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) ptr addrspace(1) @_Z3fooRU3AS1iS0_(ptr addrspace(1) noundef align 4 dereferenceable(4) %x, ptr addrspace(1) noundef 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 ptr addrspace(1) @_Z3barRU3AS12bcS1_(ptr addrspace(1) noundef align 1 %x, ptr addrspace(1) noundef 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 ptr @_Z4bar2R2bcS0_(ptr noundef nonnull align 1 %x, ptr noundef nonnull align 1 %y)
34 // NULL-VALID: define{{.*}} align 1 ptr @_Z4bar2R2bcS0_(ptr noundef align 1 %x, ptr noundef align 1 %y)
35
36
37