[Bug debug/51536] New: ICE on mips64 with -march=octeon -O2 -g -fno-omit-frame-pointer

["pinskia at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51536

             Bug #: 51536
           Summary: ICE on mips64 with -march=octeon -O2 -g
                    -fno-omit-frame-pointer
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: pinskia@gcc.gnu.org


t.c: In function 'can_migrate_task':
t.c:11:1: internal compiler error: in maybe_record_trace_start, at
dwarf2cfi.c:2244
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
--- CUT ---
int can_migrate_task(int *p, int *sd)
{
 int tsk_cache_hot;
 if (p[1] == 5)
   tsk_cache_hot = 1;
 else
   tsk_cache_hot = p[0] < 500000ULL;
 if (!tsk_cache_hot || *sd > 1)
  return 1;
 return 0;
}
--- CUT ---
Branch delay slot is putting:
           (insn/f 52 10 11 (set (reg/f:DI 30 $fp)
                    (reg/f:DI 29 $sp)) 276 {*movdi_64bit}
                 (nil))

Which causes the ICE.  This is related to PR 51471 but slightly different.