gcc/testsuite/gfortran.dg/lrshift_1.f90

   1 ! { dg-do run }
   2 ! { dg-options "-std=gnu -w" }
   3 ! { dg-additional-sources lrshift_1.c }
   4 program test_rshift_lshift
   5   implicit none
   6   integer :: i(15), j, n
   7   integer, external :: c_lshift, c_rshift
   8
   9   i = (/ -huge(i), -huge(i)/2, -129, -128, -127, -2, -1, 0, &
  10          1, 2, 127, 128, 129, huge(i)/2, huge(i) /)
  11
  12   do n = 1, size(i)
  13     do j = -30, 30
  14       if (lshift(i(n),j) /= c_lshift(i(n),j)) STOP 1
  15       if (rshift(i(n),j) /= c_rshift(i(n),j)) STOP 2
  16     end do
  17   end do
  18 end program test_rshift_lshift