xref: /llvm-project/flang/test/Lower/HLFIR/array-ctor-as-elemental.f90 (revision 3be8e3ad0c424dbeb9e4c8401174335e106a2d5d) 
1! Test lowering of array constructors as hlfir.elemental.
2! RUN: bbc -emit-hlfir -o - %s | FileCheck %s
3
4subroutine test_as_simple_elemental(n)
5  integer :: n
6  call takes_int([(n+i, i=1,4)])
7end subroutine
8! CHECK-LABEL:   func.func @_QPtest_as_simple_elemental(
9! CHECK-SAME:                                           %[[VAL_0:.*]]: !fir.ref<i32> {fir.bindc_name = "n"}) {
10! CHECK:           %[[VAL_1:.*]]:2 = hlfir.declare %[[VAL_0]] dummy_scope %{{[0-9]+}} {uniq_name = "_QFtest_as_simple_elementalEn"} : (!fir.ref<i32>, !fir.dscope) -> (!fir.ref<i32>, !fir.ref<i32>)
11! CHECK:           %[[VAL_2:.*]] = arith.constant 4 : index
12! CHECK:           %[[VAL_3:.*]] = fir.shape %[[VAL_2]] : (index) -> !fir.shape<1>
13! CHECK:           %[[VAL_4:.*]] = arith.constant 1 : i64
14! CHECK:           %[[VAL_5:.*]] = fir.convert %[[VAL_4]] : (i64) -> index
15! CHECK:           %[[VAL_6:.*]] = arith.constant 1 : i64
16! CHECK:           %[[VAL_7:.*]] = fir.convert %[[VAL_6]] : (i64) -> index
17! CHECK:           %[[VAL_8:.*]] = arith.constant 1 : index
18! CHECK:           %[[VAL_9:.*]] = hlfir.elemental %[[VAL_3]] unordered : (!fir.shape<1>) -> !hlfir.expr<4xi32> {
19! CHECK:           ^bb0(%[[VAL_10:.*]]: index):
20! CHECK:             %[[VAL_11:.*]] = arith.subi %[[VAL_10]], %[[VAL_8]] : index
21! CHECK:             %[[VAL_12:.*]] = arith.muli %[[VAL_11]], %[[VAL_7]] : index
22! CHECK:             %[[VAL_13:.*]] = arith.addi %[[VAL_5]], %[[VAL_12]] : index
23! CHECK:             %[[VAL_14:.*]] = fir.load %[[VAL_1]]#0 : !fir.ref<i32>
24! CHECK:             %[[VAL_15:.*]] = fir.convert %[[VAL_13]] : (index) -> i64
25! CHECK:             %[[VAL_16:.*]] = fir.convert %[[VAL_15]] : (i64) -> i32
26! CHECK:             %[[VAL_17:.*]] = arith.addi %[[VAL_14]], %[[VAL_16]] : i32
27! CHECK:             hlfir.yield_element %[[VAL_17]] : i32
28! CHECK:           }
29! CHECK:           %[[VAL_18:.*]]:3 = hlfir.associate %[[VAL_19:.*]](%[[VAL_3]]) {adapt.valuebyref} : (!hlfir.expr<4xi32>, !fir.shape<1>) -> (!fir.ref<!fir.array<4xi32>>, !fir.ref<!fir.array<4xi32>>, i1)
30! CHECK:           fir.call @_QPtakes_int(%[[VAL_18]]#1) fastmath<contract> : (!fir.ref<!fir.array<4xi32>>) -> ()
31! CHECK:           hlfir.end_associate %[[VAL_18]]#1, %[[VAL_18]]#2 : !fir.ref<!fir.array<4xi32>>, i1
32! CHECK:           hlfir.destroy %[[VAL_19]] : !hlfir.expr<4xi32>
33! CHECK:           return
34! CHECK:         }
35
36subroutine test_as_strided_elemental(lb, ub, stride)
37  integer(8) :: lb, ub, stride
38  call takes_int([(i, i=lb,ub,stride)])
39end subroutine
40! CHECK-LABEL:   func.func @_QPtest_as_strided_elemental(
41! CHECK-SAME:                                            %[[VAL_0:.*]]: !fir.ref<i64> {fir.bindc_name = "lb"},
42! CHECK-SAME:                                            %[[VAL_1:.*]]: !fir.ref<i64> {fir.bindc_name = "ub"},
43! CHECK-SAME:                                            %[[VAL_2:.*]]: !fir.ref<i64> {fir.bindc_name = "stride"}) {
44! CHECK:           %[[DSCOPE:.*]] = fir.dummy_scope : !fir.dscope
45! CHECK:           %[[VAL_3:.*]]:2 = hlfir.declare %[[VAL_0]] dummy_scope %[[DSCOPE]] {uniq_name = "_QFtest_as_strided_elementalElb"} : (!fir.ref<i64>, !fir.dscope) -> (!fir.ref<i64>, !fir.ref<i64>)
46! CHECK:           %[[VAL_4:.*]]:2 = hlfir.declare %[[VAL_2]] dummy_scope %[[DSCOPE]] {uniq_name = "_QFtest_as_strided_elementalEstride"} : (!fir.ref<i64>, !fir.dscope) -> (!fir.ref<i64>, !fir.ref<i64>)
47! CHECK:           %[[VAL_5:.*]]:2 = hlfir.declare %[[VAL_1]] dummy_scope %[[DSCOPE]] {uniq_name = "_QFtest_as_strided_elementalEub"} : (!fir.ref<i64>, !fir.dscope) -> (!fir.ref<i64>, !fir.ref<i64>)
48! CHECK:           %[[VAL_6:.*]] = arith.constant 0 : i64
49! CHECK:           %[[VAL_7:.*]] = fir.load %[[VAL_5]]#0 : !fir.ref<i64>
50! CHECK:           %[[VAL_8:.*]] = fir.load %[[VAL_3]]#0 : !fir.ref<i64>
51! CHECK:           %[[VAL_9:.*]] = arith.subi %[[VAL_7]], %[[VAL_8]] : i64
52! CHECK:           %[[VAL_10:.*]] = fir.load %[[VAL_4]]#0 : !fir.ref<i64>
53! CHECK:           %[[VAL_11:.*]] = arith.addi %[[VAL_9]], %[[VAL_10]] : i64
54! CHECK:           %[[VAL_12:.*]] = fir.load %[[VAL_4]]#0 : !fir.ref<i64>
55! CHECK:           %[[VAL_13:.*]] = arith.divsi %[[VAL_11]], %[[VAL_12]] : i64
56! CHECK:           %[[VAL_14:.*]] = arith.constant 0 : i64
57! CHECK:           %[[VAL_15:.*]] = arith.cmpi sgt, %[[VAL_13]], %[[VAL_14]] : i64
58! CHECK:           %[[VAL_16:.*]] = arith.select %[[VAL_15]], %[[VAL_13]], %[[VAL_14]] : i64
59! CHECK:           %[[VAL_17:.*]] = arith.addi %[[VAL_6]], %[[VAL_16]] : i64
60! CHECK:           %[[VAL_18:.*]] = fir.convert %[[VAL_17]] : (i64) -> index
61! CHECK:           %[[VAL_19:.*]] = fir.shape %[[VAL_18]] : (index) -> !fir.shape<1>
62! CHECK:           %[[VAL_20:.*]] = fir.load %[[VAL_3]]#0 : !fir.ref<i64>
63! CHECK:           %[[VAL_21:.*]] = fir.convert %[[VAL_20]] : (i64) -> index
64! CHECK:           %[[VAL_22:.*]] = fir.load %[[VAL_4]]#0 : !fir.ref<i64>
65! CHECK:           %[[VAL_23:.*]] = fir.convert %[[VAL_22]] : (i64) -> index
66! CHECK:           %[[VAL_24:.*]] = arith.constant 1 : index
67! CHECK:           %[[VAL_25:.*]] = hlfir.elemental %[[VAL_19]] unordered : (!fir.shape<1>) -> !hlfir.expr<?xi32> {
68! CHECK:           ^bb0(%[[VAL_26:.*]]: index):
69! CHECK:             %[[VAL_27:.*]] = arith.subi %[[VAL_26]], %[[VAL_24]] : index
70! CHECK:             %[[VAL_28:.*]] = arith.muli %[[VAL_27]], %[[VAL_23]] : index
71! CHECK:             %[[VAL_29:.*]] = arith.addi %[[VAL_21]], %[[VAL_28]] : index
72! CHECK:             %[[VAL_30:.*]] = fir.convert %[[VAL_29]] : (index) -> i64
73! CHECK:             %[[VAL_31:.*]] = fir.convert %[[VAL_30]] : (i64) -> i32
74! CHECK:             hlfir.yield_element %[[VAL_31]] : i32
75! CHECK:           }
76! CHECK:           %[[VAL_32:.*]]:3 = hlfir.associate %[[VAL_33:.*]](%[[VAL_19]]) {adapt.valuebyref} : (!hlfir.expr<?xi32>, !fir.shape<1>) -> (!fir.box<!fir.array<?xi32>>, !fir.ref<!fir.array<?xi32>>, i1)
77! CHECK:           %[[VAL_34:.*]] = fir.convert %[[VAL_32]]#1 : (!fir.ref<!fir.array<?xi32>>) -> !fir.ref<!fir.array<4xi32>>
78! CHECK:           fir.call @_QPtakes_int(%[[VAL_34]]) fastmath<contract> : (!fir.ref<!fir.array<4xi32>>) -> ()
79! CHECK:           hlfir.end_associate %[[VAL_32]]#1, %[[VAL_32]]#2 : !fir.ref<!fir.array<?xi32>>, i1
80! CHECK:           hlfir.destroy %[[VAL_33]] : !hlfir.expr<?xi32>
81! CHECK:           return
82! CHECK:         }
83
84subroutine test_as_elemental_with_pure_call(n)
85  interface
86    integer pure function foo(i)
87      integer, value :: i
88    end function
89  end interface
90  integer :: n
91  call takes_int([(foo(i), i=1,4)])
92end subroutine
93! CHECK-LABEL:   func.func @_QPtest_as_elemental_with_pure_call(
94! CHECK-SAME:                                                   %[[VAL_0:.*]]: !fir.ref<i32> {fir.bindc_name = "n"}) {
95! CHECK:           %[[VAL_1:.*]]:2 = hlfir.declare %[[VAL_0]] dummy_scope %{{[0-9]+}} {uniq_name = "_QFtest_as_elemental_with_pure_callEn"} : (!fir.ref<i32>, !fir.dscope) -> (!fir.ref<i32>, !fir.ref<i32>)
96! CHECK:           %[[VAL_2:.*]] = arith.constant 4 : index
97! CHECK:           %[[VAL_3:.*]] = fir.shape %[[VAL_2]] : (index) -> !fir.shape<1>
98! CHECK:           %[[VAL_4:.*]] = arith.constant 1 : i64
99! CHECK:           %[[VAL_5:.*]] = fir.convert %[[VAL_4]] : (i64) -> index
100! CHECK:           %[[VAL_6:.*]] = arith.constant 1 : i64
101! CHECK:           %[[VAL_7:.*]] = fir.convert %[[VAL_6]] : (i64) -> index
102! CHECK:           %[[VAL_8:.*]] = arith.constant 1 : index
103! CHECK:           %[[VAL_9:.*]] = hlfir.elemental %[[VAL_3]] unordered : (!fir.shape<1>) -> !hlfir.expr<4xi32> {
104! CHECK:           ^bb0(%[[VAL_10:.*]]: index):
105! CHECK:             %[[VAL_11:.*]] = arith.subi %[[VAL_10]], %[[VAL_8]] : index
106! CHECK:             %[[VAL_12:.*]] = arith.muli %[[VAL_11]], %[[VAL_7]] : index
107! CHECK:             %[[VAL_13:.*]] = arith.addi %[[VAL_5]], %[[VAL_12]] : index
108! CHECK:             %[[VAL_14:.*]] = fir.convert %[[VAL_13]] : (index) -> i64
109! CHECK:             %[[VAL_15:.*]] = fir.convert %[[VAL_14]] : (i64) -> i32
110! CHECK:             %[[VAL_16:.*]] = fir.call @_QPfoo(%[[VAL_15]]) proc_attrs<pure> fastmath<contract> : (i32) -> i32
111! CHECK:             hlfir.yield_element %[[VAL_16]] : i32
112! CHECK:           }
113! CHECK:           %[[VAL_17:.*]]:3 = hlfir.associate %[[VAL_18:.*]](%[[VAL_3]]) {adapt.valuebyref} : (!hlfir.expr<4xi32>, !fir.shape<1>) -> (!fir.ref<!fir.array<4xi32>>, !fir.ref<!fir.array<4xi32>>, i1)
114! CHECK:           fir.call @_QPtakes_int(%[[VAL_17]]#1) fastmath<contract> : (!fir.ref<!fir.array<4xi32>>) -> ()
115! CHECK:           hlfir.end_associate %[[VAL_17]]#1, %[[VAL_17]]#2 : !fir.ref<!fir.array<4xi32>>, i1
116! CHECK:           hlfir.destroy %[[VAL_18]] : !hlfir.expr<4xi32>
117! CHECK:           return
118! CHECK:         }
119
120! CHECK-LABEL: func.func @_QPtest_with_impure_call(
121subroutine test_with_impure_call(n)
122  interface
123    integer function impure_foo(i)
124      integer, value :: i
125    end function
126  end interface
127  integer :: n
128  call takes_int([(impure_foo(i), i=1,4)])
129end subroutine
130! CHECK-NOT: hlfir.elemental
131! CHECK:  return
132
133! Test that the hlfir.expr result of the outer intrinsic call
134! is not destructed.
135subroutine test_hlfir_expr_result_destruction
136  character(4) :: a(21)
137  a = (/ (repeat(repeat(char(i),2),2),i=1,n) /)
138end subroutine
139! CHECK-LABEL:   func.func @_QPtest_hlfir_expr_result_destruction() {
140! CHECK:           %[[VAL_36:.*]] = hlfir.elemental %{{.*}} typeparams %{{.*}} unordered : (!fir.shape<1>, index) -> !hlfir.expr<?x!fir.char<1,?>> {
141! CHECK:             %[[VAL_48:.*]] = hlfir.as_expr %{{.*}} move %{{.*}} : (!fir.ref<!fir.char<1>>, i1) -> !hlfir.expr<!fir.char<1>>
142! CHECK:             %[[VAL_51:.*]]:3 = hlfir.associate %[[VAL_48]] typeparams %{{.*}} {adapt.valuebyref} : (!hlfir.expr<!fir.char<1>>, index) -> (!fir.ref<!fir.char<1>>, !fir.ref<!fir.char<1>>, i1)
143! CHECK:             %[[VAL_64:.*]]:2 = hlfir.declare %{{.*}} typeparams %{{.*}} {uniq_name = ".tmp.intrinsic_result"} : (!fir.heap<!fir.char<1,2>>, index) -> (!fir.heap<!fir.char<1,2>>, !fir.heap<!fir.char<1,2>>)
144! CHECK:             %[[VAL_66:.*]] = hlfir.as_expr %[[VAL_64]]#0 move %{{.*}} : (!fir.heap<!fir.char<1,2>>, i1) -> !hlfir.expr<!fir.char<1,2>>
145! CHECK:             %[[VAL_68:.*]]:3 = hlfir.associate %[[VAL_66]] typeparams %{{.*}} {adapt.valuebyref} : (!hlfir.expr<!fir.char<1,2>>, index) -> (!fir.ref<!fir.char<1,2>>, !fir.ref<!fir.char<1,2>>, i1)
146! CHECK:             %[[VAL_81:.*]]:2 = hlfir.declare %{{.*}} typeparams %{{.*}} {uniq_name = ".tmp.intrinsic_result"} : (!fir.heap<!fir.char<1,4>>, index) -> (!fir.heap<!fir.char<1,4>>, !fir.heap<!fir.char<1,4>>)
147! CHECK:             %[[VAL_83:.*]] = hlfir.as_expr %[[VAL_81]]#0 move %{{.*}} : (!fir.heap<!fir.char<1,4>>, i1) -> !hlfir.expr<!fir.char<1,4>>
148! CHECK-NOT:         hlfir.destroy %[[VAL_83]]
149! CHECK:             hlfir.end_associate %[[VAL_68]]#1, %[[VAL_68]]#2 : !fir.ref<!fir.char<1,2>>, i1
150! CHECK-NOT:         hlfir.destroy %[[VAL_83]]
151! CHECK:             hlfir.destroy %[[VAL_66]] : !hlfir.expr<!fir.char<1,2>>
152! CHECK-NOT:         hlfir.destroy %[[VAL_83]]
153! CHECK:             hlfir.end_associate %[[VAL_51]]#1, %[[VAL_51]]#2 : !fir.ref<!fir.char<1>>, i1
154! CHECK-NOT:         hlfir.destroy %[[VAL_83]]
155! CHECK:             hlfir.destroy %[[VAL_48]] : !hlfir.expr<!fir.char<1>>
156! CHECK-NOT:         hlfir.destroy %[[VAL_83]]
157! CHECK:             hlfir.yield_element %[[VAL_83]] : !hlfir.expr<!fir.char<1,4>>
158! CHECK-NOT:         hlfir.destroy %[[VAL_83]]
159! CHECK:           }
160! CHECK-NOT:       hlfir.destroy %[[VAL_83]]
161