[PATCH] D76068: [ARM][MachineOutliner] Add NoLRSave and Register modes.

[Yvan Roux via Phabricator via llvm-commits]

yroux created this revision.
yroux added reviewers: t.p.northover, efriedma, paquette, samparker, SjoerdMeijer.
Herald added subscribers: llvm-commits, danielkiss, hiraditya, kristof.beyls.
Herald added a project: LLVM.

Outline chunks of code which doesn't need a save/restore mechanism of
the link register or use a spare register to do it.

This is a follow-up of ARM Machine Outliner support RFC D57054 <https://reviews.llvm.org/D57054> and 
should be applied on top of D76066 <https://reviews.llvm.org/D76066>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D76068

Files:
  llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp
  llvm/lib/Target/ARM/ARMBaseInstrInfo.h
  llvm/test/CodeGen/ARM/machine-outliner-nosave-and-regs.mir

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