[mips][mips64r6] Sorted *_ENC, *_DESC classes and tests

Differential Revision: http://reviews.llvm.org/D3808


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209129 91177308-0d34-0410-b5e6-96231b3b80d8
Hexagon: Add encoding bits to the mpy instructions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209132 91177308-0d34-0410-b5e6-96231b3b80d8