36 lines
1.6 KiB
Fortran
36 lines
1.6 KiB
Fortran
! RUN: bbc -emit-hlfir -fopenmp -o - %s 2>&1 | FileCheck %s
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! RUN: %flang_fc1 -emit-hlfir -fopenmp -o - %s 2>&1 | FileCheck %s
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!CHECK: omp.reduction.declare @[[MAX_DECLARE_I:.*]] : i32 init {
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!CHECK: %[[MINIMUM_VAL_I:.*]] = arith.constant -2147483648 : i32
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!CHECK: omp.yield(%[[MINIMUM_VAL_I]] : i32)
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!CHECK: combiner
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!CHECK: ^bb0(%[[ARG0_I:.*]]: i32, %[[ARG1_I:.*]]: i32):
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!CHECK: %[[COMB_VAL_I:.*]] = arith.maxsi %[[ARG0_I]], %[[ARG1_I]] : i32
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!CHECK: omp.yield(%[[COMB_VAL_I]] : i32)
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!CHECK-LABEL: @_QPreduction_max_int
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!CHECK-SAME: %[[Y_BOX:.*]]: !fir.box<!fir.array<?xi32>>
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!CHECK: %[[X_REF:.*]] = fir.alloca i32 {bindc_name = "x", uniq_name = "_QFreduction_max_intEx"}
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!CHECK: %[[X_DECL:.*]]:2 = hlfir.declare %[[X_REF]] {uniq_name = "_QFreduction_max_intEx"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
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!CHECK: %[[Y_DECL:.*]]:2 = hlfir.declare %[[Y_BOX]] {uniq_name = "_QFreduction_max_intEy"} : (!fir.box<!fir.array<?xi32>>) -> (!fir.box<!fir.array<?xi32>>, !fir.box<!fir.array<?xi32>>)
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!CHECK: omp.parallel
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!CHECK: omp.wsloop reduction(@[[MAX_DECLARE_I]] -> %[[X_DECL]]#0 : !fir.ref<i32>) for
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!CHECK: %[[Y_I_REF:.*]] = hlfir.designate %[[Y_DECL]]#0 ({{.*}}) : (!fir.box<!fir.array<?xi32>>, i64) -> !fir.ref<i32>
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!CHECK: %[[Y_I:.*]] = fir.load %[[Y_I_REF]] : !fir.ref<i32>
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!CHECK: omp.reduction %[[Y_I]], %[[X_DECL]]#0 : i32, !fir.ref<i32>
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!CHECK: omp.yield
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!CHECK: omp.terminator
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subroutine reduction_max_int(y)
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integer :: x, y(:)
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x = 0
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!$omp parallel
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!$omp do reduction(max:x)
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do i=1, 100
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x = max(x, y(i))
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end do
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!$omp end do
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!$omp end parallel
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print *, x
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end subroutine
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