[PATCH] D122994: [SVE] Move reg+reg gather/scatter addressing optimisations from lowering into DAG combine.

[Paul Walker via Phabricator via llvm-commits]

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This is essentially a refactoring patch but allows more cases to
be caught, hence the output changes to some tests.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D122994

Files:
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/test/CodeGen/AArch64/sve-fixed-length-masked-gather.ll
  llvm/test/CodeGen/AArch64/sve-fixed-length-masked-scatter.ll
  llvm/test/CodeGen/AArch64/sve-gather-scatter-addr-opts.ll

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