http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50644
--- Comment #13 from Andi Kleen <andi-gcc at firstfloor dot org> 2011-10-20 16:44:42 UTC --- I only have a core file. It's really hard to catch the correct lto1 in gdb in a complex LTO build. The only sane way I found to at least get some gdb information is to use -dH and use the corefile. But then calling debug_tree doesn't work of course.
