flang/test/Lower/pointer-runtime.f90

   1 ! RUN: bbc -emit-fir -use-alloc-runtime %s -o - | FileCheck %s
   2
   3 ! Test lowering of allocatables using runtime for allocate/deallocate statements.
   4 ! CHECK-LABEL: _QPpointer_runtime(
   5 subroutine 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{{.*}})
  50 end subroutine