1 // RUN: %clang_cc1 -triple x86_64-linux -O1 -disable-llvm-passes %s -emit-llvm -o - | FileCheck %s 2 // 3 // Check that we generate correct TBAA information for reference accesses. 4 5 struct S; 6 7 struct B { 8 S &s; 9 B(S &s); 10 S &get(); 11 }; 12 13 B::B(S &s) : s(s) { 14 // CHECK-LABEL: _ZN1BC2ER1S 15 // Check initialization of the reference parameter. 16 // CHECK: store %struct.S* {{.*}}, %struct.S** {{.*}}, !tbaa [[TAG_pointer:!.*]] 17 18 // Check loading of the reference parameter. 19 // CHECK: load %struct.S*, %struct.S** {{.*}}, !tbaa [[TAG_pointer]] 20 21 // Check initialization of the reference member. 22 // CHECK: store %struct.S* {{.*}}, %struct.S** {{.*}}, !tbaa [[TAG_pointer]] 23 } 24 25 S &B::get() { 26 // CHECK-LABEL: _ZN1B3getEv 27 // Check that we access the reference as a structure member. 28 // CHECK: load %struct.S*, %struct.S** {{.*}}, !tbaa [[TAG_B_s:!.*]] 29 return s; 30 } 31 32 // CHECK-DAG: [[TAG_pointer]] = !{[[TYPE_pointer:!.*]], [[TYPE_pointer]], i64 0} 33 // CHECK-DAG: [[TAG_B_s]] = !{[[TYPE_B:!.*]], [[TYPE_pointer]], i64 0} 34 // 35 // CHECK-DAG: [[TYPE_B]] = !{!"_ZTS1B", [[TYPE_pointer]], i64 0} 36 // CHECK-DAG: [[TYPE_pointer]] = !{!"any pointer", [[TYPE_char:!.*]], i64 0} 37 // CHECK-DAG: [[TYPE_char]] = !{!"omnipotent char", {{!.*}}, i64 0} 38