[PATCH] D109206: [AArch64][GlobalISel] Support for folding G_ROTR as shifted operands.

[Amara Emerson via Phabricator via llvm-commits]

aemerson created this revision.
aemerson added a reviewer: paquette.
aemerson added a project: LLVM.
Herald added subscribers: hiraditya, kristof.beyls, rovka.
aemerson requested review of this revision.

This allows selection like: `eor w0, w1, w2, ror #8`

Saves 500 bytes on ClamAV -Os, which is 0.1%.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D109206

Files:
  llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/select-rotate.mir

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