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! { dg-do run }

! PR 16946

! Not all allowed combinations of arguments for MAXVAL, MINVAL,

! PRODUCT and SUM were supported.

program reduction_mask

  implicit none

  logical :: equal(3)

  integer, parameter :: res(4*9) = (/ 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, &

       1, 1, 1, 1, 1, 6, 6, 6, 2, 2, 2, 2, 2, 2, 6, 6, 6, 3, 3, 3, 3, 3, 3 /)

  integer :: val(4*9)

  complex :: cval(2*9), cin(3)

  equal = (/ .true., .true., .false. /)

  ! use all combinations of the dim and mask arguments for the

  ! reduction intrinsics

  val( 1) = maxval((/ 1, 2, 3 /))

  val( 2) = maxval((/ 1, 2, 3 /), 1)

  val( 3) = maxval((/ 1, 2, 3 /), dim=1)

  val( 4) = maxval((/ 1, 2, 3 /), equal)

  val( 5) = maxval((/ 1, 2, 3 /), mask=equal)

  val( 6) = maxval((/ 1, 2, 3 /), 1, equal)

  val( 7) = maxval((/ 1, 2, 3 /), 1, mask=equal)

  val( 8) = maxval((/ 1, 2, 3 /), dim=1, mask=equal)

  val( 9) = maxval((/ 1, 2, 3 /), mask=equal, dim=1)

  val(10) = minval((/ 1, 2, 3 /))

  val(11) = minval((/ 1, 2, 3 /), 1)

  val(12) = minval((/ 1, 2, 3 /), dim=1)

  val(13) = minval((/ 1, 2, 3 /), equal)

  val(14) = minval((/ 1, 2, 3 /), mask=equal)

  val(15) = minval((/ 1, 2, 3 /), 1, equal)

  val(16) = minval((/ 1, 2, 3 /), 1, mask=equal)

  val(17) = minval((/ 1, 2, 3 /), dim=1, mask=equal)

  val(18) = minval((/ 1, 2, 3 /), mask=equal, dim=1)

  val(19) = product((/ 1, 2, 3 /))

  val(20) = product((/ 1, 2, 3 /), 1)

  val(21) = product((/ 1, 2, 3 /), dim=1)

  val(22) = product((/ 1, 2, 3 /), equal)

  val(23) = product((/ 1, 2, 3 /), mask=equal)

  val(24) = product((/ 1, 2, 3 /), 1, equal)

  val(25) = product((/ 1, 2, 3 /), 1, mask=equal)

  val(26) = product((/ 1, 2, 3 /), dim=1, mask=equal)

  val(27) = product((/ 1, 2, 3 /), mask=equal, dim=1)

  val(28) = sum((/ 1, 2, 3 /))

  val(29) = sum((/ 1, 2, 3 /), 1)

  val(30) = sum((/ 1, 2, 3 /), dim=1)

  val(31) = sum((/ 1, 2, 3 /), equal)

  val(32) = sum((/ 1, 2, 3 /), mask=equal)

  val(33) = sum((/ 1, 2, 3 /), 1, equal)

  val(34) = sum((/ 1, 2, 3 /), 1, mask=equal)

  val(35) = sum((/ 1, 2, 3 /), dim=1, mask=equal)

  val(36) = sum((/ 1, 2, 3 /), mask=equal, dim=1)

  if (any (val /= res)) call abort

  ! Tests for complex arguments. These were broken by the original fix.

  cin = cmplx((/1,2,3/))

  cval(1) = product(cin)

  cval(2) = product(cin, 1)

  cval(3) = product(cin, dim=1)

  cval(4) = product(cin, equal)

  cval(5) = product(cin, mask=equal)

  cval(6) = product(cin, 1, equal)

  cval(7) = product(cin, 1, mask=equal)

  cval(8) = product(cin, dim=1, mask=equal)

  cval(9) = product(cin, mask=equal, dim=1)

  cval(10) = sum(cin)

  cval(11) = sum(cin, 1)

  cval(12) = sum(cin, dim=1)

  cval(13) = sum(cin, equal)

  cval(14) = sum(cin, mask=equal)

  cval(15) = sum(cin, 1, equal)

  cval(16) = sum(cin, 1, mask=equal)

  cval(17) = sum(cin, dim=1, mask=equal)

  cval(18) = sum(cin, mask=equal, dim=1)

  if (any (cval /= cmplx(res(19:36)))) call abort

end program reduction_mask