and-or-icmp-zero.ll
10.5 KB
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
263
; RUN: opt < %s -instsimplify -S | FileCheck %s
; In the next 16 tests (4 commutes * 2 (and/or) * 2 optional ptrtoint casts),
; eliminate the simple (not) null check because that compare is implied by the
; masked compare of the same operand.
; Vary types between scalar and vector and weird for extra coverage.
; or (icmp eq (and X, ?), 0), (icmp eq X, 0) --> icmp eq (and X, ?), 0
define i1 @or_cmps_eq_zero_with_mask_commute1(i64 %x, i64 %y) {
; CHECK-LABEL: @or_cmps_eq_zero_with_mask_commute1(
; CHECK-NEXT: [[SOMEBITS:%.*]] = and i64 %x, %y
; CHECK-NEXT: [[SOMEBITS_ARE_ZERO:%.*]] = icmp eq i64 [[SOMEBITS]], 0
; CHECK-NEXT: ret i1 [[SOMEBITS_ARE_ZERO]]
;
%isnull = icmp eq i64 %x, 0
%somebits = and i64 %x, %y
%somebits_are_zero = icmp eq i64 %somebits, 0
%r = or i1 %somebits_are_zero, %isnull
ret i1 %r
}
; or (icmp eq X, 0), (icmp eq (and X, ?), 0) --> icmp eq (and X, ?), 0
define <2 x i1> @or_cmps_eq_zero_with_mask_commute2(<2 x i64> %x, <2 x i64> %y) {
; CHECK-LABEL: @or_cmps_eq_zero_with_mask_commute2(
; CHECK-NEXT: [[SOMEBITS:%.*]] = and <2 x i64> %x, %y
; CHECK-NEXT: [[SOMEBITS_ARE_ZERO:%.*]] = icmp eq <2 x i64> [[SOMEBITS]], zeroinitializer
; CHECK-NEXT: ret <2 x i1> [[SOMEBITS_ARE_ZERO]]
;
%isnull = icmp eq <2 x i64> %x, zeroinitializer
%somebits = and <2 x i64> %x, %y
%somebits_are_zero = icmp eq <2 x i64> %somebits, zeroinitializer
%r = or <2 x i1> %isnull, %somebits_are_zero
ret <2 x i1> %r
}
; or (icmp eq (and ?, X), 0), (icmp eq X, 0) --> icmp eq (and ?, X), 0
define i1 @or_cmps_eq_zero_with_mask_commute3(i4 %x, i4 %y) {
; CHECK-LABEL: @or_cmps_eq_zero_with_mask_commute3(
; CHECK-NEXT: [[SOMEBITS:%.*]] = and i4 %y, %x
; CHECK-NEXT: [[SOMEBITS_ARE_ZERO:%.*]] = icmp eq i4 [[SOMEBITS]], 0
; CHECK-NEXT: ret i1 [[SOMEBITS_ARE_ZERO]]
;
%isnull = icmp eq i4 %x, 0
%somebits = and i4 %y, %x
%somebits_are_zero = icmp eq i4 %somebits, 0
%r = or i1 %somebits_are_zero, %isnull
ret i1 %r
}
; or (icmp eq X, 0), (icmp eq (and ?, X), 0) --> icmp eq (and ?, X), 0
define <2 x i1> @or_cmps_eq_zero_with_mask_commute4(<2 x i4> %x, <2 x i4> %y) {
; CHECK-LABEL: @or_cmps_eq_zero_with_mask_commute4(
; CHECK-NEXT: [[SOMEBITS:%.*]] = and <2 x i4> %y, %x
; CHECK-NEXT: [[SOMEBITS_ARE_ZERO:%.*]] = icmp eq <2 x i4> [[SOMEBITS]], zeroinitializer
; CHECK-NEXT: ret <2 x i1> [[SOMEBITS_ARE_ZERO]]
;
%isnull = icmp eq <2 x i4> %x, zeroinitializer
%somebits = and <2 x i4> %y, %x
%somebits_are_zero = icmp eq <2 x i4> %somebits, zeroinitializer
%r = or <2 x i1> %isnull, %somebits_are_zero
ret <2 x i1> %r
}
; and (icmp ne (and X, ?), 0), (icmp ne X, 0) --> icmp ne (and X, ?), 0
define <3 x i1> @and_cmps_eq_zero_with_mask_commute1(<3 x i4> %x, <3 x i4> %y) {
; CHECK-LABEL: @and_cmps_eq_zero_with_mask_commute1(
; CHECK-NEXT: [[SOMEBITS:%.*]] = and <3 x i4> %x, %y
; CHECK-NEXT: [[SOMEBITS_ARE_NOT_ZERO:%.*]] = icmp ne <3 x i4> [[SOMEBITS]], zeroinitializer
; CHECK-NEXT: ret <3 x i1> [[SOMEBITS_ARE_NOT_ZERO]]
;
%isnotnull = icmp ne <3 x i4> %x, zeroinitializer
%somebits = and <3 x i4> %x, %y
%somebits_are_not_zero = icmp ne <3 x i4> %somebits, zeroinitializer
%r = and <3 x i1> %somebits_are_not_zero, %isnotnull
ret <3 x i1> %r
}
; and (icmp ne X, 0), (icmp ne (and X, ?), 0) --> icmp ne (and X, ?), 0
define i1 @and_cmps_eq_zero_with_mask_commute2(i4 %x, i4 %y) {
; CHECK-LABEL: @and_cmps_eq_zero_with_mask_commute2(
; CHECK-NEXT: [[SOMEBITS:%.*]] = and i4 %x, %y
; CHECK-NEXT: [[SOMEBITS_ARE_NOT_ZERO:%.*]] = icmp ne i4 [[SOMEBITS]], 0
; CHECK-NEXT: ret i1 [[SOMEBITS_ARE_NOT_ZERO]]
;
%isnotnull = icmp ne i4 %x, 0
%somebits = and i4 %x, %y
%somebits_are_not_zero = icmp ne i4 %somebits, 0
%r = and i1 %isnotnull, %somebits_are_not_zero
ret i1 %r
}
; and (icmp ne (and ?, X), 0), (icmp ne X, 0) --> icmp ne (and ?, X), 0
define <3 x i1> @and_cmps_eq_zero_with_mask_commute3(<3 x i64> %x, <3 x i64> %y) {
; CHECK-LABEL: @and_cmps_eq_zero_with_mask_commute3(
; CHECK-NEXT: [[SOMEBITS:%.*]] = and <3 x i64> %y, %x
; CHECK-NEXT: [[SOMEBITS_ARE_NOT_ZERO:%.*]] = icmp ne <3 x i64> [[SOMEBITS]], zeroinitializer
; CHECK-NEXT: ret <3 x i1> [[SOMEBITS_ARE_NOT_ZERO]]
;
%isnotnull = icmp ne <3 x i64> %x, zeroinitializer
%somebits = and <3 x i64> %y, %x
%somebits_are_not_zero = icmp ne <3 x i64> %somebits, zeroinitializer
%r = and <3 x i1> %somebits_are_not_zero, %isnotnull
ret <3 x i1> %r
}
; and (icmp ne X, 0), (icmp ne (and ?, X), 0) --> icmp ne (and ?, X), 0
define i1 @and_cmps_eq_zero_with_mask_commute4(i64 %x, i64 %y) {
; CHECK-LABEL: @and_cmps_eq_zero_with_mask_commute4(
; CHECK-NEXT: [[SOMEBITS:%.*]] = and i64 %y, %x
; CHECK-NEXT: [[SOMEBITS_ARE_NOT_ZERO:%.*]] = icmp ne i64 [[SOMEBITS]], 0
; CHECK-NEXT: ret i1 [[SOMEBITS_ARE_NOT_ZERO]]
;
%isnotnull = icmp ne i64 %x, 0
%somebits = and i64 %y, %x
%somebits_are_not_zero = icmp ne i64 %somebits, 0
%r = and i1 %isnotnull, %somebits_are_not_zero
ret i1 %r
}
; or (icmp eq (and (ptrtoint P), ?), 0), (icmp eq P, 0) --> icmp eq (and (ptrtoint P), ?), 0
define i1 @or_cmps_ptr_eq_zero_with_mask_commute1(i64* %p, i64 %y) {
; CHECK-LABEL: @or_cmps_ptr_eq_zero_with_mask_commute1(
; CHECK-NEXT: [[X:%.*]] = ptrtoint i64* %p to i64
; CHECK-NEXT: [[SOMEBITS:%.*]] = and i64 [[X]], %y
; CHECK-NEXT: [[SOMEBITS_ARE_ZERO:%.*]] = icmp eq i64 [[SOMEBITS]], 0
; CHECK-NEXT: ret i1 [[SOMEBITS_ARE_ZERO]]
;
%isnull = icmp eq i64* %p, null
%x = ptrtoint i64* %p to i64
%somebits = and i64 %x, %y
%somebits_are_zero = icmp eq i64 %somebits, 0
%r = or i1 %somebits_are_zero, %isnull
ret i1 %r
}
; or (icmp eq P, 0), (icmp eq (and (ptrtoint P), ?), 0) --> icmp eq (and (ptrtoint P), ?), 0
define <2 x i1> @or_cmps_ptr_eq_zero_with_mask_commute2(<2 x i64*> %p, <2 x i64> %y) {
; CHECK-LABEL: @or_cmps_ptr_eq_zero_with_mask_commute2(
; CHECK-NEXT: [[X:%.*]] = ptrtoint <2 x i64*> %p to <2 x i64>
; CHECK-NEXT: [[SOMEBITS:%.*]] = and <2 x i64> [[X]], %y
; CHECK-NEXT: [[SOMEBITS_ARE_ZERO:%.*]] = icmp eq <2 x i64> [[SOMEBITS]], zeroinitializer
; CHECK-NEXT: ret <2 x i1> [[SOMEBITS_ARE_ZERO]]
;
%isnull = icmp eq <2 x i64*> %p, zeroinitializer
%x = ptrtoint <2 x i64*> %p to <2 x i64>
%somebits = and <2 x i64> %x, %y
%somebits_are_zero = icmp eq <2 x i64> %somebits, zeroinitializer
%r = or <2 x i1> %isnull, %somebits_are_zero
ret <2 x i1> %r
}
; or (icmp eq (and ?, (ptrtoint P)), 0), (icmp eq P, 0) --> icmp eq (and ?, (ptrtoint P)), 0
define i1 @or_cmps_ptr_eq_zero_with_mask_commute3(i4* %p, i4 %y) {
; CHECK-LABEL: @or_cmps_ptr_eq_zero_with_mask_commute3(
; CHECK-NEXT: [[X:%.*]] = ptrtoint i4* %p to i4
; CHECK-NEXT: [[SOMEBITS:%.*]] = and i4 %y, [[X]]
; CHECK-NEXT: [[SOMEBITS_ARE_ZERO:%.*]] = icmp eq i4 [[SOMEBITS]], 0
; CHECK-NEXT: ret i1 [[SOMEBITS_ARE_ZERO]]
;
%isnull = icmp eq i4* %p, null
%x = ptrtoint i4* %p to i4
%somebits = and i4 %y, %x
%somebits_are_zero = icmp eq i4 %somebits, 0
%r = or i1 %somebits_are_zero, %isnull
ret i1 %r
}
; or (icmp eq P, 0), (icmp eq (and ?, (ptrtoint P)), 0) --> icmp eq (and ?, (ptrtoint P)), 0
define <2 x i1> @or_cmps_ptr_eq_zero_with_mask_commute4(<2 x i4*> %p, <2 x i4> %y) {
; CHECK-LABEL: @or_cmps_ptr_eq_zero_with_mask_commute4(
; CHECK-NEXT: [[X:%.*]] = ptrtoint <2 x i4*> %p to <2 x i4>
; CHECK-NEXT: [[SOMEBITS:%.*]] = and <2 x i4> %y, [[X]]
; CHECK-NEXT: [[SOMEBITS_ARE_ZERO:%.*]] = icmp eq <2 x i4> [[SOMEBITS]], zeroinitializer
; CHECK-NEXT: ret <2 x i1> [[SOMEBITS_ARE_ZERO]]
;
%isnull = icmp eq <2 x i4*> %p, zeroinitializer
%x = ptrtoint <2 x i4*> %p to <2 x i4>
%somebits = and <2 x i4> %y, %x
%somebits_are_zero = icmp eq <2 x i4> %somebits, zeroinitializer
%r = or <2 x i1> %isnull, %somebits_are_zero
ret <2 x i1> %r
}
; and (icmp ne (and (ptrtoint P), ?), 0), (icmp ne P, 0) --> icmp ne (and (ptrtoint P), ?), 0
define <3 x i1> @and_cmps_ptr_eq_zero_with_mask_commute1(<3 x i4*> %p, <3 x i4> %y) {
; CHECK-LABEL: @and_cmps_ptr_eq_zero_with_mask_commute1(
; CHECK-NEXT: [[X:%.*]] = ptrtoint <3 x i4*> %p to <3 x i4>
; CHECK-NEXT: [[SOMEBITS:%.*]] = and <3 x i4> [[X]], %y
; CHECK-NEXT: [[SOMEBITS_ARE_NOT_ZERO:%.*]] = icmp ne <3 x i4> [[SOMEBITS]], zeroinitializer
; CHECK-NEXT: ret <3 x i1> [[SOMEBITS_ARE_NOT_ZERO]]
;
%isnotnull = icmp ne <3 x i4*> %p, zeroinitializer
%x = ptrtoint <3 x i4*> %p to <3 x i4>
%somebits = and <3 x i4> %x, %y
%somebits_are_not_zero = icmp ne <3 x i4> %somebits, zeroinitializer
%r = and <3 x i1> %somebits_are_not_zero, %isnotnull
ret <3 x i1> %r
}
; and (icmp ne P, 0), (icmp ne (and (ptrtoint P), ?), 0) --> icmp ne (and (ptrtoint P), ?), 0
define i1 @and_cmps_ptr_eq_zero_with_mask_commute2(i4* %p, i4 %y) {
; CHECK-LABEL: @and_cmps_ptr_eq_zero_with_mask_commute2(
; CHECK-NEXT: [[X:%.*]] = ptrtoint i4* %p to i4
; CHECK-NEXT: [[SOMEBITS:%.*]] = and i4 [[X]], %y
; CHECK-NEXT: [[SOMEBITS_ARE_NOT_ZERO:%.*]] = icmp ne i4 [[SOMEBITS]], 0
; CHECK-NEXT: ret i1 [[SOMEBITS_ARE_NOT_ZERO]]
;
%isnotnull = icmp ne i4* %p, null
%x = ptrtoint i4* %p to i4
%somebits = and i4 %x, %y
%somebits_are_not_zero = icmp ne i4 %somebits, 0
%r = and i1 %isnotnull, %somebits_are_not_zero
ret i1 %r
}
; and (icmp ne (and ?, (ptrtoint P)), 0), (icmp ne P, 0) --> icmp ne (and ?, (ptrtoint P)), 0
define <3 x i1> @and_cmps_ptr_eq_zero_with_mask_commute3(<3 x i64*> %p, <3 x i64> %y) {
; CHECK-LABEL: @and_cmps_ptr_eq_zero_with_mask_commute3(
; CHECK-NEXT: [[X:%.*]] = ptrtoint <3 x i64*> %p to <3 x i64>
; CHECK-NEXT: [[SOMEBITS:%.*]] = and <3 x i64> %y, [[X]]
; CHECK-NEXT: [[SOMEBITS_ARE_NOT_ZERO:%.*]] = icmp ne <3 x i64> [[SOMEBITS]], zeroinitializer
; CHECK-NEXT: ret <3 x i1> [[SOMEBITS_ARE_NOT_ZERO]]
;
%isnotnull = icmp ne <3 x i64*> %p, zeroinitializer
%x = ptrtoint <3 x i64*> %p to <3 x i64>
%somebits = and <3 x i64> %y, %x
%somebits_are_not_zero = icmp ne <3 x i64> %somebits, zeroinitializer
%r = and <3 x i1> %somebits_are_not_zero, %isnotnull
ret <3 x i1> %r
}
; and (icmp ne P, 0), (icmp ne (and ?, (ptrtoint P)), 0) --> icmp ne (and ?, (ptrtoint P)), 0
define i1 @and_cmps_ptr_eq_zero_with_mask_commute4(i64* %p, i64 %y) {
; CHECK-LABEL: @and_cmps_ptr_eq_zero_with_mask_commute4(
; CHECK-NEXT: [[X:%.*]] = ptrtoint i64* %p to i64
; CHECK-NEXT: [[SOMEBITS:%.*]] = and i64 %y, [[X]]
; CHECK-NEXT: [[SOMEBITS_ARE_NOT_ZERO:%.*]] = icmp ne i64 [[SOMEBITS]], 0
; CHECK-NEXT: ret i1 [[SOMEBITS_ARE_NOT_ZERO]]
;
%isnotnull = icmp ne i64* %p, null
%x = ptrtoint i64* %p to i64
%somebits = and i64 %y, %x
%somebits_are_not_zero = icmp ne i64 %somebits, 0
%r = and i1 %isnotnull, %somebits_are_not_zero
ret i1 %r
}