1// RUN: %clang_cc1 %s -std=c++11 -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
2
3// For a reference to a complete type, output the dereferenceable attribute (in
4// any address space).
5
6typedef int a __attribute__((address_space(1)));
7
8a & foo(a &x, a & y) {
9  return x;
10}
11
12// CHECK: define dereferenceable(4) i32 addrspace(1)* @_Z3fooRU3AS1iS0_(i32 addrspace(1)* dereferenceable(4) %x, i32 addrspace(1)* dereferenceable(4) %y)
13
14// For a reference to an incomplete type in an alternate address space, output
15// neither dereferenceable nor nonnull.
16
17class bc;
18typedef bc b __attribute__((address_space(1)));
19
20b & bar(b &x, b & y) {
21  return x;
22}
23
24// CHECK: define %class.bc addrspace(1)* @_Z3barRU3AS12bcS1_(%class.bc addrspace(1)* %x, %class.bc addrspace(1)* %y)
25
26// For a reference to an incomplete type in addrspace(0), output nonnull.
27
28bc & bar2(bc &x, bc & y) {
29  return x;
30}
31
32// CHECK: define nonnull %class.bc* @_Z4bar2R2bcS0_(%class.bc* nonnull %x, %class.bc* nonnull %y)
33
34
35