[PATCH] D22696: [CodeGenPrep] Skip merging empty case blocks

[Jun Bum Lim via Phabricator via llvm-commits]

junbuml removed rL LLVM as the repository for this revision.
junbuml updated this revision to Diff 79746.
junbuml added a comment.

This change was reverted in r288052 due to the invalid loop info after eliminating an empty block. Now, I create LoopInfo when creating BFI/BPI so that it's not impacted by previous empty block  eliminated.


https://reviews.llvm.org/D22696

Files:
  lib/CodeGen/CodeGenPrepare.cpp
  test/CodeGen/X86/phi-immediate-factoring.ll
  test/CodeGen/X86/ragreedy-hoist-spill.ll
  test/Transforms/CodeGenPrepare/AArch64/widen_switch.ll
  test/Transforms/CodeGenPrepare/X86/widen_switch.ll
  test/Transforms/CodeGenPrepare/skip-merging-case-block.ll

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