[PATCH] D20338: [PCH] Fixed overridden files always invalidating preamble even when unchanged

[Cameron via cfe-commits]

cameron314 updated the summary for this revision.
cameron314 removed rL LLVM as the repository for this revision.
cameron314 updated this revision to Diff 59577.
cameron314 added a comment.

It took some modifications to the ASTUnit to support a virtual file system with a PCH parse/reparse (preliminary VFS support had already been added in http://reviews.llvm.org/rL249410 but it did not support initial parses using PCHs, nor reparses), but I was finally able to write a test that checks that the reparse actually uses the PCH with my fix, and rejects the PCH (rereading everything and failing the test) without it.


http://reviews.llvm.org/D20338

Files:
  include/clang/Basic/FileManager.h
  include/clang/Frontend/ASTUnit.h
  lib/Basic/FileManager.cpp
  lib/Frontend/ASTUnit.cpp
  unittests/Frontend/CMakeLists.txt
  unittests/Frontend/PchPreambleTest.cpp

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