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; |
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; |
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 | |
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; |
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; |
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 | |
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 | |