1; RUN: llc -split-dwarf=Enable -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t
2; RUN: llvm-dwarfdump -debug-dump=all %t | FileCheck %s
3
4; Based on the debuginfo-tests/sret.cpp code.
5
6; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x51ac5644b1937aa1)
7; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x51ac5644b1937aa1)
8
9%class.A = type { i32 (...)**, i32 }
10%class.B = type { i8 }
11
12@_ZTV1A = linkonce_odr unnamed_addr constant [4 x i8*] [i8* null, i8* bitcast ({ i8*, i8* }* @_ZTI1A to i8*), i8* bitcast (void (%class.A*)* @_ZN1AD2Ev to i8*), i8* bitcast (void (%class.A*)* @_ZN1AD0Ev to i8*)]
13@_ZTVN10__cxxabiv117__class_type_infoE = external global i8*
14@_ZTS1A = linkonce_odr constant [3 x i8] c"1A\00"
15@_ZTI1A = linkonce_odr constant { i8*, i8* } { i8* bitcast (i8** getelementptr inbounds (i8** @_ZTVN10__cxxabiv117__class_type_infoE, i64 2) to i8*), i8* getelementptr inbounds ([3 x i8]* @_ZTS1A, i32 0, i32 0) }
16
17@_ZN1AC1Ei = alias void (%class.A*, i32)* @_ZN1AC2Ei
18@_ZN1AC1ERKS_ = alias void (%class.A*, %class.A*)* @_ZN1AC2ERKS_
19
20; Function Attrs: nounwind uwtable
21define void @_ZN1AC2Ei(%class.A* %this, i32 %i) unnamed_addr #0 align 2 {
22entry:
23  %this.addr = alloca %class.A*, align 8
24  %i.addr = alloca i32, align 4
25  store %class.A* %this, %class.A** %this.addr, align 8
26  call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !67, metadata !{!"0x102"}), !dbg !69
27  store i32 %i, i32* %i.addr, align 4
28  call void @llvm.dbg.declare(metadata i32* %i.addr, metadata !70, metadata !{!"0x102"}), !dbg !71
29  %this1 = load %class.A** %this.addr
30  %0 = bitcast %class.A* %this1 to i8***, !dbg !72
31  store i8** getelementptr inbounds ([4 x i8*]* @_ZTV1A, i64 0, i64 2), i8*** %0, !dbg !72
32  %m_int = getelementptr inbounds %class.A* %this1, i32 0, i32 1, !dbg !72
33  %1 = load i32* %i.addr, align 4, !dbg !72
34  store i32 %1, i32* %m_int, align 4, !dbg !72
35  ret void, !dbg !73
36}
37
38; Function Attrs: nounwind readnone
39declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
40
41; Function Attrs: nounwind uwtable
42define void @_ZN1AC2ERKS_(%class.A* %this, %class.A* %rhs) unnamed_addr #0 align 2 {
43entry:
44  %this.addr = alloca %class.A*, align 8
45  %rhs.addr = alloca %class.A*, align 8
46  store %class.A* %this, %class.A** %this.addr, align 8
47  call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !74, metadata !{!"0x102"}), !dbg !75
48  store %class.A* %rhs, %class.A** %rhs.addr, align 8
49  call void @llvm.dbg.declare(metadata %class.A** %rhs.addr, metadata !76, metadata !{!"0x102"}), !dbg !77
50  %this1 = load %class.A** %this.addr
51  %0 = bitcast %class.A* %this1 to i8***, !dbg !78
52  store i8** getelementptr inbounds ([4 x i8*]* @_ZTV1A, i64 0, i64 2), i8*** %0, !dbg !78
53  %m_int = getelementptr inbounds %class.A* %this1, i32 0, i32 1, !dbg !78
54  %1 = load %class.A** %rhs.addr, align 8, !dbg !78
55  %m_int2 = getelementptr inbounds %class.A* %1, i32 0, i32 1, !dbg !78
56  %2 = load i32* %m_int2, align 4, !dbg !78
57  store i32 %2, i32* %m_int, align 4, !dbg !78
58  ret void, !dbg !79
59}
60
61; Function Attrs: nounwind uwtable
62define %class.A* @_ZN1AaSERKS_(%class.A* %this, %class.A* %rhs) #0 align 2 {
63entry:
64  %this.addr = alloca %class.A*, align 8
65  %rhs.addr = alloca %class.A*, align 8
66  store %class.A* %this, %class.A** %this.addr, align 8
67  call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !80, metadata !{!"0x102"}), !dbg !81
68  store %class.A* %rhs, %class.A** %rhs.addr, align 8
69  call void @llvm.dbg.declare(metadata %class.A** %rhs.addr, metadata !82, metadata !{!"0x102"}), !dbg !83
70  %this1 = load %class.A** %this.addr
71  %0 = load %class.A** %rhs.addr, align 8, !dbg !84
72  %m_int = getelementptr inbounds %class.A* %0, i32 0, i32 1, !dbg !84
73  %1 = load i32* %m_int, align 4, !dbg !84
74  %m_int2 = getelementptr inbounds %class.A* %this1, i32 0, i32 1, !dbg !84
75  store i32 %1, i32* %m_int2, align 4, !dbg !84
76  ret %class.A* %this1, !dbg !85
77}
78
79; Function Attrs: nounwind uwtable
80define i32 @_ZN1A7get_intEv(%class.A* %this) #0 align 2 {
81entry:
82  %this.addr = alloca %class.A*, align 8
83  store %class.A* %this, %class.A** %this.addr, align 8
84  call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !86, metadata !{!"0x102"}), !dbg !87
85  %this1 = load %class.A** %this.addr
86  %m_int = getelementptr inbounds %class.A* %this1, i32 0, i32 1, !dbg !88
87  %0 = load i32* %m_int, align 4, !dbg !88
88  ret i32 %0, !dbg !88
89}
90
91; Function Attrs: uwtable
92define void @_ZN1B9AInstanceEv(%class.A* noalias sret %agg.result, %class.B* %this) #2 align 2 {
93entry:
94  %this.addr = alloca %class.B*, align 8
95  %nrvo = alloca i1
96  %cleanup.dest.slot = alloca i32
97  store %class.B* %this, %class.B** %this.addr, align 8
98  call void @llvm.dbg.declare(metadata %class.B** %this.addr, metadata !89, metadata !{!"0x102"}), !dbg !91
99  %this1 = load %class.B** %this.addr
100  store i1 false, i1* %nrvo, !dbg !92
101  call void @llvm.dbg.declare(metadata %class.A* %agg.result, metadata !93, metadata !{!"0x102"}), !dbg !92
102  call void @_ZN1AC1Ei(%class.A* %agg.result, i32 12), !dbg !92
103  store i1 true, i1* %nrvo, !dbg !94
104  store i32 1, i32* %cleanup.dest.slot
105  %nrvo.val = load i1* %nrvo, !dbg !95
106  br i1 %nrvo.val, label %nrvo.skipdtor, label %nrvo.unused, !dbg !95
107
108nrvo.unused:                                      ; preds = %entry
109  call void @_ZN1AD2Ev(%class.A* %agg.result), !dbg !96
110  br label %nrvo.skipdtor, !dbg !96
111
112nrvo.skipdtor:                                    ; preds = %nrvo.unused, %entry
113  ret void, !dbg !98
114}
115
116; Function Attrs: nounwind uwtable
117define linkonce_odr void @_ZN1AD2Ev(%class.A* %this) unnamed_addr #0 align 2 {
118entry:
119  %this.addr = alloca %class.A*, align 8
120  store %class.A* %this, %class.A** %this.addr, align 8
121  call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !101, metadata !{!"0x102"}), !dbg !102
122  %this1 = load %class.A** %this.addr
123  ret void, !dbg !103
124}
125
126; Function Attrs: uwtable
127define i32 @main(i32 %argc, i8** %argv) #2 {
128entry:
129  %retval = alloca i32, align 4
130  %argc.addr = alloca i32, align 4
131  %argv.addr = alloca i8**, align 8
132  %b = alloca %class.B, align 1
133  %return_val = alloca i32, align 4
134  %temp.lvalue = alloca %class.A, align 8
135  %exn.slot = alloca i8*
136  %ehselector.slot = alloca i32
137  %a = alloca %class.A, align 8
138  %cleanup.dest.slot = alloca i32
139  store i32 0, i32* %retval
140  store i32 %argc, i32* %argc.addr, align 4
141  call void @llvm.dbg.declare(metadata i32* %argc.addr, metadata !104, metadata !{!"0x102"}), !dbg !105
142  store i8** %argv, i8*** %argv.addr, align 8
143  call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !106, metadata !{!"0x102"}), !dbg !105
144  call void @llvm.dbg.declare(metadata %class.B* %b, metadata !107, metadata !{!"0x102"}), !dbg !108
145  call void @_ZN1BC2Ev(%class.B* %b), !dbg !108
146  call void @llvm.dbg.declare(metadata i32* %return_val, metadata !109, metadata !{!"0x102"}), !dbg !110
147  call void @_ZN1B9AInstanceEv(%class.A* sret %temp.lvalue, %class.B* %b), !dbg !110
148  %call = invoke i32 @_ZN1A7get_intEv(%class.A* %temp.lvalue)
149          to label %invoke.cont unwind label %lpad, !dbg !110
150
151invoke.cont:                                      ; preds = %entry
152  call void @_ZN1AD2Ev(%class.A* %temp.lvalue), !dbg !111
153  store i32 %call, i32* %return_val, align 4, !dbg !111
154  call void @llvm.dbg.declare(metadata %class.A* %a, metadata !113, metadata !{!"0x102"}), !dbg !114
155  call void @_ZN1B9AInstanceEv(%class.A* sret %a, %class.B* %b), !dbg !114
156  %0 = load i32* %return_val, align 4, !dbg !115
157  store i32 %0, i32* %retval, !dbg !115
158  store i32 1, i32* %cleanup.dest.slot
159  call void @_ZN1AD2Ev(%class.A* %a), !dbg !116
160  %1 = load i32* %retval, !dbg !116
161  ret i32 %1, !dbg !116
162
163lpad:                                             ; preds = %entry
164  %2 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
165          cleanup, !dbg !116
166  %3 = extractvalue { i8*, i32 } %2, 0, !dbg !116
167  store i8* %3, i8** %exn.slot, !dbg !116
168  %4 = extractvalue { i8*, i32 } %2, 1, !dbg !116
169  store i32 %4, i32* %ehselector.slot, !dbg !116
170  invoke void @_ZN1AD2Ev(%class.A* %temp.lvalue)
171          to label %invoke.cont1 unwind label %terminate.lpad, !dbg !116
172
173invoke.cont1:                                     ; preds = %lpad
174  br label %eh.resume, !dbg !117
175
176eh.resume:                                        ; preds = %invoke.cont1
177  %exn = load i8** %exn.slot, !dbg !119
178  %sel = load i32* %ehselector.slot, !dbg !119
179  %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn, 0, !dbg !119
180  %lpad.val2 = insertvalue { i8*, i32 } %lpad.val, i32 %sel, 1, !dbg !119
181  resume { i8*, i32 } %lpad.val2, !dbg !119
182
183terminate.lpad:                                   ; preds = %lpad
184  %5 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
185          catch i8* null, !dbg !121
186  %6 = extractvalue { i8*, i32 } %5, 0, !dbg !121
187  call void @__clang_call_terminate(i8* %6) #5, !dbg !121
188  unreachable, !dbg !121
189}
190
191; Function Attrs: nounwind uwtable
192define linkonce_odr void @_ZN1BC2Ev(%class.B* %this) unnamed_addr #0 align 2 {
193entry:
194  %this.addr = alloca %class.B*, align 8
195  store %class.B* %this, %class.B** %this.addr, align 8
196  call void @llvm.dbg.declare(metadata %class.B** %this.addr, metadata !123, metadata !{!"0x102"}), !dbg !124
197  %this1 = load %class.B** %this.addr
198  ret void, !dbg !125
199}
200
201declare i32 @__gxx_personality_v0(...)
202
203; Function Attrs: noinline noreturn nounwind
204define linkonce_odr hidden void @__clang_call_terminate(i8*) #3 {
205  %2 = call i8* @__cxa_begin_catch(i8* %0) #6
206  call void @_ZSt9terminatev() #5
207  unreachable
208}
209
210declare i8* @__cxa_begin_catch(i8*)
211
212declare void @_ZSt9terminatev()
213
214; Function Attrs: uwtable
215define linkonce_odr void @_ZN1AD0Ev(%class.A* %this) unnamed_addr #2 align 2 {
216entry:
217  %this.addr = alloca %class.A*, align 8
218  %exn.slot = alloca i8*
219  %ehselector.slot = alloca i32
220  store %class.A* %this, %class.A** %this.addr, align 8
221  call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !126, metadata !{!"0x102"}), !dbg !127
222  %this1 = load %class.A** %this.addr
223  invoke void @_ZN1AD2Ev(%class.A* %this1)
224          to label %invoke.cont unwind label %lpad, !dbg !128
225
226invoke.cont:                                      ; preds = %entry
227  %0 = bitcast %class.A* %this1 to i8*, !dbg !129
228  call void @_ZdlPv(i8* %0) #7, !dbg !129
229  ret void, !dbg !129
230
231lpad:                                             ; preds = %entry
232  %1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
233          cleanup, !dbg !131
234  %2 = extractvalue { i8*, i32 } %1, 0, !dbg !131
235  store i8* %2, i8** %exn.slot, !dbg !131
236  %3 = extractvalue { i8*, i32 } %1, 1, !dbg !131
237  store i32 %3, i32* %ehselector.slot, !dbg !131
238  %4 = bitcast %class.A* %this1 to i8*, !dbg !131
239  call void @_ZdlPv(i8* %4) #7, !dbg !131
240  br label %eh.resume, !dbg !131
241
242eh.resume:                                        ; preds = %lpad
243  %exn = load i8** %exn.slot, !dbg !133
244  %sel = load i32* %ehselector.slot, !dbg !133
245  %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn, 0, !dbg !133
246  %lpad.val2 = insertvalue { i8*, i32 } %lpad.val, i32 %sel, 1, !dbg !133
247  resume { i8*, i32 } %lpad.val2, !dbg !133
248}
249
250; Function Attrs: nobuiltin nounwind
251declare void @_ZdlPv(i8*) #4
252
253attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
254attributes #1 = { nounwind readnone }
255attributes #2 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
256attributes #3 = { noinline noreturn nounwind }
257attributes #4 = { nobuiltin nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
258attributes #5 = { noreturn nounwind }
259attributes #6 = { nounwind }
260attributes #7 = { builtin nounwind }
261
262!llvm.dbg.cu = !{!0}
263!llvm.module.flags = !{!64, !65}
264!llvm.ident = !{!66}
265
266!0 = !{!"0x11\004\00clang version 3.5.0 (trunk 203283) (llvm/trunk 203307)\000\00\000\00sret.dwo\001", !1, !2, !3, !48, !2, !2} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/sret.cpp] [DW_LANG_C_plus_plus]
267!1 = !{!"sret.cpp", !"/usr/local/google/home/echristo/tmp"}
268!2 = !{}
269!3 = !{!4, !37}
270!4 = !{!"0x2\00A\001\00128\0064\000\000\000", !1, null, null, !5, !"_ZTS1A", null, !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 1, size 128, align 64, offset 0] [def] [from ]
271!5 = !{!6, !13, !14, !19, !25, !29, !33}
272!6 = !{!"0xd\00_vptr$A\000\0064\000\000\0064", !1, !7, !8} ; [ DW_TAG_member ] [_vptr$A] [line 0, size 64, align 0, offset 0] [artificial] [from ]
273!7 = !{!"0x29", !1}          ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/tmp/sret.cpp]
274!8 = !{!"0xf\00\000\0064\000\000\000", null, null, !9} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 0, offset 0] [from __vtbl_ptr_type]
275!9 = !{!"0xf\00__vtbl_ptr_type\000\0064\000\000\000", null, null, !10} ; [ DW_TAG_pointer_type ] [__vtbl_ptr_type] [line 0, size 64, align 0, offset 0] [from ]
276!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 ]
277!11 = !{!12}
278!12 = !{!"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]
279!13 = !{!"0xd\00m_int\0013\0032\0032\0064\002", !1, !"_ZTS1A", !12} ; [ DW_TAG_member ] [m_int] [line 13, size 32, align 32, offset 64] [protected] [from int]
280!14 = !{!"0x2e\00A\00A\00\004\000\000\000\006\00256\000\004", !1, !"_ZTS1A", !15, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 4] [A]
281!15 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !16, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
282!16 = !{null, !17, !12}
283!17 = !{!"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]
284!19 = !{!"0x2e\00A\00A\00\005\000\000\000\006\00256\000\005", !1, !"_ZTS1A", !20, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 5] [A]
285!20 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !21, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
286!21 = !{null, !17, !22}
287!22 = !{!"0x10\00\000\000\000\000\000", null, null, !23} ; [ DW_TAG_reference_type ] [line 0, size 0, align 0, offset 0] [from ]
288!23 = !{!"0x26\00\000\000\000\000\000", null, null, !"_ZTS1A"} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from _ZTS1A]
289!25 = !{!"0x2e\00operator=\00operator=\00_ZN1AaSERKS_\007\000\000\000\006\00256\000\007", !1, !"_ZTS1A", !26, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 7] [operator=]
290!26 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !27, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
291!27 = !{!22, !17, !22}
292!29 = !{!"0x2e\00~A\00~A\00\008\000\000\001\006\00256\000\008", !1, !"_ZTS1A", !30, !"_ZTS1A", null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 8] [~A]
293!30 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !31, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
294!31 = !{null, !17}
295!33 = !{!"0x2e\00get_int\00get_int\00_ZN1A7get_intEv\0010\000\000\000\006\00256\000\0010", !1, !"_ZTS1A", !34, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 10] [get_int]
296!34 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !35, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
297!35 = !{!12, !17}
298!37 = !{!"0x2\00B\0038\008\008\000\000\000", !1, null, null, !38, null, null, !"_ZTS1B"} ; [ DW_TAG_class_type ] [B] [line 38, size 8, align 8, offset 0] [def] [from ]
299!38 = !{!39, !44}
300!39 = !{!"0x2e\00B\00B\00\0041\000\000\000\006\00256\000\0041", !1, !"_ZTS1B", !40, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 41] [B]
301!40 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !41, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
302!41 = !{null, !42}
303!42 = !{!"0xf\00\000\0064\0064\000\001088", null, null, !"_ZTS1B"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1B]
304!44 = !{!"0x2e\00AInstance\00AInstance\00_ZN1B9AInstanceEv\0043\000\000\000\006\00256\000\0043", !1, !"_ZTS1B", !45, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 43] [AInstance]
305!45 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !46, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
306!46 = !{!4, !42}
307!48 = !{!49, !50, !51, !52, !53, !54, !61, !62, !63}
308!49 = !{!"0x2e\00A\00A\00_ZN1AC2Ei\0016\000\001\000\006\00256\000\0018", !1, !"_ZTS1A", !15, null, void (%class.A*, i32)* @_ZN1AC2Ei, null, !14, !2} ; [ DW_TAG_subprogram ] [line 16] [def] [scope 18] [A]
309!50 = !{!"0x2e\00A\00A\00_ZN1AC2ERKS_\0021\000\001\000\006\00256\000\0023", !1, !"_ZTS1A", !20, null, void (%class.A*, %class.A*)* @_ZN1AC2ERKS_, null, !19, !2} ; [ DW_TAG_subprogram ] [line 21] [def] [scope 23] [A]
310!51 = !{!"0x2e\00operator=\00operator=\00_ZN1AaSERKS_\0027\000\001\000\006\00256\000\0028", !1, !"_ZTS1A", !26, null, %class.A* (%class.A*, %class.A*)* @_ZN1AaSERKS_, null, !25, !2} ; [ DW_TAG_subprogram ] [line 27] [def] [scope 28] [operator=]
311!52 = !{!"0x2e\00get_int\00get_int\00_ZN1A7get_intEv\0033\000\001\000\006\00256\000\0034", !1, !"_ZTS1A", !34, null, i32 (%class.A*)* @_ZN1A7get_intEv, null, !33, !2} ; [ DW_TAG_subprogram ] [line 33] [def] [scope 34] [get_int]
312!53 = !{!"0x2e\00AInstance\00AInstance\00_ZN1B9AInstanceEv\0047\000\001\000\006\00256\000\0048", !1, !"_ZTS1B", !45, null, void (%class.A*, %class.B*)* @_ZN1B9AInstanceEv, null, !44, !2} ; [ DW_TAG_subprogram ] [line 47] [def] [scope 48] [AInstance]
313!54 = !{!"0x2e\00main\00main\00\0053\000\001\000\006\00256\000\0054", !1, !7, !55, null, i32 (i32, i8**)* @main, null, null, !2} ; [ DW_TAG_subprogram ] [line 53] [def] [scope 54] [main]
314!55 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !56, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
315!56 = !{!12, !12, !57}
316!57 = !{!"0xf\00\000\0064\0064\000\000", null, null, !58} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
317!58 = !{!"0xf\00\000\0064\0064\000\000", null, null, !59} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
318!59 = !{!"0x26\00\000\000\000\000\000", null, null, !60} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from char]
319!60 = !{!"0x24\00char\000\008\008\000\000\006", null, null} ; [ DW_TAG_base_type ] [char] [line 0, size 8, align 8, offset 0, enc DW_ATE_signed_char]
320!61 = !{!"0x2e\00~A\00~A\00_ZN1AD0Ev\008\000\001\000\006\00256\000\008", !1, !"_ZTS1A", !30, null, void (%class.A*)* @_ZN1AD0Ev, null, !29, !2} ; [ DW_TAG_subprogram ] [line 8] [def] [~A]
321!62 = !{!"0x2e\00B\00B\00_ZN1BC2Ev\0041\000\001\000\006\00256\000\0041", !1, !"_ZTS1B", !40, null, void (%class.B*)* @_ZN1BC2Ev, null, !39, !2} ; [ DW_TAG_subprogram ] [line 41] [def] [B]
322!63 = !{!"0x2e\00~A\00~A\00_ZN1AD2Ev\008\000\001\000\006\00256\000\008", !1, !"_ZTS1A", !30, null, void (%class.A*)* @_ZN1AD2Ev, null, !29, !2} ; [ DW_TAG_subprogram ] [line 8] [def] [~A]
323!64 = !{i32 2, !"Dwarf Version", i32 4}
324!65 = !{i32 1, !"Debug Info Version", i32 2}
325!66 = !{!"clang version 3.5.0 (trunk 203283) (llvm/trunk 203307)"}
326!67 = !{!"0x101\00this\0016777216\001088", !49, null, !68} ; [ DW_TAG_arg_variable ] [this] [line 0]
327!68 = !{!"0xf\00\000\0064\0064\000\000", null, null, !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1A]
328!69 = !MDLocation(line: 0, scope: !49)
329!70 = !{!"0x101\00i\0033554448\000", !49, !7, !12} ; [ DW_TAG_arg_variable ] [i] [line 16]
330!71 = !MDLocation(line: 16, scope: !49)
331!72 = !MDLocation(line: 18, scope: !49)
332!73 = !MDLocation(line: 19, scope: !49)
333!74 = !{!"0x101\00this\0016777216\001088", !50, null, !68} ; [ DW_TAG_arg_variable ] [this] [line 0]
334!75 = !MDLocation(line: 0, scope: !50)
335!76 = !{!"0x101\00rhs\0033554453\000", !50, !7, !22} ; [ DW_TAG_arg_variable ] [rhs] [line 21]
336!77 = !MDLocation(line: 21, scope: !50)
337!78 = !MDLocation(line: 23, scope: !50)
338!79 = !MDLocation(line: 24, scope: !50)
339!80 = !{!"0x101\00this\0016777216\001088", !51, null, !68} ; [ DW_TAG_arg_variable ] [this] [line 0]
340!81 = !MDLocation(line: 0, scope: !51)
341!82 = !{!"0x101\00rhs\0033554459\000", !51, !7, !22} ; [ DW_TAG_arg_variable ] [rhs] [line 27]
342!83 = !MDLocation(line: 27, scope: !51)
343!84 = !MDLocation(line: 29, scope: !51)
344!85 = !MDLocation(line: 30, scope: !51)
345!86 = !{!"0x101\00this\0016777216\001088", !52, null, !68} ; [ DW_TAG_arg_variable ] [this] [line 0]
346!87 = !MDLocation(line: 0, scope: !52)
347!88 = !MDLocation(line: 35, scope: !52)
348!89 = !{!"0x101\00this\0016777216\001088", !53, null, !90} ; [ DW_TAG_arg_variable ] [this] [line 0]
349!90 = !{!"0xf\00\000\0064\0064\000\000", null, null, !"_ZTS1B"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1B]
350!91 = !MDLocation(line: 0, scope: !53)
351!92 = !MDLocation(line: 49, scope: !53)
352!93 = !{!"0x100\00a\0049\008192", !53, !7, !4} ; [ DW_TAG_auto_variable ] [a] [line 49]
353!94 = !MDLocation(line: 50, scope: !53)
354!95 = !MDLocation(line: 51, scope: !53)
355!96 = !MDLocation(line: 51, scope: !97)
356!97 = !{!"0xb\0051\000\002", !1, !53} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
357!98 = !MDLocation(line: 51, scope: !99)
358!99 = !{!"0xb\0051\000\003", !1, !100} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
359!100 = !{!"0xb\0051\000\001", !1, !53} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
360!101 = !{!"0x101\00this\0016777216\001088", !63, null, !68} ; [ DW_TAG_arg_variable ] [this] [line 0]
361!102 = !MDLocation(line: 0, scope: !63)
362!103 = !MDLocation(line: 8, scope: !63)
363!104 = !{!"0x101\00argc\0016777269\000", !54, !7, !12} ; [ DW_TAG_arg_variable ] [argc] [line 53]
364!105 = !MDLocation(line: 53, scope: !54)
365!106 = !{!"0x101\00argv\0033554485\000", !54, !7, !57} ; [ DW_TAG_arg_variable ] [argv] [line 53]
366!107 = !{!"0x100\00b\0055\000", !54, !7, !37} ; [ DW_TAG_auto_variable ] [b] [line 55]
367!108 = !MDLocation(line: 55, scope: !54)
368!109 = !{!"0x100\00return_val\0056\000", !54, !7, !12} ; [ DW_TAG_auto_variable ] [return_val] [line 56]
369!110 = !MDLocation(line: 56, scope: !54)
370!111 = !MDLocation(line: 56, scope: !112)
371!112 = !{!"0xb\0056\000\001", !1, !54} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
372!113 = !{!"0x100\00a\0058\000", !54, !7, !4} ; [ DW_TAG_auto_variable ] [a] [line 58]
373!114 = !MDLocation(line: 58, scope: !54)
374!115 = !MDLocation(line: 59, scope: !54)
375!116 = !MDLocation(line: 60, scope: !54)
376!117 = !MDLocation(line: 60, scope: !118)
377!118 = !{!"0xb\0060\000\001", !1, !54} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
378!119 = !MDLocation(line: 60, scope: !120)
379!120 = !{!"0xb\0060\000\003", !1, !54} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
380!121 = !MDLocation(line: 60, scope: !122)
381!122 = !{!"0xb\0060\000\002", !1, !54} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
382!123 = !{!"0x101\00this\0016777216\001088", !62, null, !90} ; [ DW_TAG_arg_variable ] [this] [line 0]
383!124 = !MDLocation(line: 0, scope: !62)
384!125 = !MDLocation(line: 41, scope: !62)
385!126 = !{!"0x101\00this\0016777216\001088", !61, null, !68} ; [ DW_TAG_arg_variable ] [this] [line 0]
386!127 = !MDLocation(line: 0, scope: !61)
387!128 = !MDLocation(line: 8, scope: !61)
388!129 = !MDLocation(line: 8, scope: !130)
389!130 = !{!"0xb\008\000\001", !1, !61} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
390!131 = !MDLocation(line: 8, scope: !132)
391!132 = !{!"0xb\008\000\002", !1, !61} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
392!133 = !MDLocation(line: 8, scope: !134)
393!134 = !{!"0xb\008\000\003", !1, !61} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
394