https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113118
Bug ID: 113118 Summary: ICE on assignment of derived types with allocatable class component Product: gcc Version: 13.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: baradi09 at gmail dot com Target Milestone: --- I get an internal compiler error with the following demo code. As far, as I can judge, the code is standard conforming. module bugdemo implicit none type :: base_type character(:), allocatable :: name end type base_type type :: base_type_item class(base_type), allocatable :: item end type base_type_item type, extends(base_type) :: derived_type integer :: val = 0 end type derived_type contains function derived_type_as_item(name, val) result(item) character(*), intent(in) :: name integer, intent(in) :: val type(base_type_item), allocatable :: item item = base_type_item(derived_type(name=name, val=val)) end function derived_type_as_item end module bugdemo Compiling it with gfortran -c bugdemo.f90 results in 23 | item = base_type_item(derived_type(name=name, val=val)) | 1 internal compiler error: in fold_convert_loc, at fold-const.cc:2627 0x69f6fa fold_convert_loc(unsigned int, tree_node*, tree_node*) ../.././gcc/fold-const.cc:2627 0x824e17 gfc_trans_subcomponent_assign ../.././gcc/fortran/trans-expr.cc:9027 0x825a22 gfc_trans_structure_assign(tree_node*, gfc_expr*, bool, bool) ../.././gcc/fortran/trans-expr.cc:9265 0x826808 gfc_conv_structure(gfc_se*, gfc_expr*, int) ../.././gcc/fortran/trans-expr.cc:9332 0x81d6fc gfc_conv_expr(gfc_se*, gfc_expr*) ../.././gcc/fortran/trans-expr.cc:9500 0x829ab5 gfc_trans_assignment_1 ../.././gcc/fortran/trans-expr.cc:11877 0x7e0f77 trans_code ../.././gcc/fortran/trans.cc:2229 0x80f1e9 gfc_generate_function_code(gfc_namespace*) ../.././gcc/fortran/trans-decl.cc:7715 0x7e5641 gfc_generate_module_code(gfc_namespace*) ../.././gcc/fortran/trans.cc:2649 0x785d35 translate_all_program_units ../.././gcc/fortran/parse.cc:6707 0x785d35 gfc_parse_file() ../.././gcc/fortran/parse.cc:7026 0x7dde4f gfc_be_parse_file ../.././gcc/fortran/f95-lang.cc:229 Please submit a full bug report, with preprocessed source. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions.