LoadStoreVectorizer crashes due to unsized type

When we skip bitcasts while looking for GEP in LoadSoreVectorizer
we should also verify that the type is sized otherwise we assert

Differential Revision: https://reviews.llvm.org/D45709

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@330221 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed