Weiming Zhao 8f43bb43cc Fix AArch64ConditionOptimizer
Summary:
This pass may modify the Cmp operands. However, the flag reg may be used by both the branch and CSEL.
Modifying CMP will have side effect on CSEL.

Reviewers: t.p.northover

Subscribers: llvm-commits, aemerson, rengolin

Differential Revision: http://reviews.llvm.org/D16147

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257844 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-15 00:06:58 +00:00
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