[PATCH] D75375: [MCDwarf] Generate DWARF v5 .debug_rnglists for assembly files

[Fangrui Song via Phabricator via llvm-commits]

MaskRay created this revision.
MaskRay added reviewers: dblaikie, echristo, ostannard, probinson.
Herald added subscribers: llvm-commits, hiraditya, aprantl.
Herald added a project: LLVM.

  // clang -c -gdwarf-5 a.s -o a.o
  .section .init; ret
  .text; ret

.debug_info contains DW_AT_ranges and llvm-dwarfdump will report
a verification error because .debug_rnglists does not exist.

This patch generates .debug_rnglists for assembly files.
emitListsTableHeaderStart() in DwarfDebug.cpp can be shared with
MCDwarf.cpp. Because CodeGen depends on MC, I move the function to
MCDwarf.cpp


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D75375

Files:
  llvm/include/llvm/MC/MCDwarf.h
  llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
  llvm/lib/MC/MCDwarf.cpp
  llvm/test/MC/ARM/dwarf-asm-multiple-sections.s

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