[Bug fortran/29755] New: ICE on same name in subroutine and program

[Bug fortran/29755] New: ICE on same name in subroutine and program

[burnus at gcc dot gnu dot org]

import.f90:9:

    subroutine foo(x)
                 1
Error: PROGRAM attribute conflicts with PROCEDURE attribute at (1)
import.f90:0: internal compiler error: Segmentation fault

---------
program foo
  type myType
    integer :: i
  end type myType
  interface
    subroutine foo(x)
      type(myType) :: i
    end subroutine foo
  end interface
  call foo()
end program foo
---------

The crash occurs in decl.c in the line:
if (current_ts.type == BT_DERIVED
    && gfc_current_ns->proc_name->attr.if_source == IFSRC_IFBODY
since gfc_current_ns->proc_name == NULL

I have a patch for this.


-- 
           Summary: ICE on same name in subroutine and program
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: burnus at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29755

[Bug fortran/29755] ICE on same name in subroutine and program

[burnus at gcc dot gnu dot org]

-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |burnus at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2006-11-07 22:14:15
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29755

[Bug fortran/29755] ICE on same name in subroutine and program

[patchapp at dberlin dot org]

------- Comment #1 from patchapp at dberlin dot org  2006-11-08 10:01 -------
Subject: Bug number PR29755

A patch for this bug has been added to the patch tracker.
The mailing list url for the patch is
http://gcc.gnu.org/ml/gcc-patches/2006-11/msg00465.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29755

[Bug fortran/29755] [4.2 only] ICE on same name in subroutine and program

[burnus at gcc dot gnu dot org]

------- Comment #2 from burnus at gcc dot gnu dot org  2006-11-08 22:23 -------
On the trunk, the ICE is fixed by some other check in.
It still occurs on the 4.2 branch (r118599, current version)

Using my patch on the current trunk (118597) causes lots of regression, i.e.
either the trunk has changed or my patch is nonsense or both.


-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2006-11-07 22:14:15         |2006-11-08 22:23:12
               date|                            |
            Summary|ICE on same name in         |[4.2 only] ICE on same name
                   |subroutine and program      |in subroutine and program


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29755

[Bug fortran/29755] [4.2 only] ICE on same name in subroutine and program

[burnus at gcc dot gnu dot org]

-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |SUSPENDED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29755

[Bug fortran/29755] [4.2 only] ICE on same name in subroutine and program

[burnus at gcc dot gnu dot org]

-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|SUSPENDED                   |NEW
   Last reconfirmed|2006-11-08 22:23:12         |2006-11-08 22:24:16
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29755

[Bug fortran/29755] [4.2 only] ICE on same name in subroutine and program

[burnus at gcc dot gnu dot org]

------- Comment #3 from burnus at gcc dot gnu dot org  2006-11-08 22:35 -------
Just for completeness, the ICE also occurs with 4.1

! { dg-do compile }
! { dg-shouldfail "same name of program and subroutine" }
! Tests whether ICE occurs when using the same name
! for a subroutine as for the program
! PR fortran/29755
program foo
  type myType
    integer :: i
  end type myType
  interface
    subroutine foo(x)! { dg-error "PROGRAM attribute conflicts with PROCEDURE"
}
      type(myType) :: i! { dg-error "Unexpected data declaration statement" }
    end subroutine foo ! { dg-error "Expecting END INTERFACE statement" }
  end interface
  call foo() ! { dg-error "PROGRAM attribute conflicts with PROCEDURE" }
end program foo


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29755

[Bug fortran/29755] [4.2 only] ICE on same name in subroutine and program

[pault at gcc dot gnu dot org]

------- Comment #4 from pault at gcc dot gnu dot org  2006-11-10 07:43 -------
Tobias,

This is fixed by the patch for PR fortran/29539 and PR fortran/29634.  It will
be committed to 4.2 this weekend and to 4.1 as soon as I can.

I will close this PR when I do 4.2; I do not think that it necessary or useful
to add a test to the testsuite, since the error is detected correctly and is
tested elsewhere.

With 4.1, I am running ~10 bug fixes behind.  About 50% of the backports are
not applying cleanly, which is slowing me up some.

Paul



-- 

pault at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |pault at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2006-11-08 22:24:16         |2006-11-10 07:43:18
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29755

[Bug fortran/29755] [4.2 only] ICE on same name in subroutine and program

[pault at gcc dot gnu dot org]

------- Comment #5 from pault at gcc dot gnu dot org  2006-11-10 17:13 -------
Fixed on trunk and 4.2.

It will be fixed on 4.1 just as soon as I catch up with myself.

Paul


-- 

pault at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29755