1 // RUN: %clang_cc1 %s -emit-llvm -O1 -o - -triple=i686-apple-darwin9 | FileCheck %s 2 struct A { 3 _Atomic(int) i; 4 A(int j); 5 void v(int j); 6 }; 7 // Storing to atomic values should be atomic 8 // CHECK: store atomic i32 9 void A::v(int j) { i = j; } 10 // Initialising atomic values should not be atomic 11 // CHECK-NOT: store atomic 12 A::A(int j) : i(j) {} 13 14 struct B { 15 int i; 16 B(int x) : i(x) {} 17 }; 18 19 _Atomic(B) b; 20 21 // CHECK-LABEL: define void @_Z11atomic_initR1Ai 22 void atomic_init(A& a, int i) { 23 // CHECK-NOT: atomic 24 // CHECK: tail call void @_ZN1BC1Ei 25 __c11_atomic_init(&b, B(i)); 26 // CHECK-NEXT: ret void 27 } 28 29 // CHECK-LABEL: define void @_Z16atomic_init_boolPU7_Atomicbb 30 void atomic_init_bool(_Atomic(bool) *ab, bool b) { 31 // CHECK-NOT: atomic 32 // CHECK: {{zext i1.*to i8}} 33 // CHECK-NEXT: store i8 34 __c11_atomic_init(ab, b); 35 // CHECK-NEXT: ret void 36 } 37 38 struct AtomicBoolMember { 39 _Atomic(bool) ab; 40 AtomicBoolMember(bool b); 41 }; 42 43 // CHECK-LABEL: define void @_ZN16AtomicBoolMemberC2Eb 44 // CHECK: {{zext i1.*to i8}} 45 // CHECK-NEXT: store i8 46 // CHECK-NEXT: ret void 47 AtomicBoolMember::AtomicBoolMember(bool b) : ab(b) { } 48 49
