|  | // RUN: %clang_cc1 -triple x86_64 -emit-llvm -debug-info-kind=limited %s -o - | FileCheck %s | 
|  |  | 
|  | #define _(x) (__builtin_preserve_access_index(x)) | 
|  |  | 
|  | struct s1 { | 
|  | char a; | 
|  | int b[4]; | 
|  | }; | 
|  |  | 
|  | const void *unit1(struct s1 *arg) { | 
|  | return _(&arg->b[2]); | 
|  | } | 
|  | // CHECK: define dso_local ptr @unit1 | 
|  | // CHECK: call ptr @llvm.preserve.struct.access.index.p0.p0(ptr elementtype(%struct.s1) %{{[0-9a-z]+}}, i32 1, i32 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[STRUCT_S1:[0-9]+]] | 
|  | // CHECK: call ptr @llvm.preserve.array.access.index.p0.p0(ptr elementtype([4 x i32]) %{{[0-9a-z]+}}, i32 1, i32 2), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[ARRAY:[0-9]+]] | 
|  | // | 
|  | // CHECK: ![[ARRAY]] = !DICompositeType(tag: DW_TAG_array_type | 
|  | // CHECK: ![[STRUCT_S1]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s1" |