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

[Jun Bum Lim via llvm-commits]

junbuml updated this revision to Diff 75209.
junbuml added a comment.

Integrated David's comments by adding support to handle multiple empty blocks sharing the same incoming value for the PHIs in the DestBB.  Added f_switch3() in the testcase, which will describe the case of  multiple empty blocks. Please take a look and let me know any comments.

Thanks,
Jun


https://reviews.llvm.org/D22696

Files:
  lib/CodeGen/CodeGenPrepare.cpp
  test/Transforms/CodeGenPrepare/skip-merging-case-block.ll

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