[PATCH] D70834: [llvm] llvm-ifs: Support for handling empty IFS and merging weak+strong symbols.

[Puyan Lotfi via Phabricator via llvm-commits]

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This adds support for merging weak symbols and small symbols in an IFS file for for handling the loading of IFS files with empty or default fields.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D70834

Files:
  llvm/test/tools/llvm-ifs/conflict-weak.ifs
  llvm/test/tools/llvm-ifs/default-empty.ifs
  llvm/test/tools/llvm-ifs/strong.ifs
  llvm/tools/llvm-ifs/llvm-ifs.cpp

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