[all-commits] [llvm/llvm-project] eba2fd: Reland: [LFI][X86] Add X86 LFI target and system i...

[Zachary Yedidia via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: eba2fde4d5409ae861587552ddc8c6837de2ad82
      https://github.com/llvm/llvm-project/commit/eba2fde4d5409ae861587552ddc8c6837de2ad82
  Author: Zachary Yedidia <zyedidia at gmail.com>
  Date:   2026-07-07 (Tue, 07 Jul 2026)

  Changed paths:
    M clang/lib/Basic/Targets/X86.cpp
    M llvm/docs/LFI.rst
    M llvm/include/llvm/TargetParser/Triple.h
    M llvm/lib/MC/MCLFI.cpp
    M llvm/lib/Target/X86/MCTargetDesc/CMakeLists.txt
    A llvm/lib/Target/X86/MCTargetDesc/X86MCLFIRewriter.cpp
    A llvm/lib/Target/X86/MCTargetDesc/X86MCLFIRewriter.h
    M llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/lib/Target/X86/X86ISelLoweringCall.cpp
    M llvm/lib/Target/X86/X86RegisterInfo.cpp
    M llvm/lib/Target/X86/X86Subtarget.h
    M llvm/lib/TargetParser/Triple.cpp
    A llvm/test/CodeGen/X86/lfi-sibcall.ll
    A llvm/test/MC/X86/LFI/abi-note.s
    A llvm/test/MC/X86/LFI/syscall.s
    A llvm/test/MC/X86/LFI/thread-pointer-errors.s
    A llvm/test/MC/X86/LFI/thread-pointer.s

  Log Message:
  -----------
  Reland: [LFI][X86] Add X86 LFI target and system instruction rewrites (#207892)

Reintroduction of #189569 using the MCRegisterClass accessor API, which
was recently modified and caused a build error when the previous PR
was merged since it was not rebased onto the latest commit.



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