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
|
; RUN: opt -instsimplify -S < %s | FileCheck %s
; @test0
; CHECK: ret i64 undef
define i64 @test0() {
%r = mul i64 undef, undef
ret i64 %r
}
; @test1
; CHECK: ret i64 undef
define i64 @test1() {
%r = mul i64 3, undef
ret i64 %r
}
; @test2
; CHECK: ret i64 undef
define i64 @test2() {
%r = mul i64 undef, 3
ret i64 %r
}
; @test3
; CHECK: ret i64 0
define i64 @test3() {
%r = mul i64 undef, 6
ret i64 %r
}
; @test4
; CHECK: ret i64 0
define i64 @test4() {
%r = mul i64 6, undef
ret i64 %r
}
; @test5
; CHECK: ret i64 undef
define i64 @test5() {
%r = and i64 undef, undef
ret i64 %r
}
; @test6
; CHECK: ret i64 undef
define i64 @test6() {
%r = or i64 undef, undef
ret i64 %r
}
; @test7
; CHECK: ret i64 undef
define i64 @test7() {
%r = udiv i64 undef, 1
ret i64 %r
}
; @test8
; CHECK: ret i64 undef
define i64 @test8() {
%r = sdiv i64 undef, 1
ret i64 %r
}
; @test9
; CHECK: ret i64 0
define i64 @test9() {
%r = urem i64 undef, 1
ret i64 %r
}
; @test10
; CHECK: ret i64 0
define i64 @test10() {
%r = srem i64 undef, 1
ret i64 %r
}
; @test11
; CHECK: ret i64 undef
define i64 @test11() {
%r = shl i64 undef, undef
ret i64 %r
}
; @test11b
; CHECK: ret i64 undef
define i64 @test11b(i64 %a) {
%r = shl i64 %a, undef
ret i64 %r
}
; @test12
; CHECK: ret i64 undef
define i64 @test12() {
%r = ashr i64 undef, undef
ret i64 %r
}
; @test12b
; CHECK: ret i64 undef
define i64 @test12b(i64 %a) {
%r = ashr i64 %a, undef
ret i64 %r
}
; @test13
; CHECK: ret i64 undef
define i64 @test13() {
%r = lshr i64 undef, undef
ret i64 %r
}
; @test13b
; CHECK: ret i64 undef
define i64 @test13b(i64 %a) {
%r = lshr i64 %a, undef
ret i64 %r
}
; @test14
; CHECK: ret i1 undef
define i1 @test14() {
%r = icmp slt i64 undef, undef
ret i1 %r
}
; @test15
; CHECK: ret i1 undef
define i1 @test15() {
%r = icmp ult i64 undef, undef
ret i1 %r
}
; @test16
; CHECK: ret i64 undef
define i64 @test16(i64 %a) {
%r = select i1 undef, i64 %a, i64 undef
ret i64 %r
}
; @test17
; CHECK: ret i64 undef
define i64 @test17(i64 %a) {
%r = select i1 undef, i64 undef, i64 %a
ret i64 %r
}
; @test18
; CHECK: ret i64 undef
define i64 @test18(i64 %a) {
%r = call i64 (i64)* undef(i64 %a)
ret i64 %r
}
; CHECK-LABEL: @test19
; CHECK: ret <4 x i8> undef
define <4 x i8> @test19(<4 x i8> %a) {
%b = shl <4 x i8> %a, <i8 8, i8 9, i8 undef, i8 -1>
ret <4 x i8> %b
}
|
