https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63155
--- Comment #14 from Richard Biener <rguenth at gcc dot gnu.org> --- The plan is to re-write coalescings conflict graph by using SSA-based liveness queries according to https://hal.inria.fr/inria-00192219 Well, at least I'd like to experiment with that as it might be useful in other places as well (cost considerations wrt register pressure changes). Only experiments will show if we trade too much compile-time for the reduction in memory use (not computing liveness / conflict graph).
