1// RUN: %clang_cc1 -std=c++11 -S -emit-llvm -o - %s -triple x86_64-linux-gnu | FileCheck %s
2
3struct A { int a, b; int f(); };
4
5// CHECK: define {{.*}}@_Z3fn1i(
6int fn1(int x) {
7  // CHECK: %[[INITLIST:.*]] = alloca %struct.A
8  // CHECK: %[[A:.*]] = getelementptr inbounds %struct.A, %struct.A* %[[INITLIST]], i32 0, i32 0
9  // CHECK: store i32 %{{.*}}, i32* %[[A]], align 4
10  // CHECK: %[[B:.*]] = getelementptr inbounds %struct.A, %struct.A* %[[INITLIST]], i32 0, i32 1
11  // CHECK: store i32 5, i32* %[[B]], align 4
12  // CHECK: call i32 @_ZN1A1fEv(%struct.A* %[[INITLIST]])
13  return A{x, 5}.f();
14}
15
16struct B { int &r; int &f() { return r; } };
17
18// CHECK: define {{.*}}@_Z3fn2Ri(
19int &fn2(int &v) {
20  // CHECK: %[[INITLIST2:.*]] = alloca %struct.B, align 8
21  // CHECK: %[[R:.*]] = getelementptr inbounds %struct.B, %struct.B* %[[INITLIST2:.*]], i32 0, i32 0
22  // CHECK: store i32* %{{.*}}, i32** %[[R]], align 8
23  // CHECK: call dereferenceable({{[0-9]+}}) i32* @_ZN1B1fEv(%struct.B* %[[INITLIST2:.*]])
24  return B{v}.f();
25}
26
27// CHECK: define {{.*}}@__cxx_global_var_init(
28//
29// CHECK: call {{.*}}@_ZN14NonTrivialInit1AC1Ev(
30// CHECK: getelementptr inbounds {{.*}}, i64 1
31// CHECK: br i1
32//
33// CHECK: getelementptr inbounds {{.*}}, i64 1
34// CHECK: icmp eq {{.*}}, i64 30
35// CHECK: br i1
36//
37// CHECK: call i32 @__cxa_atexit(
38namespace NonTrivialInit {
39  struct A { A(); A(const A&) = delete; ~A(); };
40  struct B { A a[20]; };
41  // NB, this must be large enough to be worth memsetting for this test to be
42  // meaningful.
43  B b[30] = {};
44}
45