[PATCH] D85965: [GlobalISel] Add a combine for ashr(shl x, c), c --> sext_inreg x, c'

[Amara Emerson via Phabricator via llvm-commits]

aemerson updated this revision to Diff 285675.

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D85965/new/

https://reviews.llvm.org/D85965

Files:
  llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
  llvm/include/llvm/CodeGen/GlobalISel/MIPatternMatch.h
  llvm/include/llvm/Target/GlobalISel/Combine.td
  llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
  llvm/lib/Target/AArch64/AArch64Combine.td
  llvm/test/CodeGen/AArch64/GlobalISel/prelegalizercombiner-ashr-shl-to-sext-inreg.mir

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