debug-info-template-member.cpp revision 74341d8fd49db382e83008ecea5c0d8ff9d8b6cb 
1// RUN: %clang_cc1 -emit-llvm -g -triple x86_64-apple-darwin %s -o - | FileCheck %s
2
3struct MyClass {
4  template <int i> int add(int j) {
5    return i + j;
6  }
7  virtual void func() {
8  }
9};
10
11int add2(int x) {
12  return MyClass().add<2>(x);
13}
14
15inline int add3(int x) {
16  return MyClass().add<3>(x); // even though add<3> is ODR used, don't emit it since we don't codegen it
17}
18
19// CHECK: [[FOO_MEM:![0-9]*]], i32 0, null, null, metadata !"_ZTS3foo"} ; [ DW_TAG_structure_type ] [foo]
20// CHECK: [[FOO_MEM]] = metadata !{metadata [[FOO_FUNC:![0-9]*]]}
21// CHECK: [[FOO_FUNC]] = {{.*}}, metadata !"_ZN3foo4funcEN5outerIS_E5innerE", i32 {{[0-9]*}}, metadata [[FOO_FUNC_TYPE:![0-9]*]], {{.*}} ; [ DW_TAG_subprogram ] {{.*}} [func]
22// CHECK: [[FOO_FUNC_TYPE]] = {{.*}}, metadata [[FOO_FUNC_PARAMS:![0-9]*]], i32 0, null, null, null} ; [ DW_TAG_subroutine_type ]
23// CHECK: [[FOO_FUNC_PARAMS]] = metadata !{null, metadata !{{[0-9]*}}, metadata [[OUTER_FOO_INNER:![0-9]*]]}
24// CHECK: [[OUTER_FOO_INNER]] = {{.*}} ; [ DW_TAG_structure_type ] [inner]
25
26// CHECK: metadata [[VIRT_MEM:![0-9]*]], i32 0, metadata !{{[0-9]*}}, metadata [[VIRT_TEMP_PARAM:![0-9]*]], metadata !"_ZTS4virtI4elemE"} ; [ DW_TAG_structure_type ] [virt<elem>] {{.*}} [def]
27// CHECK: [[ELEM:![0-9]*]] = {{.*}}, metadata [[ELEM_MEM:![0-9]*]], i32 0, null, null, metadata !"_ZTS4elem"} ; [ DW_TAG_structure_type ] [elem] {{.*}} [def]
28// CHECK: [[ELEM_MEM]] = metadata !{metadata [[ELEM_X:![0-9]*]]}
29// CHECK: [[ELEM_X]] = {{.*}} ; [ DW_TAG_member ] [x] {{.*}} [static] [from virt<elem>]
30// CHECK: [[VIRT_TEMP_PARAM]] = metadata !{metadata [[VIRT_T:![0-9]*]]}
31// CHECK: [[VIRT_T]] = {{.*}}, metadata !"T", metadata [[ELEM]], {{.*}} ; [ DW_TAG_template_type_parameter ]
32
33// CHECK: [[C:![0-9]*]] = {{.*}}, metadata [[C_MEM:![0-9]*]], i32 0, metadata [[C]], null, metadata !"_ZTS7MyClass"} ; [ DW_TAG_structure_type ] [MyClass]
34// CHECK: [[C_MEM]] = metadata !{metadata [[C_VPTR:![0-9]*]], metadata [[C_ADD:![0-9]*]], metadata [[C_FUNC:![0-9]*]], metadata [[C_CTOR:![0-9]*]]}
35// CHECK: [[C_VPTR]] = {{.*}} ; [ DW_TAG_member ] [_vptr$MyClass]
36
37// CHECK: [[C_ADD]] = {{.*}} ; [ DW_TAG_subprogram ] [line 4] [add<2>]
38// CHECK: [[C_FUNC]] = {{.*}} ; [ DW_TAG_subprogram ] [line 7] [func]
39// CHECK: [[C_CTOR]] = {{.*}} ; [ DW_TAG_subprogram ] [line 0] [MyClass]
40
41template<typename T>
42struct outer {
43  struct inner {
44    int i;
45  };
46};
47
48struct foo {
49  void func(outer<foo>::inner);
50};
51
52inline void func() {
53  // require 'foo' to be complete before the emission of 'inner' so that, when
54  // constructing the context chain for 'x' we emit the full definition of
55  // 'foo', which requires the definition of 'inner' again
56  foo f;
57}
58
59outer<foo>::inner x;
60
61// CHECK: metadata [[OUTER_FOO_INNER]], i32 {{[0-9]*}}, i32 {{[0-9]*}}, %"struct.outer<foo>::inner"* @x, {{.*}} ; [ DW_TAG_variable ] [x]
62
63template <typename T>
64struct virt {
65  T* values;
66  virtual ~virt();
67};
68struct elem {
69  static virt<elem> x; // ensure that completing 'elem' will require/completing 'virt<elem>'
70};
71inline void f1() {
72  elem e; // ensure 'elem' is required to be complete when it is emitted as a template argument for 'virt<elem>'
73};
74void f2() {
75  virt<elem> d; // emit 'virt<elem>'
76}
77
78