[mips][micromips] fix filling delay slots for PseudoIndirectBranch_MM

Filling a delay slot in 32bit jump instructions with a 16bit instruction
can cause issues. According to the documentation such an operation is
unpredictable.
This patch adds opcode Mips::PseudoIndirectBranch_MM alongside
Mips::PseudoIndirectBranch and other instructions that are expanded to jr
instruction and do not allow a 16bit instruction in their delay slots.

Patch by Mirko Brkusanin.

Differential Revision: https://reviews.llvm.org/D58507


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@354672 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed