[all-commits] [llvm/llvm-project] 6227eb: Add IR and codegen support for deactivation symbols.

[Peter Collingbourne via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6227eb90da2a417125477b27799ae2e8f43b9e49
      https://github.com/llvm/llvm-project/commit/6227eb90da2a417125477b27799ae2e8f43b9e49
  Author: Peter Collingbourne <pcc at google.com>
  Date:   2025-11-26 (Wed, 26 Nov 2025)

  Changed paths:
    M llvm/docs/LangRef.rst
    M llvm/include/llvm/CodeGen/GlobalISel/CallLowering.h
    M llvm/include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h
    M llvm/include/llvm/CodeGen/ISDOpcodes.h
    M llvm/include/llvm/CodeGen/MachineFunction.h
    M llvm/include/llvm/CodeGen/MachineInstr.h
    M llvm/include/llvm/CodeGen/MachineInstrBuilder.h
    M llvm/include/llvm/CodeGen/SelectionDAG.h
    M llvm/include/llvm/CodeGen/SelectionDAGISel.h
    M llvm/include/llvm/CodeGen/SelectionDAGNodes.h
    M llvm/include/llvm/CodeGen/TargetLowering.h
    M llvm/include/llvm/IR/LLVMContext.h
    M llvm/include/llvm/Target/Target.td
    M llvm/lib/CodeGen/GlobalISel/CallLowering.cpp
    M llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
    M llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
    M llvm/lib/CodeGen/MIRParser/MILexer.cpp
    M llvm/lib/CodeGen/MIRParser/MILexer.h
    M llvm/lib/CodeGen/MIRParser/MIParser.cpp
    M llvm/lib/CodeGen/MIRPrinter.cpp
    M llvm/lib/CodeGen/MachineFunction.cpp
    M llvm/lib/CodeGen/MachineInstr.cpp
    M llvm/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
    M llvm/lib/IR/Instructions.cpp
    M llvm/lib/IR/LLVMContext.cpp
    M llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp
    M llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/lib/Target/AArch64/AArch64InstrFormats.td
    M llvm/lib/Target/AArch64/AArch64InstrInfo.td
    M llvm/lib/Target/AArch64/GISel/AArch64CallLowering.cpp
    M llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
    M llvm/test/Bitcode/operand-bundles-bc-analyzer.ll
    A llvm/test/CodeGen/AArch64/deactivation-symbols.ll
    A llvm/test/CodeGen/MIR/AArch64/deactivation-symbols.mir
    M llvm/test/Transforms/InstCombine/ptrauth-intrinsics.ll
    M llvm/utils/TableGen/DAGISelMatcherEmitter.cpp

  Log Message:
  -----------
  Add IR and codegen support for deactivation symbols.

Deactivation symbols are a mechanism for allowing object files to disable
specific instructions in other object files at link time. The initial use
case is for pointer field protection.

For more information, see the RFC:
https://discourse.llvm.org/t/rfc-deactivation-symbols/85556

Reviewers: ojhunt, nikic, fmayer, arsenm, ahmedbougacha

Reviewed By: fmayer

Pull Request: https://github.com/llvm/llvm-project/pull/133536



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