https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102817
Bug ID: 102817
Summary: [12 Regression] ICE in gfc_clear_shape, at
fortran/expr.c:422
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Started between 20211003 and 20211010 :
$ cat z1.f90
program p
type t
integer :: a(1,2) = 3
end type
type(t), parameter :: x(1) = t(4)
integer :: y(1,2)
y = (x(1)%a)
print *, y
end
$ gfortran-12-20211003 -c z1.f90
$
$ gfortran-12-20211017 -c z1.f90
f951: internal compiler error: Segmentation fault
0xd47e4f crash_signal
../../gcc/toplev.c:322
0x798d1b gfc_clear_shape(__mpz_struct (*) [1], int)
../../gcc/fortran/expr.c:422
0x798d1b gfc_free_shape(__mpz_struct (**) [1], int)
../../gcc/fortran/expr.c:432
0x798e3d free_expr0
../../gcc/fortran/expr.c:513
0x798ff0 gfc_replace_expr(gfc_expr*, gfc_expr*)
../../gcc/fortran/expr.c:626
0x79c768 simplify_const_ref
../../gcc/fortran/expr.c:1999
0x79ce5e gfc_simplify_expr(gfc_expr*, int)
../../gcc/fortran/expr.c:2312
0x79d0ab simplify_parameter_variable
../../gcc/fortran/expr.c:2141
0x79ce2d gfc_simplify_expr(gfc_expr*, int)
../../gcc/fortran/expr.c:2279
0x79c9a6 simplify_intrinsic_op
../../gcc/fortran/expr.c:1188
0x79c9a6 gfc_simplify_expr(gfc_expr*, int)
../../gcc/fortran/expr.c:2268
0x80bb79 resolve_operator
../../gcc/fortran/resolve.c:4470
0x80807f gfc_resolve_expr(gfc_expr*)
../../gcc/fortran/resolve.c:7136
0x810aa4 gfc_resolve_expr(gfc_expr*)
../../gcc/fortran/resolve.c:11806
0x810aa4 gfc_resolve_code(gfc_code*, gfc_namespace*)
../../gcc/fortran/resolve.c:11908
0x812097 resolve_codes
../../gcc/fortran/resolve.c:17512
0x81215e gfc_resolve(gfc_namespace*)
../../gcc/fortran/resolve.c:17547
0x7fa494 resolve_all_program_units
../../gcc/fortran/parse.c:6519
0x7fa494 gfc_parse_file()
../../gcc/fortran/parse.c:6771
0x8476bf gfc_be_parse_file
../../gcc/fortran/f95-lang.c:216
