https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88047
Bug ID: 88047
Summary: [9 Regression] ICE in gfc_find_vtab, at
fortran/class.c:2843
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: ---
Changed between 20180909 and 20180916 :
$ cat z1.f90
program p
type t
end type
class(t) :: x(2)
class(t), parameter :: a(2) = t()
x = a
end
$ gfortran-9-20180909 -c z1.f90
z1.f90:5:30:
5 | class(t), parameter :: a(2) = t()
| 1
Error: CLASS variable 'a' at (1) cannot have the PARAMETER attribute
z1.f90:4:19:
4 | class(t) :: x(2)
| 1
Error: CLASS variable 'x' at (1) must be dummy, allocatable or pointer
z1.f90:6:3:
6 | x = a
| 1
Error: Nonallocatable variable must not be polymorphic in intrinsic assignment
at (1) - check that there is a matching specific subroutine for '=' operator
$ gfortran-9-20181111 -c z1.f90
f951: internal compiler error: Segmentation fault
0xb297bf crash_signal
../../gcc/toplev.c:325
0x5fdeb3 gfc_find_vtab(gfc_typespec*)
../../gcc/fortran/class.c:2843
0x64a482 gfc_match_assignment()
../../gcc/fortran/match.c:1378
0x66d020 match_word
../../gcc/fortran/parse.c:65
0x66d020 decode_statement
../../gcc/fortran/parse.c:361
0x66eb5a next_free
../../gcc/fortran/parse.c:1234
0x66eb5a next_statement
../../gcc/fortran/parse.c:1466
0x67016b parse_spec
../../gcc/fortran/parse.c:3858
0x672c37 parse_progunit
../../gcc/fortran/parse.c:5671
0x6742b9 gfc_parse_file()
../../gcc/fortran/parse.c:6211
0x6bc89f gfc_be_parse_file
../../gcc/fortran/f95-lang.c:204
