1// Check that initialization of the only one memcpy-able struct member will not
2// be performed twice after successful non-trivial initializtion of the second
3// member.
4//
5// RUN: %clang_cc1 -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -O0 -fno-elide-constructors -emit-llvm %s -o - | FileCheck %s
6
7int globId = 0;
8
9struct ImplicitCopy {
10  int id;
11
12  ImplicitCopy() { id = 10; }
13  ~ImplicitCopy() { id = 20; }
14};
15
16struct ExplicitCopy {
17  int id;
18
19  ExplicitCopy() { id = 15; }
20  ExplicitCopy(const ExplicitCopy &x) { id = 25; }
21  ~ExplicitCopy() { id = 35; }
22};
23
24struct Container {
25  ImplicitCopy o1; // memcpy-able member.
26  ExplicitCopy o2; // non-trivial initialization.
27
28  Container() { globId = 1000; }
29  ~Container() { globId = 2000; }
30};
31
32int main() {
33  try {
34    Container c1;
35    // CHECK-DAG: call void @llvm.memcpy
36    // CHECK-DAG: declare void @llvm.memcpy
37    // CHECK-NOT: @llvm.memcpy
38    Container c2(c1);
39
40    return 2;
41  }
42  catch (...) {
43    return 1;
44  }
45  return 0;
46}
47