1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
! { dg-do run }
! { dg-additional-options "-fdump-tree-original -fcheck=all" }
! PR fortran/107424
! Nonrectangular loop nests checks
! Valid patterns are:
! (1) a2 - var-outer
! (2) a1 * var-outer
! (3) a1 * var-outer + a2
! (4) a2 + a1 * var-outer
! (5) a1 * var-outer - a2
! (6) a2 - a1 * var-outer
! (7) var-outer * a1
! (8) var-outer * a1 + a2
! (9) a2 + var-outer * a1
! (10) var-outer * a1 - a2
! (11) a2 - var-outer * a1
module m
contains
! { dg-final { scan-tree-dump-times "for \\(one_two_inner = one_two_outer \\* -1 \\+ one_a2; one_two_inner <= one_two_outer \\* two_a1 \\+ 0; one_two_inner = one_two_inner \\+ 1\\)" 1 original } }
! (1) a2 - var-outer
! (2) a1 * var-outer
subroutine one_two()
implicit none
integer :: one_a2
integer :: two_a1
integer :: one_two_outer, one_two_inner
integer :: i, j
integer, allocatable :: var(:,:)
one_a2 = 13
two_a1 = 5
allocate(var(1:10, one_a2 - 10:two_a1 * 10), &
source=0)
if (size(var) <= 4) error stop
!$omp simd collapse(2)
do one_two_outer = 1, 10
do one_two_inner = one_a2 - one_two_outer, two_a1 * one_two_outer
!$omp atomic update
var(one_two_outer,one_two_inner) = var(one_two_outer,one_two_inner) + 2
end do
end do
do i = 1, 10
do j = one_a2 - i, two_a1 * i
if (var(i,j) /= 2) error stop
end do
end do
end
! { dg-final { scan-tree-dump-times "for \\(three_four_inner = three_four_outer \\* three_a1 \\+ three_a2; three_four_inner <= three_four_outer \\* four_a1 \\+ four_a2; three_four_inner = three_four_inner \\+ 1\\)" 1 original } }
! (3) a1 * var-outer + a2
! (4) a2 + a1 * var-outer
subroutine three_four()
implicit none
integer :: three_a1, three_a2
integer :: four_a1, four_a2
integer :: three_four_outer, three_four_inner
integer :: i, j
integer, allocatable :: var(:,:)
three_a1 = 2
three_a2 = 3
four_a1 = 3
four_a2 = 5
allocate(var(1:10, three_a1 * 1 + three_a2:four_a2 + four_a1 * 10), &
source=0)
if (size(var) <= 4) error stop
!$omp simd collapse(2)
do three_four_outer = 1, 10
do three_four_inner = three_a1 * three_four_outer + three_a2, four_a2 + four_a1 * three_four_outer
!$omp atomic update
var(three_four_outer, three_four_inner) = var(three_four_outer, three_four_inner) + 2
end do
end do
do i = 1, 10
do j = three_a1 * i + three_a2, four_a2 + four_a1 * i
if (var(i,j) /= 2) error stop
end do
end do
end
! { dg-final { scan-tree-dump-times "for \\(five_six_inner = five_six_outer \\* five_a1 \\+ D\\.\[0-9\]+; five_six_inner <= five_six_outer \\* D\\.\[0-9\]+ \\+ six_a2; five_six_inner = five_six_inner \\+ 1\\)" 1 original } }
! (5) a1 * var-outer - a2
! (6) a2 - a1 * var-outer
subroutine five_six()
implicit none
integer :: five_a1, five_a2
integer :: six_a1, six_a2
integer :: five_six_outer, five_six_inner
integer :: i, j
integer, allocatable :: var(:,:)
five_a1 = 2
five_a2 = -3
six_a1 = 3
six_a2 = 20
allocate(var(1:10, five_a1 * 1 - five_a2:six_a2 - six_a1 * 1), &
source=0)
if (size(var) <= 4) error stop
!$omp simd collapse(2)
do five_six_outer = 1, 10
do five_six_inner = five_a1 * five_six_outer - five_a2, six_a2 - six_a1 * five_six_outer
!$omp atomic update
var(five_six_outer, five_six_inner) = var(five_six_outer, five_six_inner) + 2
end do
end do
do i = 1, 10
do j = five_a1 * i - five_a2, six_a2 - six_a1 * i
if (var(i,j) /= 2) error stop
end do
end do
end
! { dg-final { scan-tree-dump-times "for \\(seven_eight_inner = seven_eight_outer \\* seven_a1 \\+ 0; seven_eight_inner <= seven_eight_outer \\* eight_a1 \\+ eight_a2; seven_eight_inner = seven_eight_inner \\+ 1\\)" 1 original } }
! (7) var-outer * a1
! (8) var-outer * a1 + a2
subroutine seven_eight()
implicit none
integer :: seven_a1
integer :: eight_a1, eight_a2
integer :: seven_eight_outer, seven_eight_inner
integer :: i, j
integer, allocatable :: var(:,:)
seven_a1 = 3
eight_a1 = 2
eight_a2 = -4
allocate(var(1:10, 1 * seven_a1 : 10 * eight_a1 + eight_a2), &
source=0)
if (size(var) <= 4) error stop
!$omp simd collapse(2)
do seven_eight_outer = 1, 10
do seven_eight_inner = seven_eight_outer * seven_a1, seven_eight_outer * eight_a1 + eight_a2
!$omp atomic update
var(seven_eight_outer, seven_eight_inner) = var(seven_eight_outer, seven_eight_inner) + 2
end do
end do
do i = 1, 10
do j = i * seven_a1, i * eight_a1 + eight_a2
if (var(i,j) /= 2) error stop
end do
end do
end
! { dg-final { scan-tree-dump-times "for \\(nine_ten_inner = nine_ten_outer \\* nine_a1 \\+ nine_a2; nine_ten_inner <= nine_ten_outer \\* ten_a1 \\+ D\\.\[0-9\]+; nine_ten_inner = nine_ten_inner \\+ 1\\)" 1 original } }
! (9) a2 + var-outer * a1
! (10) var-outer * a1 - a2
subroutine nine_ten()
implicit none
integer :: nine_a1, nine_a2
integer :: ten_a1, ten_a2
integer :: nine_ten_outer, nine_ten_inner
integer :: i, j
integer, allocatable :: var(:,:)
nine_a1 = 3
nine_a2 = 5
ten_a1 = 2
ten_a2 = 3
allocate(var(1:10, nine_a2 + 1 * nine_a1:10 * ten_a1 - ten_a2), &
source=0)
if (size(var) <= 4) error stop
!$omp simd collapse(2)
do nine_ten_outer = 1, 10
do nine_ten_inner = nine_a2 + nine_ten_outer * nine_a1, nine_ten_outer * ten_a1 - ten_a2
!$omp atomic update
var(nine_ten_outer, nine_ten_inner) = var(nine_ten_outer, nine_ten_inner) + 2
end do
end do
do i = 1, 10
do j = nine_a2 + i * nine_a1, i * ten_a1 - ten_a2
if (var(i,j) /= 2) error stop
end do
end do
end
! { dg-final { scan-tree-dump-times "for \\(eleven_inner = eleven_outer \\* D\\.\[0-9\]+ \\+ eleven_a2; eleven_inner <= 10; eleven_inner = eleven_inner \\+ 1\\)" 1 original } }
! (11) a2 - var-outer * a1
subroutine eleven()
implicit none
integer :: eleven_a1, eleven_a2
integer :: eleven_outer, eleven_inner
integer :: i, j
integer, allocatable :: var(:,:)
eleven_a1 = 2
eleven_a2 = 3
allocate(var(1:10, eleven_a2 - 10 * eleven_a1 : 10), &
source=0)
if (size(var) <= 4) error stop
!$omp simd collapse(2)
do eleven_outer = 1, 10
do eleven_inner = eleven_a2 - eleven_outer * eleven_a1, 10
!$omp atomic update
var(eleven_outer, eleven_inner) = var(eleven_outer, eleven_inner) + 2
end do
end do
do i = 1, 10
do j = eleven_a2 - i * eleven_a1, 10
if (var(i,j) /= 2) error stop
end do
end do
end
end module m
program main
use m
implicit none
call one_two()
call three_four()
call five_six()
call seven_eight()
call nine_ten()
call eleven()
end
|
