[PATCH] D101898: [ARM] Prevent spilling between ldrex/strex pairs

[Tomas Matheson via Phabricator via llvm-commits]

tmatheson updated this revision to Diff 344460.
tmatheson added a comment.

- Add tests for v8m.baseline
- Add two new pseudo instructions tCMP_SWAP_8 and tCMP_SWAP_16 to limit register for UXT instruction
- Add some asserts in ExpandCMP_SWAP


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D101898/new/

https://reviews.llvm.org/D101898

Files:
  llvm/lib/Target/ARM/ARMExpandPseudoInsts.cpp
  llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp
  llvm/lib/Target/ARM/ARMISelLowering.cpp
  llvm/lib/Target/ARM/ARMInstrThumb.td
  llvm/test/CodeGen/ARM/atomicrmw_exclusive_monitor_ints.ll

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