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Author SHA1 Message Date
Evan Phoenix 44e5dbcaf0 Extend ConstantFolding to understand signed overflow variants 
llvm-svn: 83338
 2009-10-05 22:53:52 +00:00
Chris Lattner 59d939894b teach the optimizer how to constant fold uadd/usub intrinsics. 
llvm-svn: 83295
 2009-10-05 05:26:04 +00:00