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254 Commits

Author SHA1 Message Date
Douglas Gregor 99734e7669 Lazily load the controlling macros for all of the headers known in the 
PCH file. In the Cocoa-prefixed "Hello, World" benchmark, this takes
us from reading 503 identifiers down to 37 and from 470 macros down to
4. It also results in an 8% performance improvement.

llvm-svn: 70094
 2009-04-25 23:30:02 +00:00
Steve Naroff 3fa455a1aa Add PCH support for #import. 
llvm-svn: 69987
 2009-04-24 20:03:17 +00:00
Chris Lattner c25d8a7e30 improve compatibility with GCC 4.4, patch by Michel Salim (PR3697) 
llvm-svn: 65884
 2009-03-02 22:20:04 +00:00
Chris Lattner 7a51313d8a Make a major restructuring of the clang tree: introduce a top-level 
lib dir and move all the libraries into it.  This follows the main
llvm tree, and allows the libraries to be built in parallel.  The
top level now enforces that all the libs are built before Driver,
but we don't care what order the libs are built in.  This speeds
up parallel builds, particularly incremental ones.

llvm-svn: 48402
 2008-03-15 23:59:48 +00:00