[Bug target/52488] avr-*: internal compiler error: in extract_insn, at recog.c:2123

["ralf_corsepius at rtems dot org" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52488

--- Comment #2 from Ralf Corsepius <ralf_corsepius at rtems dot org> 2012-03-12 06:21:42 UTC ---
Created attachment 26876
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26876
*.i of the file triggering the ICE

This *.i was created from today's (ca. 2012-03-12 05:00 UTC) 
gcc from gcc-4_7-branch

../gcc-4.7.0-RC-20120302/configure --prefix=/opt/rtems-4.11
--bindir=/opt/rtems-4.11/bin --exec_prefix=/opt/rtems-4.11
--includedir=/opt/rtems-4.11/include --libdir=/opt/rtems-4.11/lib
--libexecdir=/opt/rtems-4.11/libexec --mandir=/opt/rtems-4.11/share/man
--infodir=/opt/rtems-4.11/share/info --datadir=/opt/rtems-4.11/share
--build=x86_64-unknown-linux-gnu --host=x86_64-unknown-linux-gnu
--target=avr-rtems4.11 --disable-libstdcxx-pch --with-gnu-as --with-gnu-ld
--verbose --with-newlib --with-system-zlib --disable-nls
--without-included-gettext --disable-win32-registry
--enable-version-specific-runtime-libs --enable-threads --disable-lto
--disable-plugin --enable-newlib-io-c99-formats --enable-newlib-iconv
--enable-languages=c
...
make
...
/builddir/build/BUILD/rtems-4.11-avr-rtems4.11-gcc-4.7.0/build/./gcc/xgcc
-B/builddir/build/BUILD/rtems-4.11-avr-rtems4.11-gcc-4.7.0/build/./gcc/
-nostdinc
-B/builddir/build/BUILD/rtems-4.11-avr-rtems4.11-gcc-4.7.0/build/avr-rtems4.11/tiny-stack/newlib/
-isystem
/builddir/build/BUILD/rtems-4.11-avr-rtems4.11-gcc-4.7.0/build/avr-rtems4.11/tiny-stack/newlib/targ-include
-isystem
/builddir/build/BUILD/rtems-4.11-avr-rtems4.11-gcc-4.7.0/gcc-4.7.0-RC-20120302/newlib/libc/include
-B/opt/rtems-4.11/avr-rtems4.11/bin/ -B/opt/rtems-4.11/avr-rtems4.11/lib/
-isystem /opt/rtems-4.11/avr-rtems4.11/include -isystem
/opt/rtems-4.11/avr-rtems4.11/sys-include  -mmcu=at90s2313
-DPACKAGE_NAME=\"newlib\" -DPACKAGE_TARNAME=\"newlib\"
-DPACKAGE_VERSION=\"1.20.0\" -DPACKAGE_STRING=\"newlib\ 1.20.0\"
-DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -I.
-I../../../../../../gcc-4.7.0-RC-20120302/newlib/libc/posix -Os
-DPREFER_SIZE_OVER_SPEED -mcall-prologues -D_COMPILING_NEWLIB -DMALLOC_PROVIDED
-DEXIT_PROVIDED -DSIGNAL_PROVIDED -DREENTRANT_SYSCALLS_PROVIDED
-DHAVE_NANOSLEEP -DHAVE_BLKSIZE -DHAVE_FCNTL -DHAVE_ASSERT_FUNC -D_NO_GETLOGIN
-D_NO_GETPWENT -D_NO_GETUT -D_NO_GETPASS -D_NO_SIGSET -D_NO_WORDEXP -D_NO_POPEN
-fno-builtin     -D_GNU_SOURCE -g -O2 -c -o lib_a-glob.o `test -f 'glob.c' ||
echo '../../../../../../gcc-4.7.0-RC-20120302/newlib/libc/posix/'`glob.c
../../../../../../gcc-4.7.0-RC-20120302/newlib/libc/posix/glob.c: In function
'glob':
../../../../../../gcc-4.7.0-RC-20120302/newlib/libc/posix/glob.c:206:1: error:
unrecognizable insn:
(insn/f 305 304 306 2 (set (reg:QI 28 r28)
        (plus:QI (reg:QI 28 r28)
            (const_int -2050 [0xfffffffffffff7fe])))
../../../../../../gcc-4.7.0-RC-20120302/newlib/libc/posix/glob.c:160 -1
     (expr_list:REG_CFA_ADJUST_CFA (set (reg/f:HI 28 r28)
            (plus:HI (reg/f:HI 28 r28)
                (const_int -2050 [0xfffffffffffff7fe])))
        (nil)))
../../../../../../gcc-4.7.0-RC-20120302/newlib/libc/posix/glob.c:206:1:
internal compiler error: in extract_insn, at recog.c:2123

One-tree-style bootstrap (comprising newlib), using
avr-rtems4.11-binutils-2.22, newlib-1.20 + rtems patches (glob.c is part of
newlib)
on fedora-16-x86_64.