diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 04bb1d456f8..c48cab7d7d1 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -502,7 +502,7 @@ void DwarfDebug::addBlock(DIE *Die, unsigned Attribute, unsigned Form,
 
 /// addSourceLine - Add location information to specified debug information
 /// entry.
-void DwarfDebug::addSourceLine(DIE *Die, const DIVariable V) {
+void DwarfDebug::addSourceLine(DIE *Die, DIVariable V) {
   // Verify variable.
   if (!V.Verify())
     return;
@@ -517,7 +517,7 @@ void DwarfDebug::addSourceLine(DIE *Die, const DIVariable V) {
 
 /// addSourceLine - Add location information to specified debug information
 /// entry.
-void DwarfDebug::addSourceLine(DIE *Die, const DIGlobalVariable G) {
+void DwarfDebug::addSourceLine(DIE *Die, DIGlobalVariable G) {
   // Verify global variable.
   if (!G.Verify())
     return;
@@ -532,7 +532,7 @@ void DwarfDebug::addSourceLine(DIE *Die, const DIGlobalVariable G) {
 
 /// addSourceLine - Add location information to specified debug information
 /// entry.
-void DwarfDebug::addSourceLine(DIE *Die, const DISubprogram SP) {
+void DwarfDebug::addSourceLine(DIE *Die, DISubprogram SP) {
   // Verify subprogram.
   if (!SP.Verify())
     return;
@@ -552,7 +552,7 @@ void DwarfDebug::addSourceLine(DIE *Die, const DISubprogram SP) {
 
 /// addSourceLine - Add location information to specified debug information
 /// entry.
-void DwarfDebug::addSourceLine(DIE *Die, const DIType Ty) {
+void DwarfDebug::addSourceLine(DIE *Die, DIType Ty) {
   // Verify type.
   if (!Ty.Verify())
     return;
@@ -569,7 +569,7 @@ void DwarfDebug::addSourceLine(DIE *Die, const DIType Ty) {
 
 /// addSourceLine - Add location information to specified debug information
 /// entry.
-void DwarfDebug::addSourceLine(DIE *Die, const DINameSpace NS) {
+void DwarfDebug::addSourceLine(DIE *Die, DINameSpace NS) {
   // Verify namespace.
   if (!NS.Verify())
     return;
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.h b/lib/CodeGen/AsmPrinter/DwarfDebug.h
index 96f2f2cb2d0..989cd088494 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -338,11 +338,11 @@ private:
 
   /// addSourceLine - Add location information to specified debug information
   /// entry.
-  void addSourceLine(DIE *Die, const DIVariable V);
-  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, DIVariable V);
+  void addSourceLine(DIE *Die, DIGlobalVariable G);
+  void addSourceLine(DIE *Die, DISubprogram SP);
+  void addSourceLine(DIE *Die, DIType Ty);
+  void addSourceLine(DIE *Die, DINameSpace NS);
 
   /// addAddress - Add an address attribute to a die based on the location
   /// provided.