Kiran Chandramohan e2911aa2c2
[Flang][OpenMP] Fix crash when loop index var is pointer or allocatable (#129717)
Use hlfir dereferencing for pointers and allocatables and use hlfir
assign. Also, change the code updating IV in lastprivate.

Note: This is a small change. Modifications in existing tests are
changes from fir.store to hlfir.assign.

Fixes #121290
2025-03-06 12:19:34 +00:00

76 lines
3.4 KiB
Fortran

! This test checks lowering of OpenMP DO Directive (Worksharing).
! RUN: bbc -fopenmp -emit-hlfir %s -o - | FileCheck %s
!CHECK-LABEL: func @_QPsimple_loop()
subroutine simple_loop
integer :: i
! CHECK: omp.parallel
!$OMP PARALLEL
! CHECK: %[[WS_LB:.*]] = arith.constant 1 : i32
! CHECK: %[[WS_UB:.*]] = arith.constant 9 : i32
! CHECK: %[[WS_STEP:.*]] = arith.constant 1 : i32
! CHECK: omp.wsloop private(@{{.*}} %{{.*}}#0 -> %[[ALLOCA_IV:.*]] : !fir.ref<i32>) {
! CHECK-NEXT: omp.loop_nest (%[[I:.*]]) : i32 = (%[[WS_LB]]) to (%[[WS_UB]]) inclusive step (%[[WS_STEP]]) {
!$OMP DO
do i=1, 9
! CHECK: %[[IV_DECL:.*]]:2 = hlfir.declare %[[ALLOCA_IV]] {uniq_name = "_QFsimple_loopEi"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
! CHECK: hlfir.assign %[[I]] to %[[IV_DECL:.*]]#1 : i32, !fir.ref<i32>
! CHECK: %[[LOAD_IV:.*]] = fir.load %[[IV_DECL]]#0 : !fir.ref<i32>
! CHECK: fir.call @_FortranAioOutputInteger32({{.*}}, %[[LOAD_IV]]) {{.*}}: (!fir.ref<i8>, i32) -> i1
print*, i
end do
! CHECK: omp.yield
!$OMP END DO
! CHECK: omp.terminator
!$OMP END PARALLEL
end subroutine
!CHECK-LABEL: func @_QPsimple_loop_with_step()
subroutine simple_loop_with_step
integer :: i
! CHECK: omp.parallel
!$OMP PARALLEL
! CHECK: %[[WS_LB:.*]] = arith.constant 1 : i32
! CHECK: %[[WS_UB:.*]] = arith.constant 9 : i32
! CHECK: %[[WS_STEP:.*]] = arith.constant 2 : i32
! CHECK: omp.wsloop private(@{{.*}} %{{.*}}#0 -> %[[ALLOCA_IV:.*]] : !fir.ref<i32>) {
! CHECK-NEXT: omp.loop_nest (%[[I:.*]]) : i32 = (%[[WS_LB]]) to (%[[WS_UB]]) inclusive step (%[[WS_STEP]]) {
! CHECK: %[[IV_DECL:.*]]:2 = hlfir.declare %[[ALLOCA_IV]] {uniq_name = "_QFsimple_loop_with_stepEi"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
! CHECK: hlfir.assign %[[I]] to %[[IV_DECL]]#1 : i32, !fir.ref<i32>
! CHECK: %[[LOAD_IV:.*]] = fir.load %[[IV_DECL]]#0 : !fir.ref<i32>
!$OMP DO
do i=1, 9, 2
! CHECK: fir.call @_FortranAioOutputInteger32({{.*}}, %[[LOAD_IV]]) {{.*}}: (!fir.ref<i8>, i32) -> i1
print*, i
end do
! CHECK: omp.yield
!$OMP END DO
! CHECK: omp.terminator
!$OMP END PARALLEL
end subroutine
!CHECK-LABEL: func @_QPloop_with_schedule_nowait()
subroutine loop_with_schedule_nowait
integer :: i
! CHECK: omp.parallel
!$OMP PARALLEL
! CHECK: %[[WS_LB:.*]] = arith.constant 1 : i32
! CHECK: %[[WS_UB:.*]] = arith.constant 9 : i32
! CHECK: %[[WS_STEP:.*]] = arith.constant 1 : i32
! CHECK: omp.wsloop nowait schedule(runtime) private(@{{.*}} %{{.*}}#0 -> %[[ALLOCA_IV:.*]] : !fir.ref<i32>) {
! CHECK-NEXT: omp.loop_nest (%[[I:.*]]) : i32 = (%[[WS_LB]]) to (%[[WS_UB]]) inclusive step (%[[WS_STEP]]) {
!$OMP DO SCHEDULE(runtime)
do i=1, 9
! CHECK: %[[IV_DECL:.*]]:2 = hlfir.declare %[[ALLOCA_IV]] {uniq_name = "_QFloop_with_schedule_nowaitEi"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
! CHECK: hlfir.assign %[[I]] to %[[IV_DECL]]#1 : i32, !fir.ref<i32>
! CHECK: %[[LOAD_IV:.*]] = fir.load %[[IV_DECL]]#0 : !fir.ref<i32>
! CHECK: fir.call @_FortranAioOutputInteger32({{.*}}, %[[LOAD_IV]]) {{.*}}: (!fir.ref<i8>, i32) -> i1
print*, i
end do
! CHECK: omp.yield
!$OMP END DO NOWAIT
! CHECK: omp.terminator
!$OMP END PARALLEL
end subroutine