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! PR rtl-optimization/46804
! { dg-do run }
! { dg-options "-O -fPIC -fexpensive-optimizations -fgcse -foptimize-register-move -fpeel-loops -fno-tree-loop-optimize" }

program main
  integer, parameter :: n1 = 2, n2 = 3, n3 = 4, slen = 3
  character (len = slen), dimension (n1, n2, n3) :: a
  integer (kind = 1), dimension (2, 4) :: shift1
  integer (kind = 2), dimension (2, 4) :: shift2
  integer (kind = 4), dimension (2, 4) :: shift3
  do i3 = 1, n3
    do i2 = 1, n2
      do i1 = 1, n1
        a (i1, i2, i3) = 'ab'(i1:i1) // 'cde'(i2:i2) // 'fghi'(i3:i3)
      end do
    end do
  end do
  shift1 (1, :) = (/ 4, 11, 19, 20 /)
  shift1 (2, :) = (/ 55, 5, 1, 2 /)
  shift2 = shift1
  shift3 = shift1
  call test (cshift (a, shift2, 2))
  call test (cshift (a, shift3, 2))
contains
  subroutine test (b)
    character (len = slen), dimension (n1, n2, n3) :: b
    do i3 = 1, n3
      do i2 = 1, n2
        do i1 = 1, n1
          i2p = mod (shift1 (i1, i3) + i2 - 1, n2) + 1
          if (b (i1, i2, i3) .ne. a (i1, i2p, i3)) call abort
        end do
      end do
    end do
  end subroutine test
end program main