[PATCH] D24327: [DAGCombine] Modification of visitBR_CC

[Jongwon Lee via llvm-commits]

JongwonLee created this revision.
JongwonLee added reviewers: RKSimon, bryant, spatel.
JongwonLee added a subscriber: llvm-commits.

visitBR_CC is modified to support below IR change.

 %2 = add %1, #const
 br_cc cond %2, #const
 -->
 br_cc cond %1, 0

https://reviews.llvm.org/D24327

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/AArch64/DAGCombine-optimize-brcc.ll

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