I want to roughly figure out the steps/modules to implement a codegen for a new architecture (like a high level design doc). I also need to do a rough estimation of how much time would be needed to implement each module, this may be not easy. Any pointers/references would be highly appreciated.
Great tschuett, after implementing the skeleton for GlobalISel Skeleton for one instruction (ret void) as seen in ⚙ D83100 [PPC][GlobalISel] Add initial GlobalIsel infrastructure, what are the next steps. I see PPC.td and PPCRegisterBanks.td files in your skeleton. Wondering when to implement other td files and in what order. Ideally, I would like to implement one instruction at a time but even to do that, it looks like we need all the td files in place. Thanks a lot. Your skeleton link is very useful!