llvm-6502/test/DebugInfo/X86/sret.ll
Adrian Prantl e240cc0b4b Remove support for DIVariable's FlagIndirectVariable and expect
frontends to use a DIExpression with a DW_OP_deref instead.

This is not only a much more natural place for this informationl; there
is also a technical reason: The FlagIndirectVariable is used to mark a
variable that is turned into a reference by virtue of the calling
convention; this happens for example to aggregate return values.
The inliner, for example, may actually need to undo this indirection to
correctly represent the value in its new context. This is impossible to
implement because the DIVariable can't be safely modified. We can however
safely construct a new DIExpression on the fly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226476 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-19 17:57:29 +00:00

394 lines
24 KiB
LLVM

; RUN: llc -split-dwarf=Enable -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t
; RUN: llvm-dwarfdump -debug-dump=all %t | FileCheck %s
; Based on the debuginfo-tests/sret.cpp code.
; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x51ac5644b1937aa1)
; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x51ac5644b1937aa1)
%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** @_ZTVN10__cxxabiv117__class_type_infoE, i64 2) to i8*), i8* getelementptr inbounds ([3 x i8]* @_ZTS1A, i32 0, i32 0) }
@_ZN1AC1Ei = alias void (%class.A*, i32)* @_ZN1AC2Ei
@_ZN1AC1ERKS_ = alias void (%class.A*, %class.A*)* @_ZN1AC2ERKS_
; Function Attrs: nounwind uwtable
define void @_ZN1AC2Ei(%class.A* %this, i32 %i) unnamed_addr #0 align 2 {
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 !{!"0x102"}), !dbg !69
store i32 %i, i32* %i.addr, align 4
call void @llvm.dbg.declare(metadata i32* %i.addr, metadata !70, metadata !{!"0x102"}), !dbg !71
%this1 = load %class.A** %this.addr
%0 = bitcast %class.A* %this1 to i8***, !dbg !72
store i8** getelementptr inbounds ([4 x i8*]* @_ZTV1A, i64 0, i64 2), i8*** %0, !dbg !72
%m_int = getelementptr inbounds %class.A* %this1, i32 0, i32 1, !dbg !72
%1 = load 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 {
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 !{!"0x102"}), !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 !{!"0x102"}), !dbg !77
%this1 = load %class.A** %this.addr
%0 = bitcast %class.A* %this1 to i8***, !dbg !78
store i8** getelementptr inbounds ([4 x i8*]* @_ZTV1A, i64 0, i64 2), i8*** %0, !dbg !78
%m_int = getelementptr inbounds %class.A* %this1, i32 0, i32 1, !dbg !78
%1 = load %class.A** %rhs.addr, align 8, !dbg !78
%m_int2 = getelementptr inbounds %class.A* %1, i32 0, i32 1, !dbg !78
%2 = load 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 {
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 !{!"0x102"}), !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 !{!"0x102"}), !dbg !83
%this1 = load %class.A** %this.addr
%0 = load %class.A** %rhs.addr, align 8, !dbg !84
%m_int = getelementptr inbounds %class.A* %0, i32 0, i32 1, !dbg !84
%1 = load i32* %m_int, align 4, !dbg !84
%m_int2 = getelementptr inbounds %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 {
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 !{!"0x102"}), !dbg !87
%this1 = load %class.A** %this.addr
%m_int = getelementptr inbounds %class.A* %this1, i32 0, i32 1, !dbg !88
%0 = load 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 {
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 !{!"0x102"}), !dbg !91
%this1 = load %class.B** %this.addr
store i1 false, i1* %nrvo, !dbg !92
call void @llvm.dbg.declare(metadata %class.A* %agg.result, metadata !93, metadata !{!"0x102\006"}), !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* %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 {
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 !{!"0x102"}), !dbg !102
%this1 = load %class.A** %this.addr
ret void, !dbg !103
}
; Function Attrs: uwtable
define i32 @main(i32 %argc, i8** %argv) #2 {
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 !{!"0x102"}), !dbg !105
store i8** %argv, i8*** %argv.addr, align 8
call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !106, metadata !{!"0x102"}), !dbg !105
call void @llvm.dbg.declare(metadata %class.B* %b, metadata !107, metadata !{!"0x102"}), !dbg !108
call void @_ZN1BC2Ev(%class.B* %b), !dbg !108
call void @llvm.dbg.declare(metadata i32* %return_val, metadata !109, metadata !{!"0x102"}), !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 !{!"0x102"}), !dbg !114
call void @_ZN1B9AInstanceEv(%class.A* sret %a, %class.B* %b), !dbg !114
%0 = load 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* %retval, !dbg !116
ret i32 %1, !dbg !116
lpad: ; preds = %entry
%2 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
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** %exn.slot, !dbg !119
%sel = load 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 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
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 {
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 !{!"0x102"}), !dbg !124
%this1 = load %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 {
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 !{!"0x102"}), !dbg !127
%this1 = load %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 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
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** %exn.slot, !dbg !133
%sel = load 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 = !{!"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]
!1 = !{!"sret.cpp", !"/usr/local/google/home/echristo/tmp"}
!2 = !{}
!3 = !{!4, !37}
!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 ]
!5 = !{!6, !13, !14, !19, !25, !29, !33}
!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 ]
!7 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/tmp/sret.cpp]
!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]
!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 ]
!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 ]
!11 = !{!12}
!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]
!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]
!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]
!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 ]
!16 = !{null, !17, !12}
!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]
!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]
!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 ]
!21 = !{null, !17, !22}
!22 = !{!"0x10\00\000\000\000\000\000", null, null, !23} ; [ DW_TAG_reference_type ] [line 0, size 0, align 0, offset 0] [from ]
!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]
!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=]
!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 ]
!27 = !{!22, !17, !22}
!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]
!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 ]
!31 = !{null, !17}
!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]
!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 ]
!35 = !{!12, !17}
!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 ]
!38 = !{!39, !44}
!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]
!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 ]
!41 = !{null, !42}
!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]
!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]
!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 ]
!46 = !{!4, !42}
!48 = !{!49, !50, !51, !52, !53, !54, !61, !62, !63}
!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]
!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]
!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=]
!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]
!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]
!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]
!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 ]
!56 = !{!12, !12, !57}
!57 = !{!"0xf\00\000\0064\0064\000\000", null, null, !58} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
!58 = !{!"0xf\00\000\0064\0064\000\000", null, null, !59} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
!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]
!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]
!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]
!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]
!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]
!64 = !{i32 2, !"Dwarf Version", i32 4}
!65 = !{i32 1, !"Debug Info Version", i32 2}
!66 = !{!"clang version 3.5.0 (trunk 203283) (llvm/trunk 203307)"}
!67 = !{!"0x101\00this\0016777216\001088", !49, null, !68} ; [ DW_TAG_arg_variable ] [this] [line 0]
!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]
!69 = !MDLocation(line: 0, scope: !49)
!70 = !{!"0x101\00i\0033554448\000", !49, !7, !12} ; [ DW_TAG_arg_variable ] [i] [line 16]
!71 = !MDLocation(line: 16, scope: !49)
!72 = !MDLocation(line: 18, scope: !49)
!73 = !MDLocation(line: 19, scope: !49)
!74 = !{!"0x101\00this\0016777216\001088", !50, null, !68} ; [ DW_TAG_arg_variable ] [this] [line 0]
!75 = !MDLocation(line: 0, scope: !50)
!76 = !{!"0x101\00rhs\0033554453\000", !50, !7, !22} ; [ DW_TAG_arg_variable ] [rhs] [line 21]
!77 = !MDLocation(line: 21, scope: !50)
!78 = !MDLocation(line: 23, scope: !50)
!79 = !MDLocation(line: 24, scope: !50)
!80 = !{!"0x101\00this\0016777216\001088", !51, null, !68} ; [ DW_TAG_arg_variable ] [this] [line 0]
!81 = !MDLocation(line: 0, scope: !51)
!82 = !{!"0x101\00rhs\0033554459\000", !51, !7, !22} ; [ DW_TAG_arg_variable ] [rhs] [line 27]
!83 = !MDLocation(line: 27, scope: !51)
!84 = !MDLocation(line: 29, scope: !51)
!85 = !MDLocation(line: 30, scope: !51)
!86 = !{!"0x101\00this\0016777216\001088", !52, null, !68} ; [ DW_TAG_arg_variable ] [this] [line 0]
!87 = !MDLocation(line: 0, scope: !52)
!88 = !MDLocation(line: 35, scope: !52)
!89 = !{!"0x101\00this\0016777216\001088", !53, null, !90} ; [ DW_TAG_arg_variable ] [this] [line 0]
!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]
!91 = !MDLocation(line: 0, scope: !53)
!92 = !MDLocation(line: 49, scope: !53)
!93 = !{!"0x100\00a\0049\000", !53, !7, !4} ; [ DW_TAG_auto_variable ] [a] [line 49]
!94 = !MDLocation(line: 50, scope: !53)
!95 = !MDLocation(line: 51, scope: !53)
!96 = !MDLocation(line: 51, scope: !97)
!97 = !{!"0xb\0051\000\002", !1, !53} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
!98 = !MDLocation(line: 51, scope: !99)
!99 = !{!"0xb\0051\000\003", !1, !100} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
!100 = !{!"0xb\0051\000\001", !1, !53} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
!101 = !{!"0x101\00this\0016777216\001088", !63, null, !68} ; [ DW_TAG_arg_variable ] [this] [line 0]
!102 = !MDLocation(line: 0, scope: !63)
!103 = !MDLocation(line: 8, scope: !63)
!104 = !{!"0x101\00argc\0016777269\000", !54, !7, !12} ; [ DW_TAG_arg_variable ] [argc] [line 53]
!105 = !MDLocation(line: 53, scope: !54)
!106 = !{!"0x101\00argv\0033554485\000", !54, !7, !57} ; [ DW_TAG_arg_variable ] [argv] [line 53]
!107 = !{!"0x100\00b\0055\000", !54, !7, !37} ; [ DW_TAG_auto_variable ] [b] [line 55]
!108 = !MDLocation(line: 55, scope: !54)
!109 = !{!"0x100\00return_val\0056\000", !54, !7, !12} ; [ DW_TAG_auto_variable ] [return_val] [line 56]
!110 = !MDLocation(line: 56, scope: !54)
!111 = !MDLocation(line: 56, scope: !112)
!112 = !{!"0xb\0056\000\001", !1, !54} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
!113 = !{!"0x100\00a\0058\000", !54, !7, !4} ; [ DW_TAG_auto_variable ] [a] [line 58]
!114 = !MDLocation(line: 58, scope: !54)
!115 = !MDLocation(line: 59, scope: !54)
!116 = !MDLocation(line: 60, scope: !54)
!117 = !MDLocation(line: 60, scope: !118)
!118 = !{!"0xb\0060\000\001", !1, !54} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
!119 = !MDLocation(line: 60, scope: !120)
!120 = !{!"0xb\0060\000\003", !1, !54} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
!121 = !MDLocation(line: 60, scope: !122)
!122 = !{!"0xb\0060\000\002", !1, !54} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
!123 = !{!"0x101\00this\0016777216\001088", !62, null, !90} ; [ DW_TAG_arg_variable ] [this] [line 0]
!124 = !MDLocation(line: 0, scope: !62)
!125 = !MDLocation(line: 41, scope: !62)
!126 = !{!"0x101\00this\0016777216\001088", !61, null, !68} ; [ DW_TAG_arg_variable ] [this] [line 0]
!127 = !MDLocation(line: 0, scope: !61)
!128 = !MDLocation(line: 8, scope: !61)
!129 = !MDLocation(line: 8, scope: !130)
!130 = !{!"0xb\008\000\001", !1, !61} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
!131 = !MDLocation(line: 8, scope: !132)
!132 = !{!"0xb\008\000\002", !1, !61} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]
!133 = !MDLocation(line: 8, scope: !134)
!134 = !{!"0xb\008\000\003", !1, !61} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/sret.cpp]