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Author SHA1 Message Date
Nadav Rotem
6d9dafe3ff Force a fixed unroll count on the target independent tests. 
This should fix clang-native-arm-cortex-a9. Thanks Renato.

llvm-svn: 171582
 2013-01-05 00:58:48 +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
d189b82a9b Vectorize: teach cavVectorizeMemory to distinguish between A[i]+=x and A[B[i]]+=x. 
If the pointer is consecutive then it is safe to read and write. If the pointer is non-loop-consecutive then
it is unsafe to vectorize it because we may hit an ordering issue.

llvm-svn: 166371
 2012-10-20 08:26:33 +00:00