[Bug fortran/68151] New: ICE on using select case with function of wrong type

[Bug fortran/68151] New: ICE on using select case with function of wrong type

[gerhard.steinmetz.fortran@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68151

            Bug ID: 68151
           Summary: ICE on using select case with function of wrong type
           Product: gcc
           Version: 5.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gerhard.steinmetz.fortran@t-online.de
  Target Milestone: ---

A select case with a function value of wrong type :

$ cat z1.f90
program p
   integer :: k = 1
   select case (k)
   case (:huge(1._8))
   end select
end

$ gfortran -g -O0 -Wall -fcheck=all z1.f90
f951: internal compiler error: gfc_trans_select(): Bad type for case expr.

---

Whereas, detected with real(4) result :

$ cat z2.f90
program p
   integer :: k = 1
   select case (k)
   case (:huge(1._4))
   end select
end

$ gfortran z2.f90
z2.f90:4:10:

    case (:huge(1._4))
          1
Error: Expression in CASE statement at (1) must be of type INTEGER

[Bug fortran/68151] ICE on using select case with function of wrong type

[gerhard.steinmetz.fortran@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68151

--- Comment #1 from Gerhard Steinmetz <gerhard.steinmetz.fortran@t-online.de> ---
Or depending on used compiler options :

$ cat z3.f90
program p
   real :: z
   integer :: k = 1
   select case (k)
   case (:huge(z))
   end select
end

$ gfortran -fdefault-real-8 z3.f90
f951: internal compiler error: gfc_trans_select(): Bad type for case expr.

---

Analogous with complex :

$ cat z4.f90
program p
   integer :: k = 1
   select case (k)
   case (cmplx(1):)
   end select
end

$ gfortran -fdefault-real-8 z4.f90
f951: internal compiler error: gfc_trans_select(): Bad type for case expr.