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| author | Bill Wendling <isanbard@gmail.com> | 2012-11-07 05:19:04 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2012-11-07 05:19:04 +0000 |
| commit | 168c190c581d21d50edefeedebe38400a12845e1 (patch) | |
| tree | d3be950b1e79769734639b71498f98f45deb5b02 /lib/CodeGen | |
| parent | a4c769311877916cc73994d318d5e962228bf3cd (diff) | |
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
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 5 |
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); |