gcc/testsuite/gfortran.dg/cshift_nan_1.f90

   1 ! { dg-do run }
   2 ! Test cshift where the values are eight bytes,
   3 ! but are aligned on a four-byte boundary.  The
   4 ! integers correspond to NaN values.
   5 program main
   6   implicit none
   7   integer :: i
   8   type t
   9      sequence
  10      integer :: a,b
  11   end type t
  12   type(t), dimension(4) :: u,v
  13   common /foo/ u, i, v
  14
  15   u(1)%a = 2142240768
  16   u(2)%a = 2144337920
  17   u(3)%a = -5242880
  18   u(4)%a = -3145728
  19   u%b = (/(i,i=-1,-4,-1)/)
  20   v(1:3:2) = cshift(u(1:3:2),1)
  21   v(2:4:2) = cshift(u(2:4:2),-1)
  22   if (any(v%a /= (/-5242880, -3145728, 2142240768, 2144337920 /))) STOP 1
  23   if (any(v%b /= (/-3, -4, -1, -2/))) STOP 2
  24 end program main