Serge Pavlov ea0ea63773 Recognize test for overflow in integer multiplication. ... If multiplication involves zero-extended arguments and the result is compared as in the patterns: %mul32 = trunc i64 %mul64 to i32 %zext = zext i32 %mul32 to i64 %overflow = icmp ne i64 %mul64, %zext or %overflow = icmp ugt i64 %mul64 , 0xffffffff then the multiplication may be replaced by call to umul.with.overflow. This change fixes PR4917 and PR4918. Differential Revision: http://llvm-reviews.chandlerc.com/D2814 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206137 91177308-0d34-0410-b5e6-96231b3b80d8		2014-04-13 18:23:41 +00:00
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Hello	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-05 09:10:37 +00:00
InstCombine	Recognize test for overflow in integer multiplication.	2014-04-13 18:23:41 +00:00
Instrumentation	Implement depth_first and inverse_depth_first range factory functions.	2014-04-11 01:50:01 +00:00
IPO	Add support for optimization reports.	2014-04-08 16:42:34 +00:00
ObjCARC	Fix use_iterator crash in ObjCArc from r203364	2014-03-18 22:32:43 +00:00
Scalar	Implement depth_first and inverse_depth_first range factory functions.	2014-04-11 01:50:01 +00:00
Utils	Implement depth_first and inverse_depth_first range factory functions.	2014-04-11 01:50:01 +00:00
Vectorize	Reapply "SLPVectorizer: Ignore users that are insertelements we can reschedule them"	2014-04-10 13:41:35 +00:00
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