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llvm-mirror/test/DebugInfo/COFF/thunk.ll
Reid Kleckner 9569e05324 [codeview] Align symbol records to save 441MB during linking clang.pdb
In PDBs, symbol records must be aligned to four bytes. However, in the
object file, symbol records may not be aligned. MSVC does not pad out
symbol records to make sure they are aligned. That means the linker has
to do extra work to insert the padding. Currently, LLD calculates the
required space with alignment, and copies each record one at a time
while padding them out to the correct size. It has a fast path that
avoids this copy when the records are already aligned.

This change fixes a bug in that codepath so that the copy is actually
saved, and tweaks LLVM's symbol record emission to align symbol records.
Here's how things compare when doing a plain clang Release+PDB build:
- objs are 0.65% bigger (negligible)
- link is 3.3% faster (negligible)
- saves allocating 441MB
- new LLD high water mark is ~1.05GB

llvm-svn: 349431
2018-12-18 01:14:05 +00:00

589 lines
37 KiB
LLVM

; RUN: llc < %s -filetype=obj | llvm-readobj - -codeview | FileCheck %s
; RUN: llc < %s | FileCheck %s --check-prefix=ASM
; RUN: opt -S -debugger-tune=lldb %s | FileCheck -check-prefix=OPT %s
;
; -- "thunk.cpp" begin --------------------------------------------------------
; class A { public: virtual bool MyMethod() { return true; } };
; class B { public: virtual bool MyMethod() { return true; } };
; class C : public virtual A, public virtual B {
; public:
; virtual bool MyMethod() { return true; }
; };
;
; int main()
; {
; A* a = new C();
; B* b = new C();
; C* c = new C();
; a->MyMethod();
; b->MyMethod();
; c->MyMethod();
; bool (A::*mp)() = &A::MyMethod;
; return 0;
; }
; -- "thunk.cpp" end ----------------------------------------------------------
;
; Build command:
; $ clang -S -emit-llvm -g -gcodeview thunk.cpp
;
; CHECK: Thunk32Sym {
; CHECK-NEXT: Kind: S_THUNK32 ({{.*}})
; CHECK-NEXT: Name: {{.*_9A.*}}
; CHECK-NEXT: Parent: 0
; CHECK-NEXT: End: 0
; CHECK-NEXT: Next: 0
; CHECK-NEXT: Off: 0
; CHECK-NEXT: Seg: 0
; CHECK-NEXT: Len: {{[0-9]+}}
; CHECK-NEXT: Ordinal: Standard (0x0)
; CHECK-NEXT: }
; CHECK-NEXT: ProcEnd {
; CHECK-NEXT: Kind: S_PROC_ID_END ({{.*}})
; CHECK-NEXT: }
;
; CHECK: Thunk32Sym {
; CHECK-NEXT: Kind: S_THUNK32 ({{.*}})
; CHECK-NEXT: Name: {{.*MyMethod.*C.*}}
; CHECK-NEXT: Parent: 0
; CHECK-NEXT: End: 0
; CHECK-NEXT: Next: 0
; CHECK-NEXT: Off: 0
; CHECK-NEXT: Seg: 0
; CHECK-NEXT: Len: {{[0-9]+}}
; CHECK-NEXT: Ordinal: Standard (0x0)
; CHECK-NEXT: }
; CHECK-NEXT: ProcEnd {
; CHECK-NEXT: Kind: S_PROC_ID_END ({{.*}})
; CHECK-NEXT: }
; ASM: .long 241 # Symbol subsection for [[NAME1:.*_9A.*]]
; ASM-NEXT: .long {{.*}} # Subsection size
; ASM-NEXT: {{L.*}}:
; ASM-NEXT: .short [[END1:.?L.*]]-[[BEGIN1:.?L.*]] # Record length
; ASM-NEXT: [[BEGIN1]]:
; ASM-NEXT: .short 4354 # Record kind: S_THUNK32
; ASM-NEXT: .long 0 # PtrParent
; ASM-NEXT: .long 0 # PtrEnd
; ASM-NEXT: .long 0 # PtrNext
; ASM-NEXT: .secrel32 "[[NAME1]]" # Thunk section relative address
; ASM-NEXT: .secidx "[[NAME1]]" # Thunk section index
; ASM-NEXT: .short Lfunc_end{{.*}}-"[[NAME1]]" # Code size
; ASM-NEXT: .byte 0 # Ordinal
; ASM-NEXT: .asciz "[[NAME1]]" # Function name
; ASM-NEXT: .p2align 2
; ASM-NEXT: [[END1]]:
; ASM-NEXT: .short 2 # Record length
; ASM-NEXT: .short 4431 # Record kind: S_PROC_ID_END
;
; ASM: .long 241 # Symbol subsection for [[NAME2:.*MyMethod.*C.*]]
; ASM-NEXT: .long {{.*}} # Subsection size
; ASM-NEXT: {{L.*}}:
; ASM-NEXT: .short [[END2:.?L.*]]-[[BEGIN2:.?L.*]] # Record length
; ASM-NEXT: [[BEGIN2]]:
; ASM-NEXT: .short 4354 # Record kind: S_THUNK32
; ASM-NEXT: .long 0 # PtrParent
; ASM-NEXT: .long 0 # PtrEnd
; ASM-NEXT: .long 0 # PtrNext
; ASM-NEXT: .secrel32 "[[NAME2]]" # Thunk section relative address
; ASM-NEXT: .secidx "[[NAME2]]" # Thunk section index
; ASM-NEXT: .short Lfunc_end{{.*}}-"[[NAME2]]" # Code size
; ASM-NEXT: .byte 0 # Ordinal
; ASM-NEXT: .asciz "[[NAME2]]" # Function name
; ASM-NEXT: .p2align 2
; ASM-NEXT: [[END2]]:
; ASM-NEXT: .short 2 # Record length
; ASM-NEXT: .short 4431 # Record kind: S_PROC_ID_END
; OPT: DISubprogram(linkageName: "{{.*MyMethod.*C.*}}",{{.*}} line: 5,{{.*}} flags: DIFlagArtificial | DIFlagThunk{{.*}})
; ModuleID = 'thunk.cpp'
source_filename = "thunk.cpp"
target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
target triple = "i686-pc-windows-msvc19.0.24210"
%rtti.CompleteObjectLocator = type { i32, i32, i32, i8*, %rtti.ClassHierarchyDescriptor* }
%rtti.ClassHierarchyDescriptor = type { i32, i32, i32, %rtti.BaseClassDescriptor** }
%rtti.BaseClassDescriptor = type { i8*, i32, i32, i32, i32, i32, %rtti.ClassHierarchyDescriptor* }
%rtti.TypeDescriptor7 = type { i8**, i8*, [8 x i8] }
%class.A = type { i32 (...)** }
%class.B = type { i32 (...)** }
%class.C = type { i32*, %class.A, %class.B }
$"\01??0C@@QAE@XZ" = comdat any
$"\01??_9A@@$BA@AE" = comdat any
$"\01??0A@@QAE@XZ" = comdat any
$"\01??0B@@QAE@XZ" = comdat any
$"\01?MyMethod@C@@UAE_NXZ" = comdat any
$"\01?MyMethod@C@@W3AE_NXZ" = comdat any
$"\01?MyMethod@A@@UAE_NXZ" = comdat any
$"\01?MyMethod@B@@UAE_NXZ" = comdat any
$"\01??_8C@@7B@" = comdat any
$"\01??_7C@@6BA@@@" = comdat largest
$"\01??_7C@@6BB@@@" = comdat largest
$"\01??_R4C@@6BA@@@" = comdat any
$"\01??_R0?AVC@@@8" = comdat any
$"\01??_R3C@@8" = comdat any
$"\01??_R2C@@8" = comdat any
$"\01??_R1A@?0A@EA@C@@8" = comdat any
$"\01??_R1A@A@3FA@A@@8" = comdat any
$"\01??_R0?AVA@@@8" = comdat any
$"\01??_R3A@@8" = comdat any
$"\01??_R2A@@8" = comdat any
$"\01??_R1A@?0A@EA@A@@8" = comdat any
$"\01??_R1A@A@7FA@B@@8" = comdat any
$"\01??_R0?AVB@@@8" = comdat any
$"\01??_R3B@@8" = comdat any
$"\01??_R2B@@8" = comdat any
$"\01??_R1A@?0A@EA@B@@8" = comdat any
$"\01??_R4C@@6BB@@@" = comdat any
$"\01??_7A@@6B@" = comdat largest
$"\01??_R4A@@6B@" = comdat any
$"\01??_7B@@6B@" = comdat largest
$"\01??_R4B@@6B@" = comdat any
@"\01??_8C@@7B@" = linkonce_odr unnamed_addr constant [3 x i32] [i32 0, i32 4, i32 8], comdat
@0 = private unnamed_addr constant { [2 x i8*] } { [2 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4C@@6BA@@@" to i8*), i8* bitcast (i1 (i8*)* @"\01?MyMethod@C@@UAE_NXZ" to i8*)] }, comdat($"\01??_7C@@6BA@@@")
@1 = private unnamed_addr constant { [2 x i8*] } { [2 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4C@@6BB@@@" to i8*), i8* bitcast (i1 (i8*)* @"\01?MyMethod@C@@W3AE_NXZ" to i8*)] }, comdat($"\01??_7C@@6BB@@@")
@"\01??_R4C@@6BA@@@" = linkonce_odr constant %rtti.CompleteObjectLocator { i32 0, i32 4, i32 0, i8* bitcast (%rtti.TypeDescriptor7* @"\01??_R0?AVC@@@8" to i8*), %rtti.ClassHierarchyDescriptor* @"\01??_R3C@@8" }, comdat
@"\01??_7type_info@@6B@" = external constant i8*
@"\01??_R0?AVC@@@8" = linkonce_odr global %rtti.TypeDescriptor7 { i8** @"\01??_7type_info@@6B@", i8* null, [8 x i8] c".?AVC@@\00" }, comdat
@"\01??_R3C@@8" = linkonce_odr constant %rtti.ClassHierarchyDescriptor { i32 0, i32 3, i32 3, %rtti.BaseClassDescriptor** getelementptr inbounds ([4 x %rtti.BaseClassDescriptor*], [4 x %rtti.BaseClassDescriptor*]* @"\01??_R2C@@8", i32 0, i32 0) }, comdat
@"\01??_R2C@@8" = linkonce_odr constant [4 x %rtti.BaseClassDescriptor*] [%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@C@@8", %rtti.BaseClassDescriptor* @"\01??_R1A@A@3FA@A@@8", %rtti.BaseClassDescriptor* @"\01??_R1A@A@7FA@B@@8", %rtti.BaseClassDescriptor* null], comdat
@"\01??_R1A@?0A@EA@C@@8" = linkonce_odr constant %rtti.BaseClassDescriptor { i8* bitcast (%rtti.TypeDescriptor7* @"\01??_R0?AVC@@@8" to i8*), i32 2, i32 0, i32 -1, i32 0, i32 64, %rtti.ClassHierarchyDescriptor* @"\01??_R3C@@8" }, comdat
@"\01??_R1A@A@3FA@A@@8" = linkonce_odr constant %rtti.BaseClassDescriptor { i8* bitcast (%rtti.TypeDescriptor7* @"\01??_R0?AVA@@@8" to i8*), i32 0, i32 0, i32 0, i32 4, i32 80, %rtti.ClassHierarchyDescriptor* @"\01??_R3A@@8" }, comdat
@"\01??_R0?AVA@@@8" = linkonce_odr global %rtti.TypeDescriptor7 { i8** @"\01??_7type_info@@6B@", i8* null, [8 x i8] c".?AVA@@\00" }, comdat
@"\01??_R3A@@8" = linkonce_odr constant %rtti.ClassHierarchyDescriptor { i32 0, i32 0, i32 1, %rtti.BaseClassDescriptor** getelementptr inbounds ([2 x %rtti.BaseClassDescriptor*], [2 x %rtti.BaseClassDescriptor*]* @"\01??_R2A@@8", i32 0, i32 0) }, comdat
@"\01??_R2A@@8" = linkonce_odr constant [2 x %rtti.BaseClassDescriptor*] [%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@A@@8", %rtti.BaseClassDescriptor* null], comdat
@"\01??_R1A@?0A@EA@A@@8" = linkonce_odr constant %rtti.BaseClassDescriptor { i8* bitcast (%rtti.TypeDescriptor7* @"\01??_R0?AVA@@@8" to i8*), i32 0, i32 0, i32 -1, i32 0, i32 64, %rtti.ClassHierarchyDescriptor* @"\01??_R3A@@8" }, comdat
@"\01??_R1A@A@7FA@B@@8" = linkonce_odr constant %rtti.BaseClassDescriptor { i8* bitcast (%rtti.TypeDescriptor7* @"\01??_R0?AVB@@@8" to i8*), i32 0, i32 0, i32 0, i32 8, i32 80, %rtti.ClassHierarchyDescriptor* @"\01??_R3B@@8" }, comdat
@"\01??_R0?AVB@@@8" = linkonce_odr global %rtti.TypeDescriptor7 { i8** @"\01??_7type_info@@6B@", i8* null, [8 x i8] c".?AVB@@\00" }, comdat
@"\01??_R3B@@8" = linkonce_odr constant %rtti.ClassHierarchyDescriptor { i32 0, i32 0, i32 1, %rtti.BaseClassDescriptor** getelementptr inbounds ([2 x %rtti.BaseClassDescriptor*], [2 x %rtti.BaseClassDescriptor*]* @"\01??_R2B@@8", i32 0, i32 0) }, comdat
@"\01??_R2B@@8" = linkonce_odr constant [2 x %rtti.BaseClassDescriptor*] [%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@B@@8", %rtti.BaseClassDescriptor* null], comdat
@"\01??_R1A@?0A@EA@B@@8" = linkonce_odr constant %rtti.BaseClassDescriptor { i8* bitcast (%rtti.TypeDescriptor7* @"\01??_R0?AVB@@@8" to i8*), i32 0, i32 0, i32 -1, i32 0, i32 64, %rtti.ClassHierarchyDescriptor* @"\01??_R3B@@8" }, comdat
@"\01??_R4C@@6BB@@@" = linkonce_odr constant %rtti.CompleteObjectLocator { i32 0, i32 8, i32 0, i8* bitcast (%rtti.TypeDescriptor7* @"\01??_R0?AVC@@@8" to i8*), %rtti.ClassHierarchyDescriptor* @"\01??_R3C@@8" }, comdat
@2 = private unnamed_addr constant { [2 x i8*] } { [2 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4A@@6B@" to i8*), i8* bitcast (i1 (%class.A*)* @"\01?MyMethod@A@@UAE_NXZ" to i8*)] }, comdat($"\01??_7A@@6B@")
@"\01??_R4A@@6B@" = linkonce_odr constant %rtti.CompleteObjectLocator { i32 0, i32 0, i32 0, i8* bitcast (%rtti.TypeDescriptor7* @"\01??_R0?AVA@@@8" to i8*), %rtti.ClassHierarchyDescriptor* @"\01??_R3A@@8" }, comdat
@3 = private unnamed_addr constant { [2 x i8*] } { [2 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4B@@6B@" to i8*), i8* bitcast (i1 (%class.B*)* @"\01?MyMethod@B@@UAE_NXZ" to i8*)] }, comdat($"\01??_7B@@6B@")
@"\01??_R4B@@6B@" = linkonce_odr constant %rtti.CompleteObjectLocator { i32 0, i32 0, i32 0, i8* bitcast (%rtti.TypeDescriptor7* @"\01??_R0?AVB@@@8" to i8*), %rtti.ClassHierarchyDescriptor* @"\01??_R3B@@8" }, comdat
@"\01??_7C@@6BA@@@" = unnamed_addr alias i8*, getelementptr inbounds ({ [2 x i8*] }, { [2 x i8*] }* @0, i32 0, i32 0, i32 1)
@"\01??_7C@@6BB@@@" = unnamed_addr alias i8*, getelementptr inbounds ({ [2 x i8*] }, { [2 x i8*] }* @1, i32 0, i32 0, i32 1)
@"\01??_7A@@6B@" = unnamed_addr alias i8*, getelementptr inbounds ({ [2 x i8*] }, { [2 x i8*] }* @2, i32 0, i32 0, i32 1)
@"\01??_7B@@6B@" = unnamed_addr alias i8*, getelementptr inbounds ({ [2 x i8*] }, { [2 x i8*] }* @3, i32 0, i32 0, i32 1)
; Function Attrs: noinline norecurse optnone
define i32 @main() #0 !dbg !8 {
entry:
%retval = alloca i32, align 4
%a = alloca %class.A*, align 4
%b = alloca %class.B*, align 4
%c = alloca %class.C*, align 4
%mp = alloca i8*, align 4
store i32 0, i32* %retval, align 4
call void @llvm.dbg.declare(metadata %class.A** %a, metadata !12, metadata !DIExpression()), !dbg !24
%call = call i8* @"\01??2@YAPAXI@Z"(i32 12) #7, !dbg !25
%0 = bitcast i8* %call to %class.C*, !dbg !25
%1 = bitcast %class.C* %0 to i8*, !dbg !26
call void @llvm.memset.p0i8.i32(i8* align 8 %1, i8 0, i32 12, i1 false), !dbg !26
%call1 = call x86_thiscallcc %class.C* @"\01??0C@@QAE@XZ"(%class.C* %0, i32 1) #8, !dbg !26
%2 = icmp eq %class.C* %0, null, !dbg !25
br i1 %2, label %cast.end, label %cast.notnull, !dbg !25
cast.notnull: ; preds = %entry
%3 = bitcast %class.C* %0 to i8*, !dbg !25
%vbptr = getelementptr inbounds i8, i8* %3, i32 0, !dbg !25
%4 = bitcast i8* %vbptr to i32**, !dbg !25
%vbtable = load i32*, i32** %4, align 4, !dbg !25
%5 = getelementptr inbounds i32, i32* %vbtable, i32 1, !dbg !25
%vbase_offs = load i32, i32* %5, align 4, !dbg !25
%6 = add nsw i32 0, %vbase_offs, !dbg !25
%7 = bitcast %class.C* %0 to i8*, !dbg !25
%add.ptr = getelementptr inbounds i8, i8* %7, i32 %6, !dbg !25
%8 = bitcast i8* %add.ptr to %class.A*, !dbg !25
br label %cast.end, !dbg !25
cast.end: ; preds = %cast.notnull, %entry
%cast.result = phi %class.A* [ %8, %cast.notnull ], [ null, %entry ], !dbg !25
store %class.A* %cast.result, %class.A** %a, align 4, !dbg !24
call void @llvm.dbg.declare(metadata %class.B** %b, metadata !27, metadata !DIExpression()), !dbg !36
%call2 = call i8* @"\01??2@YAPAXI@Z"(i32 12) #7, !dbg !37
%9 = bitcast i8* %call2 to %class.C*, !dbg !37
%10 = bitcast %class.C* %9 to i8*, !dbg !38
call void @llvm.memset.p0i8.i32(i8* align 8 %10, i8 0, i32 12, i1 false), !dbg !38
%call3 = call x86_thiscallcc %class.C* @"\01??0C@@QAE@XZ"(%class.C* %9, i32 1) #8, !dbg !38
%11 = icmp eq %class.C* %9, null, !dbg !37
br i1 %11, label %cast.end9, label %cast.notnull4, !dbg !37
cast.notnull4: ; preds = %cast.end
%12 = bitcast %class.C* %9 to i8*, !dbg !37
%vbptr5 = getelementptr inbounds i8, i8* %12, i32 0, !dbg !37
%13 = bitcast i8* %vbptr5 to i32**, !dbg !37
%vbtable6 = load i32*, i32** %13, align 4, !dbg !37
%14 = getelementptr inbounds i32, i32* %vbtable6, i32 2, !dbg !37
%vbase_offs7 = load i32, i32* %14, align 4, !dbg !37
%15 = add nsw i32 0, %vbase_offs7, !dbg !37
%16 = bitcast %class.C* %9 to i8*, !dbg !37
%add.ptr8 = getelementptr inbounds i8, i8* %16, i32 %15, !dbg !37
%17 = bitcast i8* %add.ptr8 to %class.B*, !dbg !37
br label %cast.end9, !dbg !37
cast.end9: ; preds = %cast.notnull4, %cast.end
%cast.result10 = phi %class.B* [ %17, %cast.notnull4 ], [ null, %cast.end ], !dbg !37
store %class.B* %cast.result10, %class.B** %b, align 4, !dbg !36
call void @llvm.dbg.declare(metadata %class.C** %c, metadata !39, metadata !DIExpression()), !dbg !49
%call11 = call i8* @"\01??2@YAPAXI@Z"(i32 12) #7, !dbg !50
%18 = bitcast i8* %call11 to %class.C*, !dbg !50
%19 = bitcast %class.C* %18 to i8*, !dbg !51
call void @llvm.memset.p0i8.i32(i8* align 8 %19, i8 0, i32 12, i1 false), !dbg !51
%call12 = call x86_thiscallcc %class.C* @"\01??0C@@QAE@XZ"(%class.C* %18, i32 1) #8, !dbg !51
store %class.C* %18, %class.C** %c, align 4, !dbg !49
%20 = load %class.A*, %class.A** %a, align 4, !dbg !52
%21 = bitcast %class.A* %20 to i1 (%class.A*)***, !dbg !53
%vtable = load i1 (%class.A*)**, i1 (%class.A*)*** %21, align 4, !dbg !53
%vfn = getelementptr inbounds i1 (%class.A*)*, i1 (%class.A*)** %vtable, i64 0, !dbg !53
%22 = load i1 (%class.A*)*, i1 (%class.A*)** %vfn, align 4, !dbg !53
%call13 = call x86_thiscallcc zeroext i1 %22(%class.A* %20), !dbg !53
%23 = load %class.B*, %class.B** %b, align 4, !dbg !54
%24 = bitcast %class.B* %23 to i1 (%class.B*)***, !dbg !55
%vtable14 = load i1 (%class.B*)**, i1 (%class.B*)*** %24, align 4, !dbg !55
%vfn15 = getelementptr inbounds i1 (%class.B*)*, i1 (%class.B*)** %vtable14, i64 0, !dbg !55
%25 = load i1 (%class.B*)*, i1 (%class.B*)** %vfn15, align 4, !dbg !55
%call16 = call x86_thiscallcc zeroext i1 %25(%class.B* %23), !dbg !55
%26 = load %class.C*, %class.C** %c, align 4, !dbg !56
%27 = bitcast %class.C* %26 to i8*, !dbg !57
%vbptr17 = getelementptr inbounds i8, i8* %27, i32 0, !dbg !57
%28 = bitcast i8* %vbptr17 to i32**, !dbg !57
%vbtable18 = load i32*, i32** %28, align 4, !dbg !57
%29 = getelementptr inbounds i32, i32* %vbtable18, i32 1, !dbg !57
%vbase_offs19 = load i32, i32* %29, align 4, !dbg !57
%30 = add nsw i32 0, %vbase_offs19, !dbg !57
%31 = getelementptr inbounds i8, i8* %27, i32 %30, !dbg !57
%32 = bitcast %class.C* %26 to i8*, !dbg !57
%vbptr20 = getelementptr inbounds i8, i8* %32, i32 0, !dbg !57
%33 = bitcast i8* %vbptr20 to i32**, !dbg !57
%vbtable21 = load i32*, i32** %33, align 4, !dbg !57
%34 = getelementptr inbounds i32, i32* %vbtable21, i32 1, !dbg !57
%vbase_offs22 = load i32, i32* %34, align 4, !dbg !57
%35 = add nsw i32 0, %vbase_offs22, !dbg !57
%36 = getelementptr inbounds i8, i8* %32, i32 %35, !dbg !57
%37 = bitcast i8* %36 to i1 (i8*)***, !dbg !57
%vtable23 = load i1 (i8*)**, i1 (i8*)*** %37, align 4, !dbg !57
%vfn24 = getelementptr inbounds i1 (i8*)*, i1 (i8*)** %vtable23, i64 0, !dbg !57
%38 = load i1 (i8*)*, i1 (i8*)** %vfn24, align 4, !dbg !57
%call25 = call x86_thiscallcc zeroext i1 %38(i8* %31), !dbg !57
call void @llvm.dbg.declare(metadata i8** %mp, metadata !58, metadata !DIExpression()), !dbg !60
store i8* bitcast (void (%class.A*, ...)* @"\01??_9A@@$BA@AE" to i8*), i8** %mp, align 4, !dbg !60
ret i32 0, !dbg !61
}
; Function Attrs: nounwind readnone speculatable
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
; Function Attrs: nobuiltin
declare noalias i8* @"\01??2@YAPAXI@Z"(i32) #2
; Function Attrs: argmemonly nounwind
declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i1) #3
; Function Attrs: noinline nounwind optnone
define linkonce_odr x86_thiscallcc %class.C* @"\01??0C@@QAE@XZ"(%class.C* returned %this, i32 %is_most_derived) unnamed_addr #4 comdat align 2 !dbg !62 {
entry:
%retval = alloca %class.C*, align 4
%is_most_derived.addr = alloca i32, align 4
%this.addr = alloca %class.C*, align 4
store i32 %is_most_derived, i32* %is_most_derived.addr, align 4
call void @llvm.dbg.declare(metadata i32* %is_most_derived.addr, metadata !66, metadata !DIExpression()), !dbg !67
store %class.C* %this, %class.C** %this.addr, align 4
call void @llvm.dbg.declare(metadata %class.C** %this.addr, metadata !68, metadata !DIExpression()), !dbg !67
%this1 = load %class.C*, %class.C** %this.addr, align 4
store %class.C* %this1, %class.C** %retval, align 4
%is_most_derived2 = load i32, i32* %is_most_derived.addr, align 4
%is_complete_object = icmp ne i32 %is_most_derived2, 0, !dbg !69
br i1 %is_complete_object, label %ctor.init_vbases, label %ctor.skip_vbases, !dbg !69
ctor.init_vbases: ; preds = %entry
%this.int8 = bitcast %class.C* %this1 to i8*, !dbg !69
%0 = getelementptr inbounds i8, i8* %this.int8, i32 0, !dbg !69
%vbptr.C = bitcast i8* %0 to i32**, !dbg !69
store i32* getelementptr inbounds ([3 x i32], [3 x i32]* @"\01??_8C@@7B@", i32 0, i32 0), i32** %vbptr.C, align 4, !dbg !69
%1 = bitcast %class.C* %this1 to i8*, !dbg !69
%2 = getelementptr inbounds i8, i8* %1, i32 4, !dbg !69
%3 = bitcast i8* %2 to %class.A*, !dbg !69
%call = call x86_thiscallcc %class.A* @"\01??0A@@QAE@XZ"(%class.A* %3) #8, !dbg !69
%4 = bitcast %class.C* %this1 to i8*, !dbg !69
%5 = getelementptr inbounds i8, i8* %4, i32 8, !dbg !69
%6 = bitcast i8* %5 to %class.B*, !dbg !69
%call3 = call x86_thiscallcc %class.B* @"\01??0B@@QAE@XZ"(%class.B* %6) #8, !dbg !69
br label %ctor.skip_vbases, !dbg !69
ctor.skip_vbases: ; preds = %ctor.init_vbases, %entry
%7 = bitcast %class.C* %this1 to i8*, !dbg !69
%vbptr = getelementptr inbounds i8, i8* %7, i32 0, !dbg !69
%8 = bitcast i8* %vbptr to i32**, !dbg !69
%vbtable = load i32*, i32** %8, align 4, !dbg !69
%9 = getelementptr inbounds i32, i32* %vbtable, i32 1, !dbg !69
%vbase_offs = load i32, i32* %9, align 4, !dbg !69
%10 = add nsw i32 0, %vbase_offs, !dbg !69
%11 = bitcast %class.C* %this1 to i8*, !dbg !69
%add.ptr = getelementptr inbounds i8, i8* %11, i32 %10, !dbg !69
%12 = bitcast i8* %add.ptr to i32 (...)***, !dbg !69
store i32 (...)** bitcast (i8** @"\01??_7C@@6BA@@@" to i32 (...)**), i32 (...)*** %12, align 4, !dbg !69
%13 = bitcast %class.C* %this1 to i8*, !dbg !69
%vbptr4 = getelementptr inbounds i8, i8* %13, i32 0, !dbg !69
%14 = bitcast i8* %vbptr4 to i32**, !dbg !69
%vbtable5 = load i32*, i32** %14, align 4, !dbg !69
%15 = getelementptr inbounds i32, i32* %vbtable5, i32 2, !dbg !69
%vbase_offs6 = load i32, i32* %15, align 4, !dbg !69
%16 = add nsw i32 0, %vbase_offs6, !dbg !69
%17 = bitcast %class.C* %this1 to i8*, !dbg !69
%add.ptr7 = getelementptr inbounds i8, i8* %17, i32 %16, !dbg !69
%18 = bitcast i8* %add.ptr7 to i32 (...)***, !dbg !69
store i32 (...)** bitcast (i8** @"\01??_7C@@6BB@@@" to i32 (...)**), i32 (...)*** %18, align 4, !dbg !69
%19 = load %class.C*, %class.C** %retval, align 4, !dbg !69
ret %class.C* %19, !dbg !69
}
; Function Attrs: noinline optnone
define linkonce_odr x86_thiscallcc void @"\01??_9A@@$BA@AE"(%class.A* %this, ...) #5 comdat align 2 !dbg !70 {
entry:
%this.addr = alloca %class.A*, align 4
store %class.A* %this, %class.A** %this.addr, align 4
call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !72, metadata !DIExpression()), !dbg !73
%this1 = load %class.A*, %class.A** %this.addr, align 4
%0 = bitcast %class.A* %this1 to void (%class.A*, ...)***
%vtable = load void (%class.A*, ...)**, void (%class.A*, ...)*** %0, align 4
%vfn = getelementptr inbounds void (%class.A*, ...)*, void (%class.A*, ...)** %vtable, i64 0
%1 = load void (%class.A*, ...)*, void (%class.A*, ...)** %vfn, align 4
musttail call x86_thiscallcc void (%class.A*, ...) %1(%class.A* %this1, ...)
ret void
; No predecessors!
ret void
}
; Function Attrs: noinline nounwind optnone
define linkonce_odr x86_thiscallcc %class.A* @"\01??0A@@QAE@XZ"(%class.A* returned %this) unnamed_addr #4 comdat align 2 !dbg !74 {
entry:
%this.addr = alloca %class.A*, align 4
store %class.A* %this, %class.A** %this.addr, align 4
call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !78, metadata !DIExpression()), !dbg !79
%this1 = load %class.A*, %class.A** %this.addr, align 4
%0 = bitcast %class.A* %this1 to i32 (...)***, !dbg !80
store i32 (...)** bitcast (i8** @"\01??_7A@@6B@" to i32 (...)**), i32 (...)*** %0, align 4, !dbg !80
ret %class.A* %this1, !dbg !80
}
; Function Attrs: noinline nounwind optnone
define linkonce_odr x86_thiscallcc %class.B* @"\01??0B@@QAE@XZ"(%class.B* returned %this) unnamed_addr #4 comdat align 2 !dbg !81 {
entry:
%this.addr = alloca %class.B*, align 4
store %class.B* %this, %class.B** %this.addr, align 4
call void @llvm.dbg.declare(metadata %class.B** %this.addr, metadata !85, metadata !DIExpression()), !dbg !86
%this1 = load %class.B*, %class.B** %this.addr, align 4
%0 = bitcast %class.B* %this1 to i32 (...)***, !dbg !87
store i32 (...)** bitcast (i8** @"\01??_7B@@6B@" to i32 (...)**), i32 (...)*** %0, align 4, !dbg !87
ret %class.B* %this1, !dbg !87
}
; Function Attrs: noinline nounwind optnone
define linkonce_odr x86_thiscallcc zeroext i1 @"\01?MyMethod@C@@UAE_NXZ"(i8* %this.coerce) unnamed_addr #4 comdat align 2 !dbg !88 {
entry:
%this = alloca %class.C*, align 4
%this.addr = alloca %class.C*, align 4
%coerce.val = bitcast i8* %this.coerce to %class.C*
store %class.C* %coerce.val, %class.C** %this, align 4
%this1 = load %class.C*, %class.C** %this, align 4
store %class.C* %this1, %class.C** %this.addr, align 4
call void @llvm.dbg.declare(metadata %class.C** %this.addr, metadata !89, metadata !DIExpression()), !dbg !90
%this2 = load %class.C*, %class.C** %this.addr, align 4
%0 = bitcast %class.C* %this2 to i8*
%1 = getelementptr inbounds i8, i8* %0, i32 -4
%this.adjusted = bitcast i8* %1 to %class.C*
ret i1 true, !dbg !91
}
; Function Attrs: noinline optnone
define linkonce_odr x86_thiscallcc zeroext i1 @"\01?MyMethod@C@@W3AE_NXZ"(i8* %this.coerce) unnamed_addr #6 comdat align 2 !dbg !92 {
entry:
%this = alloca %class.C*, align 4
%this.addr = alloca %class.C*, align 4
%coerce.val = bitcast i8* %this.coerce to %class.C*
store %class.C* %coerce.val, %class.C** %this, align 4
%this1 = load %class.C*, %class.C** %this, align 4
store %class.C* %this1, %class.C** %this.addr, align 4
call void @llvm.dbg.declare(metadata %class.C** %this.addr, metadata !93, metadata !DIExpression()), !dbg !94
%this2 = load %class.C*, %class.C** %this.addr, align 4, !dbg !94
%0 = bitcast %class.C* %this2 to i8*, !dbg !94
%1 = getelementptr i8, i8* %0, i32 -4, !dbg !94
%call = tail call x86_thiscallcc zeroext i1 @"\01?MyMethod@C@@UAE_NXZ"(i8* %1), !dbg !94
ret i1 %call, !dbg !94
}
; Function Attrs: noinline nounwind optnone
define linkonce_odr x86_thiscallcc zeroext i1 @"\01?MyMethod@A@@UAE_NXZ"(%class.A* %this) unnamed_addr #4 comdat align 2 !dbg !95 {
entry:
%this.addr = alloca %class.A*, align 4
store %class.A* %this, %class.A** %this.addr, align 4
call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !96, metadata !DIExpression()), !dbg !97
%this1 = load %class.A*, %class.A** %this.addr, align 4
ret i1 true, !dbg !98
}
; Function Attrs: noinline nounwind optnone
define linkonce_odr x86_thiscallcc zeroext i1 @"\01?MyMethod@B@@UAE_NXZ"(%class.B* %this) unnamed_addr #4 comdat align 2 !dbg !99 {
entry:
%this.addr = alloca %class.B*, align 4
store %class.B* %this, %class.B** %this.addr, align 4
call void @llvm.dbg.declare(metadata %class.B** %this.addr, metadata !100, metadata !DIExpression()), !dbg !101
%this1 = load %class.B*, %class.B** %this.addr, align 4
ret i1 true, !dbg !102
}
attributes #0 = { noinline norecurse optnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind readnone speculatable }
attributes #2 = { nobuiltin "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "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" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #3 = { argmemonly nounwind }
attributes #4 = { noinline nounwind optnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #5 = { noinline optnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "thunk" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #6 = { noinline optnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #7 = { builtin }
attributes #8 = { nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4, !5, !6}
!llvm.ident = !{!7}
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 7.0.0 (trunk)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
!1 = !DIFile(filename: "thunk.cpp", directory: "C:\5Cpath\5Cto", checksumkind: CSK_MD5, checksum: "d4b977fc614313c5a4fbdc980b2f4243")
!2 = !{}
!3 = !{i32 1, !"NumRegisterParameters", i32 0}
!4 = !{i32 2, !"CodeView", i32 1}
!5 = !{i32 2, !"Debug Info Version", i32 3}
!6 = !{i32 1, !"wchar_size", i32 2}
!7 = !{!"clang version 7.0.0 (trunk)"}
!8 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 8, type: !9, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
!9 = !DISubroutineType(types: !10)
!10 = !{!11}
!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!12 = !DILocalVariable(name: "a", scope: !8, file: !1, line: 10, type: !13)
!13 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !14, size: 32)
!14 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "A", file: !1, line: 1, size: 32, flags: DIFlagTypePassByValue, elements: !15, vtableHolder: !14, identifier: ".?AVA@@")
!15 = !{!16, !17, !19}
!16 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", baseType: null, size: 32)
!17 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$A", scope: !1, file: !1, baseType: !18, size: 32, flags: DIFlagArtificial)
!18 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !16, size: 32)
!19 = !DISubprogram(name: "MyMethod", linkageName: "\01?MyMethod@A@@UAE_NXZ", scope: !14, file: !1, line: 1, type: !20, isLocal: false, isDefinition: false, scopeLine: 1, containingType: !14, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0, flags: DIFlagPublic | DIFlagPrototyped | DIFlagIntroducedVirtual, isOptimized: false)
!20 = !DISubroutineType(cc: DW_CC_BORLAND_thiscall, types: !21)
!21 = !{!22, !23}
!22 = !DIBasicType(name: "bool", size: 8, encoding: DW_ATE_boolean)
!23 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !14, size: 32, flags: DIFlagArtificial | DIFlagObjectPointer)
!24 = !DILocation(line: 10, column: 8, scope: !8)
!25 = !DILocation(line: 10, column: 12, scope: !8)
!26 = !DILocation(line: 10, column: 16, scope: !8)
!27 = !DILocalVariable(name: "b", scope: !8, file: !1, line: 11, type: !28)
!28 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !29, size: 32)
!29 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "B", file: !1, line: 2, size: 32, flags: DIFlagTypePassByValue, elements: !30, vtableHolder: !29, identifier: ".?AVB@@")
!30 = !{!16, !31, !32}
!31 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$B", scope: !1, file: !1, baseType: !18, size: 32, flags: DIFlagArtificial)
!32 = !DISubprogram(name: "MyMethod", linkageName: "\01?MyMethod@B@@UAE_NXZ", scope: !29, file: !1, line: 2, type: !33, isLocal: false, isDefinition: false, scopeLine: 2, containingType: !29, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0, flags: DIFlagPublic | DIFlagPrototyped | DIFlagIntroducedVirtual, isOptimized: false)
!33 = !DISubroutineType(cc: DW_CC_BORLAND_thiscall, types: !34)
!34 = !{!22, !35}
!35 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !29, size: 32, flags: DIFlagArtificial | DIFlagObjectPointer)
!36 = !DILocation(line: 11, column: 8, scope: !8)
!37 = !DILocation(line: 11, column: 12, scope: !8)
!38 = !DILocation(line: 11, column: 16, scope: !8)
!39 = !DILocalVariable(name: "c", scope: !8, file: !1, line: 12, type: !40)
!40 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !41, size: 32)
!41 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "C", file: !1, line: 3, size: 96, flags: DIFlagTypePassByValue, elements: !42, vtableHolder: !41, identifier: ".?AVC@@")
!42 = !{!43, !44, !45}
!43 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !41, baseType: !14, offset: 4, flags: DIFlagPublic | DIFlagVirtual)
!44 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !41, baseType: !29, offset: 8, flags: DIFlagPublic | DIFlagVirtual)
!45 = !DISubprogram(name: "MyMethod", linkageName: "\01?MyMethod@C@@UAE_NXZ", scope: !41, file: !1, line: 5, type: !46, isLocal: false, isDefinition: false, scopeLine: 5, containingType: !41, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0, thisAdjustment: 4, flags: DIFlagPublic | DIFlagPrototyped, isOptimized: false)
!46 = !DISubroutineType(cc: DW_CC_BORLAND_thiscall, types: !47)
!47 = !{!22, !48}
!48 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !41, size: 32, flags: DIFlagArtificial | DIFlagObjectPointer)
!49 = !DILocation(line: 12, column: 8, scope: !8)
!50 = !DILocation(line: 12, column: 12, scope: !8)
!51 = !DILocation(line: 12, column: 16, scope: !8)
!52 = !DILocation(line: 13, column: 5, scope: !8)
!53 = !DILocation(line: 13, column: 8, scope: !8)
!54 = !DILocation(line: 14, column: 5, scope: !8)
!55 = !DILocation(line: 14, column: 8, scope: !8)
!56 = !DILocation(line: 15, column: 5, scope: !8)
!57 = !DILocation(line: 15, column: 8, scope: !8)
!58 = !DILocalVariable(name: "mp", scope: !8, file: !1, line: 16, type: !59)
!59 = !DIDerivedType(tag: DW_TAG_ptr_to_member_type, baseType: !20, size: 32, flags: DIFlagSingleInheritance, extraData: !14)
!60 = !DILocation(line: 16, column: 15, scope: !8)
!61 = !DILocation(line: 17, column: 5, scope: !8)
!62 = distinct !DISubprogram(name: "C", linkageName: "\01??0C@@QAE@XZ", scope: !41, file: !1, line: 3, type: !63, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !65, retainedNodes: !2)
!63 = !DISubroutineType(cc: DW_CC_BORLAND_thiscall, types: !64)
!64 = !{null, !48}
!65 = !DISubprogram(name: "C", scope: !41, type: !63, isLocal: false, isDefinition: false, flags: DIFlagPublic | DIFlagArtificial | DIFlagPrototyped, isOptimized: false)
!66 = !DILocalVariable(name: "is_most_derived", arg: 2, scope: !62, type: !11, flags: DIFlagArtificial)
!67 = !DILocation(line: 0, scope: !62)
!68 = !DILocalVariable(name: "this", arg: 1, scope: !62, type: !40, flags: DIFlagArtificial | DIFlagObjectPointer)
!69 = !DILocation(line: 3, column: 7, scope: !62)
!70 = distinct !DISubprogram(linkageName: "\01??_9A@@$BA@AE", scope: !1, file: !1, line: 1, type: !71, isLocal: false, isDefinition: true, flags: DIFlagArtificial | DIFlagThunk, isOptimized: false, unit: !0, retainedNodes: !2)
!71 = !DISubroutineType(types: !2)
!72 = !DILocalVariable(name: "this", arg: 1, scope: !70, type: !13, flags: DIFlagArtificial | DIFlagObjectPointer)
!73 = !DILocation(line: 0, scope: !70)
!74 = distinct !DISubprogram(name: "A", linkageName: "\01??0A@@QAE@XZ", scope: !14, file: !1, line: 1, type: !75, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !77, retainedNodes: !2)
!75 = !DISubroutineType(cc: DW_CC_BORLAND_thiscall, types: !76)
!76 = !{null, !23}
!77 = !DISubprogram(name: "A", scope: !14, type: !75, isLocal: false, isDefinition: false, flags: DIFlagPublic | DIFlagArtificial | DIFlagPrototyped, isOptimized: false)
!78 = !DILocalVariable(name: "this", arg: 1, scope: !74, type: !13, flags: DIFlagArtificial | DIFlagObjectPointer)
!79 = !DILocation(line: 0, scope: !74)
!80 = !DILocation(line: 1, column: 7, scope: !74)
!81 = distinct !DISubprogram(name: "B", linkageName: "\01??0B@@QAE@XZ", scope: !29, file: !1, line: 2, type: !82, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !84, retainedNodes: !2)
!82 = !DISubroutineType(cc: DW_CC_BORLAND_thiscall, types: !83)
!83 = !{null, !35}
!84 = !DISubprogram(name: "B", scope: !29, type: !82, isLocal: false, isDefinition: false, flags: DIFlagPublic | DIFlagArtificial | DIFlagPrototyped, isOptimized: false)
!85 = !DILocalVariable(name: "this", arg: 1, scope: !81, type: !28, flags: DIFlagArtificial | DIFlagObjectPointer)
!86 = !DILocation(line: 0, scope: !81)
!87 = !DILocation(line: 2, column: 7, scope: !81)
!88 = distinct !DISubprogram(name: "MyMethod", linkageName: "\01?MyMethod@C@@UAE_NXZ", scope: !41, file: !1, line: 5, type: !46, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !45, retainedNodes: !2)
!89 = !DILocalVariable(name: "this", arg: 1, scope: !88, type: !40, flags: DIFlagArtificial | DIFlagObjectPointer)
!90 = !DILocation(line: 0, scope: !88)
!91 = !DILocation(line: 5, column: 31, scope: !88)
!92 = distinct !DISubprogram(linkageName: "\01?MyMethod@C@@W3AE_NXZ", scope: !1, file: !1, line: 5, type: !71, isLocal: false, isDefinition: true, flags: DIFlagArtificial | DIFlagThunk, isOptimized: false, unit: !0, retainedNodes: !2)
!93 = !DILocalVariable(name: "this", arg: 1, scope: !92, type: !40, flags: DIFlagArtificial | DIFlagObjectPointer)
!94 = !DILocation(line: 0, scope: !92)
!95 = distinct !DISubprogram(name: "MyMethod", linkageName: "\01?MyMethod@A@@UAE_NXZ", scope: !14, file: !1, line: 1, type: !20, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !19, retainedNodes: !2)
!96 = !DILocalVariable(name: "this", arg: 1, scope: !95, type: !13, flags: DIFlagArtificial | DIFlagObjectPointer)
!97 = !DILocation(line: 0, scope: !95)
!98 = !DILocation(line: 1, column: 45, scope: !95)
!99 = distinct !DISubprogram(name: "MyMethod", linkageName: "\01?MyMethod@B@@UAE_NXZ", scope: !29, file: !1, line: 2, type: !33, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !32, retainedNodes: !2)
!100 = !DILocalVariable(name: "this", arg: 1, scope: !99, type: !28, flags: DIFlagArtificial | DIFlagObjectPointer)
!101 = !DILocation(line: 0, scope: !99)
!102 = !DILocation(line: 2, column: 45, scope: !99)