[PATCH] D45003: [Support] Make line-number cache robust against access patterns.

[Graydon Hoare via Phabricator via llvm-commits]

graydon updated this revision to Diff 140714.
graydon edited the summary of this revision.
graydon added a comment.

Update to add more tests around boundary conditions of buffer-map expansion.


Repository:
  rL LLVM

https://reviews.llvm.org/D45003

Files:
  include/llvm/Support/SourceMgr.h
  lib/Support/SourceMgr.cpp
  unittests/Support/SourceMgrTest.cpp

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