xref: /llvm-project/flang/test/Lower/pointer-runtime.f90 (revision f35f863a88f83332bef9605ef4cfe4f05c066efb)
1! RUN: bbc -emit-fir -hlfir=false -use-alloc-runtime %s -o - | FileCheck %s
2
3! Test lowering of allocatables using runtime for allocate/deallocate statements.
4! CHECK-LABEL: _QPpointer_runtime(
5subroutine pointer_runtime(n)
6  integer :: n
7  character(:), pointer :: scalar, array(:)
8  ! CHECK-DAG: %[[sBoxAddr:.*]] = fir.alloca !fir.box<!fir.ptr<!fir.char<1,?>>> {{{.*}}uniq_name = "_QFpointer_runtimeEscalar"}
9  ! CHECK-DAG: %[[sNullAddr:.*]] = fir.zero_bits !fir.ptr<!fir.char<1,?>>
10  ! CHECK-DAG: %[[sInitBox:.*]] = fir.embox %[[sNullAddr]] typeparams %c0{{.*}} : (!fir.ptr<!fir.char<1,?>>, index) -> !fir.box<!fir.ptr<!fir.char<1,?>>>
11  ! CHECK-DAG: fir.store %[[sInitBox]] to %[[sBoxAddr]] : !fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>
12
13  ! CHECK-DAG: %[[aBoxAddr:.*]] = fir.alloca !fir.box<!fir.ptr<!fir.array<?x!fir.char<1,?>>>> {{{.*}}uniq_name = "_QFpointer_runtimeEarray"}
14  ! CHECK-DAG: %[[aNullAddr:.*]] = fir.zero_bits !fir.ptr<!fir.array<?x!fir.char<1,?>>>
15  ! CHECK-DAG: %[[aNullShape:.*]] = fir.shape %c0{{.*}} : (index) -> !fir.shape<1>
16  ! CHECK-DAG: %[[aInitBox:.*]] = fir.embox %[[aNullAddr]](%[[aNullShape]]) typeparams %c0{{.*}} : (!fir.ptr<!fir.array<?x!fir.char<1,?>>>, !fir.shape<1>, index) -> !fir.box<!fir.ptr<!fir.array<?x!fir.char<1,?>>>>
17  ! CHECK-DAG: fir.store %[[aInitBox]] to %[[aBoxAddr]] : !fir.ref<!fir.box<!fir.ptr<!fir.array<?x!fir.char<1,?>>>>>
18
19  allocate(character(10):: scalar, array(30))
20  ! CHECK-DAG: %[[sBoxCast1:.*]] = fir.convert %[[sBoxAddr]] : (!fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>) -> !fir.ref<!fir.box<none>>
21  ! CHECK-DAG: %[[ten1:.*]] = fir.convert %c10{{.*}} : (i32) -> i64
22  ! CHECK: fir.call @{{.*}}PointerNullifyCharacter(%[[sBoxCast1]], %[[ten1]], %c1{{.*}}, %c0{{.*}}, %c0{{.*}})
23  ! CHECK-NOT: PointerSetBounds
24  ! CHECK: %[[sBoxCast2:.*]] = fir.convert %[[sBoxAddr]] : (!fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>) -> !fir.ref<!fir.box<none>>
25  ! CHECK: fir.call @{{.*}}PointerAllocate(%[[sBoxCast2]]
26
27  ! CHECK-DAG: %[[aBoxCast1:.*]] = fir.convert %[[aBoxAddr]] : (!fir.ref<!fir.box<!fir.ptr<!fir.array<?x!fir.char<1,?>>>>>) -> !fir.ref<!fir.box<none>>
28  ! CHECK-DAG: %[[ten2:.*]] = fir.convert %c10{{.*}} : (i32) -> i64
29  ! CHECK: fir.call @{{.*}}PointerNullifyCharacter(%[[aBoxCast1]], %[[ten2]], %c1{{.*}}, %c1{{.*}}, %c0{{.*}})
30  ! CHECK: %[[aBoxCast2:.*]] = fir.convert %[[aBoxAddr]] : (!fir.ref<!fir.box<!fir.ptr<!fir.array<?x!fir.char<1,?>>>>>) -> !fir.ref<!fir.box<none>>
31  ! CHECK: fir.call @{{.*}}PointerSetBounds(%[[aBoxCast2]]
32  ! CHECK: %[[aBoxCast3:.*]] = fir.convert %[[aBoxAddr]] : (!fir.ref<!fir.box<!fir.ptr<!fir.array<?x!fir.char<1,?>>>>>) -> !fir.ref<!fir.box<none>>
33  ! CHECK: fir.call @{{.*}}PointerAllocate(%[[aBoxCast3]]
34
35  deallocate(scalar, array)
36  ! CHECK: %[[sBoxCast3:.*]] = fir.convert %[[sBoxAddr]] : (!fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>) -> !fir.ref<!fir.box<none>>
37  ! CHECK: fir.call @{{.*}}PointerDeallocate(%[[sBoxCast3]]
38  ! CHECK: %[[aBoxCast4:.*]] = fir.convert %[[aBoxAddr]] : (!fir.ref<!fir.box<!fir.ptr<!fir.array<?x!fir.char<1,?>>>>>) -> !fir.ref<!fir.box<none>>
39  ! CHECK: fir.call @{{.*}}PointerDeallocate(%[[aBoxCast4]]
40
41  ! only testing that the correct length is set in the descriptor.
42  allocate(character(n):: scalar, array(40))
43  ! CHECK: %[[n:.*]] = fir.load %arg0 : !fir.ref<i32>
44  ! CHECK-DAG: %[[ncast1:.*]] = fir.convert %[[n]] : (i32) -> i64
45  ! CHECK-DAG: %[[sBoxCast4:.*]] = fir.convert %[[sBoxAddr]] : (!fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>) -> !fir.ref<!fir.box<none>>
46  ! CHECK: fir.call @{{.*}}PointerNullifyCharacter(%[[sBoxCast4]], %[[ncast1]], %c1{{.*}}, %c0{{.*}}, %c0{{.*}})
47  ! CHECK-DAG: %[[ncast2:.*]] = fir.convert %[[n]] : (i32) -> i64
48  ! CHECK-DAG: %[[aBoxCast5:.*]] = fir.convert %[[aBoxAddr]] : (!fir.ref<!fir.box<!fir.ptr<!fir.array<?x!fir.char<1,?>>>>>) -> !fir.ref<!fir.box<none>>
49  ! CHECK: fir.call @{{.*}}PointerNullifyCharacter(%[[aBoxCast5]], %[[ncast2]], %c1{{.*}}, %c1{{.*}}, %c0{{.*}})
50end subroutine
51