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// RUN: clang-cc -verify -emit-llvm -o - %s | FileCheck %s
void t1() {
extern int& a;
int b = a;
}
void t2(int& a) {
int b = a;
}
int g;
int& gr = g;
int& grr = gr;
void t3() {
int b = gr;
}
// Test reference binding.
struct C { int a; };
void f(const bool&);
void f(const int&);
void f(const _Complex int&);
void f(const C&);
C aggregate_return();
bool& bool_reference_return();
int& int_reference_return();
_Complex int& complex_int_reference_return();
C& aggregate_reference_return();
void test_bool() {
bool a = true;
f(a);
f(true);
bool_reference_return() = true;
a = bool_reference_return();
}
void test_scalar() {
int a = 10;
f(a);
struct { int bitfield : 3; } s = { 3 };
f(s.bitfield);
f(10);
__attribute((vector_size(16))) typedef int vec4;
f((vec4){1,2,3,4}[0]);
int_reference_return() = 10;
a = int_reference_return();
}
void test_complex() {
_Complex int a = 10i;
f(a);
f(10i);
complex_int_reference_return() = 10i;
a = complex_int_reference_return();
}
void test_aggregate() {
C c;
f(c);
f(aggregate_return());
aggregate_reference_return().a = 10;
c = aggregate_reference_return();
}
int& reference_return() {
return g;
}
int reference_decl() {
int& a = g;
const int& b = 1;
return a+b;
}
struct A {
int& b();
};
void f(A* a) {
int b = a->b();
}
// PR5122
void *foo = 0;
void * const & kFoo = foo;
struct D : C { D(); ~D(); };
void h() {
// CHECK: call void @_ZN1DD1Ev
const C& c = D();
}
namespace T {
struct A {
A();
~A();
};
struct B {
B();
~B();
A f();
};
void f() {
// CHECK: call void @_ZN1T1BC1Ev
// CHECK: call void @_ZN1T1B1fEv
// CHECK: call void @_ZN1T1BD1Ev
const A& a = B().f();
// CHECK: call void @_ZN1T1fEv
f();
// CHECK: call void @_ZN1T1AD1Ev
}
}
// PR5227.
namespace PR5227 {
void f(int &a) {
(a = 10) = 20;
}
}
// PR5590
struct s0;
struct s1 { struct s0 &s0; };
void f0(s1 a) { s1 b = a; }
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