From 168c190c581d21d50edefeedebe38400a12845e1 Mon Sep 17 00:00:00 2001 From: Bill Wendling Date: Wed, 7 Nov 2012 05:19:04 +0000 Subject: Add comment describing what's going on here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167525 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'lib/CodeGen') 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); -- cgit v1.2.3-70-g09d2