https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87991
Bug ID: 87991 Summary: ICE in gfc_constructor_append_expr, at fortran/constructor.c:135 Product: gcc Version: 9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: gs...@t-online.de Target Milestone: --- With (presumably) invalid code down to at least gfortran-5 : $ cat z1.f90 program p type t character(:), pointer :: c end type type(t) :: x allocate (character(3) :: x%c) data x%c /'abc'/ end $ cat z2.f90 module m type t character(:), pointer :: c end type end program p use m type(t) :: x allocate (character(3) :: x%c) data x%c /'abc'/ end $ gfortran-9-20181111 -c z1.f90 f951: internal compiler error: Segmentation fault 0xb297bf crash_signal ../../gcc/toplev.c:325 0x5fea1b gfc_constructor_append_expr(splay_tree_s**, gfc_expr*, locus*) ../../gcc/fortran/constructor.c:135 0x60067c formalize_structure_cons ../../gcc/fortran/data.c:645 0x60067c formalize_init_expr ../../gcc/fortran/data.c:682 0x6aa142 do_traverse_symtree ../../gcc/fortran/symbol.c:4151 0x681833 resolve_types ../../gcc/fortran/resolve.c:16647 0x68656c gfc_resolve(gfc_namespace*) ../../gcc/fortran/resolve.c:16733 0x674337 resolve_all_program_units ../../gcc/fortran/parse.c:6064 0x674337 gfc_parse_file() ../../gcc/fortran/parse.c:6314 0x6bc89f gfc_be_parse_file ../../gcc/fortran/f95-lang.c:204