1! RUN: bbc -emit-hlfir -fopenmp --force-byref-reduction -o - %s 2>&1 | FileCheck %s 2! RUN: %flang_fc1 -emit-hlfir -fopenmp -mmlir --force-byref-reduction -o - %s 2>&1 | FileCheck %s 3 4!CHECK: omp.declare_reduction @[[REDUCTION_DECLARE:[_a-z0-9]+]] : !fir.ref<i32> 5!CHECK-SAME: alloc { 6!CHECK: %[[REF:.*]] = fir.alloca i32 7!CHECK: omp.yield(%[[REF]] : !fir.ref<i32>) 8!CHECK-LABEL: } init { 9!CHECK: ^bb0(%{{.*}}: !fir.ref<i32>, %[[ALLOC:.*]]: !fir.ref<i32>): 10!CHECK: %[[I0:[_a-z0-9]+]] = arith.constant 0 : i32 11!CHECKL fir.store [[%I0]] to %[[ALLOC]] : !fir.ref<i32> 12!CHECK: omp.yield(%[[ALLOC]] : !fir.ref<i32>) 13!CHECK: } combiner { 14!CHECK: ^bb0(%[[C0:[_a-z0-9]+]]: !fir.ref<i32>, %[[C1:[_a-z0-9]+]]: !fir.ref<i32>): 15!CHECK: %[[LD0:.*]] = fir.load %[[C0]] : !fir.ref<i32> 16!CHECK: %[[LD1:.*]] = fir.load %[[C1]] : !fir.ref<i32> 17!CHECK: %[[CR:[_a-z0-9]+]] = arith.addi %[[LD0]], %[[LD1]] : i32 18!CHECK: fir.store %[[CR]] to %[[C0]] : !fir.ref<i32> 19!CHECK: omp.yield(%[[C0]] : !fir.ref<i32>) 20!CHECK: } 21!CHECK: func.func @_QQmain() attributes {fir.bindc_name = "mn"} { 22!CHECK: %[[RED_ACCUM_REF:[_a-z0-9]+]] = fir.alloca i32 {bindc_name = "i", uniq_name = "_QFEi"} 23!CHECK: %[[RED_ACCUM_DECL:[_a-z0-9]+]]:2 = hlfir.declare %[[RED_ACCUM_REF]] {uniq_name = "_QFEi"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>) 24!CHECK: %[[C0:[_a-z0-9]+]] = arith.constant 0 : i32 25!CHECK: hlfir.assign %[[C0]] to %[[RED_ACCUM_DECL]]#0 : i32, !fir.ref<i32> 26!CHECK: omp.parallel reduction(byref @[[REDUCTION_DECLARE]] %[[RED_ACCUM_DECL]]#0 -> %[[PRIVATE_RED:[a-z0-9]+]] : !fir.ref<i32>) { 27!CHECK: %[[PRIVATE_DECL:[_a-z0-9]+]]:2 = hlfir.declare %[[PRIVATE_RED]] {uniq_name = "_QFEi"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>) 28!CHECK: %[[C1:[_a-z0-9]+]] = arith.constant 1 : i32 29!CHECK: hlfir.assign %[[C1]] to %[[PRIVATE_DECL]]#0 : i32, !fir.ref<i32> 30!CHECK: omp.terminator 31!CHECK: } 32!CHECK: %[[RED_ACCUM_VAL:[_a-z0-9]+]] = fir.load %[[RED_ACCUM_DECL]]#0 : !fir.ref<i32> 33!CHECK: {{.*}} = fir.call @_FortranAioOutputInteger32(%{{.*}}, %[[RED_ACCUM_VAL]]) fastmath<contract> : (!fir.ref<i8>, i32) -> i1 34!CHECK: return 35!CHECK: } 36 37program mn 38 integer :: i 39 i = 0 40 41 !$omp parallel reduction(+:i) 42 i = 1 43 !$omp end parallel 44 45 print *, i 46end program 47