[PATCH] D21854: Remove AND mask of bottom 6 bits when result is used for SystemZ shift/rotate

Elliot Colp via llvm-commits llvm-commits at lists.llvm.org
Thu Jun 30 14:35:06 PDT 2016


colpell updated this revision to Diff 62425.
colpell added a comment.

Good point, thanks Ulrich. As suggested, I've moved the implementation to a more concise one in PerformDAGCombine.


http://reviews.llvm.org/D21854

Files:
  lib/Target/SystemZ/SystemZISelLowering.cpp
  test/CodeGen/SystemZ/rot-01.ll
  test/CodeGen/SystemZ/rot-02.ll
  test/CodeGen/SystemZ/shift-12.ll

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