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path: root/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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Diffstat (limited to 'lib/CodeGen/AsmPrinter/DwarfDebug.cpp')
-rw-r--r--lib/CodeGen/AsmPrinter/DwarfDebug.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index e8c807ac5f..367b523079 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -307,8 +307,11 @@ DIE *DwarfDebug::updateSubprogramScopeDIE(CompileUnit *SPCU,
assert(SPDie && "Unable to find subprogram DIE!");
DISubprogram SP(SPNode);
- // Pick up abstract subprogram DIE.
+ // If we're updating an abstract DIE, then we will be adding the children and
+ // object pointer later on. But what we don't want to do is process the
+ // concrete DIE twice.
if (DIE *AbsSPDIE = AbstractSPDies.lookup(SPNode)) {
+ // Pick up abstract subprogram DIE.
SPDie = new DIE(dwarf::DW_TAG_subprogram);
SPCU->addDIEEntry(SPDie, dwarf::DW_AT_abstract_origin,
dwarf::DW_FORM_ref4, AbsSPDIE);