[llvm-testresults] buildbot failure in lab.llvm.org on phase1 - sanity

[llvmlab-buildmaster at lab.llvm.org]

The Buildbot has detected a new failure on builder phase1 - sanity while building cfe.
Full details are available at:
 http://lab.llvm.org:8013/builders/phase1%20-%20sanity/builds/264

Buildbot URL: http://lab.llvm.org:8013/

Buildslave for this Build: macpro1

Build Reason: scheduler
Build Source Stamp: 209910
Blamelist: benlangmuir

BUILD FAILED: failed

sincerely,
 -The Buildbot


================================================================================

CHANGES:
File: lib/Serialization/ModuleManager.cpp
On: http://10.1.1.2/svn/llvm-project
For: cfe
At: Fri 30 May 2014 10:51:25
Changed By: benlangmuir
Comments: Invalidate the file system cache entries for files that may rebuild

I thought we could get away without this, but it means that the
FileEntry objects actually refer to the wrong files, since pcms are not
updated inplace, they are atomically renamed into place after compiling
a module.

So we are close to the original behaviour of invalidating the cache for
all modules being removed, but now we should only invalidate the ones
that depend on whichever module failed to load.

Unfortunately I haven't come up with a new test that didn't require
a race between parallel invocations of clang.

<rdar://problem/17038180>Properties: 




LOGS: