llvm/lib/Transforms
Florian Hahn 8a56643640 [simplifycfg][loop-simplify] Preserve loop metadata in 2 transformations.
insertUniqueBackedgeBlock in lib/Transforms/Utils/LoopSimplify.cpp now
propagates existing llvm.loop metadata to newly the added backedge.

llvm::TryToSimplifyUncondBranchFromEmptyBlock in lib/Transforms/Utils/Local.cpp
now propagates existing llvm.loop metadata to the branch instructions in the
predecessor blocks of the empty block that is removed.

Differential Revision: https://reviews.llvm.org/D26495


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287341 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-18 13:12:07 +00:00
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