[Bug rtl-optimization/35841] New: [ira] segfault while building libgcc

[mstein dot lists at googlemail dot com]

Hi,
during the configure run for libgcc xgcc fails with a segfault.

Here is a backtrace:

#0  0x00002b9b80f4e07b in raise () from /lib/libc.so.6
(gdb) bt
#0  0x00002b9b80f4e07b in raise () from /lib/libc.so.6
#1  0x00002b9b80f4f84e in abort () from /lib/libc.so.6
#2  0x0000000000511845 in diagnostic_action_after_output (context=0x2586,
diagnostic=0x2586)
    at /home/mstein/svn/ira/gcc/diagnostic.c:664
#3  0x0000000000511994 in diagnostic_report_diagnostic (context=0xcc6620,
    diagnostic=0x7fff29ddfec0) at /home/mstein/svn/ira/gcc/diagnostic.c:400
#4  0x0000000000511c46 in internal_error (gmsgid=<value optimized out>)
    at /home/mstein/svn/ira/gcc/diagnostic.c:600
#5  0x00000000006e1c60 in crash_signal (signo=11) at
/home/mstein/svn/ira/gcc/toplev.c:602
#6  <signal handler called>
#7  0x00000000006e01a6 in default_secondary_reload (in_p=0 '\0', x=0x0,
    reload_class=EXTRA_FP_REGS, reload_mode=QImode, sri=0x7fff29de0280)
    at /home/mstein/svn/ira/gcc/targhooks.c:595
#8  0x00000000006892cc in secondary_reload_class (in_p=0 '\0',
class=EXTRA_FP_REGS, mode=QImode,
    x=0x0) at /home/mstein/svn/ira/gcc/reload.c:525
#9  0x000000000067cefb in memory_move_secondary_cost (mode=QImode,
class=EXTRA_FP_REGS, in=0)
    at /home/mstein/svn/ira/gcc/regclass.c:748
#10 0x0000000000986f51 in init_ira () at /home/mstein/svn/ira/gcc/ira.c:323
#11 0x00000000006e3320 in backend_init_target () at
/home/mstein/svn/ira/gcc/toplev.c:1970
#12 0x00000000006e3f7d in toplev_main (argc=1, argv=0x0) at
/home/mstein/svn/ira/gcc/toplev.c:2017
#13 0x00002b9b80f3b4ca in __libc_start_main () from /lib/libc.so.6
#14 0x0000000000403d1a in _start () at ../sysdeps/x86_64/elf/start.S:113

gcc version 4.4.0 20080328 (experimental) [ira revision 133942] (GCC)


-- 
           Summary: [ira] segfault while building libgcc
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mstein dot lists at googlemail dot com
  GCC host triplet: x86_64-linux-gnu
GCC target triplet: sparc-elf


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35841