[PATCH] D144687: [GlobalISel][NFC] Add MachineInstr::getFirst[N]{Regs,LLTs}() helpers to extract regs & types.

[Amara Emerson via Phabricator via llvm-commits]

aemerson added a comment.

I’m also wondering for performance reasons whether we should have the types be returned via a single call. With the current patch we call getOperand() twice for each register and I’m not sure if they’ll get optimized to a single call. Maybe:
auto [DstReg, DstTy, Src1Reg, Src1Ty] = MI.getFirst2RegsAndTys();


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https://reviews.llvm.org/D144687