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| author | Torok Edwin <edwintorok@gmail.com> | 2009-10-19 11:00:58 +0000 |
|---|---|---|
| committer | Torok Edwin <edwintorok@gmail.com> | 2009-10-19 11:00:58 +0000 |
| commit | 6602922878ca84f5adf86dc299b6fb32086a79f8 (patch) | |
| tree | 2c0bbca15731217a866ea47f80e4ed7e97db15b4 /lib/Transforms/Utils/BasicBlockUtils.cpp | |
| parent | e9869d8eebf5e22ebdb6b714c15794beac237693 (diff) | |
Fix PR5247, "lock addq" pattern (and other atomics), it DOES modify EFLAGS.
LLC was scheduling compares before the adds causing wrong branches to be taken
in programs, resulting in misoptimized code wherever atomic adds where used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84485 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Utils/BasicBlockUtils.cpp')
0 files changed, 0 insertions, 0 deletions