[PATCH] D98534: [M68k] Introduce DReg bead

[Ricky Taylor via Phabricator via llvm-commits]

ricky26 added a comment.

It acts like a default when decoding (in one of the later patches). The DA bead is still needed since it's used for instructions where it can be either an address or data register.

As it stands, I could rename it but it might be a bit misleading. (Existing cases which don't need a specific register kind would all use `AReg`.)

Alternatively, perhaps I could add `AReg` and enforce that `DReg`/`AReg` cannot be combined with `DA` and keep `Reg` separate, solely for use with `DA`. I didn't think of that at the time.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D98534/new/

https://reviews.llvm.org/D98534