[Bug c++/11738] New: ICE "could not split insn" building libstdc++-v3

["steve at chelsio dot com" <gcc-bugzilla at gcc dot gnu dot org>]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11738

           Summary: ICE "could not split insn" building libstdc++-v3
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: critical
          Priority: P1
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: steve at chelsio dot com
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: xscale-unknown-elf

CVS, fresh 'cvs update' run 2003-07-29 1630PDT.
Created combined tree per the simtest-howto.
Configured with "../combined/configure --target=xscale-elf
--prefix=/usr/local/xscale --with-gnu-as --with-gnu-ld --with-newlib
--disable-nls --enable-languages=c,c++"
Ensuing make fails thus:
make[6]: Entering directory
`/users/steve/gnu-toolchain/build.arm/xscale-elf/iwmmxt/libstdc++-v3/src'
[ snip ]
/users/steve/gnu-toolchain/build.arm/gcc/xgcc -shared-libgcc
-B/users/steve/gnu-toolchain/build
.arm/gcc/ -nostdinc++
-L/users/steve/gnu-toolchain/build.arm/xscale-elf/iwmmxt/libstdc++-v3/src
 -L/users/steve/gnu-toolchain/build.arm/xscale-elf/iwmmxt/libstdc++-v3/src/.libs
-nostdinc -B/u
sers/steve/gnu-toolchain/build.arm/xscale-elf/iwmmxt/newlib/ -isystem
/users/steve/gnu-toolchai
n/build.arm/xscale-elf/iwmmxt/newlib/targ-include -isystem
/users/steve/gnu-toolchain/combined/
newlib/libc/include -B/usr/local/xscale/xscale-elf/bin/
-B/usr/local/xscale/xscale-elf/lib/ -is
ystem /usr/local/xscale/xscale-elf/include -isystem
/usr/local/xscale/xscale-elf/sys-include -L
/users/steve/gnu-toolchain/build.arm/ld -mcpu=iwmmxt -nostdinc++
-I/users/steve/gnu-toolchain/b
uild.arm/xscale-elf/iwmmxt/libstdc++-v3/include/xscale-elf
-I/users/steve/gnu-toolchain/build.a
rm/xscale-elf/iwmmxt/libstdc++-v3/include
-I../../../../../combined/libstdc++-v3/libsupc++ -I..
/../../../../combined/libstdc++-v3/libmath -O2 -O -g -O2 -mcpu=iwmmxt
-fno-implicit-templates -
Wall -Wno-format -W -Wwrite-strings -fdiagnostics-show-location=once -c
../../../../../combined
/libstdc++-v3/src/codecvt.cc -o codecvt.o
../../../../../combined/libstdc++-v3/src/codecvt.cc: In member function `
   virtual int std::codecvt<char, char, mbstate_t>::do_length(mbstate_t&, const
   char*, const char*, long unsigned int) const':
../../../../../combined/libstdc++-v3/src/codecvt.cc:113: error: could not split
   insn
(insn:HI 89 108 58 bits/stl_algobase.h:148 (parallel [
            (set (reg/v/f:SI 2 r2 [orig:78 __b ] [78])
                (if_then_else:SI (geu (reg:SI 3 r3 [81])
                        (reg:SI 1 r1 [84]))
                    (plus:SI (reg:SI 0 r0)
                        (const_int 4 [0x4]))
                    (reg/v/f:SI 2 r2 [orig:78 __b ] [78])))
            (clobber (reg:CC 24 cc))
        ]) 228 {*ifcompare_plus_move} (insn_list 21 (insn_list 22 (insn_list 94
(insn_list 32 (
insn_list 95 (nil))))))
    (expr_list:REG_DEAD (reg:SI 3 r3 [81])
        (expr_list:REG_DEAD (reg:SI 1 r1 [84])
            (expr_list:REG_DEAD (reg:SI 0 r0)
                (expr_list:REG_UNUSED (reg:CC 24 cc)
                    (nil))))))
../../../../../combined/libstdc++-v3/src/codecvt.cc:113: internal compiler error: in
   final_scan_insn, at final.c:2443
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make[6]: *** [codecvt.lo] Error 1
make[6]: Leaving directory
`/users/steve/gnu-toolchain/build.arm/xscale-elf/iwmmxt/libstdc++-v3
/src'
make[5]: *** [all-recursive] Error 1
make[5]: Leaving directory
`/users/steve/gnu-toolchain/build.arm/xscale-elf/iwmmxt/libstdc++-v3
'
make[4]: *** [all-recursive-am] Error 2
make[4]: Leaving directory
`/users/steve/gnu-toolchain/build.arm/xscale-elf/iwmmxt/libstdc++-v3
'
make[3]: *** [multi-do] Error 1
make[3]: Leaving directory
`/users/steve/gnu-toolchain/build.arm/xscale-elf/libstdc++-v3'
make[2]: *** [all-multi] Error 2
make[2]: Leaving directory
`/users/steve/gnu-toolchain/build.arm/xscale-elf/libstdc++-v3'
make[1]: *** [all-recursive-am] Error 2
make[1]: Leaving directory
`/users/steve/gnu-toolchain/build.arm/xscale-elf/libstdc++-v3'
make: *** [all-target-libstdc++-v3] Error 2