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Author SHA1 Message Date
David L Kreitzer 8bbabee21a Reapplying r278731 after fixing the problem that caused it to be reverted. 
Enhance SCEV to compute the trip count for some loops with unknown stride.

Patch by Pankaj Chawla

Differential Revision: https://reviews.llvm.org/D22377

llvm-svn: 281732
 2016-09-16 14:38:13 +00:00
Reid Kleckner b99b709068 Revert "Enhance SCEV to compute the trip count for some loops with unknown stride." 
This reverts commit r278731. It caused http://crbug.com/638314

llvm-svn: 278853
 2016-08-16 21:02:04 +00:00
David L Kreitzer 7fe18251a5 Enhance SCEV to compute the trip count for some loops with unknown stride. 
Patch by Pankaj Chawla

Differential Revision: https://reviews.llvm.org/D22377

llvm-svn: 278731
 2016-08-15 20:21:41 +00:00