[AArch64] Fold adds with tprel_lo12_nc and secrel_lo12 into a following ldr/str

Differential Revision: https://reviews.llvm.org/D44355

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327316 91177308-0d34-0410-b5e6-96231b3b80d8
5 files changed