1 ; RUN: llc -mtriple=arm-eabi -mcpu=cortex-a8 %s -show-mc-encoding -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 ; RUN: llc -mtriple=thumbv6m %s -o - | FileCheck %s --check-prefix=CHECK-V6M
4 ; RUN: llc -mtriple=thumbv8m.base -show-mc-encoding %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V8M
5 ; RUN: llc -mtriple=thumbv8m.main -show-mc-encoding %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V8M
8 define i64 @f1(i64 %a) {
10 ; CHECK-LE: subs{{.*}} r0, #171
11 ; CHECK-LE: sbc r1, r1, #0
12 ; CHECK-BE: subs r1, r1, #171
13 ; CHECK-BE: sbc r0, r0, #0
14 %tmp = sub i64 %a, 171
18 ; 66846720 = 0x03fc0000
19 define i64 @f2(i64 %a) {
21 ; CHECK-LE: subs{{.*}} r0, r0, #66846720
22 ; CHECK-LE: sbc r1, r1, #0
23 ; CHECK-BE: subs r1, r1, #66846720
24 ; CHECK-BE: sbc r0, r0, #0
25 %tmp = sub i64 %a, 66846720
29 ; 734439407618 = 0x000000ab00000002
30 define i64 @f3(i64 %a) {
32 ; CHECK-LE: subs{{.*}} r0, #2
33 ; CHECK-LE: sbc r1, r1, #171
34 ; CHECK-BE: subs r1, r1, #2
35 ; CHECK-BE: sbc r0, r0, #171
36 %tmp = sub i64 %a, 734439407618
40 define i32 @f4(i32 %x) {
46 %cmp = icmp ugt i32 %sub, 0
47 %sel = select i1 %cmp, i32 1, i32 %sub
51 define i32 @f5(i32 %x) {
54 ; CHECK-LE: movw r1, #65535 @ encoding: [0xff,0x1f,0x0f,0xe3]
55 ; CHECK-V8M: movw r1, #65535 @ encoding: [0x4f,0xf6,0xff,0x71]
58 ; CHECK: sub{{.*}} r0, r0, r1
61 ; CHECK-V6M: ldr [[NEG:r[0-1]+]], [[CONST:.[A-Z0-9_]+]]
62 ; CHECK-V6M: add{{.*}} r0, [[NEG]]
63 ; CHECK-V6M: [[CONST]]
64 ; CHECK-V6M: .long 4294901761
65 %sub = add i32 %x, -65535
69 define i32 @f6(i32 %x) {
72 ; CHECK-LE: movw r1, #65535 @ encoding: [0xff,0x1f,0x0f,0xe3]
73 ; CHECK-V8M: movw r1, #65535 @ encoding: [0x4f,0xf6,0xff,0x71]
76 ; CHECK: add{{.*}} r0, r1
79 ; CHECK-V6M: ldr [[NEG:r[0-1]+]], [[CONST:.[A-Z0-9_]+]]
80 ; CHECK-V6M: add{{.*}} r0, [[NEG]]
81 ; CHECK-V6M: [[CONST]]
82 ; CHECK-V6M: .long 65535
83 %sub = sub i32 %x, -65535