1 // RUN: %clang_cc1 %s -std=c++11 -emit-llvm -o - -triple=x86_64-linux-gnu | FileCheck %s
2 // RUN: %clang_cc1 %s -std=c++11 -emit-llvm -o - -triple=x86_64-linux-gnu -target-cpu core2 | FileCheck %s --check-prefix=CORE2
3 // Check the atomic code generation for cpu targets w/wo cx16 support.
4
5 struct alignas(8) AM8 {
6 int f1, f2;
7 };
8 AM8 m8;
load8()9 AM8 load8() {
10 AM8 am;
11 // CHECK-LABEL: @_Z5load8v
12 // CHECK: load atomic i64, {{.*}} monotonic
13 // CORE2-LABEL: @_Z5load8v
14 // CORE2: load atomic i64, {{.*}} monotonic
15 __atomic_load(&m8, &am, 0);
16 return am;
17 }
18
19 AM8 s8;
store8()20 void store8() {
21 // CHECK-LABEL: @_Z6store8v
22 // CHECK: store atomic i64 {{.*}} monotonic
23 // CORE2-LABEL: @_Z6store8v
24 // CORE2: store atomic i64 {{.*}} monotonic
25 __atomic_store(&m8, &s8, 0);
26 }
27
cmpxchg8()28 bool cmpxchg8() {
29 AM8 am;
30 // CHECK-LABEL: @_Z8cmpxchg8v
31 // CHECK: cmpxchg i64* {{.*}} monotonic
32 // CORE2-LABEL: @_Z8cmpxchg8v
33 // CORE2: cmpxchg i64* {{.*}} monotonic
34 return __atomic_compare_exchange(&m8, &s8, &am, 0, 0, 0);
35 }
36
37 struct alignas(16) AM16 {
38 long f1, f2;
39 };
40
41 AM16 m16;
load16()42 AM16 load16() {
43 AM16 am;
44 // CHECK-LABEL: @_Z6load16v
45 // CHECK: call void @__atomic_load
46 // CORE2-LABEL: @_Z6load16v
47 // CORE2: load atomic i128, {{.*}} monotonic
48 __atomic_load(&m16, &am, 0);
49 return am;
50 }
51
52 AM16 s16;
store16()53 void store16() {
54 // CHECK-LABEL: @_Z7store16v
55 // CHECK: call void @__atomic_store
56 // CORE2-LABEL: @_Z7store16v
57 // CORE2: store atomic i128 {{.*}} monotonic
58 __atomic_store(&m16, &s16, 0);
59 }
60
cmpxchg16()61 bool cmpxchg16() {
62 AM16 am;
63 // CHECK-LABEL: @_Z9cmpxchg16v
64 // CHECK: call zeroext i1 @__atomic_compare_exchange
65 // CORE2-LABEL: @_Z9cmpxchg16v
66 // CORE2: cmpxchg i128* {{.*}} monotonic
67 return __atomic_compare_exchange(&m16, &s16, &am, 0, 0, 0);
68 }
69
70