[mips][microMIPS] Add CodeGen support for ADD, ADDIU*, ADDU* and DADD* instructions
Differential Revision: http://reviews.llvm.org/D16454


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265772 91177308-0d34-0410-b5e6-96231b3b80d8
8 files changed