Do not print empty DW_AT_comp_dir.

[oota-llvm.git] / lib / CodeGen / AsmPrinter / DwarfWriter.cpp

diff --git a/lib/CodeGen/AsmPrinter/DwarfWriter.cpp b/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
index 4476be3bb3f044b79a68ba885ece4b309f8dbe72..e41e4cbb6e0957bd4669a8b858189408b9ea20f0 100644 (file)
--- a/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
@@ -1805,7 +1805,8 @@ private:
     AddString(Die, DW_AT_producer,  DW_FORM_string, UnitDesc->getProducer());
     AddUInt  (Die, DW_AT_language,  DW_FORM_data1,  UnitDesc->getLanguage());
     AddString(Die, DW_AT_name,      DW_FORM_string, UnitDesc->getFileName());
-    AddString(Die, DW_AT_comp_dir,  DW_FORM_string, UnitDesc->getDirectory());
+    if (!UnitDesc->getDirectory().empty())
+      AddString(Die, DW_AT_comp_dir,  DW_FORM_string, UnitDesc->getDirectory());
 
     // Construct compile unit.
     CompileUnit *Unit = new CompileUnit(UnitDesc, ID, Die);