From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-434419-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 12595 invoked by alias); 13 Nov 2013 07:33:30 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
Received: (qmail 12574 invoked by uid 48); 13 Nov 2013 07:33:25 -0000
From: "burnus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/59104] New: Wrong result with SIZE specification expression
Date: Wed, 13 Nov 2013 07:33:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: fortran
X-Bugzilla-Version: 4.9.0
X-Bugzilla-Keywords: wrong-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: burnus at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags:
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status keywords bug_severity priority component assigned_to reporter
Message-ID: <bug-59104-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 7bit
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-SW-Source: 2013-11/txt/msg01196.txt.bz2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59104

            Bug ID: 59104
           Summary: Wrong result with SIZE specification expression
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: burnus at gcc dot gnu.org

James Van Buskirk found the following problem,
https://groups.google.com/forum/#!topic/comp.lang.fortran/2RleGXz6-ew

Result with GCC 4.8 + 4.9:
   size(f) =            1
   size(y) =   2143476561

Result with GCC 4.5, 4.6 and 4.7:
 size(f) =            1
 size(y) =            1

Expected result:
 size(f) =            1
 size(y) =            2


module m1
   implicit none
   integer, parameter :: dp = kind([double precision::])
   contains
      recursive function f(x)
         integer, intent(in) :: x
         real(dp) f(x/2)
         integer y(size(f)+1)

         write(*,*) 'size(f) = ',size(f)
         write(*,*) 'size(y) = ',size(y)
         f = 0
      end function f
end module m1

program bug3
   use m1
   implicit none
   real y

   y = sum(f(2))
end program bug3