1 // RUN: %clang_cc1 -triple x86_64-linux -O1 -disable-llvm-passes -no-pointer-tbaa %s -emit-llvm -o - | FileCheck %s -check-prefixes=CHECK,OLD-PATH 2 // RUN: %clang_cc1 -triple x86_64-linux -O1 -disable-llvm-passes %s -emit-llvm -o - | FileCheck %s -check-prefixes=CHECK,OLD-PATH-POINTER 3 // RUN: %clang_cc1 -triple x86_64-linux -O1 -disable-llvm-passes %s -no-pointer-tbaa -emit-llvm -new-struct-path-tbaa -o - | FileCheck %s -check-prefixes=CHECK,NEW-PATH 4 // RUN: %clang_cc1 -triple x86_64-linux -O1 -disable-llvm-passes %s -emit-llvm -new-struct-path-tbaa -o - | FileCheck %s -check-prefixes=CHECK,NEW-PATH-POINTER 5 // 6 // Check that we generate correct TBAA information for reference accesses. 7 8 struct S; 9 10 struct B { 11 S &s; 12 B(S &s); 13 S &get(); 14 }; 15 16 B::B(S &s) : s(s) { 17 // CHECK-LABEL: _ZN1BC2ER1S 18 // Check initialization of the reference parameter. 19 // CHECK: store ptr {{.*}}, ptr %s.addr, align 8, !tbaa [[TAG_S_PTR:!.*]] 20 21 // Check loading of the reference parameter. 22 // CHECK: load ptr, ptr {{.*}}, !tbaa [[TAG_S_PTR:!.*]] 23 24 // Check initialization of the reference member. 25 // CHECK: store ptr {{.*}}, ptr {{.*}}, !tbaa [[TAG_S_PTR]] 26 } 27 28 S &B::get() { 29 // CHECK-LABEL: _ZN1B3getEv 30 // Check that we access the reference as a structure member. 31 // CHECK: load ptr, ptr {{.*}}, !tbaa [[TAG_B_s:!.*]] 32 return s; 33 } 34 35 // OLD-PATH-DAG: [[TAG_S_PTR]] = !{[[TYPE_pointer:!.*]], [[TYPE_pointer]], i64 0} 36 // OLD-PATH-DAG: [[TAG_B_s]] = !{[[TYPE_B:!.*]], [[TYPE_pointer]], i64 0} 37 // 38 // OLD-PATH-DAG: [[TYPE_B]] = !{!"_ZTS1B", [[TYPE_pointer]], i64 0} 39 // OLD-PATH-DAG: [[TYPE_pointer]] = !{!"any pointer", [[TYPE_char:!.*]], i64 0} 40 // OLD-PATH-DAG: [[TYPE_char]] = !{!"omnipotent char", {{!.*}}, i64 0} 41 42 // OLD-PATH-POINTER-DAG: [[TAG_S_PTR]] = !{[[TYPE_S_PTR:!.*]], [[TYPE_S_PTR]], i64 0} 43 // OLD-PATH-POINTER-DAG: [[TAG_B_s]] = !{[[TYPE_B:!.*]], [[TYPE_S_PTR:!.*]], i64 0} 44 // 45 // OLD-PATH-POINTER-DAG: [[TYPE_B]] = !{!"_ZTS1B", [[TYPE_S_PTR:!.*]], i64 0} 46 // OLD-PATH-POINTER-DAG: [[TYPE_pointer:!.*]] = !{!"any pointer", [[TYPE_char:!.*]], i64 0} 47 // OLD-PATH-POINTER-DAG: [[TYPE_char]] = !{!"omnipotent char", {{!.*}}, i64 0} 48 // OLD-PATH-POINTER-DAG: [[TYPE_S_PTR]] = !{!"p1 _ZTS1S", [[TYPE_pointer]], i64 0} 49 50 // NEW-PATH-DAG: [[TAG_S_PTR]] = !{[[TYPE_pointer:!.*]], [[TYPE_pointer]], i64 0, i64 8} 51 // NEW-PATH-DAG: [[TAG_B_s]] = !{[[TYPE_B:!.*]], [[TYPE_pointer]], i64 0, i64 8} 52 // 53 // NEW-PATH-DAG: [[TYPE_B]] = !{[[TYPE_char:!.*]], i64 8, !"_ZTS1B", [[TYPE_pointer]], i64 0, i64 8} 54 // NEW-PATH-DAG: [[TYPE_pointer]] = !{[[TYPE_char:!.*]], i64 8, !"any pointer"} 55 // NEW-PATH-DAG: [[TYPE_char]] = !{{{!.*}}, i64 1, !"omnipotent char"} 56 57 // NEW-PATH-POINTER-DAG: [[TAG_S_PTR]] = !{[[TYPE_S_PTR:!.*]], [[TYPE_S_PTR]], i64 0, i64 8} 58 // NEW-PATH-POINTER-DAG: [[TAG_B_s]] = !{[[TYPE_B:!.*]], [[TYPE_S_PTR]], i64 0, i64 8} 59 // 60 // NEW-PATH-POINTER-DAG: [[TYPE_B]] = !{[[TYPE_char:!.*]], i64 8, !"_ZTS1B", [[TYPE_S_PTR]], i64 0, i64 8} 61 // NEW-PATH-POINTER-DAG: [[TYPE_S_PTR]] = !{[[TYPE_pointer:!.+]], i64 8, !"p1 _ZTS1S"} 62 // NEW-PATH-POINTER-DAG: [[TYPE_pointer]] = !{[[TYPE_char:!.*]], i64 8, !"any pointer"} 63 // NEW-PATH-POINTER-DAG: [[TYPE_char]] = !{{{!.*}}, i64 1, !"omnipotent char"} 64