gcc/testsuite/gfortran.dg/dependency_39.f90

   1 ! { dg-do run }
   2 ! PR 45777 - component ref aliases when both are pointers
   3 module m1
   4   type t1
   5      integer, dimension(:), allocatable :: data
   6   end type t1
   7 contains
   8   subroutine s1(t,d)
   9     integer, dimension(:), pointer :: d
  10     type(t1), pointer :: t
  11     d(1:5)=t%data(3:7)
  12   end subroutine s1
  13   subroutine s2(d,t)
  14     integer, dimension(:), pointer :: d
  15     type(t1), pointer :: t
  16     t%data(3:7) = d(1:5)
  17   end subroutine s2
  18 end module m1
  19
  20 program main
  21   use m1
  22   type(t1), pointer :: t
  23   integer, dimension(:), pointer :: d
  24   allocate(t)
  25   allocate(t%data(10))
  26   t%data=(/(i,i=1,10)/)
  27   d=>t%data(5:9)
  28   call s1(t,d)
  29   if (any(d.ne.(/3,4,5,6,7/))) STOP 1
  30   t%data=(/(i,i=1,10)/)
  31   d=>t%data(1:5)
  32   call s2(d,t)
  33   if (any(t%data.ne.(/1,2,1,2,3,4,5,8,9,10/))) STOP 1
  34   deallocate(t%data)
  35   deallocate(t)
  36 end program main