[PATCH] D50222: [CodeGen] [SelectionDAG] More efficient code for X % C == 0

Dmytro Shynkevych via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Sun Aug 5 10:10:37 PDT 2018


hermord updated this revision to Diff 159227.
hermord added a comment.

@majnemer Thanks; this was, in fact, incorrect. Now, to simplify the logic, the absolute value of D is taken and lshr is used.


Repository:
  rL LLVM

https://reviews.llvm.org/D50222

Files:
  include/llvm/CodeGen/TargetLowering.h
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  lib/CodeGen/SelectionDAG/TargetLowering.cpp
  test/CodeGen/Hexagon/swp-const-tc2.ll
  test/CodeGen/X86/jump_sign.ll
  test/CodeGen/X86/rem.ll
  test/CodeGen/X86/vselect-avx.ll

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