Benjamin Kramer ff566d8f44 LoopVectorize: Remove quadratic behavior the local CSE.
Doing this with a hash map doesn't change behavior and avoids calling
isIdenticalTo O(n^2) times. This should probably eventually move into a utility
class shared with EarlyCSE and the limited CSE in the SLPVectorizer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193926 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-02 13:39:00 +00:00
..
2013-10-21 19:43:56 +00:00