[all-commits] [llvm/llvm-project] 431802: DebugInfo: Add a DWARF FORM extension for addrx+of...

[David Blaikie via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4318028cd2d7633a0cdeb0b5d4d2ed81fab87864
      https://github.com/llvm/llvm-project/commit/4318028cd2d7633a0cdeb0b5d4d2ed81fab87864
  Author: David Blaikie <dblaikie at gmail.com>
  Date:   2021-01-28 (Thu, 28 Jan 2021)

  Changed paths:
    M llvm/include/llvm/BinaryFormat/Dwarf.def
    M llvm/include/llvm/CodeGen/DIE.h
    M llvm/include/llvm/CodeGen/DIEValue.def
    M llvm/lib/CodeGen/AsmPrinter/DIE.cpp
    M llvm/lib/CodeGen/AsmPrinter/DIEHash.cpp
    M llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
    M llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
    M llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
    M llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
    M llvm/lib/DebugInfo/DWARF/DWARFFormValue.cpp
    M llvm/test/DebugInfo/X86/ranges_always.ll

  Log Message:
  -----------
  DebugInfo: Add a DWARF FORM extension for addrx+offset references to reduce relocations

This is an alternative to the use of complex DWARF expressions for
addresses - shaving off a few extra bytes of expression overhead.