This PR enables `G_ADD` and immediate dependencies (relavent ext and trunc related ops) to be fully legalized and selected. The most important change made is getting the boilerplate for RegBankSelect working. Split from #157161.
This PR enables `G_ADD` and immediate dependencies (relavent ext and trunc related ops) to be fully legalized and selected. The most important change made is getting the boilerplate for RegBankSelect working. Split from #157161.