[PATCH] D60645: [LSR] PR41445: Rewrite misses some fixup locations if it splits critical edge.

Denis Bakhvalov via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Apr 12 22:00:18 PDT 2019


dendibakh created this revision.
dendibakh added reviewers: qcolombet, efriedma.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

If LSR split critical edge during rewriting phi operands and
phi node has other pending fixup operands, we need to
update those pending fixups. Otherwise formulae will not be
implemented completely and some instructions will not be eliminated.


Repository:
  rL LLVM

https://reviews.llvm.org/D60645

Files:
  lib/Transforms/Scalar/LoopStrengthReduce.cpp
  test/Transforms/LoopStrengthReduce/pr41445.ll

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