[PATCH] D139214: [BOLT][DWARF] Don't create extra .debug_str_offsets contributions

[Alexander Yermolovich via Phabricator via llvm-commits]

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With ThinLTO mutliple CUs can share the same .debug_str_offsets contribution. We
were creating a new one for each CU. This lead to a binary size increase.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D139214

Files:
  bolt/include/bolt/Core/DebugData.h
  bolt/lib/Core/DebugData.cpp
  bolt/lib/Rewrite/DWARFRewriter.cpp
  bolt/test/X86/dwarf5-shared-str-offset-base.s

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