global-dtor-no-atexit.cpp
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// RUN: %clang_cc1 -triple x86_64 %s -fno-use-cxa-atexit -emit-llvm -o - | FileCheck %s
// PR7097
// RUN: %clang_cc1 -triple x86_64 %s -fno-use-cxa-atexit -mconstructor-aliases -emit-llvm -o - | FileCheck %s
// CHECK: call void @_ZN1AC1Ev([[A:%.*]]* @a)
// CHECK-NEXT: call i32 @atexit(void ()* @__dtor_a)
// CHECK: define internal void @__dtor_a() [[NUW:#[0-9]+]]
// CHECK: call void @_ZN1AD1Ev([[A]]* @a)
// CHECK: call void @_ZN1AC1Ev([[A]]* @b)
// CHECK-NEXT: call i32 @atexit(void ()* @__dtor_b)
// CHECK: define internal void @__dtor_b() [[NUW]]
// CHECK: call void @_ZN1AD1Ev([[A]]* @b)
class A {
public:
A();
~A();
};
A a, b;
// PR9593
// CHECK-LABEL: define void @_Z4funcv()
// CHECK: call i32 @__cxa_guard_acquire(i64* @_ZGVZ4funcvE2a1)
// CHECK: call void @_ZN1AC1Ev([[A]]* @_ZZ4funcvE2a1)
// CHECK-NEXT: call i32 @atexit(void ()* @__dtor__ZZ4funcvE2a1)
// CHECK-NEXT: call void @__cxa_guard_release(i64* @_ZGVZ4funcvE2a1)
// CHECK: call i32 @__cxa_guard_acquire(i64* @_ZGVZ4funcvE2a2)
// CHECK: call void @_ZN1AC1Ev([[A]]* @_ZZ4funcvE2a2)
// CHECK-NEXT: call i32 @atexit(void ()* @__dtor__ZZ4funcvE2a2)
// CHECK-NEXT: call void @__cxa_guard_release(i64* @_ZGVZ4funcvE2a2)
// CHECK: define internal void @__dtor__ZZ4funcvE2a1() [[NUW]]
// CHECK: call void @_ZN1AD1Ev([[A]]* @_ZZ4funcvE2a1)
// CHECK: define internal void @__dtor__ZZ4funcvE2a2() [[NUW]]
// CHECK: call void @_ZN1AD1Ev([[A]]* @_ZZ4funcvE2a2)
void func() {
static A a1, a2;
}
// CHECK: attributes [[NUW]] = { noinline nounwind{{.*}} }