48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
// RUN: %clang_cc1 %s -emit-llvm -O1 -o - -triple=i686-apple-darwin9 | FileCheck %s
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struct A {
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_Atomic(int) i;
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A(int j);
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void v(int j);
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};
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// Storing to atomic values should be atomic
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// CHECK: store atomic i32
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void A::v(int j) { i = j; }
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// Initialising atomic values should not be atomic
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// CHECK-NOT: store atomic
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A::A(int j) : i(j) {}
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struct B {
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int i;
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B(int x) : i(x) {}
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};
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_Atomic(B) b;
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// CHECK-LABEL: define void @_Z11atomic_initR1Ai
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void atomic_init(A& a, int i) {
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// CHECK-NOT: atomic
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// CHECK: tail call void @_ZN1BC1Ei
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__c11_atomic_init(&b, B(i));
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// CHECK-NEXT: ret void
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}
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// CHECK-LABEL: define void @_Z16atomic_init_boolPU7_Atomicbb
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void atomic_init_bool(_Atomic(bool) *ab, bool b) {
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// CHECK-NOT: atomic
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// CHECK: {{zext i1.*to i8}}
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// CHECK-NEXT: store i8
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__c11_atomic_init(ab, b);
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// CHECK-NEXT: ret void
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}
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struct AtomicBoolMember {
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_Atomic(bool) ab;
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AtomicBoolMember(bool b);
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};
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// CHECK-LABEL: define void @_ZN16AtomicBoolMemberC2Eb
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// CHECK: {{zext i1.*to i8}}
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// CHECK-NEXT: store i8
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// CHECK-NEXT: ret void
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AtomicBoolMember::AtomicBoolMember(bool b) : ab(b) { }
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