$ cat pushdecl.c void bar () { { if (foo) foo (); } } $ gcc -O pushdecl.c pushdecl.c: In function ‘bar’: pushdecl.c:1: error: ‘foo’ undeclared (first use in this function) pushdecl.c:1: error: (Each undeclared identifier is reported only once pushdecl.c:1: error: for each function it appears in.) pushdecl.c:1: internal compiler error: tree check: expected class ‘declaration’, have ‘exceptional’ (error_mark) in pushdecl, at c-decl.c:1989 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://www.suse.de/feedback> for instructions.
-- Summary: [4.0 regression] ICE in pushdecl Product: gcc Version: 4.0.0 Status: UNCONFIRMED Keywords: ice-on-invalid-code Severity: normal Priority: P2 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: schwab at suse dot de CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18946