source: icGREP/icgrep-devel/llvm-3.8.0.src/test/CodeGen/ARM/sub.ll @ 5027

Last change on this file since 5027 was 5027, checked in by cameron, 3 years ago

Upgrade to llvm 3.8

File size: 1.3 KB
Line 
1; RUN: llc -mtriple=arm-eabi -mcpu=cortex-a8 %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-LE
2; RUN: llc -mtriple=armeb-eabi -mcpu=cortex-a8 %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-BE
3
4; 171 = 0x000000ab
5define i64 @f1(i64 %a) {
6; CHECK: f1
7; CHECK-LE: subs r0, r0, #171
8; CHECK-LE: sbc r1, r1, #0
9; CHECK-BE: subs r1, r1, #171
10; CHECK-BE: sbc r0, r0, #0
11    %tmp = sub i64 %a, 171
12    ret i64 %tmp
13}
14
15; 66846720 = 0x03fc0000
16define i64 @f2(i64 %a) {
17; CHECK: f2
18; CHECK-LE: subs r0, r0, #66846720
19; CHECK-LE: sbc r1, r1, #0
20; CHECK-BE: subs r1, r1, #66846720
21; CHECK-BE: sbc r0, r0, #0
22    %tmp = sub i64 %a, 66846720
23    ret i64 %tmp
24}
25
26; 734439407618 = 0x000000ab00000002
27define i64 @f3(i64 %a) {
28; CHECK: f3
29; CHECK-LE: subs r0, r0, #2
30; CHECK-LE: sbc r1, r1, #171
31; CHECK-BE: subs r1, r1, #2
32; CHECK-BE: sbc r0, r0, #171
33   %tmp = sub i64 %a, 734439407618
34   ret i64 %tmp
35}
36
37define i32 @f4(i32 %x) {
38entry:
39; CHECK: f4
40; CHECK: rsbs
41  %sub = sub i32 1, %x
42  %cmp = icmp ugt i32 %sub, 0
43  %sel = select i1 %cmp, i32 1, i32 %sub
44  ret i32 %sel
45}
46
47; rdar://11726136
48define i32 @f5(i32 %x) {
49entry:
50; CHECK: f5
51; CHECK: movw r1, #65535
52; CHECK-NOT: movt
53; CHECK-NOT: add
54; CHECK: sub r0, r0, r1
55  %sub = add i32 %x, -65535
56  ret i32 %sub
57}
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