I'm seeing the following ICE with current trunk. This goes back at least to 20070720.
(sid)25719:[EMAIL PROTECTED]: ~] /usr/lib/gcc-snapshot/bin/g++ -c -O2 fox1.6-fxgifio.cc fox1.6-fxgifio.cc: In function 'bool fxsaveGIF(FXStream&)': fox1.6-fxgifio.cc:10: internal compiler error: in set_value_range, at tree-vrp.c:326 Please submit a full bug report, with preprocessed source if appropriate. -- Summary: [4.3 Regression] ICE in set_value_range, at tree- vrp.c:325 Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: tbm at cyrius dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33134