[PATCH] D41005: Reuse preamble even if an unsaved file does not exist

[Nikolai Kosjar via Phabricator via cfe-commits]

nik updated this revision to Diff 128416.
nik added a comment.

Rebased and renamed the counter variable only.

I do not feel comfortable changing the "std::map<llvm::sys::fs::UniqueID,
PreambleFileHash> OverriddenFiles". I can do this in a follow-up change if you
want.

@Ivan: Coul you please run the tests with this change on Windows?! If it goes
well (no failures), then please also give it also a try with the additional
change (reply to "Will anything fail if we remove the map from UniqueID to
hashes of overriden files and the corresponding checks?").


Repository:
  rC Clang

https://reviews.llvm.org/D41005

Files:
  include/clang/Frontend/ASTUnit.h
  lib/Frontend/ASTUnit.cpp
  lib/Frontend/PrecompiledPreamble.cpp
  unittests/Frontend/PCHPreambleTest.cpp

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