xref: /llvm-project/flang/test/Lower/forall/forall-2.f90 (revision f35f863a88f83332bef9605ef4cfe4f05c066efb)
1! RUN: bbc -emit-fir -hlfir=false %s -o - | FileCheck %s
2! RUN: bbc -hlfir=false %s -o - | FileCheck --check-prefix=POSTOPT %s
3
4! CHECK-LABEL: func @_QPimplied_iters_allocatable(
5! CHECK-SAME: %[[VAL_0:.*]]: !fir.box<!fir.array<?x!fir.type<_QFimplied_iters_allocatableTt{oui:!fir.logical<4>,arr:!fir.box<!fir.heap<!fir.array<?xf32>>>}>>>{{.*}}, %[[VAL_1:.*]]: !fir.box<!fir.array<?xf32>>{{.*}}) {
6! CHECK: return
7! CHECK: }
8
9subroutine implied_iters_allocatable(thing, a1)
10  ! No dependence between lhs and rhs.
11  ! Lhs may need to be reallocated to conform.
12  real :: a1(:)
13  type t
14     logical :: oui
15     real, allocatable :: arr(:)
16  end type t
17  type(t) :: thing(:)
18  integer :: i
19
20  forall (i=5:13)
21  ! commenting out this test for the moment (hits assert)
22  !  thing(i)%arr = a1
23  end forall
24end subroutine implied_iters_allocatable
25
26subroutine conflicting_allocatable(thing, lo, hi)
27  ! Introduce a crossing dependence to produce copy-in/copy-out code.
28  integer :: lo,hi
29  type t
30     logical :: oui
31     real, allocatable :: arr(:)
32  end type t
33  type(t) :: thing(:)
34  integer :: i
35
36  forall (i = lo:hi)
37  ! commenting out this test for the moment (hits assert)
38  !  thing(i)%arr = thing(hi-i)%arr
39  end forall
40end subroutine conflicting_allocatable
41
42! CHECK-LABEL: func @_QPforall_pointer_assign(
43! CHECK-SAME:    %[[VAL_0:.*]]: !fir.box<!fir.array<?x!fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>>> {fir.bindc_name = "ap"}, %[[VAL_1:.*]]: !fir.ref<f32> {fir.bindc_name = "at"}, %[[VAL_2:.*]]: !fir.ref<i32> {fir.bindc_name = "ii"}, %[[VAL_3:.*]]: !fir.ref<i32> {fir.bindc_name = "ij"}) {
44! CHECK:         %[[VAL_4:.*]] = fir.alloca i32 {adapt.valuebyref, bindc_name = "i"}
45! CHECK:         %[[VAL_5:.*]] = fir.load %[[VAL_2]] : !fir.ref<i32>
46! CHECK:         %[[VAL_6:.*]] = fir.convert %[[VAL_5]] : (i32) -> index
47! CHECK:         %[[VAL_7:.*]] = fir.load %[[VAL_3]] : !fir.ref<i32>
48! CHECK:         %[[VAL_8:.*]] = fir.convert %[[VAL_7]] : (i32) -> index
49! CHECK:         %[[VAL_9:.*]] = arith.constant 8 : i32
50! CHECK:         %[[VAL_10:.*]] = fir.convert %[[VAL_9]] : (i32) -> index
51! CHECK:         %[[VAL_11:.*]] = fir.array_load %[[VAL_0]] : (!fir.box<!fir.array<?x!fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>>>) -> !fir.array<?x!fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>>
52! CHECK:         %[[VAL_12:.*]] = fir.array_load %[[VAL_0]] : (!fir.box<!fir.array<?x!fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>>>) -> !fir.array<?x!fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>>
53! CHECK:         %[[VAL_13:.*]] = fir.do_loop %[[VAL_14:.*]] = %[[VAL_6]] to %[[VAL_8]] step %[[VAL_10]] unordered iter_args(%[[VAL_15:.*]] = %[[VAL_11]]) -> (!fir.array<?x!fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>>) {
54! CHECK:           %[[VAL_16:.*]] = fir.convert %[[VAL_14]] : (index) -> i32
55! CHECK:           fir.store %[[VAL_16]] to %[[VAL_4]] : !fir.ref<i32>
56! CHECK-DAG:       %[[VAL_17:.*]] = arith.constant 1 : index
57! CHECK-DAG:       %[[VAL_18:.*]] = arith.constant 1 : i32
58! CHECK-DAG:       %[[VAL_19:.*]] = fir.load %[[VAL_4]] : !fir.ref<i32>
59! CHECK:           %[[VAL_20:.*]] = arith.subi %[[VAL_19]], %[[VAL_18]] : i32
60! CHECK:           %[[VAL_21:.*]] = fir.convert %[[VAL_20]] : (i32) -> i64
61! CHECK:           %[[VAL_22:.*]] = fir.convert %[[VAL_21]] : (i64) -> index
62! CHECK:           %[[VAL_23:.*]] = arith.subi %[[VAL_22]], %[[VAL_17]] : index
63! CHECK:           %[[VAL_24:.*]] = fir.field_index ptr, !fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>
64! CHECK:           %[[VAL_25:.*]] = fir.array_fetch %[[VAL_12]], %[[VAL_23]], %[[VAL_24]] : (!fir.array<?x!fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>>, index, !fir.field) -> !fir.box<!fir.ptr<!fir.array<?xf32>>>
65! CHECK:           %[[VAL_26:.*]] = arith.constant 1 : index
66! CHECK:           %[[VAL_27:.*]] = fir.load %[[VAL_4]] : !fir.ref<i32>
67! CHECK:           %[[VAL_28:.*]] = fir.convert %[[VAL_27]] : (i32) -> i64
68! CHECK:           %[[VAL_29:.*]] = fir.convert %[[VAL_28]] : (i64) -> index
69! CHECK:           %[[VAL_30:.*]] = arith.subi %[[VAL_29]], %[[VAL_26]] : index
70! CHECK:           %[[VAL_31:.*]] = fir.field_index ptr, !fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>
71! CHECK:           %[[VAL_32:.*]] = fir.array_update %[[VAL_15]], %[[VAL_25]], %[[VAL_30]], %[[VAL_31]] : (!fir.array<?x!fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>>, !fir.box<!fir.ptr<!fir.array<?xf32>>>, index, !fir.field) -> !fir.array<?x!fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>>
72! CHECK:           fir.result %[[VAL_32]] : !fir.array<?x!fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>>
73! CHECK:         }
74! CHECK:         fir.array_merge_store %[[VAL_11]], %[[VAL_33:.*]] to %[[VAL_0]] : !fir.array<?x!fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>>, !fir.array<?x!fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>>, !fir.box<!fir.array<?x!fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>>>
75! CHECK:         return
76! CHECK:       }
77
78! POSTOPT-LABEL: func @_QPforall_pointer_assign(
79! POSTOPT:         %[[VAL_15:.*]] = fir.allocmem !fir.array<?x!fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>>, %{{.*}}#1
80! POSTOPT:       ^bb{{[0-9]+}}(%[[VAL_16:.*]]: index, %[[VAL_17:.*]]: index):
81! POSTOPT:       ^bb{{[0-9]+}}(%[[VAL_30:.*]]: index, %[[VAL_31:.*]]: index):
82! POSTOPT:       ^bb{{[0-9]+}}(%[[VAL_46:.*]]: index, %[[VAL_47:.*]]: index):
83! POSTOPT-NOT:   ^bb{{[0-9]+}}(%{{.*}}: index, %{{.*}}: index):
84! POSTOPT:         fir.freemem %[[VAL_15]] : !fir.heap<!fir.array<?x!fir.type<_QFforall_pointer_assignTt{ptr:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>>>
85! POSTOPT:       }
86
87subroutine forall_pointer_assign(ap, at, ii, ij)
88  ! Set pointer members in an array of derived type of pointers to arrays.
89  ! Introduce a loop carried dependence to produce copy-in/copy-out code.
90  type t
91     real, pointer :: ptr(:)
92  end type t
93  type(t) :: ap(:)
94  integer :: ii, ij
95
96  forall (i = ii:ij:8)
97     ap(i)%ptr => ap(i-1)%ptr
98  end forall
99end subroutine forall_pointer_assign
100
101! CHECK-LABEL: func @_QPslice_with_explicit_iters() {
102! CHECK:         %[[VAL_0:.*]] = fir.alloca i32 {adapt.valuebyref, bindc_name = "i"}
103! CHECK:         %[[VAL_1:.*]] = arith.constant 10 : index
104! CHECK:         %[[VAL_2:.*]] = arith.constant 10 : index
105! CHECK:         %[[VAL_3:.*]] = fir.alloca !fir.array<10x10xi32> {bindc_name = "a", uniq_name = "_QFslice_with_explicit_itersEa"}
106! CHECK:         %[[VAL_4:.*]] = arith.constant 1 : i32
107! CHECK:         %[[VAL_5:.*]] = fir.convert %[[VAL_4]] : (i32) -> index
108! CHECK:         %[[VAL_6:.*]] = arith.constant 5 : i32
109! CHECK:         %[[VAL_7:.*]] = fir.convert %[[VAL_6]] : (i32) -> index
110! CHECK:         %[[VAL_8:.*]] = arith.constant 1 : index
111! CHECK:         %[[VAL_9:.*]] = fir.shape %[[VAL_1]], %[[VAL_2]] : (index, index) -> !fir.shape<2>
112! CHECK:         %[[VAL_10:.*]] = fir.array_load %[[VAL_3]](%[[VAL_9]]) : (!fir.ref<!fir.array<10x10xi32>>, !fir.shape<2>) -> !fir.array<10x10xi32>
113! CHECK:         %[[VAL_11:.*]] = fir.do_loop %[[VAL_12:.*]] = %[[VAL_5]] to %[[VAL_7]] step %[[VAL_8]] unordered iter_args(%[[VAL_13:.*]] = %[[VAL_10]]) -> (!fir.array<10x10xi32>) {
114! CHECK:           %[[VAL_14:.*]] = fir.convert %[[VAL_12]] : (index) -> i32
115! CHECK:           fir.store %[[VAL_14]] to %[[VAL_0]] : !fir.ref<i32>
116! CHECK:           %[[VAL_15:.*]] = arith.constant 1 : index
117! CHECK:           %[[VAL_16:.*]] = arith.constant 1 : i64
118! CHECK:           %[[VAL_17:.*]] = fir.convert %[[VAL_16]] : (i64) -> index
119! CHECK:           %[[VAL_18:.*]] = arith.constant 1 : i64
120! CHECK:           %[[VAL_19:.*]] = fir.convert %[[VAL_18]] : (i64) -> index
121! CHECK:           %[[VAL_20:.*]] = fir.load %[[VAL_0]] : !fir.ref<i32>
122! CHECK:           %[[VAL_21:.*]] = fir.convert %[[VAL_20]] : (i32) -> i64
123! CHECK:           %[[VAL_22:.*]] = fir.convert %[[VAL_21]] : (i64) -> index
124! CHECK:           %[[VAL_23:.*]] = arith.constant 0 : index
125! CHECK:           %[[VAL_24:.*]] = arith.subi %[[VAL_22]], %[[VAL_17]] : index
126! CHECK:           %[[VAL_25:.*]] = arith.addi %[[VAL_24]], %[[VAL_19]] : index
127! CHECK:           %[[VAL_26:.*]] = arith.divsi %[[VAL_25]], %[[VAL_19]] : index
128! CHECK:           %[[VAL_27:.*]] = arith.cmpi sgt, %[[VAL_26]], %[[VAL_23]] : index
129! CHECK:           %[[VAL_28:.*]] = arith.select %[[VAL_27]], %[[VAL_26]], %[[VAL_23]] : index
130! CHECK:           %[[VAL_29:.*]] = fir.load %[[VAL_0]] : !fir.ref<i32>
131! CHECK:           %[[VAL_30:.*]] = fir.convert %[[VAL_29]] : (i32) -> i64
132! CHECK:           %[[VAL_31:.*]] = fir.convert %[[VAL_30]] : (i64) -> index
133! CHECK:           %[[VAL_32:.*]] = arith.subi %[[VAL_31]], %[[VAL_15]] : index
134! CHECK:           %[[VAL_39:.*]] = fir.load %[[VAL_0]] : !fir.ref<i32>
135! CHECK:           %[[VAL_40:.*]] = arith.constant 0 : i32
136! CHECK:           %[[VAL_41:.*]] = arith.subi %[[VAL_40]], %[[VAL_39]] : i32
137! CHECK:           %[[VAL_33:.*]] = arith.constant 1 : index
138! CHECK:           %[[VAL_34:.*]] = arith.constant 0 : index
139! CHECK:           %[[VAL_35:.*]] = arith.subi %[[VAL_28]], %[[VAL_33]] : index
140! CHECK:           %[[VAL_36:.*]] = fir.do_loop %[[VAL_37:.*]] = %[[VAL_34]] to %[[VAL_35]] step %[[VAL_33]] unordered iter_args(%[[VAL_38:.*]] = %[[VAL_13]]) -> (!fir.array<10x10xi32>) {
141! CHECK:             %[[VAL_42:.*]] = arith.subi %[[VAL_17]], %[[VAL_15]] : index
142! CHECK:             %[[VAL_43:.*]] = arith.muli %[[VAL_37]], %[[VAL_19]] : index
143! CHECK:             %[[VAL_44:.*]] = arith.addi %[[VAL_42]], %[[VAL_43]] : index
144! CHECK:             %[[VAL_45:.*]] = fir.array_update %[[VAL_38]], %[[VAL_41]], %[[VAL_44]], %[[VAL_32]] : (!fir.array<10x10xi32>, i32, index, index) -> !fir.array<10x10xi32>
145! CHECK:             fir.result %[[VAL_45]] : !fir.array<10x10xi32>
146! CHECK:           }
147! CHECK:           fir.result %[[VAL_46:.*]] : !fir.array<10x10xi32>
148! CHECK:         }
149! CHECK:         fir.array_merge_store %[[VAL_10]], %[[VAL_47:.*]] to %[[VAL_3]] : !fir.array<10x10xi32>, !fir.array<10x10xi32>, !fir.ref<!fir.array<10x10xi32>>
150! CHECK:         return
151! CHECK:       }
152
153subroutine slice_with_explicit_iters
154
155  integer :: a(10,10)
156  forall (i=1:5)
157     a(1:i, i) = -i
158  end forall
159end subroutine slice_with_explicit_iters
160
161! CHECK-LABEL: func @_QPembox_argument_with_slice(
162! CHECK-SAME:                                     %[[VAL_0:.*]]: !fir.ref<!fir.array<1xi32>>{{.*}}, %[[VAL_1:.*]]: !fir.ref<!fir.array<2x2xi32>>{{.*}}) {
163! CHECK:         %[[VAL_2:.*]] = fir.alloca i32 {adapt.valuebyref, bindc_name = "i"}
164! CHECK:         %[[VAL_3:.*]] = arith.constant 1 : index
165! CHECK:         %[[VAL_4:.*]] = arith.constant 2 : index
166! CHECK:         %[[VAL_5:.*]] = arith.constant 2 : index
167! CHECK:         %[[VAL_6:.*]] = arith.constant 1 : i32
168! CHECK:         %[[VAL_7:.*]] = fir.convert %[[VAL_6]] : (i32) -> index
169! CHECK:         %[[VAL_8:.*]] = arith.constant 1 : i32
170! CHECK:         %[[VAL_9:.*]] = fir.convert %[[VAL_8]] : (i32) -> index
171! CHECK:         %[[VAL_10:.*]] = arith.constant 1 : index
172! CHECK:         %[[VAL_11:.*]] = fir.shape %[[VAL_3]] : (index) -> !fir.shape<1>
173! CHECK:         %[[VAL_12:.*]] = fir.array_load %[[VAL_0]](%[[VAL_11]]) : (!fir.ref<!fir.array<1xi32>>, !fir.shape<1>) -> !fir.array<1xi32>
174! CHECK:         %[[VAL_13:.*]] = fir.do_loop %[[VAL_14:.*]] = %[[VAL_7]] to %[[VAL_9]] step %[[VAL_10]] unordered iter_args(%[[VAL_15:.*]] = %[[VAL_12]]) -> (!fir.array<1xi32>) {
175! CHECK:           %[[VAL_16:.*]] = fir.convert %[[VAL_14]] : (index) -> i32
176! CHECK:           fir.store %[[VAL_16]] to %[[VAL_2]] : !fir.ref<i32>
177! CHECK-DAG:       %[[VAL_18:.*]] = arith.constant 1 : index
178! CHECK-DAG:       %[[VAL_19:.*]] = arith.constant 1 : i64
179! CHECK:           %[[VAL_20:.*]] = fir.convert %[[VAL_19]] : (i64) -> index
180! CHECK:           %[[VAL_21:.*]] = arith.addi %[[VAL_18]], %[[VAL_4]] : index
181! CHECK:           %[[VAL_22:.*]] = arith.subi %[[VAL_21]], %[[VAL_18]] : index
182! CHECK:           %[[VAL_23:.*]] = fir.load %[[VAL_2]] : !fir.ref<i32>
183! CHECK:           %[[VAL_24:.*]] = fir.convert %[[VAL_23]] : (i32) -> i64
184! CHECK:           %[[VAL_25:.*]] = fir.undefined index
185! CHECK:           %[[VAL_26:.*]] = fir.shape %[[VAL_4]], %[[VAL_5]] : (index, index) -> !fir.shape<2>
186! CHECK:           %[[VAL_27:.*]] = fir.slice %[[VAL_18]], %[[VAL_22]], %[[VAL_20]], %[[VAL_24]], %[[VAL_25]], %[[VAL_25]] : (index, index, index, i64, index, index) -> !fir.slice<2>
187! CHECK:           %[[VAL_28:.*]] = fir.embox %[[VAL_1]](%[[VAL_26]]) {{\[}}%[[VAL_27]]] : (!fir.ref<!fir.array<2x2xi32>>, !fir.shape<2>, !fir.slice<2>) -> !fir.box<!fir.array<?xi32>>
188! CHECK:           %[[VAL_29:.*]] = fir.call @_QPe(%[[VAL_28]]) {{.*}}: (!fir.box<!fir.array<?xi32>>) -> i32
189! CHECK:           %[[VAL_17:.*]] = arith.constant 1 : i32
190! CHECK:           %[[VAL_30:.*]] = arith.addi %[[VAL_29]], %[[VAL_17]] : i32
191! CHECK:           %[[VAL_31:.*]] = arith.constant 1 : index
192! CHECK:           %[[VAL_32:.*]] = fir.load %[[VAL_2]] : !fir.ref<i32>
193! CHECK:           %[[VAL_33:.*]] = fir.convert %[[VAL_32]] : (i32) -> i64
194! CHECK:           %[[VAL_34:.*]] = fir.convert %[[VAL_33]] : (i64) -> index
195! CHECK:           %[[VAL_35:.*]] = arith.subi %[[VAL_34]], %[[VAL_31]] : index
196! CHECK:           %[[VAL_36:.*]] = fir.array_update %[[VAL_15]], %[[VAL_30]], %[[VAL_35]] : (!fir.array<1xi32>, i32, index) -> !fir.array<1xi32>
197! CHECK:           fir.result %[[VAL_36]] : !fir.array<1xi32>
198! CHECK:         }
199! CHECK:         fir.array_merge_store %[[VAL_12]], %[[VAL_37:.*]] to %[[VAL_0]] : !fir.array<1xi32>, !fir.array<1xi32>, !fir.ref<!fir.array<1xi32>>
200! CHECK:         return
201! CHECK:       }
202
203subroutine embox_argument_with_slice(a,b)
204  interface
205     pure integer function e(a)
206       integer, intent(in) :: a(:)
207     end function e
208  end interface
209  integer a(1), b(2,2)
210
211  forall (i=1:1)
212     a(i) = e(b(:,i)) + 1
213  end forall
214end subroutine embox_argument_with_slice
215