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
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
|
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 5
; RUN: opt < %s -disable-output "-passes=print<da>" 2>&1 \
; RUN: -da-disable-delinearization-checks | FileCheck %s
;; for (long int i = 0; i < 10; i++) {
;; for (long int j = 0; j < 10; j++) {
;; for (long int k = 0; k < 10; k++) {
;; for (long int l = 0; l < 10; l++)
;; A[i][j][k][l] = i;
;; }
;; for (long int k = 1; k < 11; k++) {
;; for (long int l = 0; l < 10; l++)
;; A[i + 4][j + 3][k + 2][l + 1] = l;
define void @samebd0(ptr %A) nounwind uwtable ssp {
; CHECK-LABEL: 'samebd0'
; CHECK-NEXT: Src: store i64 %i.013, ptr %arrayidx12, align 8 --> Dst: store i64 %i.013, ptr %arrayidx12, align 8
; CHECK-NEXT: da analyze - none!
; CHECK-NEXT: Src: store i64 %i.013, ptr %arrayidx12, align 8 --> Dst: store i64 %l17.04, ptr %arrayidx24, align 8
; CHECK-NEXT: da analyze - output [-4 -3] / assuming 2 loop level(s) fused: [-4 -3 -3 -1]!
; CHECK-NEXT: Src: store i64 %l17.04, ptr %arrayidx24, align 8 --> Dst: store i64 %l17.04, ptr %arrayidx24, align 8
; CHECK-NEXT: da analyze - none!
;
entry:
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %entry, %for.inc33
%i.013 = phi i64 [ %inc34, %for.inc33 ], [ 0, %entry ]
br label %for.cond4.preheader
for.cond4.preheader: ; preds = %for.cond1.preheader, %for.inc30
%j.09 = phi i64 [ %inc31, %for.inc30 ], [ 0, %for.cond1.preheader ]
br label %for.cond7.preheader
for.cond7.preheader: ; preds = %for.cond4.preheader, %for.inc12
%k.07 = phi i64 [ %inc13, %for.inc12 ], [ 0, %for.cond4.preheader ]
br label %for.body9
for.body9: ; preds = %for.cond7.preheader, %for.body9
%l.02 = phi i64 [ %inc11, %for.body9 ], [ 0, %for.cond7.preheader ]
%arrayidx12 = getelementptr inbounds [100 x [100 x [100 x i64]]], ptr %A, i64 %i.013, i64 %j.09, i64 %k.07, i64 %l.02
store i64 %i.013, ptr %arrayidx12, align 8
%inc11 = add nsw i64 %l.02, 1
%exitcond15 = icmp ne i64 %inc11, 10
br i1 %exitcond15, label %for.body9, label %for.inc12
for.inc12: ; preds = %for.body9
%inc13 = add nsw i64 %k.07, 1
%exitcond16 = icmp ne i64 %inc13, 10
br i1 %exitcond16, label %for.cond7.preheader, label %for.cond18.preheader
for.cond18.preheader: ; preds = %for.inc12, %for.inc27
%k14.06 = phi i64 [ %inc28, %for.inc27 ], [ 1, %for.inc12 ]
br label %for.body20
for.body20: ; preds = %for.cond18.preheader, %for.body20
%l17.04 = phi i64 [ %inc25, %for.body20 ], [ 0, %for.cond18.preheader ]
%add = add nsw i64 %l17.04, 1
%add21 = add nsw i64 %k14.06, 2
%add22 = add nsw i64 %j.09, 3
%add23 = add nsw i64 %i.013, 4
%arrayidx24 = getelementptr inbounds [100 x [100 x [100 x i64]]], ptr %A, i64 %add23, i64 %add22, i64 %add21, i64 %add
store i64 %l17.04, ptr %arrayidx24, align 8
%inc25 = add nsw i64 %l17.04, 1
%exitcond = icmp ne i64 %inc25, 10
br i1 %exitcond, label %for.body20, label %for.inc27
for.inc27: ; preds = %for.body20
%inc28 = add nsw i64 %k14.06, 1
%exitcond17 = icmp ne i64 %inc28, 11
br i1 %exitcond17, label %for.cond18.preheader, label %for.inc30
for.inc30: ; preds = %for.inc27
%inc31 = add nsw i64 %j.09, 1
%exitcond18 = icmp ne i64 %inc31, 10
br i1 %exitcond18, label %for.cond4.preheader, label %for.inc33
for.inc33: ; preds = %for.inc30
%inc34 = add nsw i64 %i.013, 1
%exitcond19 = icmp ne i64 %inc34, 10
br i1 %exitcond19, label %for.cond1.preheader, label %for.end35
for.end35: ; preds = %for.inc33
ret void
}
;; for (long int i = 0; i < 10; i++)
;; A[4*i + 2] = i;
;; for (long int j = 0; j < 10; j++)
;; tmp = A[j + 2];
define void @samebd1(ptr %A) nounwind uwtable ssp {
; CHECK-LABEL: 'samebd1'
; CHECK-NEXT: Src: store i64 %i.03, ptr %arrayidx, align 4 --> Dst: store i64 %i.03, ptr %arrayidx, align 4
; CHECK-NEXT: da analyze - none!
; CHECK-NEXT: Src: store i64 %i.03, ptr %arrayidx, align 4 --> Dst: %0 = load i64, ptr %arrayidx7, align 4
; CHECK-NEXT: da analyze - flow [|<] / assuming 1 loop level(s) fused: [<=|<]!
; CHECK-NEXT: Src: %0 = load i64, ptr %arrayidx7, align 4 --> Dst: %0 = load i64, ptr %arrayidx7, align 4
; CHECK-NEXT: da analyze - none!
;
entry:
br label %for.body
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
%mul = shl nsw i64 %i.03, 2
%add = add nsw i64 %mul, 2
%arrayidx = getelementptr inbounds i64, ptr %A, i64 %add
store i64 %i.03, ptr %arrayidx, align 4
%inc = add nsw i64 %i.03, 1
%exitcond5 = icmp ne i64 %inc, 10
br i1 %exitcond5, label %for.body, label %for.body4.preheader
for.body4.preheader: ; preds = %for.body
br label %for.body4
for.body4: ; preds = %for.body4.preheader, %for.body4
%j.02 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.body4.preheader ]
%add64 = add nsw i64 %j.02, 2
%arrayidx7 = getelementptr inbounds i64, ptr %A, i64 %add64
%0 = load i64, ptr %arrayidx7, align 4
%inc9 = add nsw i64 %j.02, 1
%exitcond = icmp ne i64 %inc9, 10
br i1 %exitcond, label %for.body4, label %for.end10
for.end10: ; preds = %for.body4
ret void
}
;; No information for SameSD loops is generated as MIV test is not supported
;; on separate loops yet.
;; for (long int i = 0; i < 10; i++) {
;; for (long int j = 0; j < 10; j++) {
;; for (long int k = 0; k < 10; k++) {
;; for (long int l = 0; l < 10; l++)
;; A[i][j][k][l] = i;
;; }
;; for (long int k = 1; k < 11; k++) {
;; for (long int l = 0; l < 10; l++)
;; A[i + 4][j + 3][k + 2][k + l] = l;
define void @non_samebd0(ptr %A) nounwind uwtable ssp {
; CHECK-LABEL: 'non_samebd0'
; CHECK-NEXT: Src: store i64 %i.013, ptr %arrayidx12, align 8 --> Dst: store i64 %i.013, ptr %arrayidx12, align 8
; CHECK-NEXT: da analyze - none!
; CHECK-NEXT: Src: store i64 %i.013, ptr %arrayidx12, align 8 --> Dst: store i64 %l17.04, ptr %arrayidx24, align 8
; CHECK-NEXT: da analyze - output [-4 -3]!
; CHECK-NEXT: Src: store i64 %l17.04, ptr %arrayidx24, align 8 --> Dst: store i64 %l17.04, ptr %arrayidx24, align 8
; CHECK-NEXT: da analyze - none!
;
entry:
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %entry, %for.inc33
%i.013 = phi i64 [ %inc34, %for.inc33 ], [ 0, %entry ]
br label %for.cond4.preheader
for.cond4.preheader: ; preds = %for.cond1.preheader, %for.inc30
%j.09 = phi i64 [ %inc31, %for.inc30 ], [ 0, %for.cond1.preheader ]
br label %for.cond7.preheader
for.cond7.preheader: ; preds = %for.cond4.preheader, %for.inc12
%k.07 = phi i64 [ %inc13, %for.inc12 ], [ 0, %for.cond4.preheader ]
br label %for.body9
for.body9: ; preds = %for.cond7.preheader, %for.body9
%l.02 = phi i64 [ %inc11, %for.body9 ], [ 0, %for.cond7.preheader ]
%arrayidx12 = getelementptr inbounds [100 x [100 x [100 x i64]]], ptr %A, i64 %i.013, i64 %j.09, i64 %k.07, i64 %l.02
store i64 %i.013, ptr %arrayidx12, align 8
%inc11 = add nsw i64 %l.02, 1
%exitcond15 = icmp ne i64 %inc11, 10
br i1 %exitcond15, label %for.body9, label %for.inc12
for.inc12: ; preds = %for.body9
%inc13 = add nsw i64 %k.07, 1
%exitcond16 = icmp ne i64 %inc13, 10
br i1 %exitcond16, label %for.cond7.preheader, label %for.cond18.preheader
for.cond18.preheader: ; preds = %for.inc12, %for.inc27
%k14.06 = phi i64 [ %inc28, %for.inc27 ], [ 1, %for.inc12 ]
br label %for.body20
for.body20: ; preds = %for.cond18.preheader, %for.body20
%l17.04 = phi i64 [ %inc25, %for.body20 ], [ 0, %for.cond18.preheader ]
%add = add nsw i64 %k14.06, %l17.04
%add21 = add nsw i64 %k14.06, 2
%add22 = add nsw i64 %j.09, 3
%add23 = add nsw i64 %i.013, 4
%arrayidx24 = getelementptr inbounds [100 x [100 x [100 x i64]]], ptr %A, i64 %add23, i64 %add22, i64 %add21, i64 %add
store i64 %l17.04, ptr %arrayidx24, align 8
%inc25 = add nsw i64 %l17.04, 1
%exitcond = icmp ne i64 %inc25, 10
br i1 %exitcond, label %for.body20, label %for.inc27
for.inc27: ; preds = %for.body20
%inc28 = add nsw i64 %k14.06, 1
%exitcond17 = icmp ne i64 %inc28, 11
br i1 %exitcond17, label %for.cond18.preheader, label %for.inc30
for.inc30: ; preds = %for.inc27
%inc31 = add nsw i64 %j.09, 1
%exitcond18 = icmp ne i64 %inc31, 10
br i1 %exitcond18, label %for.cond4.preheader, label %for.inc33
for.inc33: ; preds = %for.inc30
%inc34 = add nsw i64 %i.013, 1
%exitcond19 = icmp ne i64 %inc34, 10
br i1 %exitcond19, label %for.cond1.preheader, label %for.end35
for.end35: ; preds = %for.inc33
ret void
}
;; Loops with different tripcounts are not considered as SameBD
;; for (long int i = 0; i < 10; i++)
;; A[4*i + 2] = i;
;; for (long int j = 0; j < 11; j++)
;; tmp = A[j + 2];
define void @non_samebd1(ptr %A) nounwind uwtable ssp {
; CHECK-LABEL: 'non_samebd1'
; CHECK-NEXT: Src: store i64 %i.03, ptr %arrayidx, align 4 --> Dst: store i64 %i.03, ptr %arrayidx, align 4
; CHECK-NEXT: da analyze - none!
; CHECK-NEXT: Src: store i64 %i.03, ptr %arrayidx, align 4 --> Dst: %0 = load i64, ptr %arrayidx7, align 4
; CHECK-NEXT: da analyze - flow [|<]!
; CHECK-NEXT: Src: %0 = load i64, ptr %arrayidx7, align 4 --> Dst: %0 = load i64, ptr %arrayidx7, align 4
; CHECK-NEXT: da analyze - none!
;
entry:
br label %for.body
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
%mul = shl nsw i64 %i.03, 2
%add = add nsw i64 %mul, 2
%arrayidx = getelementptr inbounds i64, ptr %A, i64 %add
store i64 %i.03, ptr %arrayidx, align 4
%inc = add nsw i64 %i.03, 1
%exitcond5 = icmp ne i64 %inc, 10
br i1 %exitcond5, label %for.body, label %for.body4.preheader
for.body4.preheader: ; preds = %for.body
br label %for.body4
for.body4: ; preds = %for.body4.preheader, %for.body4
%j.02 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.body4.preheader ]
%add64 = add nsw i64 %j.02, 2
%arrayidx7 = getelementptr inbounds i64, ptr %A, i64 %add64
%0 = load i64, ptr %arrayidx7, align 4
%inc9 = add nsw i64 %j.02, 1
%exitcond = icmp ne i64 %inc9, 11
br i1 %exitcond, label %for.body4, label %for.end10
for.end10: ; preds = %for.body4
ret void
}
|
