forked from OSchip/llvm-project
142 lines
2.0 KiB
C++
142 lines
2.0 KiB
C++
// RUN: %clang_cc1 -verify -emit-llvm -o - %s | FileCheck %s
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void t1() {
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extern int& a;
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int b = a;
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}
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void t2(int& a) {
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int b = a;
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}
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int g;
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int& gr = g;
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int& grr = gr;
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void t3() {
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int b = gr;
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}
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// Test reference binding.
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struct C { int a; };
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void f(const bool&);
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void f(const int&);
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void f(const _Complex int&);
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void f(const C&);
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C aggregate_return();
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bool& bool_reference_return();
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int& int_reference_return();
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_Complex int& complex_int_reference_return();
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C& aggregate_reference_return();
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void test_bool() {
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bool a = true;
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f(a);
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f(true);
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bool_reference_return() = true;
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a = bool_reference_return();
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}
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void test_scalar() {
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int a = 10;
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f(a);
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struct { int bitfield : 3; } s = { 3 };
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f(s.bitfield);
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f(10);
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__attribute((vector_size(16))) typedef int vec4;
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f((vec4){1,2,3,4}[0]);
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int_reference_return() = 10;
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a = int_reference_return();
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}
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void test_complex() {
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_Complex int a = 10i;
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f(a);
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f(10i);
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complex_int_reference_return() = 10i;
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a = complex_int_reference_return();
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}
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void test_aggregate() {
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C c;
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f(c);
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f(aggregate_return());
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aggregate_reference_return().a = 10;
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c = aggregate_reference_return();
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}
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int& reference_return() {
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return g;
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}
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int reference_decl() {
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int& a = g;
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const int& b = 1;
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return a+b;
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}
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struct A {
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int& b();
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};
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void f(A* a) {
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int b = a->b();
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}
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// PR5122
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void *foo = 0;
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void * const & kFoo = foo;
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struct D : C { D(); ~D(); };
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void h() {
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// CHECK: call void @_ZN1DD1Ev
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const C& c = D();
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}
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namespace T {
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struct A {
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A();
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~A();
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};
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struct B {
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B();
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~B();
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A f();
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};
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void f() {
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// CHECK: call void @_ZN1T1BC1Ev
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// CHECK: call void @_ZN1T1B1fEv
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// CHECK: call void @_ZN1T1BD1Ev
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const A& a = B().f();
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// CHECK: call void @_ZN1T1fEv
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f();
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// CHECK: call void @_ZN1T1AD1Ev
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}
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}
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// PR5227.
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namespace PR5227 {
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void f(int &a) {
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(a = 10) = 20;
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}
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}
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// PR5590
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struct s0;
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struct s1 { struct s0 &s0; };
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void f0(s1 a) { s1 b = a; }
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