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3 Commits

Author SHA1 Message Date
Nadav Rotem
ca05f9e72b Teach the cost model about the optimization in r169904: Truncation of induction variables costs the same as scalar trunc. 
llvm-svn: 170051
 2012-12-13 00:21:03 +00:00
Nadav Rotem
edcebe4904 LoopVectorizer: When -Os is used, vectorize only loops that dont require a tail loop. There is no testcase because I dont know of a way to initialize the loop vectorizer pass without adding an additional hidden flag. 
llvm-svn: 169950
 2012-12-12 01:11:46 +00:00
Nadav Rotem
417eaafbc4 Split the LoopVectorizer into H and CPP. 
llvm-svn: 169771
 2012-12-10 21:39:02 +00:00