | llvm-33fe993f2ec3a146e5954db14aa9a751141677f0.tar.gz llvm-33fe993f2ec3a146e5954db14aa9a751141677f0.tar.bz2 llvm-33fe993f2ec3a146e5954db14aa9a751141677f0.tar.xz | |
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
Diffstat (limited to 'tools/llvm-cov/llvm-cov.cpp')
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