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3 Commits

Author SHA1 Message Date
Ben Langmuir f9a6ac213a Add a test where the module map is overriden in the vfs 
Specifically, we pass two -ivfsoverlay yaml files, and the topmost one
remaps the module map file.

llvm-svn: 205632
 2014-04-04 16:42:53 +00:00
Ben Langmuir d066d4c849 Reapply fixed "Honour 'use-external-names' in FileManager" 
Was r202442

There were two issues with the original patch that have now been fixed.
1. We were memset'ing over a FileEntry in a test case. After adding a
   std::string to FileEntry, this still happened to not break for me.
2. I didn't pass the FileManager into the new compiler instance in
   compileModule. This was hidden in some cases by the fact I didn't
   clear the module cache in the test.

Also, I changed the copy constructor for FileEntry, which was memcpy'ing
in a (now) unsafe way.

llvm-svn: 202539
 2014-02-28 21:16:07 +00:00
Ben Langmuir 801272a98c Add a driver option -ivfsoverlay 
Reads the description of a virtual filesystem from a file and overlays
it over the real file system.

llvm-svn: 202176
 2014-02-25 18:23:47 +00:00