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[flang][OpenMP] Put taskgroup in a new scope #144122

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Merged
merged 2 commits into from
Jun 16, 2025
Merged

[flang][OpenMP] Put taskgroup in a new scope #144122

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0b8b37b
[flang][OpenMP] Put taskgroup in a new scope
luporl Jun 13, 2025
4622e76
Update tests
luporl Jun 13, 2025
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1 change: 0 additions & 1 deletion flang/lib/Semantics/resolve-names.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1729,7 +1729,6 @@ bool OmpVisitor::NeedsScope(const parser::OpenMPBlockConstruct &x) {
switch (beginDir.v) {
case llvm::omp::Directive::OMPD_master:
case llvm::omp::Directive::OMPD_ordered:
case llvm::omp::Directive::OMPD_taskgroup:
return false;
default:
return true;
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32 changes: 32 additions & 0 deletions flang/test/Lower/OpenMP/taskgroup02.f90
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@@ -0,0 +1,32 @@
! RUN: %flang_fc1 -emit-hlfir -fopenmp -o - %s 2>&1 | FileCheck %s

! Check that variables are not privatized twice when TASKGROUP is used.

!CHECK-LABEL: func.func @_QPsub() {
!CHECK: omp.parallel {
!CHECK: %[[PAR_I:.*]]:2 = hlfir.declare %{{.*}} {uniq_name = "_QFsubEi"}
!CHECK: omp.master {
!CHECK: omp.taskgroup {
!CHECK-NEXT: omp.task private(@_QFsubEi_firstprivate_i32 %[[PAR_I]]#0 -> %[[TASK_I:.*]] : !fir.ref<i32>) {
!CHECK: %[[TASK_I_DECL:.*]]:2 = hlfir.declare %[[TASK_I]] {uniq_name = "_QFsubEi"}
!CHECK: }
!CHECK: }
!CHECK: }
!CHECK: }

subroutine sub()
integer, dimension(10) :: a
integer :: i

!$omp parallel
!$omp master
do i=1,10
!$omp taskgroup
!$omp task shared(a)
a(i) = 1
!$omp end task
!$omp end taskgroup
end do
!$omp end master
!$omp end parallel
end subroutine
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