1// RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -emit-llvm -o - -std=c++11 |FileCheck %s
2
3class x {
4public: int operator=(int);
5};
6void a() {
7  x a;
8  a = 1u;
9}
10
11void f(int i, int j) {
12  // CHECK: load i32
13  // CHECK: load i32
14  // CHECK: add nsw i32
15  // CHECK: store i32
16  // CHECK: store i32 17, i32
17  // CHECK: ret
18  (i += j) = 17;
19}
20
21// Taken from g++.old-deja/g++.jason/net.C
22namespace test1 {
23  template <class T> void fn (T t) { }
24  template <class T> struct A {
25    void (*p)(T);
26    A() { p = fn; }
27  };
28
29  A<int> a;
30}
31
32// Ensure that we use memcpy when we would have selected a trivial assignment
33// operator, even for a non-trivially-copyable type.
34struct A {
35  A &operator=(const A&);
36};
37struct B {
38  B(const B&);
39  B &operator=(const B&) = default;
40  int n;
41};
42struct C {
43  A a;
44  B b[16];
45};
46void b(C &a, C &b) {
47  // CHECK: define {{.*}} @_ZN1CaSERKS_(
48  // CHECK: call {{.*}} @_ZN1AaSERKS_(
49  // CHECK-NOT: call {{.*}} @_ZN1BaSERKS_(
50  // CHECK: call {{.*}} @{{.*}}memcpy
51  // CHECK-NOT: call {{.*}} @_ZN1BaSERKS_(
52  // CHECK: }
53  a = b;
54}
55