When running gfortran gfortran.dg/allocate_alloc_opt_9.f90 I get an ICE with free_expr0(): Bad expr type
That happens for the second call to gfc_match_allocate and the ICE happens via gfc_match_allocate (match.c:309) -> gfc_free_expr valgrind writes: ==2974== Invalid read of size 4 ==2974== at 0x508BC9: gfc_match_allocate (match.c:3098) ==2974== by 0x518FA9: match_word (parse.c:65) ==2974== by 0x519EFC: decode_statement (parse.c:332) If one prints the value of tmp and tmp->expr_type, one gets tmp != NULL and expr_type == 1549556828 ... Daniel checked 4.5.0 and found the same valgrind error. -- Summary: gfortran.dg/allocate_alloc_opt_9.f90: Segfault due to invalid FREE Product: gcc Version: 4.6.0 Status: UNCONFIRMED Keywords: ice-on-invalid-code, error-recovery Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: burnus at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45432