[all-commits] [llvm/llvm-project] df9b1f: [clang][Mach-O] Add an option to force UNWIND_*_MO...

[Jon Roelofs via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: df9b1f89a4f4f0c7b5afc03d273a825caef268fb
      https://github.com/llvm/llvm-project/commit/df9b1f89a4f4f0c7b5afc03d273a825caef268fb
  Author: Jon Roelofs <jonathan_roelofs at apple.com>
  Date:   2026-06-18 (Thu, 18 Jun 2026)

  Changed paths:
    M clang/docs/UsersManual.rst
    M clang/include/clang/Options/Options.td
    M clang/test/Driver/femit-dwarf-unwind.c
    M clang/test/Driver/femit-dwarf-unwind.s
    M clang/tools/driver/cc1as_main.cpp
    M llvm/include/llvm/MC/MCTargetOptions.h
    M llvm/lib/MC/MCObjectFileInfo.cpp
    M llvm/lib/MC/MCTargetOptionsCommandFlags.cpp
    M llvm/lib/Target/AArch64/MCTargetDesc/AArch64AsmBackend.cpp
    M llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp
    M llvm/lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp
    A llvm/test/MC/AArch64/compact-unwind-force-dwarf.s
    M llvm/test/MC/MachO/ARM/compact-unwind-armv7k.s
    A llvm/test/MC/X86/compact-unwind-force-dwarf.s

  Log Message:
  -----------
  [clang][Mach-O] Add an option to force UNWIND_*_MODE_DWARF compact unwind info (#204005)

The new option value extends: `-femit-dwarf-unwind=dwarf-only`. This is
primarily intended as a testing mechanism to ensure coverage on the
DWARF-only parts of the unwinder, where previously the compact unwinder
would have taken care of most functions.



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