[PATCH] D21674: [BranchFolding] Update UnavoidableBlocks for OutlineOptionalBranches

[Haicheng Wu via llvm-commits]

haicheng created this revision.
haicheng added reviewers: mcrosier, mssimpso.
haicheng added subscribers: iteratee, llvm-commits, echristo.
haicheng set the repository for this revision to rL LLVM.
Herald added a subscriber: mcrosier.

The experimental code OutlineOptionalBranches of machine block placement requires updated UnavoidableBlocks if tail merging is called during the placement.

Repository:
  rL LLVM

http://reviews.llvm.org/D21674

Files:
  lib/CodeGen/BranchFolding.cpp
  lib/CodeGen/BranchFolding.h
  lib/CodeGen/MachineBlockPlacement.cpp
  test/CodeGen/AArch64/tailmerging_in_mbp.ll

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