[llvm] [AArch64] A simple tool for generating a scheduling model draft from a SWOG (PR #131525)

[Ricardo Jesus via llvm-commits]

rj-jesus wrote:

> > It does not map instruction names in SWOG to names in LLVM.
> 
> That sounds like it might be the hard bit, at least it looks like it would require some manual effort.

We have a utility tool that takes an instruction name and maps it to LLVM opcodes. For example, given `ADD (vectors, unpredicated)` it produces:
```
  ADD_ZZZ_B
  ADD_ZZZ_H
  ADD_ZZZ_S
  ADD_ZZZ_D
```
Maybe it could be useful to extend this script?

https://github.com/llvm/llvm-project/pull/131525