1 // RUN: %clang_cc1 %s -emit-llvm -O1 -o - -triple=i686-apple-darwin9 -std=c++11 | FileCheck %s 2 3 // CHECK-DAG: @_ZN7PR180978constant1aE = global {{.*}} { i16 1, i8 6, i8 undef }, align 4 4 // CHECK-DAG: @_ZN7PR180978constant1bE = global {{.*}} { i16 2, i8 6, i8 undef }, align 4 5 // CHECK-DAG: @_ZN7PR180978constant1cE = global {{.*}} { i16 3, i8 6, i8 undef }, align 4 6 // CHECK-DAG: @_ZN7PR180978constant1yE = global {{.*}} { {{.*}} { i16 4, i8 6, i8 undef }, i32 5 }, align 4 7 8 struct A { 9 _Atomic(int) i; 10 A(int j); 11 void v(int j); 12 }; 13 // Storing to atomic values should be atomic 14 // CHECK: store atomic i32 15 void A::v(int j) { i = j; } 16 // Initialising atomic values should not be atomic 17 // CHECK-NOT: store atomic 18 A::A(int j) : i(j) {} 19 20 struct B { 21 int i; 22 B(int x) : i(x) {} 23 }; 24 25 _Atomic(B) b; 26 27 // CHECK-LABEL: define void @_Z11atomic_initR1Ai 28 void atomic_init(A& a, int i) { 29 // CHECK-NOT: atomic 30 // CHECK: tail call void @_ZN1BC1Ei 31 __c11_atomic_init(&b, B(i)); 32 // CHECK-NEXT: ret void 33 } 34 35 // CHECK-LABEL: define void @_Z16atomic_init_boolPU7_Atomicbb 36 void atomic_init_bool(_Atomic(bool) *ab, bool b) { 37 // CHECK-NOT: atomic 38 // CHECK: {{zext i1.*to i8}} 39 // CHECK-NEXT: store i8 40 __c11_atomic_init(ab, b); 41 // CHECK-NEXT: ret void 42 } 43 44 struct AtomicBoolMember { 45 _Atomic(bool) ab; 46 AtomicBoolMember(bool b); 47 }; 48 49 // CHECK-LABEL: define void @_ZN16AtomicBoolMemberC2Eb 50 // CHECK: {{zext i1.*to i8}} 51 // CHECK-NEXT: store i8 52 // CHECK-NEXT: ret void 53 AtomicBoolMember::AtomicBoolMember(bool b) : ab(b) { } 54 55 namespace PR18097 { 56 namespace dynamic { 57 struct X { 58 X(int); 59 short n; 60 char c; 61 }; 62 63 // CHECK-LABEL: define {{.*}} @__cxx_global_var_init 64 // CHECK: call void @_ZN7PR180977dynamic1XC1Ei({{.*}}* @_ZN7PR180977dynamic1aE, i32 1) 65 _Atomic(X) a = X(1); 66 67 // CHECK-LABEL: define {{.*}} @__cxx_global_var_init 68 // CHECK: call void @_ZN7PR180977dynamic1XC1Ei({{.*}}* @_ZN7PR180977dynamic1bE, i32 2) 69 _Atomic(X) b(X(2)); 70 71 // CHECK-LABEL: define {{.*}} @__cxx_global_var_init 72 // CHECK: call void @_ZN7PR180977dynamic1XC1Ei({{.*}}* @_ZN7PR180977dynamic1cE, i32 3) 73 _Atomic(X) c{X(3)}; 74 75 struct Y { 76 _Atomic(X) a; 77 _Atomic(int) b; 78 }; 79 // CHECK-LABEL: define {{.*}} @__cxx_global_var_init 80 // CHECK: call void @_ZN7PR180977dynamic1XC1Ei({{.*}}* getelementptr inbounds ({{.*}}* @_ZN7PR180977dynamic1yE, i32 0, i32 0), i32 4) 81 // CHECK: store i32 5, i32* getelementptr inbounds ({{.*}}* @_ZN7PR180977dynamic1yE, i32 0, i32 1) 82 Y y = { X(4), 5 }; 83 } 84 85 // CHECKs at top of file. 86 namespace constant { 87 struct X { 88 constexpr X(int n) : n(n) {} 89 short n; 90 char c = 6; 91 }; 92 _Atomic(X) a = X(1); 93 _Atomic(X) b(X(2)); 94 _Atomic(X) c{X(3)}; 95 96 struct Y { 97 _Atomic(X) a; 98 _Atomic(int) b; 99 }; 100 Y y = { X(4), 5 }; 101 } 102 } 103