Revert r314892

    llvm_unreachable("unexpected opcode!");

  case AVR::JMPk:

  case AVR::CALLk:

    return true;

    assert(BrOffset >= 0 && "offset must be absolute address");

    return isUIntN(16, BrOffset);

  case AVR::RCALLk:

  case AVR::RJMPk:

    return isIntN(13, BrOffset);

  }

}

unsigned AVRInstrInfo::insertIndirectBranch(MachineBasicBlock &MBB,

                                            MachineBasicBlock &NewDestBB,

                                            const DebugLoc &DL,

                                            int64_t BrOffset,

                                            RegScavenger *RS) const {

    // This method inserts a *direct* branch (JMP), despite its name.

    // LLVM calls this method to fixup unconditional branches; it never calls

    // insertBranch or some hypothetical "insertDirectBranch".

    // See lib/CodeGen/RegisterRelaxation.cpp for details.

    // We end up here when a jump is too long for a RJMP instruction.

    auto &MI = *BuildMI(&MBB, DL, get(AVR::JMPk)).addMBB(&NewDestBB);

    return getInstSizeInBytes(MI);

}

} // end of namespace llvm

  bool isBranchOffsetInRange(unsigned BranchOpc,

                             int64_t BrOffset) const override;

  unsigned insertIndirectBranch(MachineBasicBlock &MBB,

                                MachineBasicBlock &NewDestBB,

                                const DebugLoc &DL,

                                int64_t BrOffset,

                                RegScavenger *RS) const override;

private:

  const AVRRegisterInfo RI;

};