1 // RUN: %clang_cc1 -triple x86_64-linux -O1 -disable-llvm-passes %s \ 2 // RUN: -emit-llvm -o - | FileCheck %s -check-prefixes=CHECK,OLD-PATH 3 // RUN: %clang_cc1 -triple x86_64-linux -O1 -disable-llvm-passes %s \ 4 // RUN: -emit-llvm -new-struct-path-tbaa -o - | FileCheck %s -check-prefixes=CHECK,NEW-PATH 5 // 6 // Check that we generate correct TBAA information for lvalues constructed 7 // with use of casts. 8 9 struct V { 10 unsigned n; 11 }; 12 13 struct S { 14 char bytes[4]; 15 }; 16 17 void foo(S *p) { 18 // CHECK-LABEL: _Z3fooP1S 19 // CHECK: store i32 5, {{.*}}, !tbaa [[TAG_V_n:!.*]] 20 ((V*)p->bytes)->n = 5; 21 } 22 23 // OLD-PATH-DAG: [[TAG_V_n]] = !{[[TYPE_V:!.*]], [[TYPE_int:!.*]], i64 0} 24 // OLD-PATH-DAG: [[TYPE_V]] = !{!"_ZTS1V", !{{.*}}, i64 0} 25 // OLD-PATH-DAG: [[TYPE_int]] = !{!"int", !{{.*}}, i64 0} 26 // NEW-PATH-DAG: [[TAG_V_n]] = !{[[TYPE_V:!.*]], [[TYPE_int:!.*]], i64 0, i64 4} 27 // NEW-PATH-DAG: [[TYPE_V]] = !{[[TYPE_char:!.*]], i64 4, !"_ZTS1V", [[TYPE_int]], i64 0, i64 4} 28 // NEW-PATH-DAG: [[TYPE_int]] = !{[[TYPE_char]], i64 4, !"int"} 29