------- Comment #8 from aoliva at gcc dot gnu dot org 2009-09-03 21:28 ------- Just started looking into the proposed patch and, without actually looking at the code, I wonder: should USEFUL_INSN_P really hold for debug insns? I mean, they're useful for something, but maybe not in the sense of that macro :-)
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41240