http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49676
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-07-11 13:00:57 UTC --- Created attachment 24739 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24739 gcc47-pr49676-const.patch I've noticed that int_loc_descriptor sometimes emits too large ops to build large constants, many constants can be actually emitted using shorter sequences of more, but smaller, ops, e.g. DW_OP_lit31 DW_OP_lit31 DW_OP_shl is just 3 bytes, while DW_OP_constu 0xf80000000 is 7 bytes long. Similarly, DW_OP_plus_uconst isn't always a win.
