Anna Thomas f5a5fa0d37 [LoopPredication] Add profitability check based on BPI ... Summary: LoopPredication is not profitable when the loop is known to always exit through some block other than the latch block. A coarse grained latch check can cause loop predication to predicate the loop, and unconditionally deoptimize. However, without predicating the loop, the guard may never fail within the loop during the dynamic execution because the non-latch loop termination condition exits the loop before the latch condition causes the loop to exit. We teach LP about this using BranchProfileInfo pass. Reviewers: apilipenko, skatkov, mkazantsev, reames Reviewed by: skatkov Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D44667 llvm-svn: 328210		2018-03-22 16:03:59 +00:00
..
basic.ll
nested.ll
profitability.ll	[LoopPredication] Add profitability check based on BPI	2018-03-22 16:03:59 +00:00
reverse.ll
visited.ll
widened.ll