https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105807
--- Comment #4 from Andrew Benson <abensonca at gcc dot gnu.org> --- A possibly related case: module tm type :: st end type st type :: resourceManager class (*), pointer :: resource => null() integer , pointer :: counter => null() end type resourceManager interface resourceManager module procedure resourceManager end interface type :: wrap type(st), pointer :: obj => null() type(resourceManager) :: manager end type wrap interface wrap module procedure wrapConstructN end interface contains function resourceManagerConstructor(resource) result(self) implicit none type(resourceManager) :: self class(*), intent(in ), pointer :: resource self%resource => resource allocate(self%counter) self%counter=1 return end function resourceManagerConstructor function wrapConstructN(i) result(self) implicit none type(wrap) :: self integer, intent(in ) :: i type(st), pointer :: st_ allocate(self%obj) self%obj=st() self%manager=resourceManager(self%obj) return end function wrapConstructN end module tm $ gfortran -c bug.F90 -o bug -g bug.F90:45:42: 45 | self%manager=resourceManager(self%obj) | 1 internal compiler error: in fold_convert_loc, at fold-const.cc:2627 0x770b18 fold_convert_loc(unsigned int, tree_node*, tree_node*) ../../gcc-git-unpatched/gcc/fold-const.cc:2627 0xa65649 gfc_trans_subcomponent_assign ../../gcc-git-unpatched/gcc/fortran/trans-expr.cc:9053 0xa667c9 gfc_trans_structure_assign(tree_node*, gfc_expr*, bool, bool) ../../gcc-git-unpatched/gcc/fortran/trans-expr.cc:9246 0xa67531 gfc_conv_structure(gfc_se*, gfc_expr*, int) ../../gcc-git-unpatched/gcc/fortran/trans-expr.cc:9313 0xa6ae35 gfc_trans_assignment_1 ../../gcc-git-unpatched/gcc/fortran/trans-expr.cc:11742 0xa1b307 trans_code ../../gcc-git-unpatched/gcc/fortran/trans.cc:1950 0xa4d81d gfc_generate_function_code(gfc_namespace*) ../../gcc-git-unpatched/gcc/fortran/trans-decl.cc:7674 0xa1f6d1 gfc_generate_module_code(gfc_namespace*) ../../gcc-git-unpatched/gcc/fortran/trans.cc:2370 0x9c73f5 translate_all_program_units ../../gcc-git-unpatched/gcc/fortran/parse.cc:6708 0x9c73f5 gfc_parse_file() ../../gcc-git-unpatched/gcc/fortran/parse.cc:7027 0xa1804f gfc_be_parse_file ../../gcc-git-unpatched/gcc/fortran/f95-lang.cc:229 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions.