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