ip-ranges-sext.ll
3.49 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
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -ipsccp -S %s -o -| FileCheck %s
define i64 @test1(i32 %x) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: [[C:%.*]] = icmp sgt i32 [[X:%.*]], 0
; CHECK-NEXT: br i1 [[C]], label [[TRUE:%.*]], label [[FALSE:%.*]]
; CHECK: true:
; CHECK-NEXT: [[EXT_1:%.*]] = sext i32 [[X]] to i64
; CHECK-NEXT: ret i64 [[EXT_1]]
; CHECK: false:
; CHECK-NEXT: [[EXT_2:%.*]] = sext i32 [[X]] to i64
; CHECK-NEXT: ret i64 [[EXT_2]]
;
%c = icmp sgt i32 %x, 0
br i1 %c, label %true, label %false
true:
%ext.1 = sext i32 %x to i64
ret i64 %ext.1
false:
%ext.2 = sext i32 %x to i64
ret i64 %ext.2
}
define i64 @test2(i32 %x) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: [[C:%.*]] = icmp sge i32 [[X:%.*]], 0
; CHECK-NEXT: br i1 [[C]], label [[TRUE:%.*]], label [[FALSE:%.*]]
; CHECK: true:
; CHECK-NEXT: [[EXT_1:%.*]] = sext i32 [[X]] to i64
; CHECK-NEXT: ret i64 [[EXT_1]]
; CHECK: false:
; CHECK-NEXT: [[EXT_2:%.*]] = sext i32 [[X]] to i64
; CHECK-NEXT: ret i64 [[EXT_2]]
;
%c = icmp sge i32 %x, 0
br i1 %c, label %true, label %false
true:
%ext.1 = sext i32 %x to i64
ret i64 %ext.1
false:
%ext.2 = sext i32 %x to i64
ret i64 %ext.2
}
define i64 @test3(i32 %x) {
; CHECK-LABEL: @test3(
; CHECK-NEXT: [[C:%.*]] = icmp sge i32 [[X:%.*]], -1
; CHECK-NEXT: br i1 [[C]], label [[TRUE:%.*]], label [[FALSE:%.*]]
; CHECK: true:
; CHECK-NEXT: [[EXT_1:%.*]] = sext i32 [[X]] to i64
; CHECK-NEXT: ret i64 [[EXT_1]]
; CHECK: false:
; CHECK-NEXT: [[EXT_2:%.*]] = sext i32 [[X]] to i64
; CHECK-NEXT: ret i64 [[EXT_2]]
;
%c = icmp sge i32 %x, -1
br i1 %c, label %true, label %false
true:
%ext.1 = sext i32 %x to i64
ret i64 %ext.1
false:
%ext.2 = sext i32 %x to i64
ret i64 %ext.2
}
define i64 @test4_sext_op_can_be_undef(i1 %c.1, i1 %c.2) {
; CHECK-LABEL: @test4_sext_op_can_be_undef(
; CHECK-NEXT: br i1 [[C_1:%.*]], label [[TRUE_1:%.*]], label [[FALSE:%.*]]
; CHECK: true.1:
; CHECK-NEXT: br i1 [[C_2:%.*]], label [[TRUE_2:%.*]], label [[EXIT:%.*]]
; CHECK: true.2:
; CHECK-NEXT: br label [[EXIT]]
; CHECK: false:
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: [[P:%.*]] = phi i32 [ 0, [[TRUE_1]] ], [ 1, [[TRUE_2]] ], [ undef, [[FALSE]] ]
; CHECK-NEXT: [[EXT:%.*]] = sext i32 [[P]] to i64
; CHECK-NEXT: ret i64 [[EXT]]
;
br i1 %c.1, label %true.1, label %false
true.1:
br i1 %c.2, label %true.2, label %exit
true.2:
br label %exit
false:
br label %exit
exit:
%p = phi i32 [ 0, %true.1 ], [ 1, %true.2], [ undef, %false ]
%ext = sext i32 %p to i64
ret i64 %ext
}
define i64 @test5(i32 %x) {
; CHECK-LABEL: @test5(
; CHECK-NEXT: [[P:%.*]] = and i32 [[X:%.*]], 15
; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[P]] to i64
; CHECK-NEXT: ret i64 [[TMP1]]
;
%p = and i32 %x, 15
%ext = sext i32 %p to i64
ret i64 %ext
}
; sext is constant folded before sext -> zext conversion.
define i64 @test6(i32 %x) {
; CHECK-LABEL: @test6(
; CHECK-NEXT: ret i64 10
;
%ext = sext i32 10 to i64
ret i64 %ext
}
; sext that can be converted to zext feeds another sext.
define i64 @test7(i16 %x) {
; CHECK-LABEL: @test7(
; CHECK-NEXT: [[P:%.*]] = and i16 [[X:%.*]], 15
; CHECK-NEXT: [[TMP1:%.*]] = zext i16 [[P]] to i32
; CHECK-NEXT: [[EXT_2:%.*]] = sext i32 [[TMP1]] to i64
; CHECK-NEXT: ret i64 [[EXT_2]]
;
%p = and i16 %x, 15
%ext.1 = sext i16 %p to i32
%ext.2 = sext i32 %ext.1 to i64
ret i64 %ext.2
}