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Fix the output of the DW_TAG_friend tag to include DW_AT_friend

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and not the rest of the member tag.

Fixes PR11695

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153570 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher 2012-03-28 07:34:31 +00:00
parent 30fe94ea43
commit 663e0cf73d
3 changed files with 63 additions and 8 deletions
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18
lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
View File

@ -628,7 +628,8 @@ DIE *CompileUnit::getOrCreateTypeDIE(const MDNode *TyNode) {
}
/// addType - Add a new type attribute to the specified entity.
void CompileUnit::addType(DIE *Entity, DIType Ty) {
void CompileUnit::addType(DIE *Entity, DIType Ty,
unsigned Attribute) {
if (!Ty.Verify())
return;
@ -636,7 +637,7 @@ void CompileUnit::addType(DIE *Entity, DIType Ty) {
DIEEntry *Entry = getDIEEntry(Ty);
// If it exists then use the existing value.
if (Entry) {
Entity->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, Entry);
Entity->addValue(Attribute, dwarf::DW_FORM_ref4, Entry);
return;
}
@ -646,7 +647,7 @@ void CompileUnit::addType(DIE *Entity, DIType Ty) {
// Set up proxy.
Entry = createDIEEntry(Buffer);
insertDIEEntry(Ty, Entry);
Entity->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, Entry);
Entity->addValue(Attribute, dwarf::DW_FORM_ref4, Entry);
// If this is a complete composite type then include it in the
// list of global types.
@ -826,9 +827,14 @@ void CompileUnit::constructTypeDIE(DIE &Buffer, DICompositeType CTy) {
addUInt(ElemDie, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag, 1);
addUInt(ElemDie, dwarf::DW_AT_external, dwarf::DW_FORM_flag, 1);
addSourceLine(ElemDie, DV);
} else if (Element.isDerivedType())
ElemDie = createMemberDIE(DIDerivedType(Element));
else if (Element.isObjCProperty()) {
} else if (Element.isDerivedType()) {
DIDerivedType DDTy(Element);
if (DDTy.getTag() == dwarf::DW_TAG_friend) {
ElemDie = new DIE(dwarf::DW_TAG_friend);
addType(ElemDie, DDTy.getTypeDerivedFrom(), dwarf::DW_AT_friend);
} else
ElemDie = createMemberDIE(DIDerivedType(Element));
} else if (Element.isObjCProperty()) {
DIObjCProperty Property(Element);
ElemDie = new DIE(Property.getTag());
StringRef PropertyName = Property.getObjCPropertyName();

6
lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
View File

@ -260,8 +260,10 @@ public:
/// addToContextOwner - Add Die into the list of its context owner's children.
void addToContextOwner(DIE *Die, DIDescriptor Context);
/// addType - Add a new type attribute to the specified entity.
void addType(DIE *Entity, DIType Ty);
/// addType - Add a new type attribute to the specified entity. This takes
/// and attribute parameter because DW_AT_friend attributes are also
/// type references.
void addType(DIE *Entity, DIType Ty, unsigned Attribute = dwarf::DW_AT_type);
/// getOrCreateNameSpace - Create a DIE for DINameSpace.
DIE *getOrCreateNameSpace(DINameSpace NS);

47
test/DebugInfo/X86/DW_TAG_friend.ll Normal file
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@ -0,0 +1,47 @@
; RUN: llc -mtriple=x86_64-apple-darwin %s -o %t -filetype=obj
; RUN: llvm-dwarfdump %t | FileCheck %s
; Check that the friend tag is there and is followed by a DW_AT_friend that has a reference back.
; CHECK: 0x00000032: DW_TAG_class_type [4]
; CHECK: 0x00000077: DW_TAG_class_type [4]
; CHECK: 0x000000a0: DW_TAG_friend [9]
; CHECK: 0x000000a1: DW_AT_friend [DW_FORM_ref4] (cu + 0x0032 => {0x00000032})
%class.A = type { i32 }
%class.B = type { i32 }
@a = global %class.A zeroinitializer, align 4
@b = global %class.B zeroinitializer, align 4
!llvm.dbg.cu = !{!0}
!0 = metadata !{i32 786449, i32 0, i32 4, metadata !"foo.cpp", metadata !"/Users/echristo/tmp", metadata !"clang version 3.1 (trunk 153413) (llvm/trunk 153428)", i1 true, i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3} ; [ DW_TAG_compile_unit ]
!1 = metadata !{metadata !2}
!2 = metadata !{i32 0}
!3 = metadata !{metadata !4}
!4 = metadata !{metadata !5, metadata !17}
!5 = metadata !{i32 786484, i32 0, null, metadata !"a", metadata !"a", metadata !"", metadata !6, i32 10, metadata !7, i32 0, i32 1, %class.A* @a} ; [ DW_TAG_variable ]
!6 = metadata !{i32 786473, metadata !"foo.cpp", metadata !"/Users/echristo/tmp", null} ; [ DW_TAG_file_type ]
!7 = metadata !{i32 786434, null, metadata !"A", metadata !6, i32 1, i64 32, i64 32, i32 0, i32 0, null, metadata !8, i32 0, null, null} ; [ DW_TAG_class_type ]
!8 = metadata !{metadata !9, metadata !11}
!9 = metadata !{i32 786445, metadata !7, metadata !"a", metadata !6, i32 2, i64 32, i64 32, i64 0, i32 1, metadata !10} ; [ DW_TAG_member ]
!10 = metadata !{i32 786468, null, metadata !"int", null, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
!11 = metadata !{i32 786478, i32 0, metadata !7, metadata !"A", metadata !"A", metadata !"", metadata !6, i32 1, metadata !12, i1 false, i1 false, i32 0, i32 0, null, i32 320, i1 false, null, null, i32 0, metadata !15} ; [ DW_TAG_subprogram ]
!12 = metadata !{i32 786453, i32 0, metadata !"", i32 0, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !13, i32 0, i32 0} ; [ DW_TAG_subroutine_type ]
!13 = metadata !{null, metadata !14}
!14 = metadata !{i32 786447, i32 0, metadata !"", i32 0, i32 0, i64 64, i64 64, i64 0, i32 64, metadata !7} ; [ DW_TAG_pointer_type ]
!15 = metadata !{metadata !16}
!16 = metadata !{i32 786468} ; [ DW_TAG_base_type ]
!17 = metadata !{i32 786484, i32 0, null, metadata !"b", metadata !"b", metadata !"", metadata !6, i32 11, metadata !18, i32 0, i32 1, %class.B* @b} ; [ DW_TAG_variable ]
!18 = metadata !{i32 786434, null, metadata !"B", metadata !6, i32 5, i64 32, i64 32, i32 0, i32 0, null, metadata !19, i32 0, null, null} ; [ DW_TAG_class_type ]
!19 = metadata !{metadata !20, metadata !21, metadata !27}
!20 = metadata !{i32 786445, metadata !18, metadata !"b", metadata !6, i32 7, i64 32, i64 32, i64 0, i32 1, metadata !10} ; [ DW_TAG_member ]
!21 = metadata !{i32 786478, i32 0, metadata !18, metadata !"B", metadata !"B", metadata !"", metadata !6, i32 5, metadata !22, i1 false, i1 false, i32 0, i32 0, null, i32 320, i1 false, null, null, i32 0, metadata !25} ; [ DW_TAG_subprogram ]
!22 = metadata !{i32 786453, i32 0, metadata !"", i32 0, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !23, i32 0, i32 0} ; [ DW_TAG_subroutine_type ]
!23 = metadata !{null, metadata !24}
!24 = metadata !{i32 786447, i32 0, metadata !"", i32 0, i32 0, i64 64, i64 64, i64 0, i32 64, metadata !18} ; [ DW_TAG_pointer_type ]
!25 = metadata !{metadata !26}
!26 = metadata !{i32 786468} ; [ DW_TAG_base_type ]
!27 = metadata !{i32 786474, metadata !18, null, metadata !6, i32 0, i64 0, i64 0, i64 0, i32 0, metadata !7} ; [ DW_TAG_friend ]