https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71862
Bug ID: 71862
Summary: ICE in gfc_add_component_ref, at fortran/class.c:241
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: ---
Release versions (5, 6, 7) are bailed out, with no backtrace.
Experimental versions (6, 7 tested) give a backtrace.
$ cat z1.f90
program p
type t
integer :: n = 0
integer, pointer :: q => null()
end type
type(t) :: x
print *, associated(x%q)
x = f()
print *, associated(x%q)
contains
function f() result (z)
class(t) :: z
print *, associated(z%q)
end
end
$ gfortran-6 z1.f90
z1.f90:11:26:
function f() result (z)
1
Error: CLASS variable 'z' at (1) must be dummy, allocatable or pointer
(null):0: confused by earlier errors, bailing out
$ gfortran-7-20160710 z1.f90
z1.f90:11:26:
function f() result (z)
1
Error: CLASS variable 'z' at (1) must be dummy, allocatable or pointer
f951: internal compiler error: in gfc_add_component_ref, at fortran/class.c:241
0x66ac54 gfc_add_component_ref(gfc_expr*, char const*)
../../gcc/fortran/class.c:241
0x6ead24 resolve_ordinary_assign
../../gcc/fortran/resolve.c:9751
0x6ead24 gfc_resolve_code(gfc_code*, gfc_namespace*)
../../gcc/fortran/resolve.c:10570
0x6eb272 resolve_codes
../../gcc/fortran/resolve.c:15667
0x6eb361 gfc_resolve(gfc_namespace*)
../../gcc/fortran/resolve.c:15701
0x6d668a resolve_all_program_units
../../gcc/fortran/parse.c:5853
0x6d668a gfc_parse_file()
../../gcc/fortran/parse.c:6105
0x718d12 gfc_be_parse_file
../../gcc/fortran/f95-lang.c:198
