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TheRock/compiler/amd-llvm/flang/test/Semantics/OpenMP/declare-reduction-use-assoc.f90
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28 lines
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Fortran

! RUN: %flang_fc1 -fopenmp -fopenmp-version=52 -fdebug-dump-symbols %s 2>&1 | FileCheck %s
! Test that USE-associated declare reduction does not produce false
! "Duplicate definition" errors when a new local declaration is made.
! Related: https://github.com/llvm/llvm-project/issues/192580
module m_use_reduction
type :: dt
integer :: val = 0
end type
!$omp declare reduction(+:dt:omp_out%val=omp_out%val+omp_in%val) &
!$omp initializer(omp_priv=dt(0))
end module
module m_local_reduction
use m_use_reduction, only: dt
type :: dt2
real :: x = 0.0
end type
! This should NOT produce "Duplicate definition" — the USE-associated
! reduction for dt is shadowed by this new local declaration for dt2.
!$omp declare reduction(+:dt2:omp_out%x=omp_out%x+omp_in%x) &
!$omp initializer(omp_priv=dt2(0.0))
end module
!CHECK: Module scope: m_local_reduction
!CHECK: op.+, PUBLIC: UserReductionDetails TYPE(dt2)