[llvm] [AArch64][SPIRV][GlobalISel] Migrate target-specific wip_match_opcode combines to MIR-pattern (PR #222903)

[Kaitlin Peng via llvm-commits]

https://github.com/kmpeng commented:

I only have experience with the code under `llvm/lib/Target/SPIRV`, but those changes LGTM. Not going to approve the PR since I can't speak to the rest of it.

https://github.com/llvm/llvm-project/pull/222903