2 Commits

Author	SHA1	Message	Date
Nadav Rotem	a629c3a4f0	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. ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187265 91177308-0d34-0410-b5e6-96231b3b80d8	2013-07-26 22:53:11 +00:00
Nadav Rotem	62657090de	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. ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186883 91177308-0d34-0410-b5e6-96231b3b80d8	2013-07-22 22:18:07 +00:00