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3 Commits

Author SHA1 Message Date
Nadav Rotem
e266efb70b Loop Vectorize: optimize the vectorization of trunc(induction_var). The truncation is now done on scalars. 
llvm-svn: 169904
 2012-12-11 18:58:10 +00:00
Nadav Rotem
a721b21c64 LoopVectorizer: Add a basic cost model which uses the VTTI interface. 
llvm-svn: 166620
 2012-10-24 20:36:32 +00:00
Nadav Rotem
fe88c67161 Fix a bug in the vectorization of wide load/store operations. 
We used a SCEV to detect that A[X] is consecutive. We assumed that X was
the induction variable. But X can be any expression that uses the induction
for example: X = i + 2;

llvm-svn: 166388
 2012-10-21 06:49:10 +00:00