www-todo: We assume accesses to fixed-size arrays are in-bounds

git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@223605 91177308-0d34-0410-b5e6-96231b3b80d8
www-todo: No need to directly integrate with the basic block vectorizer

git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@223606 91177308-0d34-0410-b5e6-96231b3b80d8