[ARMv8] Add some disassembly tests for Thumb sevl/sevl.w


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192106 91177308-0d34-0410-b5e6-96231b3b80d8
[AArch64] Add support for NEON scalar arithmetic instructions:
SQDMULH, SQRDMULH, FMULX, FRECPS, and FRSQRTS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192107 91177308-0d34-0410-b5e6-96231b3b80d8
[ARM] Improve build attributes emission.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192111 91177308-0d34-0410-b5e6-96231b3b80d8