1; RUN: llc < %s -mtriple=armv7-apple-ios -verify-machineinstrs | FileCheck %s -check-prefix=ARM
2; RUN: llc < %s -mtriple=armv7-apple-ios -O0 | FileCheck %s -check-prefix=ARM
3; RUN: llc < %s -mtriple=thumbv7-apple-ios -verify-machineinstrs | FileCheck %s -check-prefix=THUMBTWO
4; RUN: llc < %s -mtriple=thumbv6-apple-ios | FileCheck %s -check-prefix=THUMBONE
5; RUN  llc < %s -mtriple=armv4-apple-ios | FileCheck %s -check-prefix=ARMV4
6
7define void @test1(i32* %ptr, i32 %val1) {
8; ARM: test1
9; ARM: dmb {{ish$}}
10; ARM-NEXT: str
11; ARM-NEXT: dmb {{ish$}}
12; THUMBONE: test1
13; THUMBONE: __sync_lock_test_and_set_4
14; THUMBTWO: test1
15; THUMBTWO: dmb {{ish$}}
16; THUMBTWO-NEXT: str
17; THUMBTWO-NEXT: dmb {{ish$}}
18  store atomic i32 %val1, i32* %ptr seq_cst, align 4
19  ret void
20}
21
22define i32 @test2(i32* %ptr) {
23; ARM: test2
24; ARM: ldr
25; ARM-NEXT: dmb {{ish$}}
26; THUMBONE: test2
27; THUMBONE: __sync_val_compare_and_swap_4
28; THUMBTWO: test2
29; THUMBTWO: ldr
30; THUMBTWO-NEXT: dmb {{ish$}}
31  %val = load atomic i32* %ptr seq_cst, align 4
32  ret i32 %val
33}
34
35define void @test3(i8* %ptr1, i8* %ptr2) {
36; ARM: test3
37; ARM: ldrb
38; ARM: strb
39; THUMBTWO: test3
40; THUMBTWO: ldrb
41; THUMBTWO: strb
42; THUMBONE: test3
43; THUMBONE: ldrb
44; THUMBONE: strb
45  %val = load atomic i8* %ptr1 unordered, align 1
46  store atomic i8 %val, i8* %ptr2 unordered, align 1
47  ret void
48}
49
50define void @test4(i8* %ptr1, i8* %ptr2) {
51; THUMBONE: test4
52; THUMBONE: ___sync_val_compare_and_swap_1
53; THUMBONE: ___sync_lock_test_and_set_1
54  %val = load atomic i8* %ptr1 seq_cst, align 1
55  store atomic i8 %val, i8* %ptr2 seq_cst, align 1
56  ret void
57}
58
59define i64 @test_old_load_64bit(i64* %p) {
60; ARMV4: test_old_load_64bit
61; ARMV4: ___sync_val_compare_and_swap_8
62  %1 = load atomic i64* %p seq_cst, align 8
63  ret i64 %1
64}
65
66define void @test_old_store_64bit(i64* %p, i64 %v) {
67; ARMV4: test_old_store_64bit
68; ARMV4: ___sync_lock_test_and_set_8
69  store atomic i64 %v, i64* %p seq_cst, align 8
70  ret void
71}
72