[Bug c/23458] New: ICE on m68k (-O3)

["bas at debian dot org" <gcc-bugzilla at gcc dot gnu dot org>]

gcc 4.0.1-4 ICE's when compiling freesci on m68k:

m68k-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I../.. -I../../src/include    -Wall
-g -O3 -c script.c
../../src/include/gfx_system.h:241: warning: 'gfx_rect_fullscreen' defined but
not used
../../src/include/gfx_widgets.h:73: warning: 'gfxw_point_zero' defined but not used
script.c: In function 'script_dissect':
script.c:440: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
For Debian GNU/Linux specific bug reporting instructions,
see <URL:file:///usr/share/doc/gcc-4.0/README.Bugs>.

See
http://buildd.debian.org/fetch.php?&pkg=freesci&ver=0.3.4c-3&arch=m68k&stamp=1121689384&file=log&as=raw

This occurs only when compiling with -O3.

I'm attaching a preprocessed, cleaned-up c snippet (~100 lines) that
triggers the bug:

crest% gcc -O3 -c test.i
test.i: In function 'script_dissect':
test.i:90: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
For Debian GNU/Linux specific bug reporting instructions,
see <URL:file:///usr/share/doc/gcc-4.0/README.Bugs>.
crest% gcc -v -save-temps -O3 -c test.i
Using built-in specs.
Target: m68k-linux-gnu
Configured with: ../src/configure -v --enable-languages=c,c++,java,objc,treelang
--prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib
--enable-nls --without-included-gettext --enable-threads=posix
--program-suffix=-4.0 --enable-__cxa_atexit --enable-libstdcxx-allocator=mt
--enable-clocale=gnu --enable-libstdcxx-debug --enable-java-gc=boehm
--enable-java-awt=gtk --enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.4.2-gcj-4.0-1.4.2.0/jre --disable-werror
--enable-checking=release m68k-linux-gnu
Thread model: posix
gcc version 4.0.2 20050806 (prerelease) (Debian 4.0.1-4)
 /usr/lib/gcc/m68k-linux-gnu/4.0.2/cc1 -fpreprocessed test.i -quiet -dumpbase
test.i -auxbase test -O3 -version -o test.s
GNU C version 4.0.2 20050806 (prerelease) (Debian 4.0.1-4) (m68k-linux-gnu)
        compiled by GNU C version 4.0.2 20050806 (prerelease) (Debian 4.0.1-4).
GGC heuristics: --param ggc-min-expand=38 --param ggc-min-heapsize=15939
test.i: In function 'script_dissect':
test.i:90: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
For Debian GNU/Linux specific bug reporting instructions,
see <URL:file:///usr/share/doc/gcc-4.0/README.Bugs>.

-- 
           Summary: ICE on m68k (-O3)
           Product: gcc
           Version: 4.0.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bas at debian dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: m68k-linux-gnu
  GCC host triplet: m68k-linux-gnu
GCC target triplet: m68k-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23458