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

[Graydon Hoare via Phabricator via llvm-commits]

graydon added a comment.

In https://reviews.llvm.org/D45003#1053430, @probinson wrote:

> There's commentary in lib/MC/MCParser/AsmParser.cpp about the ungraceful degradation in SourceMgr's cache.  Would this help or simplify what AsmParser is doing?


I believe this should eliminate the behaviour those comments describe (and thus remove the need for the code), though I feel a bit under-qualified tinkering with the code there itself. Would you like me to try, or shall I leave it to the owners of that file?


Repository:
  rL LLVM

https://reviews.llvm.org/D45003