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authorNadav Rotem <nrotem@apple.com>2013-06-24 02:52:43 +0000
committerNadav Rotem <nrotem@apple.com>2013-06-24 02:52:43 +0000
commit25961b469a9debe69b915bcb4fa49d35d2ee9544 (patch)
treee7248f96a07965ce6e6992583c81044989b9d925 /lib/Transforms/Scalar/LoopRotation.cpp
parentf7b5e016363b664461f33a4a391b27bea637209d (diff)
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SLP Vectorizer: Add support for vectorizing parts of the tree.
Untill now we detected the vectorizable tree and evaluated the cost of the entire tree. With this patch we can decide to trim-out branches of the tree that are not profitable to vectorizer. Also, increase the max depth from 6 to 12. In the worse possible case where all of the code is made of diamond-shaped graph this can bring the cost to 2**10, but diamonds are not very common. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184681 91177308-0d34-0410-b5e6-96231b3b80d8
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