[Bug fortran/51487] New: leak memory with eoshift(..,...,boundary)

["herve.manche at libertysurf dot fr" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51487

             Bug #: 51487
           Summary: leak memory with eoshift(..,...,boundary)
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: herve.manche@libertysurf.fr


! The following short program seems to induce a memory leak
!************************************************************************
program test_eoshift
  implicit none
  integer, dimension(:,:), allocatable :: matrix
  integer :: i

  allocate(matrix(1:3,1:5))

  matrix(:,:)=0
  do i=1,20000000 
    matrix=eoshift(matrix,-1,dim=2,boundary=(/ i, i+1, i+2/))
    end do

  deallocate(matrix)

  end program test_eoshift
!************************************************************************
! The problem remains with real arrays
! There is NO PROBLEM if matrix is not allocatable (integer, dimension(3,5) ::)
! There is NO PROBLEM if no boundary inside eoshift(..,..)
! There is NO PROBLEM with ifort
! The problem arises on following versions (gfortran -v)
Using built-in specs.
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 4.4.5-8'
--with-bugurl=file:///usr/share/doc/gcc-4.4/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.4 --enable-shared --enable-multiarch
--enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix
--with-gxx-include-dir=/usr/include/c++/4.4 --libdir=/usr/lib --enable-nls
--enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc
--with-arch-32=i586 --with-tune=generic --enable-checking=release
--build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.4.5 (Debian 4.4.5-8) 

Using built-in specs.
COLLECT_GCC=gfortran47
COLLECT_LTO_WRAPPER=/opt/gcc-4.7/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.7.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-4.7-source/gcc-4.7-20110910/configure
--enable-languages=c,c++,fortran --enable-checking=release --disable-bootstrap
--disable-libmudflap --enable-libgomp --enable-lto --enable-gold
--with-plugin-ld=/usr/bin/gold --prefix=/usr/local/gcc-4.7
Thread model: posix
gcc version 4.7.0 20110910 (experimental) (GCC)