| // RUN: %clang_cc1 %s -std=c++11 -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s -check-prefixes=CHECK,NULL-INVALID |
| // 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 |
| |
| // For a reference to a complete type, output the dereferenceable attribute (in |
| // any address space). |
| |
| typedef int a __attribute__((address_space(1))); |
| |
| a & foo(a &x, a & y) { |
| return x; |
| } |
| |
| // 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) |
| |
| // For a reference to an incomplete type in an alternate address space, output |
| // neither dereferenceable nor nonnull. |
| |
| class bc; |
| typedef bc b __attribute__((address_space(1))); |
| |
| b & bar(b &x, b & y) { |
| return x; |
| } |
| |
| // CHECK: define{{.*}} align 1 %class.bc addrspace(1)* @_Z3barRU3AS12bcS1_(%class.bc addrspace(1)* align 1 %x, %class.bc addrspace(1)* align 1 %y) |
| |
| // For a reference to an incomplete type in addrspace(0), output nonnull. |
| |
| bc & bar2(bc &x, bc & y) { |
| return x; |
| } |
| |
| // NULL-INVALID: define{{.*}} nonnull align 1 %class.bc* @_Z4bar2R2bcS0_(%class.bc* nonnull align 1 %x, %class.bc* nonnull align 1 %y) |
| // NULL-VALID: define{{.*}} align 1 %class.bc* @_Z4bar2R2bcS0_(%class.bc* align 1 %x, %class.bc* align 1 %y) |
| |
| |
