[Bug c/25491] New: gcc segfaults compiling very long expressions

["geckosenator at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

I was writing a program that evaluates an operator tree with variables
constants and operators.  Rather than recursively iterate the tree many times
for different variable values to evaluate it.. I printed the tree into a source
file, compiled it as a shared library with gcc and dynamically linked it and
call the function.  In my case this is a much faster solution.. unless the tree
is too big:

$ /usr/bin/gcc -shared -o libevaleqn.so evaleqn.c
evaleqn.c:2:9: warning: null character(s) ignored
gcc: Internal error: Segmentation fault (program cc1)
Please submit a full bug report.
See <URL:http://bugs.gentoo.org/> for instructions.

For smaller sizes it compiles fine.  I'm guessing this is a limitation on the
length of expressions supported by gcc.

I tested this on x86_64 (gcc 3.4.4) and i686 (gcc 3.4.4 and 3.3.6) and the
results are the same.


-- 
           Summary: gcc segfaults compiling very long expressions
           Product: gcc
           Version: 3.4.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: geckosenator at gmail dot com
 GCC build triplet: i686-pc-linux
  GCC host triplet: i686-pc-linux
GCC target triplet: i686-pc-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25491