https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88116
--- Comment #1 from G. Steinmetz <gs...@t-online.de> ---
Some older issues :
$ cat z3.f90
program p
print *, [real :: 1, [integer :: (real(k), k=2,1), 2]]
end
$ cat z4.f90
program p
print *, [real :: [integer :: (dble(k), k=1,0), 2]]
end
$ gfortran-9-20181118 -c z3.f90
f951: internal compiler error: gfc_convert_constant(): Unexpected type
0x61a501 gfc_internal_error(char const*, ...)
../../gcc/fortran/error.c:1363
0x6a759c gfc_convert_constant(gfc_expr*, bt, int)
../../gcc/fortran/simplify.c:8363
0x6a761a gfc_convert_constant(gfc_expr*, bt, int)
../../gcc/fortran/simplify.c:8396
0x62d3cb do_simplify
../../gcc/fortran/intrinsic.c:4475
0x638452 gfc_convert_type_warn(gfc_expr*, gfc_typespec*, int, int)
../../gcc/fortran/intrinsic.c:5148
0x5ece92 gfc_match_array_constructor(gfc_expr**)
../../gcc/fortran/array.c:1249
0x650479 match_primary
../../gcc/fortran/matchexp.c:153
0x650479 match_level_1
../../gcc/fortran/matchexp.c:211
0x650479 match_mult_operand
../../gcc/fortran/matchexp.c:267
0x6506d8 match_add_operand
../../gcc/fortran/matchexp.c:356
0x65092c match_level_2
../../gcc/fortran/matchexp.c:480
0x650a82 match_level_3
../../gcc/fortran/matchexp.c:551
0x650b74 match_level_4
../../gcc/fortran/matchexp.c:599
0x650b74 match_and_operand
../../gcc/fortran/matchexp.c:693
0x650d62 match_or_operand
../../gcc/fortran/matchexp.c:722
0x650e32 match_equiv_operand
../../gcc/fortran/matchexp.c:765
0x650f04 match_level_5
../../gcc/fortran/matchexp.c:811
0x6502e1 gfc_match_expr(gfc_expr**)
../../gcc/fortran/matchexp.c:870
0x638e23 match_io_element
../../gcc/fortran/io.c:3587
0x63b795 match_io_list
../../gcc/fortran/io.c:3626
