[PATCH] D22521: [MBP] do not reorder and move up loop latch block

[Sjoerd Meijer via llvm-commits]

SjoerdMeijer updated this revision to Diff 65754.
SjoerdMeijer added a comment.

I have added checks to see if the header's layout predecessor is a fallthrough or unconditional branch to the loop header. In that case we do not move up the latch block, but we still do otherwise.


https://reviews.llvm.org/D22521

Files:
  lib/CodeGen/MachineBlockPlacement.cpp
  test/CodeGen/X86/loop-blocks.ll

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