https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99124
Bug ID: 99124
Summary: [9/10/11 Regression] ICE in gfc_get_class_from_expr,
at fortran/trans-expr.c:541
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Changed between 20201213 and 20210110 :
(compiles with x=x+y and x=y+z, respectivly)
(but not sure if valid at all)
$ cat z1.f90
module m
type t
contains
procedure :: f
generic :: operator(+) => f
end type
contains
elemental function f(a, b) result(c)
class(t), intent(in) :: a, b
class(t), allocatable :: c
end
end
program p
use m
class(t), allocatable :: x(:), y(:)
x = x(2) + y
end
$ cat z2.f90
module m
type t
contains
procedure :: f
generic :: operator(+) => f
end type
contains
elemental function f(a, b) result(c)
class(t), intent(in) :: a, b
class(t), allocatable :: c
end
end
program p
use m
class(t), allocatable :: x(:), y(:), z
z = x(1)
x = z + y
end
$ gfortran-11-20201213 -c z1.f90
$
$ gfortran-11-20210214 -c z1.f90
z1.f90:16:15:
16 | x = x(2) + y
| 1
internal compiler error: Segmentation fault
0xc09bcf crash_signal
../../gcc/toplev.c:327
0x763649 gfc_get_class_from_expr(tree_node*)
../../gcc/fortran/trans-expr.c:541
0x73d6a4 get_class_info_from_ss
../../gcc/fortran/trans-array.c:1171
0x73d6a4 gfc_trans_create_temp_array(stmtblock_t*, stmtblock_t*, gfc_ss*,
tree_node*, tree_node*, bool, bool, bool, locus*)
../../gcc/fortran/trans-array.c:1313
0x7483d2 gfc_conv_loop_setup(gfc_loopinfo*, locus*)
../../gcc/fortran/trans-array.c:5339
0x77778d gfc_trans_assignment_1
../../gcc/fortran/trans-expr.c:11128
0x739de7 trans_code
../../gcc/fortran/trans.c:1922
0x760554 gfc_generate_function_code(gfc_namespace*)
../../gcc/fortran/trans-decl.c:6880
0x6e6e86 translate_all_program_units
../../gcc/fortran/parse.c:6351
0x6e6e86 gfc_parse_file()
../../gcc/fortran/parse.c:6620
0x7330ff gfc_be_parse_file
../../gcc/fortran/f95-lang.c:212
