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Add the DW_AT_APPLE_runtime_class attribute to forward declarations

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as well as completely defined classes.

This fixes rdar://10956070

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152171 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher 2012-03-07 00:15:19 +00:00
parent 03be3622aa
commit 8938895a83
2 changed files with 33 additions and 5 deletions
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11
lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
View File

@ -870,11 +870,6 @@ void CompileUnit::constructTypeDIE(DIE &Buffer, DICompositeType CTy) {
if (CTy.isAppleBlockExtension())
addUInt(&Buffer, dwarf::DW_AT_APPLE_block, dwarf::DW_FORM_flag, 1);
unsigned RLang = CTy.getRunTimeLang();
if (RLang)
addUInt(&Buffer, dwarf::DW_AT_APPLE_runtime_class,
dwarf::DW_FORM_data1, RLang);
DICompositeType ContainingType = CTy.getContainingType();
if (DIDescriptor(ContainingType).isCompositeType())
addDIEEntry(&Buffer, dwarf::DW_AT_containing_type, dwarf::DW_FORM_ref4,
@ -922,6 +917,12 @@ void CompileUnit::constructTypeDIE(DIE &Buffer, DICompositeType CTy) {
// Add source line info if available.
if (!CTy.isForwardDecl())
addSourceLine(&Buffer, CTy);
// No harm in adding the runtime language to the declaration.
unsigned RLang = CTy.getRunTimeLang();
if (RLang)
addUInt(&Buffer, dwarf::DW_AT_APPLE_runtime_class,
dwarf::DW_FORM_data1, RLang);
}
}

27
test/DebugInfo/objc-fwd-decl.ll Normal file
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@ -0,0 +1,27 @@
; RUN: llc -mtriple=x86_64-macosx %s -o %t -filetype=obj
; RUN: llvm-dwarfdump %t | FileCheck %s
; CHECK: 0x00000027: DW_TAG_structure_type
; CHECK: 0x0000002c: DW_AT_declaration
; CHECK: 0x0000002d: DW_AT_APPLE_runtime_class
%0 = type opaque
@a = common global %0* null, align 8
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !10, !11, !12}
!0 = metadata !{i32 786449, i32 0, i32 16, metadata !"foo.m", metadata !"/Users/echristo", metadata !"clang version 3.1 (trunk 152054 trunk 152094)", i1 true, i1 false, metadata !"", i32 2, 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}
!5 = metadata !{i32 786484, i32 0, null, metadata !"a", metadata !"a", metadata !"", metadata !6, i32 3, metadata !7, i32 0, i32 1, %0** @a} ; [ DW_TAG_variable ]
!6 = metadata !{i32 786473, metadata !"foo.m", metadata !"/Users/echristo", null} ; [ DW_TAG_file_type ]
!7 = metadata !{i32 786447, null, metadata !"", null, i32 0, i64 64, i64 64, i64 0, i32 0, metadata !8} ; [ DW_TAG_pointer_type ]
!8 = metadata !{i32 786451, null, metadata !"FooBarBaz", metadata !6, i32 1, i32 0, i32 0, i32 0, i32 4, null, null, i32 16} ; [ DW_TAG_structure_type ]
!9 = metadata !{i32 1, metadata !"Objective-C Version", i32 2}
!10 = metadata !{i32 1, metadata !"Objective-C Image Info Version", i32 0}
!11 = metadata !{i32 1, metadata !"Objective-C Image Info Section", metadata !"__DATA, __objc_imageinfo, regular, no_dead_strip"}
!12 = metadata !{i32 4, metadata !"Objective-C Garbage Collection", i32 0}