[llvm] [WebAssembly] Lower narrow i128 multiplies more efficiently (PR #202461)

[Derek Schuff via llvm-commits]

dschuff wrote:

This looks like a pretty generic transformation, not specific to Wasm. I wonder if it would make more sense as a target-independent DAG combine. Or maybe there is some existing logic that we just don't happen to be triggering?

https://github.com/llvm/llvm-project/pull/202461