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
7 define void @test1(i32* %ptr, i32 %val1) {
11 ; ARM-NEXT: dmb {{ish$}}
12 ; THUMBONE-LABEL: test1
13 ; THUMBONE: __sync_lock_test_and_set_4
14 ; THUMBTWO-LABEL: test1
15 ; THUMBTWO: dmb {{ish$}}
17 ; THUMBTWO-NEXT: dmb {{ish$}}
18 store atomic i32 %val1, i32* %ptr seq_cst, align 4
22 define i32 @test2(i32* %ptr) {
25 ; ARM-NEXT: dmb {{ish$}}
26 ; THUMBONE-LABEL: test2
27 ; THUMBONE: __sync_val_compare_and_swap_4
28 ; THUMBTWO-LABEL: test2
30 ; THUMBTWO-NEXT: dmb {{ish$}}
31 %val = load atomic i32* %ptr seq_cst, align 4
35 define void @test3(i8* %ptr1, i8* %ptr2) {
44 ; THUMBTWO-LABEL: test3
52 ; THUMBONE-LABEL: test3
58 %val = load atomic i8* %ptr1 unordered, align 1
59 store atomic i8 %val, i8* %ptr2 unordered, align 1
63 define void @test4(i8* %ptr1, i8* %ptr2) {
64 ; THUMBONE-LABEL: test4
65 ; THUMBONE: ___sync_val_compare_and_swap_1
66 ; THUMBONE: ___sync_lock_test_and_set_1
67 %val = load atomic i8* %ptr1 seq_cst, align 1
68 store atomic i8 %val, i8* %ptr2 seq_cst, align 1
72 define i64 @test_old_load_64bit(i64* %p) {
73 ; ARMV4-LABEL: test_old_load_64bit
74 ; ARMV4: ___sync_val_compare_and_swap_8
75 %1 = load atomic i64* %p seq_cst, align 8
79 define void @test_old_store_64bit(i64* %p, i64 %v) {
80 ; ARMV4-LABEL: test_old_store_64bit
81 ; ARMV4: ___sync_lock_test_and_set_8
82 store atomic i64 %v, i64* %p seq_cst, align 8