[PATCH] D40758: PeepholeOptimizer: Do not form PHI with subreg operands

[Matthias Braun via Phabricator via llvm-commits]

MatzeB updated this revision to Diff 125415.
MatzeB added a comment.

Rebased to ToT and removed a cleanup/refactoring change that sneaked in here by accident.

@Bruno: Quentin claims you know this code/loop in this patch better than him, could you take a look?


Repository:
  rL LLVM

https://reviews.llvm.org/D40758

Files:
  lib/CodeGen/PeepholeOptimizer.cpp
  test/CodeGen/ARM/peephole-phi.mir

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