1; RUN: llc -march=arm < %s | FileCheck %s
2
3; 171 = 0x000000ab
4define i64 @f1(i64 %a) {
5; CHECK: f1
6; CHECK: subs r0, r0, #171
7; CHECK: sbc r1, r1, #0
8    %tmp = sub i64 %a, 171
9    ret i64 %tmp
10}
11
12; 66846720 = 0x03fc0000
13define i64 @f2(i64 %a) {
14; CHECK: f2
15; CHECK: subs r0, r0, #66846720
16; CHECK: sbc r1, r1, #0
17    %tmp = sub i64 %a, 66846720
18    ret i64 %tmp
19}
20
21; 734439407618 = 0x000000ab00000002
22define i64 @f3(i64 %a) {
23; CHECK: f3
24; CHECK: subs r0, r0, #2
25; CHECK: sbc r1, r1, #171
26   %tmp = sub i64 %a, 734439407618
27   ret i64 %tmp
28}
29
30define i32 @f4(i32 %x) {
31entry:
32; CHECK: f4
33; CHECK: rsbs
34  %sub = sub i32 1, %x
35  %cmp = icmp ugt i32 %sub, 0
36  %sel = select i1 %cmp, i32 1, i32 %sub
37  ret i32 %sel
38}
39