derek.holloway
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42 lines
1.9 KiB
Fortran
42 lines
1.9 KiB
Fortran
! Test component-level initializer in declare reduction for derived types.
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! Verifies that `initializer(omp_priv%member = 0)` correctly lowers to
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! a component designate + assign (hlfir.designate + hlfir.assign), rather
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! than storing the scalar directly to the whole derived-type reference.
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!
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! This is a regression test for https://github.com/llvm/llvm-project/issues/184927
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!RUN: %flang_fc1 -emit-hlfir -fopenmp %s -o - | FileCheck %s
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subroutine test_component_init()
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implicit none
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type :: t
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integer :: member
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end type t
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integer :: i
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!$omp declare reduction(add_member : t : &
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!$omp& omp_out%member = omp_out%member + omp_in%member) &
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!$omp& initializer(omp_priv%member = 0)
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type(t) :: x
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x%member = 0
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!$omp parallel do reduction(add_member : x) num_threads(2)
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do i = 1, 10
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x%member = x%member + 1
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end do
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!$omp end parallel do
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end subroutine
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!CHECK: omp.declare_reduction @add_member : !fir.ref<!fir.type<_QFtest_component_initTt{member:i32}>>
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!CHECK-SAME: alloc {
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!CHECK: %[[ALLOCA:.*]] = fir.alloca !fir.type<_QFtest_component_initTt{member:i32}>
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!CHECK: omp.yield(%[[ALLOCA]] : !fir.ref<!fir.type<_QFtest_component_initTt{member:i32}>>)
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!CHECK: } init {
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!CHECK: ^bb0(%[[INIT_ARG0:.*]]: !fir.ref<!fir.type<_QFtest_component_initTt{member:i32}>>,
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!CHECK-SAME: %[[INIT_ARG1:.*]]: !fir.ref<!fir.type<_QFtest_component_initTt{member:i32}>>):
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!CHECK: %[[OMP_ORIG:.*]]:2 = hlfir.declare %[[INIT_ARG0]] {uniq_name = "omp_orig"}
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!CHECK: %[[OMP_PRIV:.*]]:2 = hlfir.declare %[[INIT_ARG1]] {uniq_name = "omp_priv"}
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!CHECK: %[[ZERO:.*]] = arith.constant 0 : i32
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!CHECK: %[[MEMBER:.*]] = hlfir.designate %[[OMP_PRIV]]#0{"member"} : (!fir.ref<!fir.type<_QFtest_component_initTt{member:i32}>>) -> !fir.ref<i32>
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!CHECK: hlfir.assign %[[ZERO]] to %[[MEMBER]] : i32, !fir.ref<i32>
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!CHECK: omp.yield(%[[INIT_ARG1]] : !fir.ref<!fir.type<_QFtest_component_initTt{member:i32}>>)
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!CHECK: } combiner {
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