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* Update MemorySSA in LoopUnswitch.Alina Sbirlea2018-09-111-0/+1
| | | | | | | | | | | | Summary: Update MemorySSA in old LoopUnswitch pass. Actual dependency and update is disabled by default. Subscribers: sanjoy, jlebar, Prazek, llvm-commits Differential Revision: https://reviews.llvm.org/D45301 llvm-svn: 341984
* [LoopUnswitch] Fix a simple bug which disables loop unswitch for select ↵Wei Mi2017-08-291-0/+26
statement This is to fix PR34257. rL309059 takes an early return when FindLIVLoopCondition fails to find a loop invariant condition. This is wrong and it will disable loop unswitch for select. The patch fixes the bug. Differential Revision: https://reviews.llvm.org/D36985 llvm-svn: 312045
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