------- Comment #2 from pinskia at gcc dot gnu dot org 2008-09-21 00:32 ------- While looking a different bug dealing with invariant motion, I noticed that estimate_reg_pressure_cost does not take into account the mode of the new register. This seems like a big issue. Also init_set_costs always uses SImode which is not a good representation of the register pressure in general.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37471
