From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-402949-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 24443 invoked by alias); 7 Oct 2012 21:40:12 -0000
Received: (qmail 24272 invoked by uid 48); 7 Oct 2012 21:39:57 -0000
From: "dominiq at lps dot ens.fr" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/54851] New: Compiling gfortran.dg/class_array_7.f03 with '-O1 -flto' gives an ICE
Date: Sun, 07 Oct 2012 21:40:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: fortran
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: dominiq at lps dot ens.fr
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Changed-Fields:
Message-ID: <bug-54851-4@http.gcc.gnu.org/bugzilla/>
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
Content-Type: text/plain; charset="UTF-8"
MIME-Version: 1.0
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
X-SW-Source: 2012-10/txt/msg00625.txt.bz2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54851

             Bug #: 54851
           Summary: Compiling gfortran.dg/class_array_7.f03 with '-O1
                    -flto' gives an ICE
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: dominiq@lps.ens.fr


Compiling gfortran.dg/class_array_7.f03 with '-O1 -flto' gives

In file included from :0:0:
/opt/gcc/_clean/gcc/testsuite/gfortran.dg/class_array_7.f03: In function
'main':
/opt/gcc/_clean/gcc/testsuite/gfortran.dg/class_array_7.f03:49:0: internal
compiler error: in fold_convert_loc, at fold-const.c:1979
   use realloc
 ^

Reduced test case

module realloc
  implicit none

  type :: base_type
     integer :: i
  end type base_type

contains

  character(20) function print_type (name, a)
    character(*), intent(in) :: name
    class(base_type), dimension(:), intent(in) :: a
    select type (a)
     type is (base_type);      print_type = NAME // " is base_type"
    end select
  end function

end module realloc

program main
  use realloc
  implicit none
  class(base_type), dimension(:), allocatable :: a

  allocate (base_type :: a(10))
  if (trim (print_type ("a", a)) .ne. "a is base_type") call abort
end program main