[PATCH] D149208: [DebugInfo]Lazy parse abbrevs when symbolizing

[David Blaikie via Phabricator via llvm-commits]

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This speeds up llvm-symbolizer on code without .debug_aranges - we don't
need to parse all the abbrevs for every CU, just usually the first
abbrev for most CUs, then more abbrevs for any CU we go look into for
symbolizing.

I don't think this makes enough of a difference to worry too much about - but
throwing it out there since I wrote it while exploring things.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D149208

Files:
  llvm/include/llvm/DebugInfo/DWARF/DWARFDebugAbbrev.h
  llvm/include/llvm/DebugInfo/DWARF/DWARFUnit.h
  llvm/lib/DebugInfo/DWARF/DWARFDebugAbbrev.cpp
  llvm/lib/DebugInfo/DWARF/DWARFDebugInfoEntry.cpp
  llvm/lib/DebugInfo/DWARF/DWARFUnit.cpp

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