[Bug middle-end/55889] [4.8 Regression] ICE: in move_op_ascend, at sel-sched.c:6153 with -fschedule-insns -fselective-scheduling

[dje at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55889

--- Comment #15 from David Edelsohn <dje at gcc dot gnu.org> 2013-01-21 15:16:04 UTC ---
libbacktrace only supports ELF file format and AIX does not use ELF, so
libbacktrace will not work on AIX.

Also, you patch called libbacktrace unilaterally, even without any verbose
options and broke regular testing on AIX, which is not cool.