[PATCH] D143193: [DAG] Add visitABD optimizations

[Dave Green via Phabricator via llvm-commits]

dmgreen updated this revision to Diff 494842.
dmgreen added a comment.

I was just updating it now :)

This adds reassociation, and also moves the lowering of NEON ABD intrinsics from lowering to a combine so that they can happen earlier which makes testing easier.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D143193/new/

https://reviews.llvm.org/D143193

Files:
  llvm/include/llvm/CodeGen/TargetLowering.h
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/test/CodeGen/AArch64/abd-combine.ll
  llvm/test/CodeGen/AArch64/arm64-neon-aba-abd.ll
  llvm/test/CodeGen/Thumb2/mve-vabdus.ll

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