[Bug target/55928] New: m32c ICE building libgcc2

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55928

             Bug #: 55928
           Summary: m32c ICE building libgcc2
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: joel@gcc.gnu.org


TARGET: m32c-rtems4.11

probably also on m32c-elf but need to confirm

xgcc (GCC) 4.8.0 20130108 (experimental) [trunk revision 195030]

/home2/joel/build/b-m32c-gcc/./gcc/xgcc -B/home2/joel/build/b-m32c-gcc/./gcc/
-nostdinc -B/home2/joel/build/b-m32c-gcc/m32c-rtems4.11/newlib/ -isystem
/home2/joel/build/b-m32c-gcc/m32c-rtems4.11/newlib/targ-include -isystem
/users/joel/test-gcc/gcc-svn/newlib/libc/include
-B/users/joel/test-gcc/install-svn/m32c-rtems4.11/bin/
-B/users/joel/test-gcc/install-svn/m32c-rtems4.11/lib/ -isystem
/users/joel/test-gcc/install-svn/m32c-rtems4.11/include -isystem
/users/joel/test-gcc/install-svn/m32c-rtems4.11/sys-include    -g -O2
-mcpu=m32cm -O2
-I/users/joel/test-gcc/gcc-svn/libgcc/../newlib/libc/sys/rtems/include -g -O2
-DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wwrite-strings -Wcast-qual
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem
./include   -g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector
-Dinhibit_libc  -I. -I. -I../../.././gcc -I/users/joel/test-gcc/gcc-svn/libgcc
-I/users/joel/test-gcc/gcc-svn/libgcc/.
-I/users/joel/test-gcc/gcc-svn/libgcc/../gcc
-I/users/joel/test-gcc/gcc-svn/libgcc/../include  -DHAVE_CC_TLS -DUSE_EMUTLS -o
_ffssi2.o -MT _ffssi2.o -MD -MP -MF _ffssi2.dep -DL_ffssi2 -c
/users/joel/test-gcc/gcc-svn/libgcc/libgcc2.c -fvisibility=hidden
-DHIDE_EXPORTS
/users/joel/test-gcc/gcc-svn/libgcc/libgcc2.c: In function '__ffssi2':
/users/joel/test-gcc/gcc-svn/libgcc/libgcc2.c:524:1: error: unable to find a
register to spill in class 'A_REGS'
 }
 ^
/users/joel/test-gcc/gcc-svn/libgcc/libgcc2.c:524:1: error: this is the insn:
(insn 58 56 59 10 (set (reg:HI 0 r0 [orig:26 D.2813 ] [26])
        (zero_extend:HI (mem/u/j:QI (plus:PSI (subreg:PSI (reg:SI 44 [ D.2814
]) 0)
                    (symbol_ref:PSI ("__clz_tab") [flags 0x40] <var_decl
0x7fb135901ab0 __clz_tab>)) [0 __clz_tab S1 A8])))
/users/joel/test-gcc/gcc-svn/libgcc/libgcc2.c:522 115 {zero_extendqihi2}
     (expr_list:REG_DEAD (reg:SI 44 [ D.2814 ])
        (nil)))
/users/joel/test-gcc/gcc-svn/libgcc/libgcc2.c:524:1: internal compiler error:
in spill_failure, at reload1.c:2122
0x85b775 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
    /users/joel/test-gcc/gcc-svn/gcc/rtl-error.c:110
0x85b40f spill_failure
    /users/joel/test-gcc/gcc-svn/gcc/reload1.c:2122
0x85b40f find_reload_regs
    /users/joel/test-gcc/gcc-svn/gcc/reload1.c:2048
0x85b40f select_reload_regs
    /users/joel/test-gcc/gcc-svn/gcc/reload1.c:2068
0x85b40f reload(rtx_def*, int)
    /users/joel/test-gcc/gcc-svn/gcc/reload1.c:989
0x787586 do_reload
    /users/joel/test-gcc/gcc-svn/gcc/ira.c:4636
0x787586 rest_of_handle_reload
    /users/joel/test-gcc/gcc-svn/gcc/ira.c:4737