[PATCH] D39536: [PowerPC] Eliminate redundant register copys after register allocation

[Hiroshi Inoue via Phabricator via llvm-commits]

inouehrs updated this revision to Diff 122646.
inouehrs added a comment.

- rewrote without using kill flags as @gberry suggested.
- slightly increased coverage to support opportunity addressed by https://reviews.llvm.org/D39785.
- refactored to reduce duplicated code.


https://reviews.llvm.org/D39536

Files:
  lib/Target/PowerPC/CMakeLists.txt
  lib/Target/PowerPC/PPC.h
  lib/Target/PowerPC/PPCRegCopyElim.cpp
  lib/Target/PowerPC/PPCTargetMachine.cpp
  test/CodeGen/PowerPC/ppc64-byval-align.ll
  test/CodeGen/PowerPC/redundant_regcopy.ll
  test/CodeGen/PowerPC/redundant_regcopy_1.mir
  test/CodeGen/PowerPC/redundant_regcopy_2.mir
  test/CodeGen/PowerPC/remove-cyclic-mr.ll
  test/CodeGen/PowerPC/vsx.ll

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