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
|
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
; RUN: opt -disable-output "-passes=print<scalar-evolution>" < %s 2>&1 | FileCheck %s
define ptr @pointer_align_down(ptr %obj) {
; CHECK-LABEL: 'pointer_align_down'
; CHECK-NEXT: Classifying expressions for: @pointer_align_down
; CHECK-NEXT: %i = ptrtoint ptr %obj to i64
; CHECK-NEXT: --> (ptrtoint ptr %obj to i64) U: full-set S: full-set
; CHECK-NEXT: %i2 = and i64 %i, 15
; CHECK-NEXT: --> (zext i4 (trunc i64 (ptrtoint ptr %obj to i64) to i4) to i64) U: [0,16) S: [0,16)
; CHECK-NEXT: %i3 = sub nsw i64 0, %i2
; CHECK-NEXT: --> (-1 * (zext i4 (trunc i64 (ptrtoint ptr %obj to i64) to i4) to i64))<nsw> U: [-15,1) S: [-15,1)
; CHECK-NEXT: %i4 = getelementptr i8, ptr %obj, i64 %i3
; CHECK-NEXT: --> ((-1 * (zext i4 (trunc i64 (ptrtoint ptr %obj to i64) to i4) to i64))<nsw> + %obj) U: full-set S: full-set
; CHECK-NEXT: Determining loop execution counts for: @pointer_align_down
;
%i = ptrtoint ptr %obj to i64
%i2 = and i64 %i, 15
%i3 = sub nsw i64 0, %i2
%i4 = getelementptr i8, ptr %obj, i64 %i3
ret ptr %i4
}
define ptr @pointer_align_down_different_donor(ptr %obj_to_align, ptr %obj_donor) {
; CHECK-LABEL: 'pointer_align_down_different_donor'
; CHECK-NEXT: Classifying expressions for: @pointer_align_down_different_donor
; CHECK-NEXT: %i = ptrtoint ptr %obj_donor to i64
; CHECK-NEXT: --> (ptrtoint ptr %obj_donor to i64) U: full-set S: full-set
; CHECK-NEXT: %i2 = and i64 %i, 15
; CHECK-NEXT: --> (zext i4 (trunc i64 (ptrtoint ptr %obj_donor to i64) to i4) to i64) U: [0,16) S: [0,16)
; CHECK-NEXT: %i3 = sub nsw i64 0, %i2
; CHECK-NEXT: --> (-1 * (zext i4 (trunc i64 (ptrtoint ptr %obj_donor to i64) to i4) to i64))<nsw> U: [-15,1) S: [-15,1)
; CHECK-NEXT: %i4 = getelementptr i8, ptr %obj_to_align, i64 %i3
; CHECK-NEXT: --> ((-1 * (zext i4 (trunc i64 (ptrtoint ptr %obj_donor to i64) to i4) to i64))<nsw> + %obj_to_align) U: full-set S: full-set
; CHECK-NEXT: Determining loop execution counts for: @pointer_align_down_different_donor
;
%i = ptrtoint ptr %obj_donor to i64
%i2 = and i64 %i, 15
%i3 = sub nsw i64 0, %i2
%i4 = getelementptr i8, ptr %obj_to_align, i64 %i3
ret ptr %i4
}
define ptr @pointer_align_up(ptr noundef %obj) {
; CHECK-LABEL: 'pointer_align_up'
; CHECK-NEXT: Classifying expressions for: @pointer_align_up
; CHECK-NEXT: %intptr = ptrtoint ptr %obj to i64
; CHECK-NEXT: --> (ptrtoint ptr %obj to i64) U: full-set S: full-set
; CHECK-NEXT: %over_boundary = add i64 %intptr, 15
; CHECK-NEXT: --> (15 + (ptrtoint ptr %obj to i64)) U: full-set S: full-set
; CHECK-NEXT: %aligned_intptr = and i64 %over_boundary, -16
; CHECK-NEXT: --> (16 * ((15 + (ptrtoint ptr %obj to i64)) /u 16))<nuw> U: [0,-15) S: [-9223372036854775808,9223372036854775793)
; CHECK-NEXT: %diff = sub i64 %aligned_intptr, %intptr
; CHECK-NEXT: --> ((16 * ((15 + (ptrtoint ptr %obj to i64)) /u 16))<nuw> + (-1 * (ptrtoint ptr %obj to i64))) U: full-set S: full-set
; CHECK-NEXT: %aligned_result = getelementptr i8, ptr %obj, i64 %diff
; CHECK-NEXT: --> ((16 * ((15 + (ptrtoint ptr %obj to i64)) /u 16))<nuw> + (-1 * (ptrtoint ptr %obj to i64)) + %obj) U: full-set S: full-set
; CHECK-NEXT: Determining loop execution counts for: @pointer_align_up
;
%intptr = ptrtoint ptr %obj to i64
%over_boundary = add i64 %intptr, 15
%aligned_intptr = and i64 %over_boundary, -16
%diff = sub i64 %aligned_intptr, %intptr
%aligned_result = getelementptr i8, ptr %obj, i64 %diff
ret ptr %aligned_result
}
define ptr @pointer_align_up_different_donor(ptr noundef %obj_to_align, ptr %obj_donor) {
; CHECK-LABEL: 'pointer_align_up_different_donor'
; CHECK-NEXT: Classifying expressions for: @pointer_align_up_different_donor
; CHECK-NEXT: %intptr = ptrtoint ptr %obj_donor to i64
; CHECK-NEXT: --> (ptrtoint ptr %obj_donor to i64) U: full-set S: full-set
; CHECK-NEXT: %over_boundary = add i64 %intptr, 15
; CHECK-NEXT: --> (15 + (ptrtoint ptr %obj_donor to i64)) U: full-set S: full-set
; CHECK-NEXT: %aligned_intptr = and i64 %over_boundary, -16
; CHECK-NEXT: --> (16 * ((15 + (ptrtoint ptr %obj_donor to i64)) /u 16))<nuw> U: [0,-15) S: [-9223372036854775808,9223372036854775793)
; CHECK-NEXT: %diff = sub i64 %aligned_intptr, %intptr
; CHECK-NEXT: --> ((16 * ((15 + (ptrtoint ptr %obj_donor to i64)) /u 16))<nuw> + (-1 * (ptrtoint ptr %obj_donor to i64))) U: full-set S: full-set
; CHECK-NEXT: %aligned_result = getelementptr i8, ptr %obj_to_align, i64 %diff
; CHECK-NEXT: --> ((16 * ((15 + (ptrtoint ptr %obj_donor to i64)) /u 16))<nuw> + (-1 * (ptrtoint ptr %obj_donor to i64)) + %obj_to_align) U: full-set S: full-set
; CHECK-NEXT: Determining loop execution counts for: @pointer_align_up_different_donor
;
%intptr = ptrtoint ptr %obj_donor to i64
%over_boundary = add i64 %intptr, 15
%aligned_intptr = and i64 %over_boundary, -16
%diff = sub i64 %aligned_intptr, %intptr
%aligned_result = getelementptr i8, ptr %obj_to_align, i64 %diff
ret ptr %aligned_result
}
define ptr @pointer_align_up_with_select(ptr %obj) {
; CHECK-LABEL: 'pointer_align_up_with_select'
; CHECK-NEXT: Classifying expressions for: @pointer_align_up_with_select
; CHECK-NEXT: %i = ptrtoint ptr %obj to i64
; CHECK-NEXT: --> (ptrtoint ptr %obj to i64) U: full-set S: full-set
; CHECK-NEXT: %i2 = and i64 %i, 15
; CHECK-NEXT: --> (zext i4 (trunc i64 (ptrtoint ptr %obj to i64) to i4) to i64) U: [0,16) S: [0,16)
; CHECK-NEXT: %i4 = sub nsw i64 0, %i2
; CHECK-NEXT: --> (-1 * (zext i4 (trunc i64 (ptrtoint ptr %obj to i64) to i4) to i64))<nsw> U: [-15,1) S: [-15,1)
; CHECK-NEXT: %i5 = getelementptr i8, ptr %obj, i64 %i4
; CHECK-NEXT: --> ((-1 * (zext i4 (trunc i64 (ptrtoint ptr %obj to i64) to i4) to i64))<nsw> + %obj) U: full-set S: full-set
; CHECK-NEXT: %i6 = getelementptr i8, ptr %i5, i64 16
; CHECK-NEXT: --> (16 + (-1 * (zext i4 (trunc i64 (ptrtoint ptr %obj to i64) to i4) to i64))<nsw> + %obj) U: full-set S: full-set
; CHECK-NEXT: %i7 = select i1 %i3, ptr %obj, ptr %i6
; CHECK-NEXT: --> %i7 U: full-set S: full-set
; CHECK-NEXT: Determining loop execution counts for: @pointer_align_up_with_select
;
%i = ptrtoint ptr %obj to i64
%i2 = and i64 %i, 15
%i3 = icmp eq i64 %i2, 0
%i4 = sub nsw i64 0, %i2
%i5 = getelementptr i8, ptr %obj, i64 %i4
%i6 = getelementptr i8, ptr %i5, i64 16
%i7 = select i1 %i3, ptr %obj, ptr %i6
ret ptr %i7
}
define ptr @pointer_align_up_with_select_different_donor(ptr %obj_to_align, ptr %obj_donor) {
; CHECK-LABEL: 'pointer_align_up_with_select_different_donor'
; CHECK-NEXT: Classifying expressions for: @pointer_align_up_with_select_different_donor
; CHECK-NEXT: %i = ptrtoint ptr %obj_donor to i64
; CHECK-NEXT: --> (ptrtoint ptr %obj_donor to i64) U: full-set S: full-set
; CHECK-NEXT: %i2 = and i64 %i, 15
; CHECK-NEXT: --> (zext i4 (trunc i64 (ptrtoint ptr %obj_donor to i64) to i4) to i64) U: [0,16) S: [0,16)
; CHECK-NEXT: %i4 = sub nsw i64 0, %i2
; CHECK-NEXT: --> (-1 * (zext i4 (trunc i64 (ptrtoint ptr %obj_donor to i64) to i4) to i64))<nsw> U: [-15,1) S: [-15,1)
; CHECK-NEXT: %i5 = getelementptr i8, ptr %obj_to_align, i64 %i4
; CHECK-NEXT: --> ((-1 * (zext i4 (trunc i64 (ptrtoint ptr %obj_donor to i64) to i4) to i64))<nsw> + %obj_to_align) U: full-set S: full-set
; CHECK-NEXT: %i6 = getelementptr i8, ptr %i5, i64 16
; CHECK-NEXT: --> (16 + (-1 * (zext i4 (trunc i64 (ptrtoint ptr %obj_donor to i64) to i4) to i64))<nsw> + %obj_to_align) U: full-set S: full-set
; CHECK-NEXT: %i7 = select i1 %i3, ptr %obj_to_align, ptr %i6
; CHECK-NEXT: --> %i7 U: full-set S: full-set
; CHECK-NEXT: Determining loop execution counts for: @pointer_align_up_with_select_different_donor
;
%i = ptrtoint ptr %obj_donor to i64
%i2 = and i64 %i, 15
%i3 = icmp eq i64 %i2, 0
%i4 = sub nsw i64 0, %i2
%i5 = getelementptr i8, ptr %obj_to_align, i64 %i4
%i6 = getelementptr i8, ptr %i5, i64 16
%i7 = select i1 %i3, ptr %obj_to_align, ptr %i6
ret ptr %i7
}
define ptr @pointer_align_up_with_select_different_objects_bad(ptr %first_obj, ptr %second_obj, ptr %obj_donor) {
; CHECK-LABEL: 'pointer_align_up_with_select_different_objects_bad'
; CHECK-NEXT: Classifying expressions for: @pointer_align_up_with_select_different_objects_bad
; CHECK-NEXT: %i = ptrtoint ptr %obj_donor to i64
; CHECK-NEXT: --> (ptrtoint ptr %obj_donor to i64) U: full-set S: full-set
; CHECK-NEXT: %i2 = and i64 %i, 15
; CHECK-NEXT: --> (zext i4 (trunc i64 (ptrtoint ptr %obj_donor to i64) to i4) to i64) U: [0,16) S: [0,16)
; CHECK-NEXT: %i4 = sub nsw i64 0, %i2
; CHECK-NEXT: --> (-1 * (zext i4 (trunc i64 (ptrtoint ptr %obj_donor to i64) to i4) to i64))<nsw> U: [-15,1) S: [-15,1)
; CHECK-NEXT: %i5 = getelementptr i8, ptr %second_obj, i64 %i4
; CHECK-NEXT: --> ((-1 * (zext i4 (trunc i64 (ptrtoint ptr %obj_donor to i64) to i4) to i64))<nsw> + %second_obj) U: full-set S: full-set
; CHECK-NEXT: %i6 = getelementptr i8, ptr %i5, i64 16
; CHECK-NEXT: --> (16 + (-1 * (zext i4 (trunc i64 (ptrtoint ptr %obj_donor to i64) to i4) to i64))<nsw> + %second_obj) U: full-set S: full-set
; CHECK-NEXT: %i7 = select i1 %i3, ptr %first_obj, ptr %i6
; CHECK-NEXT: --> %i7 U: full-set S: full-set
; CHECK-NEXT: Determining loop execution counts for: @pointer_align_up_with_select_different_objects_bad
;
%i = ptrtoint ptr %obj_donor to i64
%i2 = and i64 %i, 15
%i3 = icmp eq i64 %i2, 0
%i4 = sub nsw i64 0, %i2
%i5 = getelementptr i8, ptr %second_obj, i64 %i4
%i6 = getelementptr i8, ptr %i5, i64 16
%i7 = select i1 %i3, ptr %first_obj, ptr %i6
ret ptr %i7
}
|
