[PATCH] D31319: [PPC] Eliminate redundant sign- and zero-extensions in PPC MI Peephole pass

[Hiroshi Inoue via Phabricator via llvm-commits]

inouehrs updated this revision to Diff 117963.
inouehrs edited the summary of this revision.
inouehrs added a comment.

- rebased to the latest tree
- some improvements for wider coverage


https://reviews.llvm.org/D31319

Files:
  lib/Target/PowerPC/PPCISelLowering.cpp
  lib/Target/PowerPC/PPCInstrInfo.cpp
  lib/Target/PowerPC/PPCInstrInfo.h
  lib/Target/PowerPC/PPCMIPeephole.cpp
  lib/Target/PowerPC/PPCMachineFunctionInfo.cpp
  lib/Target/PowerPC/PPCMachineFunctionInfo.h
  test/CodeGen/PowerPC/eliminate_ext.ll
  test/CodeGen/PowerPC/expand-isel.ll
  test/CodeGen/PowerPC/memCmpUsedInZeroEqualityComparison.ll
  test/CodeGen/PowerPC/p8-scalar_vector_conversions.ll
  test/CodeGen/PowerPC/ppc-ctr-dead-code.ll

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