[Bug target/49856] New: ICE when compiling mktime.c (gnulib, embedded in libvirt)

["tg at mirbsd dot org" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49856

           Summary: ICE when compiling mktime.c (gnulib, embedded in
                    libvirt)
           Product: gcc
           Version: 4.4.6
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: tg@mirbsd.org


Created attachment 24836
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24836
preprocessed source exhibiting the problem

tg@zigo:~ $ m68k-linux-gnu-gcc -O2 -c y.i                                       
y.i: In function ‘ranged_convert’:
y.i:632: internal compiler error: in m68k_sched_issue_rate, at
config/m68k/m68k.c:5877
Please submit a full bug report,
with preprocessed source if appropriate.

tg@zigo:~ $ gdb --args /home/tg/Xg/gcc-4.4-4.4.6/build/gcc/cc1 -fpreprocessed
y.i -m68020 -O2 -o y.s          

(gdb) b fancy_abort 
Breakpoint 1 at 0x4c1850: file ../../src/gcc/diagnostic.c, line 711.

(gdb) frame 1
#1  0x0000000000754f2d in m68k_sched_issue_rate () at
../../src/gcc/config/m68k/m68k.c:5877
5877          gcc_unreachable ();
(gdb) list m68k_sched_issue_rate
5860    }
5861
5862    /* Return maximal number of insns that can be scheduled on a single
cycle.  */
5863    static int
5864    m68k_sched_issue_rate (void)
5865    {
5866      switch (m68k_sched_cpu)
5867        {
5868        case CPU_CFV1:
5869        case CPU_CFV2:
(gdb) 
5870        case CPU_CFV3:
5871          return 1;
5872
5873        case CPU_CFV4:
5874          return 2;
5875
5876        default:
5877          gcc_unreachable ();
5878          return 0;
5879        }
(gdb) print m68k_sched_cpu
$1 = CPU_UNKNOWN