xref: /llvm-project/flang/test/Lower/loops3.f90 (revision 85f4593e856e5034c5de1e6bbea13fb59e1995f5)
1! Test do concurrent reduction
2! RUN: bbc -emit-fir -hlfir=false -o - %s | FileCheck %s
3
4! CHECK-LABEL: loop_test
5subroutine loop_test
6  integer(4) :: i, j, k, tmp, sum = 0
7  real :: m
8
9  i = 100
10  j = 200
11  k = 300
12
13  ! CHECK: %[[VAL_0:.*]] = fir.alloca f32 {bindc_name = "m", uniq_name = "_QFloop_testEm"}
14  ! CHECK: %[[VAL_1:.*]] = fir.address_of(@_QFloop_testEsum) : !fir.ref<i32>
15  ! CHECK: fir.do_loop %{{.*}} = %{{.*}} to %{{.*}} step %{{.*}} unordered reduce(#fir.reduce_attr<add> -> %[[VAL_1:.*]] : !fir.ref<i32>, #fir.reduce_attr<max> -> %[[VAL_0:.*]] : !fir.ref<f32>) {
16  ! CHECK: fir.do_loop %{{.*}} = %{{.*}} to %{{.*}} step %{{.*}} unordered reduce(#fir.reduce_attr<add> -> %[[VAL_1:.*]] : !fir.ref<i32>, #fir.reduce_attr<max> -> %[[VAL_0:.*]] : !fir.ref<f32>) {
17  ! CHECK: fir.do_loop %{{.*}} = %{{.*}} to %{{.*}} step %{{.*}} unordered reduce(#fir.reduce_attr<add> -> %[[VAL_1:.*]] : !fir.ref<i32>, #fir.reduce_attr<max> -> %[[VAL_0:.*]] : !fir.ref<f32>) {
18  do concurrent (i=1:5, j=1:5, k=1:5) local(tmp) reduce(+:sum) reduce(max:m)
19    tmp = i + j + k
20    sum = tmp + sum
21    m = max(m, sum)
22  enddo
23end subroutine loop_test
24