xref: /llvm-project/flang/test/Lower/equivalence-2.f90 (revision f35f863a88f83332bef9605ef4cfe4f05c066efb)
1! RUN: bbc -emit-fir -hlfir=false -o - %s | FileCheck %s
2
3! Check more advanced equivalence cases
4
5! Several set of local and global equivalences in the same scope
6! CHECK-LABEL: @_QPtest_eq_sets
7subroutine test_eq_sets
8  DIMENSION Al(4), Bl(4)
9  EQUIVALENCE (Al(1), Bl(2))
10  ! CHECK-DAG: %[[albl:.*]] = fir.alloca !fir.array<20xi8>
11  ! CHECK-DAG: %[[alAddr:.*]] = fir.coordinate_of %[[albl]], %c4{{.*}} : (!fir.ref<!fir.array<20xi8>>, index) -> !fir.ref<i8>
12  ! CHECK-DAG: %[[al:.*]] = fir.convert %[[alAddr]] : (!fir.ref<i8>) -> !fir.ptr<!fir.array<4xf32>>
13  ! CHECK-DAG: %[[blAddr:.*]] = fir.coordinate_of %[[albl]], %c0{{.*}} : (!fir.ref<!fir.array<20xi8>>, index) -> !fir.ref<i8>
14  ! CHECK-DAG: %[[bl:.*]] = fir.convert %[[blAddr]] : (!fir.ref<i8>) -> !fir.ptr<!fir.array<4xf32>>
15
16
17  DIMENSION Il(2), Xl(2)
18  EQUIVALENCE (Il(2), Xl(1))
19  ! CHECK-DAG: %[[ilxl:.*]] = fir.alloca !fir.array<12xi8>
20  ! CHECK-DAG: %[[ilAddr:.*]] = fir.coordinate_of %[[ilxl]], %c0{{.*}} : (!fir.ref<!fir.array<12xi8>>, index) -> !fir.ref<i8>
21  ! CHECK-DAG: %[[il:.*]] = fir.convert %[[ilAddr]] : (!fir.ref<i8>) -> !fir.ptr<!fir.array<2xi32>>
22  ! CHECK-DAG: %[[xlAddr:.*]] = fir.coordinate_of %[[ilxl]], %c4{{.*}} : (!fir.ref<!fir.array<12xi8>>, index) -> !fir.ref<i8>
23  ! CHECK-DAG: %[[xl:.*]] = fir.convert %[[xlAddr]] : (!fir.ref<i8>) -> !fir.ptr<!fir.array<2xf32>>
24
25  DIMENSION Ag(2), Bg(2)
26  SAVE Ag, Bg
27  EQUIVALENCE (Ag(1), Bg(2))
28  ! CHECK-DAG: %[[agbg:.*]] = fir.address_of(@_QFtest_eq_setsEag) : !fir.ref<!fir.array<12xi8>>
29  ! CHECK-DAG: %[[agAddr:.*]] = fir.coordinate_of %[[agbg]], %c4{{.*}} : (!fir.ref<!fir.array<12xi8>>, index) -> !fir.ref<i8>
30  ! CHECK-DAG: %[[ag:.*]] = fir.convert %[[agAddr]] : (!fir.ref<i8>) -> !fir.ptr<!fir.array<2xf32>>
31  ! CHECK-DAG: %[[bgAddr:.*]] = fir.coordinate_of %[[agbg]], %c0{{.*}} : (!fir.ref<!fir.array<12xi8>>, index) -> !fir.ref<i8>
32  ! CHECK-DAG: %[[bg:.*]] = fir.convert %[[bgAddr]] : (!fir.ref<i8>) -> !fir.ptr<!fir.array<2xf32>>
33
34  DIMENSION Ig(2), Xg(2)
35  SAVE Ig, Xg
36  EQUIVALENCE (Ig(1), Xg(1))
37  ! CHECK-DAG: %[[igxg:.*]] = fir.address_of(@_QFtest_eq_setsEig) : !fir.ref<!fir.array<8xi8>>
38  ! CHECK-DAG: %[[igOffset:.*]] = arith.constant 0 : index
39  ! CHECK-DAG: %[[igAddr:.*]] = fir.coordinate_of %[[igxg]], %c0{{.*}} : (!fir.ref<!fir.array<8xi8>>, index) -> !fir.ref<i8>
40  ! CHECK-DAG: %[[ig:.*]] = fir.convert %[[igAddr]] : (!fir.ref<i8>) -> !fir.ptr<!fir.array<2xi32>>
41  ! CHECK-DAG: %[[xgAddr:.*]] = fir.coordinate_of %[[igxg]], %c0{{.*}} : (!fir.ref<!fir.array<8xi8>>, index) -> !fir.ref<i8>
42  ! CHECK-DAG: %[[xg:.*]] = fir.convert %[[xgAddr]] : (!fir.ref<i8>) -> !fir.ptr<!fir.array<2xf32>>
43
44  ! CHECK: %[[alCast:.*]] = fir.convert %[[al]] : (!fir.ptr<!fir.array<4xf32>>) -> !fir.ref<!fir.array<4xf32>>
45  ! CHECK: %[[blCast:.*]] = fir.convert %[[bl]] : (!fir.ptr<!fir.array<4xf32>>) -> !fir.ref<!fir.array<4xf32>>
46  ! CHECK: %[[ilCast:.*]] = fir.convert %[[il]] : (!fir.ptr<!fir.array<2xi32>>) -> !fir.ref<!fir.array<2xi32>>
47  ! CHECK: %[[xlCast:.*]] = fir.convert %[[xl]] : (!fir.ptr<!fir.array<2xf32>>) -> !fir.ref<!fir.array<2xf32>>
48  ! CHECK: %[[agCast:.*]] = fir.convert %[[ag]] : (!fir.ptr<!fir.array<2xf32>>) -> !fir.ref<!fir.array<2xf32>>
49  ! CHECK: %[[bgCast:.*]] = fir.convert %[[bg]] : (!fir.ptr<!fir.array<2xf32>>) -> !fir.ref<!fir.array<2xf32>>
50  ! CHECK: %[[xgCast:.*]] = fir.convert %[[xg]] : (!fir.ptr<!fir.array<2xf32>>) -> !fir.ref<!fir.array<2xf32>>
51  ! CHECK: %[[igCast:.*]] = fir.convert %[[ig]] : (!fir.ptr<!fir.array<2xi32>>) -> !fir.ref<!fir.array<2xi32>>
52
53  call fooc(Al, Bl, Il, Xl, Ag, Bg, Xg, Ig)
54  ! CHECK: fir.call @_QPfooc(%[[alCast]], %[[blCast]], %[[ilCast]], %[[xlCast]], %[[agCast]], %[[bgCast]], %[[xgCast]], %[[igCast]])
55
56end subroutine
57
58
59! Mixing global equivalence and entry
60! CHECK-LABEL: @_QPeq_and_entry_foo()
61subroutine eq_and_entry_foo
62  SAVE x, i
63  DIMENSION :: x(2)
64  EQUIVALENCE (x(2), i)
65  call foo1(x, i)
66  ! CHECK: %[[xi:.*]] = fir.address_of(@_QFeq_and_entry_fooEi) : !fir.ref<!fir.array<8xi8>>
67
68  ! CHECK-DAG: %[[iOffset:.*]] = arith.constant 4 : index
69  ! CHECK-DAG: %[[iAddr:.*]] = fir.coordinate_of %[[xi]], %[[iOffset]] : (!fir.ref<!fir.array<8xi8>>, index) -> !fir.ref<i8>
70  ! CHECK-DAG: %[[i:.*]] = fir.convert %[[iAddr]] : (!fir.ref<i8>) -> !fir.ptr<i32>
71
72  ! CHECK-DAG: %[[xOffset:.*]] = arith.constant 0 : index
73  ! CHECK-DAG: %[[xAddr:.*]] = fir.coordinate_of %[[xi]], %[[xOffset]] : (!fir.ref<!fir.array<8xi8>>, index) -> !fir.ref<i8>
74  ! CHECK-DAG: %[[x:.*]] = fir.convert %[[xAddr]] : (!fir.ref<i8>) -> !fir.ptr<!fir.array<2xf32>>
75  call foo2(x, i)
76  ! CHECK: %[[xCast:.*]] = fir.convert %[[x]] : (!fir.ptr<!fir.array<2xf32>>) -> !fir.ref<!fir.array<2xf32>>
77  ! CHECK: %[[iCast:.*]] = fir.convert %[[i]] : (!fir.ptr<i32>) -> !fir.ref<i32>
78  ! CHECK: fir.call @_QPfoo1(%[[xCast]], %[[iCast]]) {{.*}}: (!fir.ref<!fir.array<2xf32>>, !fir.ref<i32>) -> ()
79  entry eq_and_entry_bar
80  call foo2(x, i)
81  ! CHECK: %[[xCast2:.*]] = fir.convert %[[x]] : (!fir.ptr<!fir.array<2xf32>>) -> !fir.ref<!fir.array<2xf32>>
82  ! CHECK: %[[iCast2:.*]] = fir.convert %[[i]] : (!fir.ptr<i32>) -> !fir.ref<i32>
83  ! CHECK: fir.call @_QPfoo2(%[[xCast2]], %[[iCast2]]) {{.*}}: (!fir.ref<!fir.array<2xf32>>, !fir.ref<i32>) -> ()
84end
85
86! CHECK-LABEL: @_QPeq_and_entry_bar()
87  ! CHECK: %[[xi:.*]] = fir.address_of(@_QFeq_and_entry_fooEi) : !fir.ref<!fir.array<8xi8>>
88
89  ! CHECK-DAG: %[[iOffset:.*]] = arith.constant 4 : index
90  ! CHECK-DAG: %[[iAddr:.*]] = fir.coordinate_of %[[xi]], %[[iOffset]] : (!fir.ref<!fir.array<8xi8>>, index) -> !fir.ref<i8>
91  ! CHECK-DAG: %[[i:.*]] = fir.convert %[[iAddr]] : (!fir.ref<i8>) -> !fir.ptr<i32>
92
93  ! CHECK-DAG: %[[xOffset:.*]] = arith.constant 0 : index
94  ! CHECK-DAG: %[[xAddr:.*]] = fir.coordinate_of %[[xi]], %[[xOffset]] : (!fir.ref<!fir.array<8xi8>>, index) -> !fir.ref<i8>
95  ! CHECK-DAG: %[[x:.*]] = fir.convert %[[xAddr]] : (!fir.ref<i8>) -> !fir.ptr<!fir.array<2xf32>>
96  ! CHECK-NOT: fir.call @_QPfoo1
97  ! CHECK: %[[xCast:.*]] = fir.convert %[[x]] : (!fir.ptr<!fir.array<2xf32>>) -> !fir.ref<!fir.array<2xf32>>
98  ! CHECK: %[[iCast:.*]] = fir.convert %[[i]] : (!fir.ptr<i32>) -> !fir.ref<i32>
99  ! CHECK: fir.call @_QPfoo2(%[[xCast]], %[[iCast]]) {{.*}}: (!fir.ref<!fir.array<2xf32>>, !fir.ref<i32>) -> ()
100
101
102! Check that cases where equivalenced local variables and common blocks will
103! share the same offset use the correct stores
104! CHECK-LABEL: @_QPeq_and_comm_same_offset()
105subroutine eq_and_comm_same_offset
106  real common_arr1(133),common_arr2(133)
107  common /my_common_block/ common_arr1,common_arr2
108  real arr1(133),arr2(133)
109  real arr3(133,133),arr4(133,133)
110  equivalence(arr1,common_arr1),(arr2,common_arr2)
111  equivalence(arr3,arr4)
112
113  ! CHECK: %[[arr4Store:.*]] = fir.alloca !fir.array<70756xi8> {uniq_name = "_QFeq_and_comm_same_offsetEarr3"}
114  ! CHECK: %[[mcbAddr:.*]] = fir.address_of(@my_common_block_) : !fir.ref<!fir.array<1064xi8>>
115  ! CHECK: %[[mcbCast:.*]] = fir.convert %[[mcbAddr]] : (!fir.ref<!fir.array<1064xi8>>) -> !fir.ref<!fir.array<?xi8>>
116  ! CHECK: %[[c0:.*]] = arith.constant 0 : index
117  ! CHECK: %[[mcbCoor:.*]] = fir.coordinate_of %[[mcbCast]], %[[c0]] : (!fir.ref<!fir.array<?xi8>>, index) -> !fir.ref<i8>
118  ! CHECK: %[[mcbCoorCast:.*]] = fir.convert %[[mcbCoor]] : (!fir.ref<i8>) -> !fir.ptr<!fir.array<133xf32>>
119  ! CHECK: %[[c1:.*]] = arith.constant 0 : index
120  ! CHECK: %[[arr4Addr:.*]] = fir.coordinate_of %[[arr4Store]], %[[c1]] : (!fir.ref<!fir.array<70756xi8>>, index) -> !fir.ref<i8>
121  ! CHECK: %[[arr4Cast:.*]] = fir.convert %[[arr4Addr]] : (!fir.ref<i8>) -> !fir.ptr<!fir.array<133x133xf32>>
122
123  arr1(1) = 1
124  ! CHECK:%[[mcbFinalAddr:.*]] = fir.coordinate_of %[[mcbCoorCast]], %{{.*}} : (!fir.ptr<!fir.array<133xf32>>, i64) -> !fir.ref<f32>
125  ! CHECK:fir.store %{{.*}} to %[[mcbFinalAddr]] : !fir.ref<f32>
126
127  arr4(1,1) = 2
128  ! CHECK: %[[arr4FinalAddr:.*]] = fir.coordinate_of %[[arr4Cast]], %{{.*}}, %{{.*}} : (!fir.ptr<!fir.array<133x133xf32>>, i64, i64) -> !fir.ref<f32>
129  ! CHECK: fir.store %{{.*}} to %[[arr4FinalAddr]] : !fir.ref<f32>
130end subroutine
131