[llvm] [WebAssembly][GlobalISel] Implement pointer and memory ops. (PR #206885)

[Demetrius Kanios via llvm-commits]

QuantumSegfault wrote:

I guess I was a bit hasty reverting. It's been so long since I originally set this all up (the draft; #157161) that I totally forgot this: https://github.com/llvm/llvm-project/pull/157161/changes#diff-81d2592903c78389e9856f9ef47d372acdd38fb13bca434cf0ea6ef61a55ec7e

It's not a new problem, and it's easily fixed. The tablegen patterns just need a bit more info to work with for the GISel importer.

https://github.com/llvm/llvm-project/pull/206885