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Author SHA1 Message Date
Douglas Gregor a700f68828 Reinstate the optimization suppressing available_externally functions 
at -O0. The only change from the previous patch is that we don't try
to generate virtual method thunks for an available_externally
function.

llvm-svn: 108230
 2010-07-13 06:02:28 +00:00
Douglas Gregor 553f3a9b30 Speculatively revert r108156; it appears to be breaking self-host. 
llvm-svn: 108194
 2010-07-12 21:08:32 +00:00
Douglas Gregor dbb2806a7b Do not generate LLVM IR for available_externally function bodies at 
-O0, since we won't be using the definitions for anything anyway. For
lib/System/Path.o when built in Debug+Asserts mode, this leads to a 4%
improvement in compile time (and suppresses 440 function bodies).

<rdar://problem/7987644>

llvm-svn: 108156
 2010-07-12 17:24:55 +00:00
Douglas Gregor 5dd34744c5 Instantiations subject to an explicit template instantiation 
declaration have default visibility even under
-fvisibility=hidden. Fixes <rdar://problem/8109763>.

llvm-svn: 106440
 2010-06-21 18:41:26 +00:00