[Bug c++/54986] New: Internal Error: segmentation fault

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54986

             Bug #: 54986
           Summary: Internal Error: segmentation fault
    Classification: Unclassified
           Product: gcc
           Version: 4.7.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: vanicat@debian.org


When compiling giac, I've an Internal error: Segmentation fault with
gcc-4.7 and -O2. Using some newer version of some library solved this, but I
believe a SEGV in gcc is alway a bug. Compiling without -O2 is successful.

The error:

$ g++-4.7 -O2 -c foo-4.7.cc
prog.cc: In function âbool giac::is_return(const giac::gen&, giac::gen&)â:
prog.cc:8046:1: internal compiler error: Erreur de segmentation
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.7/README.Bugs> for instructions.
Preprocessed source stored into /tmp/cc4J9upy.out file, please attach this to
your bugreport.
$ g++-4.7  -c foo-4.7.cc
$