diff --git a/lib/CodeGen/MachineModuleInfo.cpp b/lib/CodeGen/MachineModuleInfo.cpp
index 6d285bd..2446bff 100644
--- a/lib/CodeGen/MachineModuleInfo.cpp
+++ b/lib/CodeGen/MachineModuleInfo.cpp
@@ -670,7 +670,7 @@
 
 /// getAnchorString - Return a string used to label this descriptor's anchor.
 ///
-const char *CompileUnitDesc::AnchorString = "llvm.dbg.compile_units";
+const char *const CompileUnitDesc::AnchorString = "llvm.dbg.compile_units";
 const char *CompileUnitDesc::getAnchorString() const {
   return AnchorString;
 }
@@ -1120,7 +1120,7 @@
 
 /// getAnchorString - Return a string used to label this descriptor's anchor.
 ///
-const char *GlobalVariableDesc::AnchorString = "llvm.dbg.global_variables";
+const char *const GlobalVariableDesc::AnchorString = "llvm.dbg.global_variables";
 const char *GlobalVariableDesc::getAnchorString() const {
   return AnchorString;
 }
@@ -1174,7 +1174,7 @@
 
 /// getAnchorString - Return a string used to label this descriptor's anchor.
 ///
-const char *SubprogramDesc::AnchorString = "llvm.dbg.subprograms";
+const char *const SubprogramDesc::AnchorString = "llvm.dbg.subprograms";
 const char *SubprogramDesc::getAnchorString() const {
   return AnchorString;
 }
diff --git a/lib/CodeGen/PseudoSourceValue.cpp b/lib/CodeGen/PseudoSourceValue.cpp
index 5c5b1d6..c62e49a 100644
--- a/lib/CodeGen/PseudoSourceValue.cpp
+++ b/lib/CodeGen/PseudoSourceValue.cpp
@@ -29,7 +29,7 @@
   const PseudoSourceValue *PseudoSourceValue::getJumpTable()
   { return &(*PSVs)[4]; }
 
-  static const char *PSVNames[] = {
+  static const char *const PSVNames[] = {
     "FixedStack",
     "Stack",
     "GOT",
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
index 94d3a6d..048ee2c 100644
--- a/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
@@ -221,8 +221,8 @@
     if (SU->Node->isTargetOpcode()) {
       unsigned SchedClass =
         TII->get(SU->Node->getTargetOpcode()).getSchedClass();
-      InstrStage *S = InstrItins.begin(SchedClass);
-      InstrStage *E = InstrItins.end(SchedClass);
+      const InstrStage *S = InstrItins.begin(SchedClass);
+      const InstrStage *E = InstrItins.end(SchedClass);
       for (; S != E; ++S)
         SU->Latency += S->Cycles;
     }
@@ -230,8 +230,8 @@
       SDNode *FNode = SU->FlaggedNodes[i];
       if (FNode->isTargetOpcode()) {
         unsigned SchedClass =TII->get(FNode->getTargetOpcode()).getSchedClass();
-        InstrStage *S = InstrItins.begin(SchedClass);
-        InstrStage *E = InstrItins.end(SchedClass);
+        const InstrStage *S = InstrItins.begin(SchedClass);
+        const InstrStage *E = InstrItins.end(SchedClass);
         for (; S != E; ++S)
           SU->Latency += S->Cycles;
       }