[PATCH] D64172: Basic codegen for MTE stack tagging.

[Evgenii Stepanov via Phabricator via llvm-commits]

eugenis created this revision.
eugenis added reviewers: pcc, vitalybuka, hctim, ostannard.
Herald added subscribers: jsji, hiraditya, kristof.beyls, javed.absar.
Herald added a project: LLVM.

Implement IR intrinsics for stack tagging. Generated code is very
unoptimized for now.

Two special intrinsics, llvm.aarch64.irg.sp and llvm.aarch64.tagp are
used to implement a tagged stack frame pointer in a virtual register.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D64172

Files:
  llvm/include/llvm/CodeGen/SelectionDAGTargetInfo.h
  llvm/include/llvm/IR/IntrinsicsAArch64.td
  llvm/lib/Analysis/ValueTracking.cpp
  llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
  llvm/lib/Target/AArch64/AArch64ExpandPseudoInsts.cpp
  llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
  llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/lib/Target/AArch64/AArch64ISelLowering.h
  llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
  llvm/lib/Target/AArch64/AArch64InstrInfo.td
  llvm/lib/Target/AArch64/AArch64MachineFunctionInfo.h
  llvm/lib/Target/AArch64/AArch64RegisterInfo.cpp
  llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.cpp
  llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.h
  llvm/test/Analysis/ValueTracking/aarch64.irg.ll
  llvm/test/CodeGen/AArch64/irg.ll
  llvm/test/CodeGen/AArch64/settag.ll
  llvm/test/CodeGen/AArch64/stgp.ll
  llvm/test/CodeGen/AArch64/tagp.ll

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