|  | ; RUN: llc -split-dwarf-file=foo.dwo -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t | 
|  | ; RUN: llvm-dwarfdump -v -all %t | FileCheck %s --check-prefix=CHECK-DWO | 
|  |  | 
|  | ; Based on the debuginfo-tests/sret.cpp code. | 
|  |  | 
|  | ; CHECK-DWO: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x51ac5644b1937aa1) | 
|  | ; CHECK-DWO: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x51ac5644b1937aa1) | 
|  |  | 
|  | ; RUN: llc -O0 -fast-isel=true -mtriple=x86_64-apple-darwin -filetype=obj -o - %s | llvm-dwarfdump -v - | FileCheck %s | 
|  | ; RUN: llc -O0 -fast-isel=false -mtriple=x86_64-apple-darwin -filetype=obj -o - %s | llvm-dwarfdump -v - | FileCheck %s | 
|  | ; CHECK: _ZN1B9AInstanceEv | 
|  | ; CHECK: DW_TAG_variable | 
|  | ; CHECK-NEXT:   DW_AT_location [DW_FORM_sec_offset] (0x00000000 | 
|  | ; CHECK-NEXT:     [{{.*}}, {{.*}}): DW_OP_breg5 RDI+0 | 
|  | ; CHECK-NEXT:     [{{.*}}, {{.*}}): DW_OP_breg6 RBP-24, DW_OP_deref) | 
|  | ; CHECK-NEXT:   DW_AT_name {{.*}}"a" | 
|  |  | 
|  | %class.A = type { i32 (...)**, i32 } | 
|  | %class.B = type { i8 } | 
|  |  | 
|  | @_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*)] | 
|  | @_ZTVN10__cxxabiv117__class_type_infoE = external global i8* | 
|  | @_ZTS1A = linkonce_odr constant [3 x i8] c"1A\00" | 
|  | @_ZTI1A = linkonce_odr constant { i8*, i8* } { i8* bitcast (i8** getelementptr inbounds (i8*, i8** @_ZTVN10__cxxabiv117__class_type_infoE, i64 2) to i8*), i8* getelementptr inbounds ([3 x i8], [3 x i8]* @_ZTS1A, i32 0, i32 0) } | 
|  |  | 
|  | @_ZN1AC1Ei = alias void (%class.A*, i32), void (%class.A*, i32)* @_ZN1AC2Ei | 
|  | @_ZN1AC1ERKS_ = alias void (%class.A*, %class.A*), void (%class.A*, %class.A*)* @_ZN1AC2ERKS_ | 
|  |  | 
|  | ; Function Attrs: nounwind uwtable | 
|  | define void @_ZN1AC2Ei(%class.A* %this, i32 %i) unnamed_addr #0 align 2 !dbg !49 { | 
|  | entry: | 
|  | %this.addr = alloca %class.A*, align 8 | 
|  | %i.addr = alloca i32, align 4 | 
|  | store %class.A* %this, %class.A** %this.addr, align 8 | 
|  | call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !67, metadata !DIExpression()), !dbg !69 | 
|  | store i32 %i, i32* %i.addr, align 4 | 
|  | call void @llvm.dbg.declare(metadata i32* %i.addr, metadata !70, metadata !DIExpression()), !dbg !71 | 
|  | %this1 = load %class.A*, %class.A** %this.addr | 
|  | %0 = bitcast %class.A* %this1 to i8***, !dbg !72 | 
|  | store i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @_ZTV1A, i64 0, i64 2), i8*** %0, !dbg !72 | 
|  | %m_int = getelementptr inbounds %class.A, %class.A* %this1, i32 0, i32 1, !dbg !72 | 
|  | %1 = load i32, i32* %i.addr, align 4, !dbg !72 | 
|  | store i32 %1, i32* %m_int, align 4, !dbg !72 | 
|  | ret void, !dbg !73 | 
|  | } | 
|  |  | 
|  | ; Function Attrs: nounwind readnone | 
|  | declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 | 
|  |  | 
|  | ; Function Attrs: nounwind uwtable | 
|  | define void @_ZN1AC2ERKS_(%class.A* %this, %class.A* %rhs) unnamed_addr #0 align 2 !dbg !50 { | 
|  | entry: | 
|  | %this.addr = alloca %class.A*, align 8 | 
|  | %rhs.addr = alloca %class.A*, align 8 | 
|  | store %class.A* %this, %class.A** %this.addr, align 8 | 
|  | call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !74, metadata !DIExpression()), !dbg !75 | 
|  | store %class.A* %rhs, %class.A** %rhs.addr, align 8 | 
|  | call void @llvm.dbg.declare(metadata %class.A** %rhs.addr, metadata !76, metadata !DIExpression()), !dbg !77 | 
|  | %this1 = load %class.A*, %class.A** %this.addr | 
|  | %0 = bitcast %class.A* %this1 to i8***, !dbg !78 | 
|  | store i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @_ZTV1A, i64 0, i64 2), i8*** %0, !dbg !78 | 
|  | %m_int = getelementptr inbounds %class.A, %class.A* %this1, i32 0, i32 1, !dbg !78 | 
|  | %1 = load %class.A*, %class.A** %rhs.addr, align 8, !dbg !78 | 
|  | %m_int2 = getelementptr inbounds %class.A, %class.A* %1, i32 0, i32 1, !dbg !78 | 
|  | %2 = load i32, i32* %m_int2, align 4, !dbg !78 | 
|  | store i32 %2, i32* %m_int, align 4, !dbg !78 | 
|  | ret void, !dbg !79 | 
|  | } | 
|  |  | 
|  | ; Function Attrs: nounwind uwtable | 
|  | define %class.A* @_ZN1AaSERKS_(%class.A* %this, %class.A* %rhs) #0 align 2 !dbg !51 { | 
|  | entry: | 
|  | %this.addr = alloca %class.A*, align 8 | 
|  | %rhs.addr = alloca %class.A*, align 8 | 
|  | store %class.A* %this, %class.A** %this.addr, align 8 | 
|  | call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !80, metadata !DIExpression()), !dbg !81 | 
|  | store %class.A* %rhs, %class.A** %rhs.addr, align 8 | 
|  | call void @llvm.dbg.declare(metadata %class.A** %rhs.addr, metadata !82, metadata !DIExpression()), !dbg !83 | 
|  | %this1 = load %class.A*, %class.A** %this.addr | 
|  | %0 = load %class.A*, %class.A** %rhs.addr, align 8, !dbg !84 | 
|  | %m_int = getelementptr inbounds %class.A, %class.A* %0, i32 0, i32 1, !dbg !84 | 
|  | %1 = load i32, i32* %m_int, align 4, !dbg !84 | 
|  | %m_int2 = getelementptr inbounds %class.A, %class.A* %this1, i32 0, i32 1, !dbg !84 | 
|  | store i32 %1, i32* %m_int2, align 4, !dbg !84 | 
|  | ret %class.A* %this1, !dbg !85 | 
|  | } | 
|  |  | 
|  | ; Function Attrs: nounwind uwtable | 
|  | define i32 @_ZN1A7get_intEv(%class.A* %this) #0 align 2 !dbg !52 { | 
|  | entry: | 
|  | %this.addr = alloca %class.A*, align 8 | 
|  | store %class.A* %this, %class.A** %this.addr, align 8 | 
|  | call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !86, metadata !DIExpression()), !dbg !87 | 
|  | %this1 = load %class.A*, %class.A** %this.addr | 
|  | %m_int = getelementptr inbounds %class.A, %class.A* %this1, i32 0, i32 1, !dbg !88 | 
|  | %0 = load i32, i32* %m_int, align 4, !dbg !88 | 
|  | ret i32 %0, !dbg !88 | 
|  | } | 
|  |  | 
|  | ; Function Attrs: uwtable | 
|  | define void @_ZN1B9AInstanceEv(%class.A* noalias sret %agg.result, %class.B* %this) #2 align 2 !dbg !53 { | 
|  | entry: | 
|  | %this.addr = alloca %class.B*, align 8 | 
|  | %nrvo = alloca i1 | 
|  | %cleanup.dest.slot = alloca i32 | 
|  | store %class.B* %this, %class.B** %this.addr, align 8 | 
|  | call void @llvm.dbg.declare(metadata %class.B** %this.addr, metadata !89, metadata !DIExpression()), !dbg !91 | 
|  | %this1 = load %class.B*, %class.B** %this.addr | 
|  | store i1 false, i1* %nrvo, !dbg !92 | 
|  | call void @llvm.dbg.declare(metadata %class.A* %agg.result, metadata !93, metadata !DIExpression()), !dbg !92 | 
|  | call void @_ZN1AC1Ei(%class.A* %agg.result, i32 12), !dbg !92 | 
|  | store i1 true, i1* %nrvo, !dbg !94 | 
|  | store i32 1, i32* %cleanup.dest.slot | 
|  | %nrvo.val = load i1, i1* %nrvo, !dbg !95 | 
|  | br i1 %nrvo.val, label %nrvo.skipdtor, label %nrvo.unused, !dbg !95 | 
|  |  | 
|  | nrvo.unused:                                      ; preds = %entry | 
|  | call void @_ZN1AD2Ev(%class.A* %agg.result), !dbg !96 | 
|  | br label %nrvo.skipdtor, !dbg !96 | 
|  |  | 
|  | nrvo.skipdtor:                                    ; preds = %nrvo.unused, %entry | 
|  | ret void, !dbg !98 | 
|  | } | 
|  |  | 
|  | ; Function Attrs: nounwind uwtable | 
|  | define linkonce_odr void @_ZN1AD2Ev(%class.A* %this) unnamed_addr #0 align 2 !dbg !63 { | 
|  | entry: | 
|  | %this.addr = alloca %class.A*, align 8 | 
|  | store %class.A* %this, %class.A** %this.addr, align 8 | 
|  | call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !101, metadata !DIExpression()), !dbg !102 | 
|  | %this1 = load %class.A*, %class.A** %this.addr | 
|  | ret void, !dbg !103 | 
|  | } | 
|  |  | 
|  | ; Function Attrs: uwtable | 
|  | define i32 @main(i32 %argc, i8** %argv) #2 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) !dbg !54 { | 
|  | entry: | 
|  | %retval = alloca i32, align 4 | 
|  | %argc.addr = alloca i32, align 4 | 
|  | %argv.addr = alloca i8**, align 8 | 
|  | %b = alloca %class.B, align 1 | 
|  | %return_val = alloca i32, align 4 | 
|  | %temp.lvalue = alloca %class.A, align 8 | 
|  | %exn.slot = alloca i8* | 
|  | %ehselector.slot = alloca i32 | 
|  | %a = alloca %class.A, align 8 | 
|  | %cleanup.dest.slot = alloca i32 | 
|  | store i32 0, i32* %retval | 
|  | store i32 %argc, i32* %argc.addr, align 4 | 
|  | call void @llvm.dbg.declare(metadata i32* %argc.addr, metadata !104, metadata !DIExpression()), !dbg !105 | 
|  | store i8** %argv, i8*** %argv.addr, align 8 | 
|  | call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !106, metadata !DIExpression()), !dbg !105 | 
|  | call void @llvm.dbg.declare(metadata %class.B* %b, metadata !107, metadata !DIExpression()), !dbg !108 | 
|  | call void @_ZN1BC2Ev(%class.B* %b), !dbg !108 | 
|  | call void @llvm.dbg.declare(metadata i32* %return_val, metadata !109, metadata !DIExpression()), !dbg !110 | 
|  | call void @_ZN1B9AInstanceEv(%class.A* sret %temp.lvalue, %class.B* %b), !dbg !110 | 
|  | %call = invoke i32 @_ZN1A7get_intEv(%class.A* %temp.lvalue) | 
|  | to label %invoke.cont unwind label %lpad, !dbg !110 | 
|  |  | 
|  | invoke.cont:                                      ; preds = %entry | 
|  | call void @_ZN1AD2Ev(%class.A* %temp.lvalue), !dbg !111 | 
|  | store i32 %call, i32* %return_val, align 4, !dbg !111 | 
|  | call void @llvm.dbg.declare(metadata %class.A* %a, metadata !113, metadata !DIExpression()), !dbg !114 | 
|  | call void @_ZN1B9AInstanceEv(%class.A* sret %a, %class.B* %b), !dbg !114 | 
|  | %0 = load i32, i32* %return_val, align 4, !dbg !115 | 
|  | store i32 %0, i32* %retval, !dbg !115 | 
|  | store i32 1, i32* %cleanup.dest.slot | 
|  | call void @_ZN1AD2Ev(%class.A* %a), !dbg !116 | 
|  | %1 = load i32, i32* %retval, !dbg !116 | 
|  | ret i32 %1, !dbg !116 | 
|  |  | 
|  | lpad:                                             ; preds = %entry | 
|  | %2 = landingpad { i8*, i32 } | 
|  | cleanup, !dbg !116 | 
|  | %3 = extractvalue { i8*, i32 } %2, 0, !dbg !116 | 
|  | store i8* %3, i8** %exn.slot, !dbg !116 | 
|  | %4 = extractvalue { i8*, i32 } %2, 1, !dbg !116 | 
|  | store i32 %4, i32* %ehselector.slot, !dbg !116 | 
|  | invoke void @_ZN1AD2Ev(%class.A* %temp.lvalue) | 
|  | to label %invoke.cont1 unwind label %terminate.lpad, !dbg !116 | 
|  |  | 
|  | invoke.cont1:                                     ; preds = %lpad | 
|  | br label %eh.resume, !dbg !117 | 
|  |  | 
|  | eh.resume:                                        ; preds = %invoke.cont1 | 
|  | %exn = load i8*, i8** %exn.slot, !dbg !119 | 
|  | %sel = load i32, i32* %ehselector.slot, !dbg !119 | 
|  | %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn, 0, !dbg !119 | 
|  | %lpad.val2 = insertvalue { i8*, i32 } %lpad.val, i32 %sel, 1, !dbg !119 | 
|  | resume { i8*, i32 } %lpad.val2, !dbg !119 | 
|  |  | 
|  | terminate.lpad:                                   ; preds = %lpad | 
|  | %5 = landingpad { i8*, i32 } | 
|  | catch i8* null, !dbg !121 | 
|  | %6 = extractvalue { i8*, i32 } %5, 0, !dbg !121 | 
|  | call void @__clang_call_terminate(i8* %6) #5, !dbg !121 | 
|  | unreachable, !dbg !121 | 
|  | } | 
|  |  | 
|  | ; Function Attrs: nounwind uwtable | 
|  | define linkonce_odr void @_ZN1BC2Ev(%class.B* %this) unnamed_addr #0 align 2 !dbg !62 { | 
|  | entry: | 
|  | %this.addr = alloca %class.B*, align 8 | 
|  | store %class.B* %this, %class.B** %this.addr, align 8 | 
|  | call void @llvm.dbg.declare(metadata %class.B** %this.addr, metadata !123, metadata !DIExpression()), !dbg !124 | 
|  | %this1 = load %class.B*, %class.B** %this.addr | 
|  | ret void, !dbg !125 | 
|  | } | 
|  |  | 
|  | declare i32 @__gxx_personality_v0(...) | 
|  |  | 
|  | ; Function Attrs: noinline noreturn nounwind | 
|  | define linkonce_odr hidden void @__clang_call_terminate(i8*) #3 { | 
|  | %2 = call i8* @__cxa_begin_catch(i8* %0) #6 | 
|  | call void @_ZSt9terminatev() #5 | 
|  | unreachable | 
|  | } | 
|  |  | 
|  | declare i8* @__cxa_begin_catch(i8*) | 
|  |  | 
|  | declare void @_ZSt9terminatev() | 
|  |  | 
|  | ; Function Attrs: uwtable | 
|  | define linkonce_odr void @_ZN1AD0Ev(%class.A* %this) unnamed_addr #2 align 2 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) !dbg !61 { | 
|  | entry: | 
|  | %this.addr = alloca %class.A*, align 8 | 
|  | %exn.slot = alloca i8* | 
|  | %ehselector.slot = alloca i32 | 
|  | store %class.A* %this, %class.A** %this.addr, align 8 | 
|  | call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !126, metadata !DIExpression()), !dbg !127 | 
|  | %this1 = load %class.A*, %class.A** %this.addr | 
|  | invoke void @_ZN1AD2Ev(%class.A* %this1) | 
|  | to label %invoke.cont unwind label %lpad, !dbg !128 | 
|  |  | 
|  | invoke.cont:                                      ; preds = %entry | 
|  | %0 = bitcast %class.A* %this1 to i8*, !dbg !129 | 
|  | call void @_ZdlPv(i8* %0) #7, !dbg !129 | 
|  | ret void, !dbg !129 | 
|  |  | 
|  | lpad:                                             ; preds = %entry | 
|  | %1 = landingpad { i8*, i32 } | 
|  | cleanup, !dbg !131 | 
|  | %2 = extractvalue { i8*, i32 } %1, 0, !dbg !131 | 
|  | store i8* %2, i8** %exn.slot, !dbg !131 | 
|  | %3 = extractvalue { i8*, i32 } %1, 1, !dbg !131 | 
|  | store i32 %3, i32* %ehselector.slot, !dbg !131 | 
|  | %4 = bitcast %class.A* %this1 to i8*, !dbg !131 | 
|  | call void @_ZdlPv(i8* %4) #7, !dbg !131 | 
|  | br label %eh.resume, !dbg !131 | 
|  |  | 
|  | eh.resume:                                        ; preds = %lpad | 
|  | %exn = load i8*, i8** %exn.slot, !dbg !133 | 
|  | %sel = load i32, i32* %ehselector.slot, !dbg !133 | 
|  | %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn, 0, !dbg !133 | 
|  | %lpad.val2 = insertvalue { i8*, i32 } %lpad.val, i32 %sel, 1, !dbg !133 | 
|  | resume { i8*, i32 } %lpad.val2, !dbg !133 | 
|  | } | 
|  |  | 
|  | ; Function Attrs: nobuiltin nounwind | 
|  | declare void @_ZdlPv(i8*) #4 | 
|  |  | 
|  | attributes #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" } | 
|  | attributes #1 = { nounwind readnone } | 
|  | attributes #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" } | 
|  | attributes #3 = { noinline noreturn nounwind } | 
|  | attributes #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" } | 
|  | attributes #5 = { noreturn nounwind } | 
|  | attributes #6 = { nounwind } | 
|  | attributes #7 = { builtin nounwind } | 
|  |  | 
|  | !llvm.dbg.cu = !{!0} | 
|  | !llvm.module.flags = !{!64, !65} | 
|  | !llvm.ident = !{!66} | 
|  |  | 
|  | !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 (trunk 203283) (llvm/trunk 203307)", isOptimized: false, splitDebugFilename: "sret.dwo", emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !2) | 
|  | !1 = !DIFile(filename: "sret.cpp", directory: "/usr/local/google/home/echristo/tmp") | 
|  | !2 = !{} | 
|  | !3 = !{!4, !37} | 
|  | !4 = !DICompositeType(tag: DW_TAG_class_type, name: "A", line: 1, size: 128, align: 64, file: !1, elements: !5, vtableHolder: !4, identifier: "_ZTS1A") | 
|  | !5 = !{!6, !13, !14, !19, !25, !29, !33} | 
|  | !6 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$A", size: 64, flags: DIFlagArtificial, file: !1, scope: !7, baseType: !8) | 
|  | !7 = !DIFile(filename: "sret.cpp", directory: "/usr/local/google/home/echristo/tmp") | 
|  | !8 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !9) | 
|  | !9 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", size: 64, baseType: !10) | 
|  | !10 = !DISubroutineType(types: !11) | 
|  | !11 = !{!12} | 
|  | !12 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) | 
|  | !13 = !DIDerivedType(tag: DW_TAG_member, name: "m_int", line: 13, size: 32, align: 32, offset: 64, flags: DIFlagProtected, file: !1, scope: !4, baseType: !12) | 
|  | !14 = !DISubprogram(name: "A", line: 4, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 4, file: !1, scope: !4, type: !15) | 
|  | !15 = !DISubroutineType(types: !16) | 
|  | !16 = !{null, !17, !12} | 
|  | !17 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !4) | 
|  | !19 = !DISubprogram(name: "A", line: 5, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 5, file: !1, scope: !4, type: !20) | 
|  | !20 = !DISubroutineType(types: !21) | 
|  | !21 = !{null, !17, !22} | 
|  | !22 = !DIDerivedType(tag: DW_TAG_reference_type, size: 64, align: 64, baseType: !23) | 
|  | !23 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !4) | 
|  | !25 = !DISubprogram(name: "operator=", linkageName: "_ZN1AaSERKS_", line: 7, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 7, file: !1, scope: !4, type: !26) | 
|  | !26 = !DISubroutineType(types: !27) | 
|  | !27 = !{!22, !17, !22} | 
|  | !29 = !DISubprogram(name: "~A", line: 8, isLocal: false, isDefinition: false, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 8, file: !1, scope: !4, type: !30, containingType: !4) | 
|  | !30 = !DISubroutineType(types: !31) | 
|  | !31 = !{null, !17} | 
|  | !33 = !DISubprogram(name: "get_int", linkageName: "_ZN1A7get_intEv", line: 10, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 10, file: !1, scope: !4, type: !34) | 
|  | !34 = !DISubroutineType(types: !35) | 
|  | !35 = !{!12, !17} | 
|  | !37 = !DICompositeType(tag: DW_TAG_class_type, name: "B", line: 38, size: 8, align: 8, file: !1, elements: !38, identifier: "_ZTS1B") | 
|  | !38 = !{!39, !44} | 
|  | !39 = !DISubprogram(name: "B", line: 41, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 41, file: !1, scope: !37, type: !40) | 
|  | !40 = !DISubroutineType(types: !41) | 
|  | !41 = !{null, !42} | 
|  | !42 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !37) | 
|  | !44 = !DISubprogram(name: "AInstance", linkageName: "_ZN1B9AInstanceEv", line: 43, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 43, file: !1, scope: !37, type: !45) | 
|  | !45 = !DISubroutineType(types: !46) | 
|  | !46 = !{!4, !42} | 
|  | !49 = distinct !DISubprogram(name: "A", linkageName: "_ZN1AC2Ei", line: 16, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 18, file: !1, scope: !4, type: !15, declaration: !14, retainedNodes: !2) | 
|  | !50 = distinct !DISubprogram(name: "A", linkageName: "_ZN1AC2ERKS_", line: 21, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 23, file: !1, scope: !4, type: !20, declaration: !19, retainedNodes: !2) | 
|  | !51 = distinct !DISubprogram(name: "operator=", linkageName: "_ZN1AaSERKS_", line: 27, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 28, file: !1, scope: !4, type: !26, declaration: !25, retainedNodes: !2) | 
|  | !52 = distinct !DISubprogram(name: "get_int", linkageName: "_ZN1A7get_intEv", line: 33, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 34, file: !1, scope: !4, type: !34, declaration: !33, retainedNodes: !2) | 
|  | !53 = distinct !DISubprogram(name: "AInstance", linkageName: "_ZN1B9AInstanceEv", line: 47, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 48, file: !1, scope: !37, type: !45, declaration: !44, retainedNodes: !2) | 
|  | !54 = distinct !DISubprogram(name: "main", line: 53, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 54, file: !1, scope: !7, type: !55, retainedNodes: !2) | 
|  | !55 = !DISubroutineType(types: !56) | 
|  | !56 = !{!12, !12, !57} | 
|  | !57 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !58) | 
|  | !58 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !59) | 
|  | !59 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !60) | 
|  | !60 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char) | 
|  | !61 = distinct !DISubprogram(name: "~A", linkageName: "_ZN1AD0Ev", line: 8, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 8, file: !1, scope: !4, type: !30, declaration: !29, retainedNodes: !2) | 
|  | !62 = distinct !DISubprogram(name: "B", linkageName: "_ZN1BC2Ev", line: 41, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 41, file: !1, scope: !37, type: !40, declaration: !39, retainedNodes: !2) | 
|  | !63 = distinct !DISubprogram(name: "~A", linkageName: "_ZN1AD2Ev", line: 8, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 8, file: !1, scope: !4, type: !30, declaration: !29, retainedNodes: !2) | 
|  | !64 = !{i32 2, !"Dwarf Version", i32 4} | 
|  | !65 = !{i32 1, !"Debug Info Version", i32 3} | 
|  | !66 = !{!"clang version 3.5.0 (trunk 203283) (llvm/trunk 203307)"} | 
|  | !67 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !49, type: !68) | 
|  | !68 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !4) | 
|  | !69 = !DILocation(line: 0, scope: !49) | 
|  | !70 = !DILocalVariable(name: "i", line: 16, arg: 2, scope: !49, file: !7, type: !12) | 
|  | !71 = !DILocation(line: 16, scope: !49) | 
|  | !72 = !DILocation(line: 18, scope: !49) | 
|  | !73 = !DILocation(line: 19, scope: !49) | 
|  | !74 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !50, type: !68) | 
|  | !75 = !DILocation(line: 0, scope: !50) | 
|  | !76 = !DILocalVariable(name: "rhs", line: 21, arg: 2, scope: !50, file: !7, type: !22) | 
|  | !77 = !DILocation(line: 21, scope: !50) | 
|  | !78 = !DILocation(line: 23, scope: !50) | 
|  | !79 = !DILocation(line: 24, scope: !50) | 
|  | !80 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !51, type: !68) | 
|  | !81 = !DILocation(line: 0, scope: !51) | 
|  | !82 = !DILocalVariable(name: "rhs", line: 27, arg: 2, scope: !51, file: !7, type: !22) | 
|  | !83 = !DILocation(line: 27, scope: !51) | 
|  | !84 = !DILocation(line: 29, scope: !51) | 
|  | !85 = !DILocation(line: 30, scope: !51) | 
|  | !86 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !52, type: !68) | 
|  | !87 = !DILocation(line: 0, scope: !52) | 
|  | !88 = !DILocation(line: 35, scope: !52) | 
|  | !89 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !53, type: !90) | 
|  | !90 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !37) | 
|  | !91 = !DILocation(line: 0, scope: !53) | 
|  | !92 = !DILocation(line: 49, scope: !53) | 
|  | !93 = !DILocalVariable(name: "a", line: 49, scope: !53, file: !7, type: !4) | 
|  | !94 = !DILocation(line: 50, scope: !53) | 
|  | !95 = !DILocation(line: 51, scope: !53) | 
|  | !96 = !DILocation(line: 51, scope: !97) | 
|  | !97 = distinct !DILexicalBlock(line: 51, column: 0, file: !1, scope: !53) | 
|  | !98 = !DILocation(line: 51, scope: !99) | 
|  | !99 = distinct !DILexicalBlock(line: 51, column: 0, file: !1, scope: !100) | 
|  | !100 = distinct !DILexicalBlock(line: 51, column: 0, file: !1, scope: !53) | 
|  | !101 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !63, type: !68) | 
|  | !102 = !DILocation(line: 0, scope: !63) | 
|  | !103 = !DILocation(line: 8, scope: !63) | 
|  | !104 = !DILocalVariable(name: "argc", line: 53, arg: 1, scope: !54, file: !7, type: !12) | 
|  | !105 = !DILocation(line: 53, scope: !54) | 
|  | !106 = !DILocalVariable(name: "argv", line: 53, arg: 2, scope: !54, file: !7, type: !57) | 
|  | !107 = !DILocalVariable(name: "b", line: 55, scope: !54, file: !7, type: !37) | 
|  | !108 = !DILocation(line: 55, scope: !54) | 
|  | !109 = !DILocalVariable(name: "return_val", line: 56, scope: !54, file: !7, type: !12) | 
|  | !110 = !DILocation(line: 56, scope: !54) | 
|  | !111 = !DILocation(line: 56, scope: !112) | 
|  | !112 = distinct !DILexicalBlock(line: 56, column: 0, file: !1, scope: !54) | 
|  | !113 = !DILocalVariable(name: "a", line: 58, scope: !54, file: !7, type: !4) | 
|  | !114 = !DILocation(line: 58, scope: !54) | 
|  | !115 = !DILocation(line: 59, scope: !54) | 
|  | !116 = !DILocation(line: 60, scope: !54) | 
|  | !117 = !DILocation(line: 60, scope: !118) | 
|  | !118 = distinct !DILexicalBlock(line: 60, column: 0, file: !1, scope: !54) | 
|  | !119 = !DILocation(line: 60, scope: !120) | 
|  | !120 = distinct !DILexicalBlock(line: 60, column: 0, file: !1, scope: !54) | 
|  | !121 = !DILocation(line: 60, scope: !122) | 
|  | !122 = distinct !DILexicalBlock(line: 60, column: 0, file: !1, scope: !54) | 
|  | !123 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !62, type: !90) | 
|  | !124 = !DILocation(line: 0, scope: !62) | 
|  | !125 = !DILocation(line: 41, scope: !62) | 
|  | !126 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !61, type: !68) | 
|  | !127 = !DILocation(line: 0, scope: !61) | 
|  | !128 = !DILocation(line: 8, scope: !61) | 
|  | !129 = !DILocation(line: 8, scope: !130) | 
|  | !130 = distinct !DILexicalBlock(line: 8, column: 0, file: !1, scope: !61) | 
|  | !131 = !DILocation(line: 8, scope: !132) | 
|  | !132 = distinct !DILexicalBlock(line: 8, column: 0, file: !1, scope: !61) | 
|  | !133 = !DILocation(line: 8, scope: !134) | 
|  | !134 = distinct !DILexicalBlock(line: 8, column: 0, file: !1, scope: !61) |