clang/test/CodeGen/builtin-preserve-access-index-array.c

   1 // RUN: %clang_cc1 -triple x86_64 -emit-llvm -debug-info-kind=limited %s -o - | FileCheck %s
   2
   3 #define _(x) (__builtin_preserve_access_index(x))
   4
   5 struct s1 {
   6   char a;
   7   int b[4];
   8 };
   9
  10 const void *unit1(struct s1 *arg) {
  11   return _(&arg->b[2]);
  12 }
  13 // CHECK: define dso_local ptr @unit1
  14 // 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]+]]
  15 // 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]+]]
  16 //
  17 // CHECK: ![[ARRAY]] = !DICompositeType(tag: DW_TAG_array_type
  18 // CHECK: ![[STRUCT_S1]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s1"