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For DW_TAG_template_type_parameter the actual passed in type could

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be void and therefore not have a type entry. Only add the type if
it is non-void and provide a testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187966 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher 2013-08-08 08:09:43 +00:00
parent eee2a11ee3
commit 76ef79f410
2 changed files with 57 additions and 1 deletions
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4
lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
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@ -1123,7 +1123,9 @@ CompileUnit::getOrCreateTemplateTypeParameterDIE(DITemplateTypeParameter TP) {
return ParamDIE;
ParamDIE = new DIE(dwarf::DW_TAG_template_type_parameter);
addType(ParamDIE, TP.getType());
// Add the type if it exists, it could be void and therefore no type.
if (TP.getType())
addType(ParamDIE, TP.getType());
if (!TP.getName().empty())
addString(ParamDIE, dwarf::DW_AT_name, TP.getName());
return ParamDIE;

54
test/DebugInfo/template-recursive-void.ll Normal file
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@ -0,0 +1,54 @@
; REQUIRES: object-emission
; RUN: llc -O0 -filetype=obj < %s > %t
; RUN: llvm-dwarfdump %t | FileCheck %s
; CHECK: DW_TAG_template_type_parameter [10]
; CHECK-NEXT: DW_AT_name{{.*}}"T"
; CHECK-NOT: DW_AT_type
; CHECK: NULL
%class.bar = type { i8 }
@filters = global %class.bar zeroinitializer, align 1
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!36}
!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 (trunk 187958) (llvm/trunk 187964)", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !2, metadata !3, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/debug-info-template-recursive.cpp] [DW_LANG_C_plus_plus]
!1 = metadata !{metadata !"debug-info-template-recursive.cpp", metadata !"/usr/local/google/home/echristo/tmp"}
!2 = metadata !{i32 0}
!3 = metadata !{metadata !4}
!4 = metadata !{i32 786484, i32 0, null, metadata !"filters", metadata !"filters", metadata !"", metadata !5, i32 10, metadata !6, i32 0, i32 1, %class.bar* @filters, null} ; [ DW_TAG_variable ] [filters] [line 10] [def]
!5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/tmp/debug-info-template-recursive.cpp]
!6 = metadata !{i32 786434, metadata !1, null, metadata !"bar", i32 9, i64 8, i64 8, i32 0, i32 0, null, metadata !7, i32 0, null, null} ; [ DW_TAG_class_type ] [bar] [line 9, size 8, align 8, offset 0] [def] [from ]
!7 = metadata !{metadata !8, metadata !31}
!8 = metadata !{i32 786460, null, metadata !6, null, i32 0, i64 0, i64 0, i64 0, i32 0, metadata !9} ; [ DW_TAG_inheritance ] [line 0, size 0, align 0, offset 0] [from foo<void>]
!9 = metadata !{i32 786434, metadata !1, null, metadata !"foo<void>", i32 5, i64 8, i64 8, i32 0, i32 0, null, metadata !10, i32 0, null, metadata !29} ; [ DW_TAG_class_type ] [foo<void>] [line 5, size 8, align 8, offset 0] [def] [from ]
!10 = metadata !{metadata !11, metadata !19, metadata !25}
!11 = metadata !{i32 786460, null, metadata !9, null, i32 0, i64 0, i64 0, i64 0, i32 0, metadata !12} ; [ DW_TAG_inheritance ] [line 0, size 0, align 0, offset 0] [from base]
!12 = metadata !{i32 786434, metadata !1, null, metadata !"base", i32 3, i64 8, i64 8, i32 0, i32 0, null, metadata !13, i32 0, null, null} ; [ DW_TAG_class_type ] [base] [line 3, size 8, align 8, offset 0] [def] [from ]
!13 = metadata !{metadata !14}
!14 = metadata !{i32 786478, metadata !1, metadata !12, metadata !"base", metadata !"base", metadata !"", i32 3, metadata !15, i1 false, i1 false, i32 0, i32 0, null, i32 320, i1 false, null, null, i32 0, metadata !18, i32 3} ; [ DW_TAG_subprogram ] [line 3] [base]
!15 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !16, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!16 = metadata !{null, metadata !17}
!17 = metadata !{i32 786447, i32 0, i32 0, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !12} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from base]
!18 = metadata !{i32 786468}
!19 = metadata !{i32 786478, metadata !1, metadata !9, metadata !"operator=", metadata !"operator=", metadata !"_ZN3fooIvEaSES0_", i32 6, metadata !20, i1 false, i1 false, i32 0, i32 0, null, i32 257, i1 false, null, null, i32 0, metadata !24, i32 6} ; [ DW_TAG_subprogram ] [line 6] [private] [operator=]
!20 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !21, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!21 = metadata !{null, metadata !22, metadata !23}
!22 = metadata !{i32 786447, i32 0, i32 0, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !9} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from foo<void>]
!23 = metadata !{i32 786470, null, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, metadata !9} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from foo<void>]
!24 = metadata !{i32 786468}
!25 = metadata !{i32 786478, metadata !1, metadata !9, metadata !"foo", metadata !"foo", metadata !"", i32 5, metadata !26, i1 false, i1 false, i32 0, i32 0, null, i32 320, i1 false, null, null, i32 0, metadata !28, i32 5} ; [ DW_TAG_subprogram ] [line 5] [foo]
!26 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !27, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!27 = metadata !{null, metadata !22}
!28 = metadata !{i32 786468}
!29 = metadata !{metadata !30}
!30 = metadata !{i32 786479, null, metadata !"T", null, null, i32 0, i32 0} ; [ DW_TAG_template_type_parameter ]
!31 = metadata !{i32 786478, metadata !1, metadata !6, metadata !"bar", metadata !"bar", metadata !"", i32 9, metadata !32, i1 false, i1 false, i32 0, i32 0, null, i32 320, i1 false, null, null, i32 0, metadata !35, i32 9} ; [ DW_TAG_subprogram ] [line 9] [bar]
!32 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !33, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!33 = metadata !{null, metadata !34}
!34 = metadata !{i32 786447, i32 0, i32 0, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !6} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from bar]
!35 = metadata !{i32 786468}
!36 = metadata !{i32 2, metadata !"Dwarf Version", i32 3}