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TheRock/compiler/amd-llvm/flang/test/Lower/OpenMP/parallel-reduction-rename.f90
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

37 lines
1.4 KiB
Fortran

! RUN: bbc -emit-hlfir -fopenmp -o - %s | FileCheck %s
! RUN: %flang_fc1 -emit-hlfir -fopenmp -o - %s | FileCheck %s
module m1
intrinsic max
end module m1
program main
use m1, ren=>max
n=0
!$omp parallel reduction(ren:n)
print *, "par"
!$omp end parallel
end program main
! test that we understood that this should be a max reduction
! CHECK-LABEL: omp.declare_reduction @max_i32 : i32 init {
! CHECK: ^bb0(%[[VAL_0:.*]]: i32):
! CHECK: %[[VAL_1:.*]] = arith.constant -2147483648 : i32
! CHECK: omp.yield(%[[VAL_1]] : i32)
! CHECK-LABEL: } combiner {
! CHECK: ^bb0(%[[VAL_0:.*]]: i32, %[[VAL_1:.*]]: i32):
! CHECK: %[[VAL_2:.*]] = arith.maxsi %[[VAL_0]], %[[VAL_1]] : i32
! CHECK: omp.yield(%[[VAL_2]] : i32)
! CHECK: }
! CHECK-LABEL: func.func @_QQmain() attributes {fir.bindc_name = "MAIN"} {
! CHECK: %[[VAL_0:.*]] = fir.alloca i32 {bindc_name = "n", uniq_name = "_QFEn"}
! CHECK: %[[VAL_1:.*]]:2 = hlfir.declare %[[VAL_0]] {uniq_name = "_QFEn"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
! CHECK: %[[VAL_2:.*]] = arith.constant 0 : i32
! CHECK: hlfir.assign %[[VAL_2]] to %[[VAL_1]]#0 : i32, !fir.ref<i32>
! CHECK: omp.parallel reduction(@max_i32 %[[VAL_1]]#0 -> %[[VAL_3:.*]] : !fir.ref<i32>) {
! ...
! CHECK: omp.terminator