https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77940
Bug ID: 77940 Summary: ICE in walk_coarray, at fortran/trans-array.c:6684 Product: gcc Version: 7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: gerhard.steinmetz.fort...@t-online.de Target Milestone: --- With invalid code, down to at least 4.8 : $ cat z1.f90 module m type t end type contains subroutine s1(x) class(t) :: x[*] end subroutine s2(x) class(t) :: x(2) call s1(x(1)) end end $ gfortran-7-20161009 -fcoarray=single z1.f90 z1.f90:10:0: call s1(x(1)) internal compiler error: in walk_coarray, at fortran/trans-array.c:6684 0x73ddf0 walk_coarray ../../gcc/fortran/trans-array.c:6684 0x73ddf0 gfc_conv_expr_descriptor(gfc_se*, gfc_expr*) ../../gcc/fortran/trans-array.c:6762 0x75e803 gfc_conv_procedure_call(gfc_se*, gfc_symbol*, gfc_actual_arglist*, gfc_expr*, vec<tree_node*, va_gc, vl_embed>*) ../../gcc/fortran/trans-expr.c:5372 0x7a4dc4 gfc_trans_call(gfc_code*, bool, tree_node*, tree_node*, bool) ../../gcc/fortran/trans-stmt.c:407 0x72439a trans_code ../../gcc/fortran/trans.c:1787 0x7538b8 gfc_generate_function_code(gfc_namespace*) ../../gcc/fortran/trans-decl.c:6257 0x7289e9 gfc_generate_module_code(gfc_namespace*) ../../gcc/fortran/trans.c:2088 0x6de0cd translate_all_program_units ../../gcc/fortran/parse.c:5927 0x6de0cd gfc_parse_file() ../../gcc/fortran/parse.c:6146 0x720e22 gfc_be_parse_file ../../gcc/fortran/f95-lang.c:198