Remove line and file from DINamespace.

Fixes the issue highlighted in
http://lists.llvm.org/pipermail/cfe-dev/2014-June/037500.html.

The DW_AT_decl_file and DW_AT_decl_line attributes on namespaces can
prevent LLVM from uniquing types that are in the same namespace. They
also don't carry any meaningful information.

rdar://problem/17484998
Differential Revision: https://reviews.llvm.org/D32648

llvm-svn: 301706

2 files changed, 0 insertions, 6 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
index f2e13992883..8d25def7772 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
@@ -375,10 +375,6 @@ void DwarfUnit::addSourceLine(DIE &Die, const DIObjCProperty *Ty) {
   addSourceLine(Die, Ty->getLine(), Ty->getFilename(), Ty->getDirectory());
 }
 
-void DwarfUnit::addSourceLine(DIE &Die, const DINamespace *NS) {
-  addSourceLine(Die, NS->getLine(), NS->getFilename(), NS->getDirectory());
-}
-
 /* Byref variables, in Blocks, are declared by the programmer as "SomeType
    VarName;", but the compiler creates a __Block_byref_x_VarName struct, and
    gives the variable VarName either the struct, or a pointer to the struct, as
@@ -1085,7 +1081,6 @@ DIE *DwarfUnit::getOrCreateNameSpace(const DINamespace *NS) {
     Name = "(anonymous namespace)";
   DD->addAccelNamespace(Name, NDie);
   addGlobalName(Name, NDie, NS->getScope());
-  addSourceLine(NDie, NS);
   if (NS->getExportSymbols())
     addFlag(NDie, dwarf::DW_AT_export_symbols);
   return &NDie;
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h
index 3bf4979030a..8fc841703e2 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h
@@ -210,7 +210,6 @@ public:
   void addSourceLine(DIE &Die, const DIGlobalVariable *G);
   void addSourceLine(DIE &Die, const DISubprogram *SP);
   void addSourceLine(DIE &Die, const DIType *Ty);
-  void addSourceLine(DIE &Die, const DINamespace *NS);
   void addSourceLine(DIE &Die, const DIObjCProperty *Ty);
 
   /// Add constant value entry in variable DIE.