Use `-passes="regallocgreedy<[all|sgpr|wwm|vgpr]>` to insert the greedy RA with a filter and `-regalloc-npm=<type>` to control which RA to use in existing pipeline.
Use `-passes="regallocgreedy<[all|sgpr|wwm|vgpr]>` to insert the greedy RA with a filter and `-regalloc-npm=<type>` to control which RA to use in existing pipeline.