2 Commits

Author	SHA1	Message	Date
Nadav Rotem	9ce0f779bc	SLP Vectorizer: Disable the vectorization of non power of two chains, such as <3 x float>, because we dont have a good cost model for these types. ... llvm-svn: 187265	2013-07-26 22:53:11 +00:00
Nadav Rotem	cf0dcdc71c	When we vectorize across multiple basic blocks we may vectorize PHINodes that create a cycle. We already break the cycle on phi-nodes, but arithmetic operations are still uplicated. This patch adds code that checks if the operation that we are vectorizing was vectorized during the visit of the operands and uses this value if it can. ... llvm-svn: 186883	2013-07-22 22:18:07 +00:00