[PATCH] D123144: FileManager: std::map => BumpPtrAllocator + DenseMap of pointers

[Sam McCall via Phabricator via cfe-commits]

sammccall created this revision.
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This is both smaller and faster.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D123144

Files:
  clang/include/clang/Basic/FileManager.h
  clang/lib/Basic/FileManager.cpp

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