[AArch64] Handle vector types in replaceZeroVectorStore.
Summary:
Extend replaceZeroVectorStore to handle more vector type stores,
floating point zero vectors and set alignment more accurately on split
stores.
This is a follow-up change to r286875.
This change fixes PR31038.
Reviewers: MatzeB
Subscribers: mcrosier, aemerson, llvm-commits, rengolin
Differential Revision: https://reviews.llvm.org/D26682
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287142 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed