GitLab upgrade postponds on 8 Feb 2023 from 2.00 pm (AEDT) to 3.00 pm (AEDT). During the update, GitLab and Mattermost services will not be available. If you have any concerns with this, please talk to us at N110 (b) CSIT building.
(for callee saved regs, we insert push/pop before reg alloc. and after allocation, remove unnecessary ones)
internal id and machine id do not persist during serialization and restoration. Currently I use fixed ID for machine registers. But internal id is still generated, this might be a problem in the future.