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
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -nary-reassociate -S | FileCheck %s
; RUN: opt < %s -passes='nary-reassociate' -S | FileCheck %s
declare i32 @llvm.umin.i32(i32 %a, i32 %b)
; m1 = umin(a,b) ; has side uses
; m2 = umin(umin((b,c), a) -> m2 = umin(m1, c)
define i32 @umin_test1(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @umin_test1(
; CHECK-NEXT: [[C1:%.*]] = icmp ult i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[UMIN1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
; CHECK-NEXT: [[UMIN3_NARY:%.*]] = call i32 @llvm.umin.i32(i32 [[UMIN1]], i32 [[C:%.*]])
; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMIN1]], [[UMIN3_NARY]]
; CHECK-NEXT: ret i32 [[RES]]
;
%c1 = icmp ult i32 %a, %b
%umin1 = select i1 %c1, i32 %a, i32 %b
%c2 = icmp ult i32 %b, %c
%umin2 = select i1 %c2, i32 %b, i32 %c
%c3 = icmp ult i32 %umin2, %a
%umin3 = select i1 %c3, i32 %umin2, i32 %a
%res = add i32 %umin1, %umin3
ret i32 %res
}
; m1 = umin(a,b) ; has side uses
; m2 = umin(b, (umin(a, c))) -> m2 = umin(m1, c)
define i32 @umin_test2(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @umin_test2(
; CHECK-NEXT: [[C1:%.*]] = icmp ult i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[UMIN1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
; CHECK-NEXT: [[UMIN3_NARY:%.*]] = call i32 @llvm.umin.i32(i32 [[UMIN1]], i32 [[C:%.*]])
; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMIN1]], [[UMIN3_NARY]]
; CHECK-NEXT: ret i32 [[RES]]
;
%c1 = icmp ult i32 %a, %b
%umin1 = select i1 %c1, i32 %a, i32 %b
%c2 = icmp ult i32 %a, %c
%umin2 = select i1 %c2, i32 %a, i32 %c
%c3 = icmp ult i32 %b, %umin2
%umin3 = select i1 %c3, i32 %b, i32 %umin2
%res = add i32 %umin1, %umin3
ret i32 %res
}
; Same test as umin_test1 but uses @llvm.umin intrinsic
define i32 @umin_test3(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @umin_test3(
; CHECK-NEXT: [[UMIN1:%.*]] = call i32 @llvm.umin.i32(i32 [[A:%.*]], i32 [[B:%.*]])
; CHECK-NEXT: [[UMIN3_NARY:%.*]] = call i32 @llvm.umin.i32(i32 [[UMIN1]], i32 [[C:%.*]])
; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMIN1]], [[UMIN3_NARY]]
; CHECK-NEXT: ret i32 [[RES]]
;
%umin1 = call i32 @llvm.umin.i32(i32 %a, i32 %b)
%umin2 = call i32 @llvm.umin.i32(i32 %b, i32 %c)
%umin3 = call i32 @llvm.umin.i32(i32 %umin2, i32 %a)
%res = add i32 %umin1, %umin3
ret i32 %res
}
; m1 = umin(a,b) ; has side uses
; m2 = umin(umin_or_eq((b,c), a) -> m2 = umin(m1, c)
define i32 @umin_test4(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @umin_test4(
; CHECK-NEXT: [[C1:%.*]] = icmp ult i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[UMIN1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
; CHECK-NEXT: [[UMIN3_NARY:%.*]] = call i32 @llvm.umin.i32(i32 [[UMIN1]], i32 [[C:%.*]])
; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMIN1]], [[UMIN3_NARY]]
; CHECK-NEXT: ret i32 [[RES]]
;
%c1 = icmp ult i32 %a, %b
%umin1 = select i1 %c1, i32 %a, i32 %b
%c2 = icmp ule i32 %b, %c
%umin_or_eq2 = select i1 %c2, i32 %b, i32 %c
%c3 = icmp ult i32 %umin_or_eq2, %a
%umin3 = select i1 %c3, i32 %umin_or_eq2, i32 %a
%res = add i32 %umin1, %umin3
ret i32 %res
}
; m1 = umin_or_eq(a,b) ; has side uses
; m2 = umin_or_eq(umin((b,c), a) -> m2 = umin(m1, c)
define i32 @umin_test5(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @umin_test5(
; CHECK-NEXT: [[C1:%.*]] = icmp ule i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[UMIN_OR_EQ1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
; CHECK-NEXT: [[UMIN_OR_EQ3_NARY:%.*]] = call i32 @llvm.umin.i32(i32 [[UMIN_OR_EQ1]], i32 [[C:%.*]])
; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMIN_OR_EQ1]], [[UMIN_OR_EQ3_NARY]]
; CHECK-NEXT: ret i32 [[RES]]
;
%c1 = icmp ule i32 %a, %b
%umin_or_eq1 = select i1 %c1, i32 %a, i32 %b
%c2 = icmp ult i32 %b, %c
%umin2 = select i1 %c2, i32 %b, i32 %c
%c3 = icmp ule i32 %umin2, %a
%umin_or_eq3 = select i1 %c3, i32 %umin2, i32 %a
%res = add i32 %umin_or_eq1, %umin_or_eq3
ret i32 %res
}
; m1 = umin(a,b) ; has side uses
; m2 = umin(smin((b,c), a) ; check that signed and unsigned mins are not mixed
define i32 @umin_test6(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @umin_test6(
; CHECK-NEXT: [[C1:%.*]] = icmp ult i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[UMIN1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
; CHECK-NEXT: [[C2:%.*]] = icmp slt i32 [[B]], [[C:%.*]]
; CHECK-NEXT: [[SMIN2:%.*]] = select i1 [[C2]], i32 [[B]], i32 [[C]]
; CHECK-NEXT: [[C3:%.*]] = icmp ult i32 [[SMIN2]], [[A]]
; CHECK-NEXT: [[UMIN3:%.*]] = select i1 [[C3]], i32 [[SMIN2]], i32 [[A]]
; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMIN1]], [[UMIN3]]
; CHECK-NEXT: ret i32 [[RES]]
;
%c1 = icmp ult i32 %a, %b
%umin1 = select i1 %c1, i32 %a, i32 %b
%c2 = icmp slt i32 %b, %c
%smin2 = select i1 %c2, i32 %b, i32 %c
%c3 = icmp ult i32 %smin2, %a
%umin3 = select i1 %c3, i32 %smin2, i32 %a
%res = add i32 %umin1, %umin3
ret i32 %res
}
; m1 = umin(a,b) ; has side uses
; m2 = umin(umax((b,c), a) ; check that min and max are not mixed
define i32 @umin_test7(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @umin_test7(
; CHECK-NEXT: [[C1:%.*]] = icmp ult i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[UMIN1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
; CHECK-NEXT: [[C2:%.*]] = icmp ugt i32 [[B]], [[C:%.*]]
; CHECK-NEXT: [[UMAX2:%.*]] = select i1 [[C2]], i32 [[B]], i32 [[C]]
; CHECK-NEXT: [[C3:%.*]] = icmp ult i32 [[UMAX2]], [[A]]
; CHECK-NEXT: [[UMIN3:%.*]] = select i1 [[C3]], i32 [[UMAX2]], i32 [[A]]
; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMIN1]], [[UMIN3]]
; CHECK-NEXT: ret i32 [[RES]]
;
%c1 = icmp ult i32 %a, %b
%umin1 = select i1 %c1, i32 %a, i32 %b
%c2 = icmp ugt i32 %b, %c
%umax2 = select i1 %c2, i32 %b, i32 %c
%c3 = icmp ult i32 %umax2, %a
%umin3 = select i1 %c3, i32 %umax2, i32 %a
%res = add i32 %umin1, %umin3
ret i32 %res
}
; Pointer types are not supported yet
define i32* @umin_test8(i32* %a, i32* %b, i32* %c) {
; CHECK-LABEL: @umin_test8(
; CHECK-NEXT: [[C1:%.*]] = icmp ult i32* [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[UMIN1:%.*]] = select i1 [[C1]], i32* [[A]], i32* [[B]]
; CHECK-NEXT: [[C2:%.*]] = icmp ult i32* [[B]], [[C:%.*]]
; CHECK-NEXT: [[UMIN2:%.*]] = select i1 [[C2]], i32* [[B]], i32* [[C]]
; CHECK-NEXT: [[C3:%.*]] = icmp ult i32* [[UMIN2]], [[A]]
; CHECK-NEXT: [[UMIN3:%.*]] = select i1 [[C3]], i32* [[UMIN2]], i32* [[A]]
; CHECK-NEXT: [[C4:%.*]] = icmp ult i32* [[UMIN1]], [[UMIN3]]
; CHECK-NEXT: [[RES:%.*]] = select i1 [[C4]], i32* [[UMIN1]], i32* [[UMIN3]]
; CHECK-NEXT: ret i32* [[RES]]
;
%c1 = icmp ult i32* %a, %b
%umin1 = select i1 %c1, i32* %a, i32* %b
%c2 = icmp ult i32* %b, %c
%umin2 = select i1 %c2, i32* %b, i32* %c
%c3 = icmp ult i32* %umin2, %a
%umin3 = select i1 %c3, i32* %umin2, i32* %a
%c4 = icmp ult i32* %umin1, %umin3
%res = select i1 %c4, i32* %umin1, i32* %umin3
ret i32* %res
}
|
GitWeb