[Bug c/33382] New: internal compiler error: in get_constraint_for_component_ref, at tree-ssa-structalias.c:2454

["akumar at ee dot iitm dot ac dot in" <gcc-bugzilla at gcc dot gnu dot org>]

Hello! I am using Debian's gcc 4.2.1, and I am running into some trouble while
compiling logapp, available at http://logapp.sourceforge.net

Here are the details:
gcc -v -save-temps -Wall -O2   -c -o configuration.o configuration.c
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v
--enable-languages=c,c++,fortran,objc,obj-c++,treelang --prefix=/usr
--enable-shared --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix --enable-nls
--with-gxx-include-dir=/usr/include/c++/4.2 --program-suffix=-4.2
--enable-clocale=gnu --enable-libstdcxx-debug --enable-mpfr
--enable-targets=all --disable-werror --enable-checking=release
--build=i486-linux-gnu --host=i486-linux-gnu --target=i486-linux-gnu
Thread model: posix
gcc version 4.2.1 (Debian 4.2.1-5)
 /usr/lib/gcc/i486-linux-gnu/4.2.1/cc1 -E -quiet -v configuration.c
-mtune=generic -Wall -O2 -fpch-preprocess -o configuration.i
ignoring nonexistent directory "/usr/local/include/i486-linux-gnu"
ignoring nonexistent directory
"/usr/lib/gcc/i486-linux-gnu/4.2.1/../../../../i486-linux-gnu/include"
ignoring nonexistent directory "/usr/include/i486-linux-gnu"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include
 /usr/lib/gcc/i486-linux-gnu/4.2.1/include
 /usr/include
End of search list.
 /usr/lib/gcc/i486-linux-gnu/4.2.1/cc1 -fpreprocessed configuration.i -quiet
-dumpbase configuration.c -mtune=generic -auxbase-strip configuration.o -O2
-Wall -version -o configuration.s
GNU C version 4.2.1 (Debian 4.2.1-5) (i486-linux-gnu)
        compiled by GNU C version 4.2.1 (Debian 4.2.1-5).
GGC heuristics: --param ggc-min-expand=63 --param ggc-min-heapsize=63302
Compiler executable checksum: 679d5de8862f4a3c8f9b9a34b5dbcc68
configuration.c: In function 'get_argid':
configuration.c:567: internal compiler error: in
get_constraint_for_component_ref, at tree-ssa-structalias.c:2454
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-4.2/README.Bugs>.
make: *** [configuration.o] Error 1

Observation: The bug disappears if I remove -O2 from the compiler flags.

Should you require the preprocessed file, please tell me and I shall put it
somewhere where you can pick it up.

Thanks!


-- 
           Summary: internal compiler error: in
                    get_constraint_for_component_ref, at tree-ssa-
                    structalias.c:2454
           Product: gcc
           Version: 4.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: akumar at ee dot iitm dot ac dot in
 GCC build triplet: i486-linux-gnu
  GCC host triplet: i486-linux-gnu
GCC target triplet: i486-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33382