Get rid of some more getOpcode calls.

This also fixes potential problems in ARMBaseInstrInfo routines not recognizing thumb1 instructions when 32-bit and 16-bit instructions mix.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77218 91177308-0d34-0410-b5e6-96231b3b80d8
6 files changed