| BCC Cond CLabel
| MTCTR Reg
- | BCTR
+ | BCTR DestInfo
| BL Imm [Reg] -- with list of argument regs
| BCTRL [Reg]
| ADD Reg Reg RI -- dst, src1, src2
- | SUBF Reg Reg RI -- dst, src1, src2
+ | SUBF Reg Reg Reg -- dst, src1, src2 ; dst = src2 - src1
| MULLW Reg Reg RI
| DIVW Reg Reg Reg
| DIVWU Reg Reg Reg