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DebugInfo: Assume the CU's Subprogram list only contains definitions.

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DIBuilder maintains this invariant and the current DwarfDebug code could
end up doing weird things if it contained declarations (such as putting
the definition DIE inside a CU that contained the declaration - this
doesn't seem like a good idea, so rather than adding logic to handle
this case we'll just ban in for now & cross that bridge if we come to
it later).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209004 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie 2014-05-16 18:26:53 +00:00
parent 117b038592
commit 33b37c7b12
5 changed files with 5 additions and 8 deletions
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5
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
View File

@ -718,10 +718,7 @@ void DwarfDebug::constructSubprogramDIE(DwarfCompileUnit &TheCU,
DISubprogram SP(N);
assert(SP.isSubprogram());
if (!SP.isDefinition())
// This is a method declaration which will be handled while constructing
// class type.
return;
assert(SP.isDefinition());
DIE &SubprogramDie = *TheCU.getOrCreateSubprogramDIE(SP);

2
test/CodeGen/ARM/2010-08-04-StackVariable.ll
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@ -123,7 +123,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
!43 = metadata !{i32 26, i32 0, metadata !39, null}
!44 = metadata !{i32 786688, metadata !39, metadata !"k", metadata !2, i32 26, metadata !13, i32 0, i32 0} ; [ DW_TAG_auto_variable ]
!45 = metadata !{i32 27, i32 0, metadata !39, null}
!46 = metadata !{metadata !0, metadata !9, metadata !16, metadata !17, metadata !20}
!46 = metadata !{metadata !16, metadata !17, metadata !20}
!47 = metadata !{}
!48 = metadata !{metadata !"small.cc", metadata !"/Users/manav/R8248330"}
!49 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}

2
test/CodeGen/X86/2010-08-04-StackVariable.ll
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@ -76,7 +76,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
!llvm.dbg.cu = !{!3}
!llvm.module.flags = !{!49}
!46 = metadata !{metadata !0, metadata !9, metadata !16, metadata !17, metadata !20}
!46 = metadata !{metadata !16, metadata !17, metadata !20}
!0 = metadata !{i32 786478, metadata !47, metadata !1, metadata !"SVal", metadata !"SVal", metadata !"", i32 11, metadata !14, i1 false, i1 false, i32 0, i32 0, null, i1 false, i1 false, null, null, null, null, i32 11} ; [ DW_TAG_subprogram ]
!1 = metadata !{i32 786451, metadata !47, metadata !2, metadata !"SVal", i32 1, i64 128, i64 64, i64 0, i32 0, null, metadata !4, i32 0, null, null, null} ; [ DW_TAG_structure_type ] [SVal] [line 1, size 128, align 64, offset 0] [def] [from ]

2
test/DebugInfo/2010-07-19-Crash.ll
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@ -25,6 +25,6 @@ entry:
!10 = metadata !{i32 524299, metadata !12, metadata !0, i32 3, i32 11, i32 0} ; [ DW_TAG_lexical_block ]
!11 = metadata !{i32 524334, metadata !12, metadata !1, metadata !"foo", metadata !"foo", metadata !"foo", i32 7, metadata !3, i1 true, i1 false, i32 0, i32 0, null, i1 false, i1 true, null, null, null, null, i32 0} ; [ DW_TAG_subprogram ]
!12 = metadata !{metadata !"one.c", metadata !"/private/tmp"}
!13 = metadata !{metadata !0, metadata !6, metadata !11}
!13 = metadata !{metadata !0}
!14 = metadata !{i32 0}
!15 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}

2
test/DebugInfo/X86/dbg-declare-arg.ll
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@ -122,6 +122,6 @@ entry:
!47 = metadata !{i32 2, i32 47, metadata !25, null}
!48 = metadata !{i32 2, i32 54, metadata !49, null}
!49 = metadata !{i32 786443, metadata !51, metadata !25, i32 2, i32 52, i32 2} ; [ DW_TAG_lexical_block ]
!50 = metadata !{metadata !0, metadata !10, metadata !14, metadata !19, metadata !22, metadata !25}
!50 = metadata !{metadata !19, metadata !22, metadata !25}
!51 = metadata !{metadata !"a.cc", metadata !"/private/tmp"}
!52 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}