1 // RUN: %clang_cc1 %s -std=c++11 -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s -check-prefixes=CHECK,NULL-INVALID
2 // RUN: %clang_cc1 %s -std=c++11 -triple=x86_64-apple-darwin10 -fno-delete-null-pointer-checks -emit-llvm -o - | FileCheck %s -check-prefixes=CHECK,NULL-VALID
3 
4 // For a reference to a complete type, output the dereferenceable attribute (in
5 // any address space).
6 
7 typedef int a __attribute__((address_space(1)));
8 
foo(a & x,a & y)9 a & foo(a &x, a & y) {
10   return x;
11 }
12 
13 // CHECK: define align 4 dereferenceable(4) i32 addrspace(1)* @_Z3fooRU3AS1iS0_(i32 addrspace(1)* align 4 dereferenceable(4) %x, i32 addrspace(1)* align 4 dereferenceable(4) %y)
14 
15 // For a reference to an incomplete type in an alternate address space, output
16 // neither dereferenceable nor nonnull.
17 
18 class bc;
19 typedef bc b __attribute__((address_space(1)));
20 
bar(b & x,b & y)21 b & bar(b &x, b & y) {
22   return x;
23 }
24 
25 // CHECK: define align 1 %class.bc addrspace(1)* @_Z3barRU3AS12bcS1_(%class.bc addrspace(1)* align 1 %x, %class.bc addrspace(1)* align 1 %y)
26 
27 // For a reference to an incomplete type in addrspace(0), output nonnull.
28 
bar2(bc & x,bc & y)29 bc & bar2(bc &x, bc & y) {
30   return x;
31 }
32 
33 // NULL-INVALID: define nonnull align 1 %class.bc* @_Z4bar2R2bcS0_(%class.bc* nonnull align 1 %x, %class.bc* nonnull align 1 %y)
34 // NULL-VALID: define align 1 %class.bc* @_Z4bar2R2bcS0_(%class.bc* align 1 %x, %class.bc* align 1 %y)
35 
36 
37