[PATCH] D56717: [SLH] AArch64: correctly pick temporary register to mask SP

[Kristof Beyls via Phabricator via llvm-commits]

kristof.beyls updated this revision to Diff 182498.
kristof.beyls edited the summary of this revision.
kristof.beyls added a comment.

Updated approach to use the register scavenger to find an available temporary register. In the rare case when no temporary register is available, fall back to inserting a full speculation barrier.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D56717/new/

https://reviews.llvm.org/D56717

Files:
  llvm/lib/Target/AArch64/AArch64SpeculationHardening.cpp
  llvm/test/CodeGen/AArch64/speculation-hardening-loads.ll
  llvm/test/CodeGen/AArch64/speculation-hardening.ll
  llvm/test/CodeGen/AArch64/speculation-hardening.mir

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