1; REQUIRES: object-emission
2;
3; RUN: llvm-link %s %p/type-unique-odr-b.ll -S -o - | %llc_dwarf -filetype=obj -O0 | llvm-dwarfdump -debug-dump=info - | FileCheck %s
4;
5; Test ODR-based type uniquing for C++ class members.
6; rdar://problem/15851313.
7;
8; $ cat -n type-unique-odr-a.cpp
9;     1	class A {
10;     2	  int data;
11;     3	protected:
12;     4	  void getFoo();
13;     5	};
14;     6
15;     7	static void bar() {
16;     8	  A a;
17;     9	}
18;    10
19;    11	void baz() { bar(); }
20;; #include "ab.h"
21; foo_t bar() {
22;     return A().getFoo();
23; }
24;
25; CHECK:      DW_TAG_class_type
26; CHECK-NEXT:   DW_AT_name {{.*}} "A"
27; CHECK-NOT:  DW_TAG
28; CHECK:      DW_TAG_member
29; CHECK-NEXT:   DW_AT_name {{.*}} "data"
30; CHECK-NOT:  DW_TAG
31; CHECK:      DW_TAG_subprogram
32; CHECK-NOT: DW_TAG
33; CHECK:   DW_AT_MIPS_linkage_name {{.*}} "_ZN1A6getFooEv"
34; CHECK-NOT: DW_TAG
35; CHECK:   DW_AT_name {{.*}} "getFoo"
36; CHECK:      DW_TAG_subprogram
37; CHECK-NOT: DW_TAG
38; CHECK:   DW_AT_MIPS_linkage_name {{.*}} "_Z3bazv"
39; CHECK:      DW_TAG_subprogram
40; CHECK-NOT: DW_TAG
41; CHECK:   DW_AT_MIPS_linkage_name {{.*}} "_ZL3barv"
42
43; getFoo and A may only appear once.
44; CHECK-NOT:  AT_name{{.*(getFoo)|("A")}}
45
46
47; ModuleID = 'type-unique-odr-a.cpp'
48
49%class.A = type { i32 }
50
51; Function Attrs: nounwind
52define void @_Z3bazv() #0 {
53entry:
54  call void @_ZL3barv(), !dbg !23
55  ret void, !dbg !23
56}
57
58; Function Attrs: nounwind
59define internal void @_ZL3barv() #0 {
60entry:
61  %a = alloca %class.A, align 4
62  call void @llvm.dbg.declare(metadata %class.A* %a, metadata !24, metadata !{!"0x102"}), !dbg !25
63  ret void, !dbg !26
64}
65
66; Function Attrs: nounwind readnone
67declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
68
69attributes #0 = { nounwind }
70attributes #1 = { nounwind readnone }
71
72!llvm.dbg.cu = !{!0}
73!llvm.module.flags = !{!20, !21}
74!llvm.ident = !{!22}
75
76!0 = !{!"0x11\004\00clang version 3.5.0 \000\00\000\00\001", !1, !2, !3, !14, !2, !2} ; [ DW_TAG_compile_unit ] [<unknown>] [DW_LANG_C_plus_plus]
77!1 = !{!"<unknown>", !""}
78!2 = !{}
79!3 = !{!4}
80!4 = !{!"0x2\00A\001\0032\0032\000\000\000", !5, null, null, !6, null, null, !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 1, size 32, align 32, offset 0] [def] [from ]
81!5 = !{!"type-unique-odr-a.cpp", !""}
82!6 = !{!7, !9}
83!7 = !{!"0xd\00data\002\0032\0032\000\001", !5, !"_ZTS1A", !8} ; [ DW_TAG_member ] [data] [line 2, size 32, align 32, offset 0] [private] [from int]
84!8 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
85!9 = !{!"0x2e\00getFoo\00getFoo\00_ZN1A6getFooEv\004\000\000\000\006\00258\000\004", !5, !"_ZTS1A", !10, null, null, null, i32 0, !13} ; [ DW_TAG_subprogram ] [line 4] [protected] [getFoo]
86!10 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !11, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
87!11 = !{null, !12}
88!12 = !{!"0xf\00\000\0064\0064\000\001088", null, null, !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A]
89!13 = !{i32 786468}
90!14 = !{!15, !19}
91!15 = !{!"0x2e\00baz\00baz\00_Z3bazv\0011\000\001\000\006\00256\000\0011", !5, !16, !17, null, void ()* @_Z3bazv, null, null, !2} ; [ DW_TAG_subprogram ] [line 11] [def] [baz]
92!16 = !{!"0x29", !5}         ; [ DW_TAG_file_type ] [type-unique-odr-a.cpp]
93!17 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !18, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
94!18 = !{null}
95!19 = !{!"0x2e\00bar\00bar\00_ZL3barv\007\001\001\000\006\00256\000\007", !5, !16, !17, null, void ()* @_ZL3barv, null, null, !2} ; [ DW_TAG_subprogram ] [line 7] [local] [def] [bar]
96!20 = !{i32 2, !"Dwarf Version", i32 4}
97!21 = !{i32 1, !"Debug Info Version", i32 2}
98!22 = !{!"clang version 3.5.0 "}
99!23 = !MDLocation(line: 11, scope: !15)
100!24 = !{!"0x100\00a\008\000", !19, !16, !"_ZTS1A"} ; [ DW_TAG_auto_variable ] [a] [line 8]
101!25 = !MDLocation(line: 8, scope: !19)
102!26 = !MDLocation(line: 9, scope: !19)
103