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
| ; RUN: llc < %s -mtriple thumbv6m-eabi | FileCheck %s
define i32 @slt_poweroftwo(i32 %a) {
; CHECK-LABEL: slt_poweroftwo:
; CHECK: .long 4095
%b = icmp slt i32 %a, 4096
br i1 %b, label %true, label %false
true:
ret i32 1
false:
ret i32 2
}
define i32 @sle_poweroftwo(i32 %a) {
; CHECK-LABEL: sle_poweroftwo:
; CHECK: movs r1, #1
; CHECK: lsls r1, r1, #12
%b = icmp sle i32 %a, 4096
br i1 %b, label %true, label %false
true:
ret i32 1
false:
ret i32 2
}
define i32 @sge_poweroftwo(i32 %a) {
; CHECK-LABEL: sge_poweroftwo:
; CHECK: movs r1, #1
; CHECK: lsls r1, r1, #12
%b = icmp sge i32 %a, 4096
br i1 %b, label %true, label %false
true:
ret i32 1
false:
ret i32 2
}
define i32 @sgt_poweroftwo(i32 %a) {
; CHECK-LABEL: sgt_poweroftwo:
; CHECK: .long 4097
%b = icmp sgt i32 %a, 4096
br i1 %b, label %true, label %false
true:
ret i32 1
false:
ret i32 2
}
define i32 @slt_nearpoweroftwo(i32 %a) {
; CHECK-LABEL: slt_nearpoweroftwo:
; CHECK: movs r1, #1
; CHECK: lsls r1, r1, #12
%b = icmp slt i32 %a, 4097
br i1 %b, label %true, label %false
true:
ret i32 1
false:
ret i32 2
}
define i32 @sle_nearpoweroftwo(i32 %a) {
; CHECK-LABEL: sle_nearpoweroftwo:
; CHECK: .long 4095
%b = icmp sle i32 %a, 4095
br i1 %b, label %true, label %false
true:
ret i32 1
false:
ret i32 2
}
define i32 @sge_nearpoweroftwo(i32 %a) {
; CHECK-LABEL: sge_nearpoweroftwo:
; CHECK: .long 4097
%b = icmp sge i32 %a, 4097
br i1 %b, label %true, label %false
true:
ret i32 1
false:
ret i32 2
}
define i32 @sgt_nearpoweroftwo(i32 %a) {
; CHECK-LABEL: sgt_nearpoweroftwo:
; CHECK: movs r1, #1
; CHECK: lsls r1, r1, #12
%b = icmp sgt i32 %a, 4095
br i1 %b, label %true, label %false
true:
ret i32 1
false:
ret i32 2
}
|