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3 Commits

Author SHA1 Message Date
Nadav Rotem
807dad62a0 Teach the cost model about the optimization in r169904: Truncation of induction variables costs the same as scalar trunc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170051 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-13 00:21:03 +00:00
Nadav Rotem
5da804150d 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169950 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-12 01:11:46 +00:00
Nadav Rotem
d1d92bf953 Split the LoopVectorizer into H and CPP. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169771 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-10 21:39:02 +00:00