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
|
; RUN: llc < %s -march=thumb -mattr=+thumb2 | FileCheck %s
; These tests would be improved by 'movs r0, #0' being rematerialized below the
; test as 'mov.w r0, #0'.
; 0x000000bb = 187
define i1 @f1(i32 %a) {
; CHECK: f1:
; CHECK: cmp {{.*}}, #187
%tmp = icmp ne i32 %a, 187
ret i1 %tmp
}
; 0x00aa00aa = 11141290
define i1 @f2(i32 %a) {
; CHECK: f2:
; CHECK: cmp.w {{.*}}, #11141290
%tmp = icmp eq i32 %a, 11141290
ret i1 %tmp
}
; 0xcc00cc00 = 3422604288
define i1 @f3(i32 %a) {
; CHECK: f3:
; CHECK: cmp.w {{.*}}, #-872363008
%tmp = icmp ne i32 %a, 3422604288
ret i1 %tmp
}
; 0xdddddddd = 3722304989
define i1 @f4(i32 %a) {
; CHECK: f4:
; CHECK: cmp.w {{.*}}, #-572662307
%tmp = icmp ne i32 %a, 3722304989
ret i1 %tmp
}
; 0x00110000 = 1114112
define i1 @f5(i32 %a) {
; CHECK: f5:
; CHECK: cmp.w {{.*}}, #1114112
%tmp = icmp eq i32 %a, 1114112
ret i1 %tmp
}
; Check that we don't do an invalid (a > b) --> !(a < b + 1) transform.
;
; CHECK: f6:
; CHECK-NOT: cmp.w {{.*}}, #-2147483648
; CHECK: bx lr
define i32 @f6(i32 %a) {
%tmp = icmp sgt i32 %a, 2147483647
br i1 %tmp, label %true, label %false
true:
ret i32 2
false:
ret i32 0
}
|
