[PATCH] D144789: [DAG] Match select(icmp(x,y),sub(x,y),sub(y,x)) -> abd(x,y) patterns

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon created this revision.
RKSimon added reviewers: dmgreen, spatel, nemanjai.
Herald added subscribers: StephenFan, ecnelises, steven.zhang, kbarton, hiraditya.
Herald added a project: All.
RKSimon requested review of this revision.
Herald added a project: LLVM.

Pulled out of PowerPC


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D144789

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/lib/Target/PowerPC/PPCISelLowering.cpp
  llvm/lib/Target/PowerPC/PPCISelLowering.h
  llvm/test/CodeGen/AArch64/abd-combine.ll
  llvm/test/CodeGen/PowerPC/ppc64-P9-vabsd.ll

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