[PATCH] D81402: [AArch64] Extend AArch64SLSHardeningPass to harden BLR instructions.

[Kristof Beyls via Phabricator via llvm-commits]

kristof.beyls updated this revision to Diff 269838.
kristof.beyls edited the summary of this revision.
kristof.beyls added a comment.

The updated patch addresses Oliver's review comments.
Especially, it addresses the review feedback regarding potential clobbering of X16 or X17 when the call to the thunks go through a long veneer.
It addresses this by avoiding generating indirect calls that use X16 or X17.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D81402/new/

https://reviews.llvm.org/D81402

Files:
  llvm/lib/Target/AArch64/AArch64.h
  llvm/lib/Target/AArch64/AArch64.td
  llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp
  llvm/lib/Target/AArch64/AArch64FastISel.cpp
  llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
  llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
  llvm/lib/Target/AArch64/AArch64InstrInfo.h
  llvm/lib/Target/AArch64/AArch64InstrInfo.td
  llvm/lib/Target/AArch64/AArch64SLSHardening.cpp
  llvm/lib/Target/AArch64/AArch64Subtarget.h
  llvm/lib/Target/AArch64/AArch64TargetMachine.cpp
  llvm/lib/Target/AArch64/GISel/AArch64CallLowering.cpp
  llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/call-translator.ll
  llvm/test/CodeGen/AArch64/GlobalISel/irtranslator-exceptions.ll
  llvm/test/CodeGen/AArch64/O0-pipeline.ll
  llvm/test/CodeGen/AArch64/O3-pipeline.ll
  llvm/test/CodeGen/AArch64/chkstk.ll
  llvm/test/CodeGen/AArch64/speculation-hardening-sls-blr.mir
  llvm/test/CodeGen/AArch64/speculation-hardening-sls.ll

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