[llvm-branch-commits] [llvm-branch] r227492 - Merging r227290:

Hans Wennborg hans at hanshq.net
Thu Jan 29 12:57:17 PST 2015


Author: hans
Date: Thu Jan 29 14:57:17 2015
New Revision: 227492

URL: http://llvm.org/viewvc/llvm-project?rev=227492&view=rev
Log:
Merging r227290:
------------------------------------------------------------------------
r227290 | dblaikie | 2015-01-27 18:34:53 -0800 (Tue, 27 Jan 2015) | 1 line

PR22356: DebugInfo: Handle the size of a member where the type of that member is a typedef (or other sugar) of a declaration.
------------------------------------------------------------------------

Modified:
    llvm/branches/release_36/   (props changed)
    llvm/branches/release_36/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
    llvm/branches/release_36/test/DebugInfo/X86/decl-derived-member.ll

Propchange: llvm/branches/release_36/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Thu Jan 29 14:57:17 2015
@@ -1,3 +1,3 @@
 /llvm/branches/Apple/Pertwee:110850,110961
 /llvm/branches/type-system-rewrite:133420-134817
-/llvm/trunk:155241,226023,226029,226044,226046,226048,226058,226075,226170-226171,226182,226473,226664,226708,226711,226755,227005,227085,227250,227260-227261,227294,227299-227300,227319,227339
+/llvm/trunk:155241,226023,226029,226044,226046,226048,226058,226075,226170-226171,226182,226473,226664,226708,226711,226755,227005,227085,227250,227260-227261,227290,227294,227299-227300,227319,227339

Modified: llvm/branches/release_36/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/release_36/lib/CodeGen/AsmPrinter/DwarfUnit.cpp?rev=227492&r1=227491&r2=227492&view=diff
==============================================================================
--- llvm/branches/release_36/lib/CodeGen/AsmPrinter/DwarfUnit.cpp (original)
+++ llvm/branches/release_36/lib/CodeGen/AsmPrinter/DwarfUnit.cpp Thu Jan 29 14:57:17 2015
@@ -626,10 +626,7 @@ static uint64_t getBaseTypeSize(DwarfDeb
 
   DIType BaseType = DD->resolve(Ty.getTypeDerivedFrom());
 
-  // If this type is not derived from any type or the type is a declaration then
-  // take conservative approach.
-  if (!BaseType.isValid() || BaseType.isForwardDecl())
-    return Ty.getSizeInBits();
+  assert(BaseType.isValid());
 
   // If this is a derived type, go ahead and get the base type, unless it's a
   // reference then it's just the size of the field. Pointer types have no need
@@ -1473,7 +1470,7 @@ void DwarfUnit::constructMemberDIE(DIE &
     uint64_t FieldSize = getBaseTypeSize(DD, DT);
     uint64_t OffsetInBytes;
 
-    if (Size != FieldSize) {
+    if (FieldSize && Size != FieldSize) {
       // Handle bitfield, assume bytes are 8 bits.
       addUInt(MemberDie, dwarf::DW_AT_byte_size, None, FieldSize/8);
       addUInt(MemberDie, dwarf::DW_AT_bit_size, None, Size);

Modified: llvm/branches/release_36/test/DebugInfo/X86/decl-derived-member.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/release_36/test/DebugInfo/X86/decl-derived-member.ll?rev=227492&r1=227491&r2=227492&view=diff
==============================================================================
--- llvm/branches/release_36/test/DebugInfo/X86/decl-derived-member.ll (original)
+++ llvm/branches/release_36/test/DebugInfo/X86/decl-derived-member.ll Thu Jan 29 14:57:17 2015
@@ -7,8 +7,9 @@
 ; struct base {
 ;  virtual ~base();
 ; };
+; typedef base base_type;
 ; struct foo {
-;  base b;
+;  base_type b;
 ; };
 ; foo f;
 
@@ -20,40 +21,47 @@
 
 %struct.foo = type { %struct.base }
 %struct.base = type { i32 (...)** }
+
+$_ZN3fooC2Ev = comdat any
+
+$_ZN3fooD2Ev = comdat any
+
+$_ZN4baseC2Ev = comdat any
+
 @f = global %struct.foo zeroinitializer, align 8
 @__dso_handle = external global i8
 @_ZTV4base = external unnamed_addr constant [4 x i8*]
- at llvm.global_ctors = appending global [1 x { i32, void ()* }] [{ i32, void ()* } { i32 65535, void ()* @_GLOBAL__I_a }]
+ at llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_decl_derived_member.cpp, i8* null }]
 
 define internal void @__cxx_global_var_init() section ".text.startup" {
 entry:
-  call void @_ZN3fooC2Ev(%struct.foo* @f) #2, !dbg !35
-  %0 = call i32 @__cxa_atexit(void (i8*)* bitcast (void (%struct.foo*)* @_ZN3fooD2Ev to void (i8*)*), i8* bitcast (%struct.foo* @f to i8*), i8* @__dso_handle) #2, !dbg !35
-  ret void, !dbg !35
+  call void @_ZN3fooC2Ev(%struct.foo* @f) #2, !dbg !33
+  %0 = call i32 @__cxa_atexit(void (i8*)* bitcast (void (%struct.foo*)* @_ZN3fooD2Ev to void (i8*)*), i8* bitcast (%struct.foo* @f to i8*), i8* @__dso_handle) #2, !dbg !33
+  ret void, !dbg !33
 }
 
 ; Function Attrs: inlinehint nounwind uwtable
-define linkonce_odr void @_ZN3fooC2Ev(%struct.foo* %this) unnamed_addr #0 align 2 {
+define linkonce_odr void @_ZN3fooC2Ev(%struct.foo* %this) unnamed_addr #0 comdat align 2 {
 entry:
   %this.addr = alloca %struct.foo*, align 8
   store %struct.foo* %this, %struct.foo** %this.addr, align 8
-  call void @llvm.dbg.declare(metadata %struct.foo** %this.addr, metadata !36, metadata !{!"0x102"}), !dbg !38
+  call void @llvm.dbg.declare(metadata %struct.foo** %this.addr, metadata !34, metadata !36), !dbg !37
   %this1 = load %struct.foo** %this.addr
-  %b = getelementptr inbounds %struct.foo* %this1, i32 0, i32 0, !dbg !39
-  call void @_ZN4baseC2Ev(%struct.base* %b) #2, !dbg !39
-  ret void, !dbg !39
+  %b = getelementptr inbounds %struct.foo* %this1, i32 0, i32 0, !dbg !38
+  call void @_ZN4baseC2Ev(%struct.base* %b) #2, !dbg !38
+  ret void, !dbg !38
 }
 
 ; Function Attrs: inlinehint uwtable
-define linkonce_odr void @_ZN3fooD2Ev(%struct.foo* %this) unnamed_addr #1 align 2 {
+define linkonce_odr void @_ZN3fooD2Ev(%struct.foo* %this) unnamed_addr #1 comdat align 2 {
 entry:
   %this.addr = alloca %struct.foo*, align 8
   store %struct.foo* %this, %struct.foo** %this.addr, align 8
-  call void @llvm.dbg.declare(metadata %struct.foo** %this.addr, metadata !40, metadata !{!"0x102"}), !dbg !41
+  call void @llvm.dbg.declare(metadata %struct.foo** %this.addr, metadata !39, metadata !36), !dbg !40
   %this1 = load %struct.foo** %this.addr
-  %b = getelementptr inbounds %struct.foo* %this1, i32 0, i32 0, !dbg !42
-  call void @_ZN4baseD1Ev(%struct.base* %b), !dbg !42
-  ret void, !dbg !44
+  %b = getelementptr inbounds %struct.foo* %this1, i32 0, i32 0, !dbg !41
+  call void @_ZN4baseD1Ev(%struct.base* %b), !dbg !41
+  ret void, !dbg !43
 }
 
 ; Function Attrs: nounwind
@@ -62,24 +70,24 @@ declare i32 @__cxa_atexit(void (i8*)*, i
 ; Function Attrs: nounwind readnone
 declare void @llvm.dbg.declare(metadata, metadata, metadata) #3
 
-declare void @_ZN4baseD1Ev(%struct.base*) #4
-
 ; Function Attrs: inlinehint nounwind uwtable
-define linkonce_odr void @_ZN4baseC2Ev(%struct.base* %this) unnamed_addr #0 align 2 {
+define linkonce_odr void @_ZN4baseC2Ev(%struct.base* %this) unnamed_addr #0 comdat align 2 {
 entry:
   %this.addr = alloca %struct.base*, align 8
   store %struct.base* %this, %struct.base** %this.addr, align 8
-  call void @llvm.dbg.declare(metadata %struct.base** %this.addr, metadata !45, metadata !{!"0x102"}), !dbg !47
+  call void @llvm.dbg.declare(metadata %struct.base** %this.addr, metadata !44, metadata !36), !dbg !46
   %this1 = load %struct.base** %this.addr
-  %0 = bitcast %struct.base* %this1 to i8***, !dbg !48
-  store i8** getelementptr inbounds ([4 x i8*]* @_ZTV4base, i64 0, i64 2), i8*** %0, !dbg !48
-  ret void, !dbg !48
+  %0 = bitcast %struct.base* %this1 to i32 (...)***, !dbg !47
+  store i32 (...)** bitcast (i8** getelementptr inbounds ([4 x i8*]* @_ZTV4base, i64 0, i64 2) to i32 (...)**), i32 (...)*** %0, !dbg !47
+  ret void, !dbg !47
 }
 
-define internal void @_GLOBAL__I_a() section ".text.startup" {
+declare void @_ZN4baseD1Ev(%struct.base*) #4
+
+define internal void @_GLOBAL__sub_I_decl_derived_member.cpp() section ".text.startup" {
 entry:
-  call void @__cxx_global_var_init(), !dbg !49
-  ret void, !dbg !49
+  call void @__cxx_global_var_init(), !dbg !48
+  ret void
 }
 
 attributes #0 = { inlinehint 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" }
@@ -89,56 +97,55 @@ attributes #3 = { nounwind readnone }
 attributes #4 = { "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" }
 
 !llvm.dbg.cu = !{!0}
-!llvm.module.flags = !{!32, !33}
-!llvm.ident = !{!34}
+!llvm.module.flags = !{!30, !31}
+!llvm.ident = !{!32}
 
-!0 = !{!"0x11\004\00clang version 3.5.0 (trunk 203673) (llvm/trunk 203681)\000\00\000\00\001", !1, !2, !3, !8, !30, !2} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/foo.cc] [DW_LANG_C_plus_plus]
-!1 = !{!"foo.cc", !"/usr/local/google/home/echristo"}
+!0 = !{!"0x11\004\00clang version 3.7.0 (trunk 227104) (llvm/trunk 227103)\000\00\000\00\001", !1, !2, !3, !9, !28, !2} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/decl-derived-member.cpp] [DW_LANG_C_plus_plus]
+!1 = !{!"decl-derived-member.cpp", !"/tmp/dbginfo"}
 !2 = !{}
-!3 = !{!4, !7}
+!3 = !{!4, !8}
 !4 = !{!"0x13\00foo\005\0064\0064\000\000\000", !1, null, null, !5, null, null, !"_ZTS3foo"} ; [ DW_TAG_structure_type ] [foo] [line 5, size 64, align 64, offset 0] [def] [from ]
 !5 = !{!6}
-!6 = !{!"0xd\00b\006\0064\0064\000\000", !1, !"_ZTS3foo", !"_ZTS4base"} ; [ DW_TAG_member ] [b] [line 6, size 64, align 64, offset 0] [from _ZTS4base]
-!7 = !{!"0x13\00base\001\000\000\000\004\000", !1, null, null, null, null, null, !"_ZTS4base"} ; [ DW_TAG_structure_type ] [base] [line 1, size 0, align 0, offset 0] [decl] [from ]
-!8 = !{!9, !13, !19, !22, !28}
-!9 = !{!"0x2e\00__cxx_global_var_init\00__cxx_global_var_init\00\009\001\001\000\006\00256\000\009", !1, !10, !11, null, void ()* @__cxx_global_var_init, null, null, !2} ; [ DW_TAG_subprogram ] [line 9] [local] [def] [__cxx_global_var_init]
-!10 = !{!"0x29", !1}         ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/foo.cc]
-!11 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !12, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!12 = !{null}
-!13 = !{!"0x2e\00~foo\00~foo\00_ZN3fooD2Ev\005\000\001\000\006\00320\000\005", !1, !"_ZTS3foo", !14, null, void (%struct.foo*)* @_ZN3fooD2Ev, null, !17, !2} ; [ DW_TAG_subprogram ] [line 5] [def] [~foo]
-!14 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !15, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!15 = !{null, !16}
-!16 = !{!"0xf\00\000\0064\0064\000\001088", null, null, !"_ZTS3foo"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS3foo]
-!17 = !{!"0x2e\00~foo\00~foo\00\000\000\000\000\006\00320\000\000", null, !"_ZTS3foo", !14, null, null, null, i32 0, !18} ; [ DW_TAG_subprogram ] [line 0] [~foo]
-!18 = !{i32 786468}
-!19 = !{!"0x2e\00foo\00foo\00_ZN3fooC2Ev\005\000\001\000\006\00320\000\005", !1, !"_ZTS3foo", !14, null, void (%struct.foo*)* @_ZN3fooC2Ev, null, !20, !2} ; [ DW_TAG_subprogram ] [line 5] [def] [foo]
-!20 = !{!"0x2e\00foo\00foo\00\000\000\000\000\006\00320\000\000", null, !"_ZTS3foo", !14, null, null, null, i32 0, !21} ; [ DW_TAG_subprogram ] [line 0] [foo]
-!21 = !{i32 786468}
-!22 = !{!"0x2e\00base\00base\00_ZN4baseC2Ev\001\000\001\000\006\00320\000\001", !1, !"_ZTS4base", !23, null, void (%struct.base*)* @_ZN4baseC2Ev, null, !26, !2} ; [ DW_TAG_subprogram ] [line 1] [def] [base]
-!23 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !24, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!24 = !{null, !25}
-!25 = !{!"0xf\00\000\0064\0064\000\001088", null, null, !"_ZTS4base"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS4base]
-!26 = !{!"0x2e\00base\00base\00\000\000\000\000\006\00320\000\000", null, !"_ZTS4base", !23, null, null, null, i32 0, !27} ; [ DW_TAG_subprogram ] [line 0] [base]
-!27 = !{i32 786468}
-!28 = !{!"0x2e\00\00\00_GLOBAL__I_a\001\001\001\000\006\0064\000\001", !1, !10, !29, null, void ()* @_GLOBAL__I_a, null, null, !2} ; [ DW_TAG_subprogram ] [line 1] [local] [def]
-!29 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!30 = !{!31}
-!31 = !{!"0x34\00f\00f\00\009\000\001", null, !10, !4, %struct.foo* @f, null} ; [ DW_TAG_variable ] [f] [line 9] [def]
-!32 = !{i32 2, !"Dwarf Version", i32 4}
-!33 = !{i32 1, !"Debug Info Version", i32 2}
-!34 = !{!"clang version 3.5.0 (trunk 203673) (llvm/trunk 203681)"}
-!35 = !MDLocation(line: 9, scope: !9)
-!36 = !{!"0x101\00this\0016777216\001088", !19, null, !37} ; [ DW_TAG_arg_variable ] [this] [line 0]
-!37 = !{!"0xf\00\000\0064\0064\000\000", null, null, !"_ZTS3foo"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS3foo]
-!38 = !MDLocation(line: 0, scope: !19)
-!39 = !MDLocation(line: 5, scope: !19)
-!40 = !{!"0x101\00this\0016777216\001088", !13, null, !37} ; [ DW_TAG_arg_variable ] [this] [line 0]
-!41 = !MDLocation(line: 0, scope: !13)
-!42 = !MDLocation(line: 5, scope: !43)
-!43 = !{!"0xb\005\000\000", !1, !13} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/foo.cc]
-!44 = !MDLocation(line: 5, scope: !13)
-!45 = !{!"0x101\00this\0016777216\001088", !22, null, !46} ; [ DW_TAG_arg_variable ] [this] [line 0]
-!46 = !{!"0xf\00\000\0064\0064\000\000", null, null, !"_ZTS4base"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS4base]
-!47 = !MDLocation(line: 0, scope: !22)
-!48 = !MDLocation(line: 1, scope: !22)
-!49 = !MDLocation(line: 1, scope: !28)
+!6 = !{!"0xd\00b\006\0064\0064\000\000", !1, !"_ZTS3foo", !7} ; [ DW_TAG_member ] [b] [line 6, size 64, align 64, offset 0] [from base_type]
+!7 = !{!"0x16\00base_type\004\000\000\000\000", !1, null, !"_ZTS4base"} ; [ DW_TAG_typedef ] [base_type] [line 4, size 0, align 0, offset 0] [from _ZTS4base]
+!8 = !{!"0x13\00base\001\000\000\000\004\000", !1, null, null, null, null, null, !"_ZTS4base"} ; [ DW_TAG_structure_type ] [base] [line 1, size 0, align 0, offset 0] [decl] [from ]
+!9 = !{!10, !14, !19, !24, !26}
+!10 = !{!"0x2e\00__cxx_global_var_init\00__cxx_global_var_init\00\008\001\001\000\000\00256\000\008", !1, !11, !12, null, void ()* @__cxx_global_var_init, null, null, !2} ; [ DW_TAG_subprogram ] [line 8] [local] [def] [__cxx_global_var_init]
+!11 = !{!"0x29", !1}                              ; [ DW_TAG_file_type ] [/tmp/dbginfo/decl-derived-member.cpp]
+!12 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !13, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!13 = !{null}
+!14 = !{!"0x2e\00foo\00foo\00_ZN3fooC2Ev\005\000\001\000\000\00320\000\005", !1, !"_ZTS3foo", !15, null, void (%struct.foo*)* @_ZN3fooC2Ev, null, !18, !2} ; [ DW_TAG_subprogram ] [line 5] [def] [foo]
+!15 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !16, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!16 = !{null, !17}
+!17 = !{!"0xf\00\000\0064\0064\000\001088\00", null, null, !"_ZTS3foo"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS3foo]
+!18 = !{!"0x2e\00foo\00foo\00\000\000\000\000\000\00320\000\000", null, !"_ZTS3foo", !15, null, null, null, null, null} ; [ DW_TAG_subprogram ] [line 0] [foo]
+!19 = !{!"0x2e\00base\00base\00_ZN4baseC2Ev\001\000\001\000\000\00320\000\001", !1, !"_ZTS4base", !20, null, void (%struct.base*)* @_ZN4baseC2Ev, null, !23, !2} ; [ DW_TAG_subprogram ] [line 1] [def] [base]
+!20 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !21, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!21 = !{null, !22}
+!22 = !{!"0xf\00\000\0064\0064\000\001088\00", null, null, !"_ZTS4base"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS4base]
+!23 = !{!"0x2e\00base\00base\00\000\000\000\000\000\00320\000\000", null, !"_ZTS4base", !20, null, null, null, null, null} ; [ DW_TAG_subprogram ] [line 0] [base]
+!24 = !{!"0x2e\00~foo\00~foo\00_ZN3fooD2Ev\005\000\001\000\000\00320\000\005", !1, !"_ZTS3foo", !15, null, void (%struct.foo*)* @_ZN3fooD2Ev, null, !25, !2} ; [ DW_TAG_subprogram ] [line 5] [def] [~foo]
+!25 = !{!"0x2e\00~foo\00~foo\00\000\000\000\000\000\00320\000\000", null, !"_ZTS3foo", !15, null, null, null, null, null} ; [ DW_TAG_subprogram ] [line 0] [~foo]
+!26 = !{!"0x2e\00\00\00_GLOBAL__sub_I_decl_derived_member.cpp\000\001\001\000\000\0064\000\000", !1, !11, !27, null, void ()* @_GLOBAL__sub_I_decl_derived_member.cpp, null, null, !2} ; [ DW_TAG_subprogram ] [line 0] [local] [def]
+!27 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!28 = !{!29}
+!29 = !{!"0x34\00f\00f\00\008\000\001", null, !11, !"_ZTS3foo", %struct.foo* @f, null} ; [ DW_TAG_variable ] [f] [line 8] [def]
+!30 = !{i32 2, !"Dwarf Version", i32 4}
+!31 = !{i32 2, !"Debug Info Version", i32 2}
+!32 = !{!"clang version 3.7.0 (trunk 227104) (llvm/trunk 227103)"}
+!33 = !MDLocation(line: 8, column: 5, scope: !10)
+!34 = !{!"0x101\00this\0016777216\001088", !14, null, !35} ; [ DW_TAG_arg_variable ] [this] [line 0]
+!35 = !{!"0xf\00\000\0064\0064\000\000", null, null, !"_ZTS3foo"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS3foo]
+!36 = !{!"0x102"}                                 ; [ DW_TAG_expression ]
+!37 = !MDLocation(line: 0, scope: !14)
+!38 = !MDLocation(line: 5, column: 8, scope: !14)
+!39 = !{!"0x101\00this\0016777216\001088", !24, null, !35} ; [ DW_TAG_arg_variable ] [this] [line 0]
+!40 = !MDLocation(line: 0, scope: !24)
+!41 = !MDLocation(line: 5, column: 8, scope: !42)
+!42 = !{!"0xb\005\008\002", !1, !24}              ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/decl-derived-member.cpp]
+!43 = !MDLocation(line: 5, column: 8, scope: !24)
+!44 = !{!"0x101\00this\0016777216\001088", !19, null, !45} ; [ DW_TAG_arg_variable ] [this] [line 0]
+!45 = !{!"0xf\00\000\0064\0064\000\000", null, null, !"_ZTS4base"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS4base]
+!46 = !MDLocation(line: 0, scope: !19)
+!47 = !MDLocation(line: 1, column: 8, scope: !19)
+!48 = !MDLocation(line: 0, scope: !26)





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