1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
// RUN: %clang_cc1 -no-opaque-pointers %s -triple x86_64-apple-darwin10 -emit-llvm -o - -std=c++11 |FileCheck %s
class x {
public: int operator=(int);
};
void a() {
x a;
a = 1u;
}
void f(int i, int j) {
// CHECK: load i32
// CHECK: load i32
// CHECK: add nsw i32
// CHECK: store i32
// CHECK: store i32 17, i32
// CHECK: ret
(i += j) = 17;
}
// Taken from g++.old-deja/g++.jason/net.C
namespace test1 {
template <class T> void fn (T t) { }
template <class T> struct A {
void (*p)(T);
A() { p = fn; }
};
A<int> a;
}
// Ensure that we use memcpy when we would have selected a trivial assignment
// operator, even for a non-trivially-copyable type.
struct A {
A &operator=(const A&);
};
struct B {
B(const B&);
B &operator=(const B&) = default;
int n;
};
struct C {
A a;
B b[16];
};
void b(C &a, C &b) {
// CHECK: define {{.*}} @_ZN1CaSERKS_(
// CHECK: call {{.*}} @_ZN1AaSERKS_(
// CHECK-NOT: call {{.*}} @_ZN1BaSERKS_(
// CHECK: call {{.*}} @{{.*}}memcpy
// CHECK-NOT: call {{.*}} @_ZN1BaSERKS_(
// CHECK: }
a = b;
}
|
