1 // RUN: %clang_cc1 -std=c++11 -S -emit-llvm -o - %s -triple x86_64-linux-gnu | FileCheck %s
2
3 struct A { int a, b; int f(); };
4
5 // CHECK: define {{.*}}@_Z3fn1i(
fn1(int x)6 int fn1(int x) {
7 // CHECK: %[[INITLIST:.*]] = alloca %struct.A
8 // CHECK: %[[A:.*]] = getelementptr inbounds %struct.A* %[[INITLIST]], i32 0, i32 0
9 // CHECK: store i32 %{{.*}}, i32* %[[A]], align 4
10 // CHECK: %[[B:.*]] = getelementptr inbounds %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
fB16 struct B { int &r; int &f() { return r; } };
17
18 // CHECK: define {{.*}}@_Z3fn2Ri(
fn2(int & v)19 int &fn2(int &v) {
20 // CHECK: %[[INITLIST2:.*]] = alloca %struct.B, align 8
21 // CHECK: %[[R:.*]] = getelementptr inbounds %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(
38 namespace 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