flang/test/Lower/OpenMP/wsloop-reduction-array-lb.f90

! RUN: bbc -emit-hlfir -fopenmp -o - %s 2>&1 | FileCheck %s
! RUN: %flang_fc1 -emit-hlfir -fopenmp -o - %s 2>&1 | FileCheck %s

program reduce
  integer a(0:1)

  !$omp parallel do reduction(+:a)
    do i = 1, 10
      a(0) = a(0) + 1
    end do
  !$omp end parallel do
end program

! CHECK-LABEL:   omp.declare_reduction @add_reduction_byref_box_2xi32 : !fir.ref<!fir.box<!fir.array<2xi32>>> alloc {
! CHECK:         } combiner {
! CHECK:         ^bb0(%[[ARG0:.*]]: !fir.ref<!fir.box<!fir.array<2xi32>>>, %[[ARG1:.*]]: !fir.ref<!fir.box<!fir.array<2xi32>>>):
! CHECK:           %[[ARR0:.*]] = fir.load %[[ARG0]] : !fir.ref<!fir.box<!fir.array<2xi32>>>
! CHECK:           %[[ARR1:.*]] = fir.load %[[ARG1]] : !fir.ref<!fir.box<!fir.array<2xi32>>>
! CHECK:           %[[C1:.*]] = arith.constant 1 : index
! CHECK:           %[[C2:.*]] = arith.constant 2 : index
! CHECK:           %[[SHAPE_SHIFT:.*]] = fir.shape_shift %[[C1]], %[[C2]] : (index, index) -> !fir.shapeshift<1>
! CHECK:           %[[C1_0:.*]] = arith.constant 1 : index
! CHECK:           fir.do_loop %[[ARG2:.*]] = %[[C1_0]] to %[[C2]] step %[[C1_0]] unordered {
! CHECK:             %[[COOR0:.*]] = fir.array_coor %[[ARR0]](%[[SHAPE_SHIFT]]) %[[ARG2]] : (!fir.box<!fir.array<2xi32>>, !fir.shapeshift<1>, index) -> !fir.ref<i32>
! CHECK:             %[[COOR1:.*]] = fir.array_coor %[[ARR1]](%[[SHAPE_SHIFT]]) %[[ARG2]] : (!fir.box<!fir.array<2xi32>>, !fir.shapeshift<1>, index) -> !fir.ref<i32>
! CHECK:             %[[ELEM0:.*]] = fir.load %[[COOR0]] : !fir.ref<i32>
! CHECK:             %[[ELEM1:.*]] = fir.load %[[COOR1]] : !fir.ref<i32>
! CHECK:             %[[SUM:.*]] = arith.addi %[[ELEM0]], %[[ELEM1]] : i32
! CHECK:             fir.store %[[SUM]] to %[[COOR0]] : !fir.ref<i32>
! CHECK:           }
! CHECK:           omp.yield(%[[ARG0]] : !fir.ref<!fir.box<!fir.array<2xi32>>>)
! CHECK:         }

! CHECK-LABEL:   func.func @_QQmain() attributes {fir.bindc_name = "REDUCE"} {
! CHECK:           omp.wsloop {{.*}} reduction(byref @add_reduction_byref_box_2xi32 %{{.*}} -> %{{.*}} : !fir.ref<!fir.box<!fir.array<2xi32>>>)