[PATCH] D105714: WIP/RFC: Generic MachineInstr convenience wrappers.

[Amara Emerson via Phabricator via llvm-commits]

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Instead of code patterns like:

  if (MI.getOpcode() == TargetOpcode::G_LOAD)
    Ptr = MI.getOperand(1);

having some wrappers could make the opcode checking a bit shorter, and also allow us to define some abstractions over the raw MachineInstr specific to a particular generic operation. Here's an example of how that could work with G_LOAD, using automatic `bool` and `MachineInstr*` conversions.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D105714

Files:
  llvm/include/llvm/CodeGen/GlobalISel/GenericInstWrapper.h
  llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp

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