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Author SHA1 Message Date
Sanjoy Das 1f05c51e5e This patch teaches ScalarEvolution to pick and use !range metadata. 
It also makes it more aggressive in querying range information by
adding a call to isKnownPredicateWithRanges to
isLoopBackedgeGuardedByCond and isLoopEntryGuardedByCond.

phabricator: http://reviews.llvm.org/D5638

Reviewed by: atrick, hfinkel

llvm-svn: 219532
 2014-10-10 21:22:34 +00:00