[PATCH] D76066: [ARM][MachineOutliner] Add Machine Outliner support for ARM

[Yvan Roux via Phabricator via llvm-commits]

yroux updated this revision to Diff 263830.
yroux added a comment.

I found a last issue when doing a full bootstrap with -moutline used to build clang, there was a case of thunk outlining where the original was call a `BLX LR` which was broken by the outlining call `BL OUTLINE_FUNCTION_X`  I fixed this issue by checking the use of link register before handling calls and I've added a test case.

Rebased and full bootstrap in ARM and Thumb2 mode are now OK, I'll commit it tomorrow if that's fine for you.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D76066/new/

https://reviews.llvm.org/D76066

Files:
  clang/lib/Driver/ToolChains/Clang.cpp
  llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp
  llvm/lib/Target/ARM/ARMBaseInstrInfo.h
  llvm/lib/Target/ARM/ARMTargetMachine.cpp
  llvm/test/CodeGen/ARM/machine-outliner-tail.ll
  llvm/test/CodeGen/ARM/machine-outliner-thunk.ll
  llvm/test/CodeGen/ARM/machine-outliner-unoutlinable.mir
  llvm/test/CodeGen/ARM/machine-outliner-unsafe-registers.mir

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