diff --git a/llvm/lib/CodeGen/MachineFunction.cpp b/llvm/lib/CodeGen/MachineFunction.cpp
index 511f4aed4cdd..97b86cb876dd 100644
--- a/llvm/lib/CodeGen/MachineFunction.cpp
+++ b/llvm/lib/CodeGen/MachineFunction.cpp
@@ -453,8 +453,7 @@ MCSymbol *MachineFunction::getJTISymbol(unsigned JTI, MCContext &Ctx,
                                         bool isLinkerPrivate) const {
   assert(JumpTableInfo && "No jump tables");
   
-  const std::vector<MachineJumpTableEntry> &JTs =JumpTableInfo->getJumpTables();
-  assert(JTI < JTs.size() && "Invalid JTI!");
+  assert(JTI < JumpTableInfo->getJumpTables().size() && "Invalid JTI!");
   const MCAsmInfo &MAI = *getTarget().getMCAsmInfo();
   
   const char *Prefix = isLinkerPrivate ? MAI.getLinkerPrivateGlobalPrefix() :
diff --git a/llvm/lib/CodeGen/PBQP/Heuristics/Briggs.h b/llvm/lib/CodeGen/PBQP/Heuristics/Briggs.h
index 65f22cbc0435..c09ad74b198a 100644
--- a/llvm/lib/CodeGen/PBQP/Heuristics/Briggs.h
+++ b/llvm/lib/CodeGen/PBQP/Heuristics/Briggs.h
@@ -18,6 +18,7 @@
 #ifndef LLVM_CODEGEN_PBQP_HEURISTICS_BRIGGS_H
 #define LLVM_CODEGEN_PBQP_HEURISTICS_BRIGGS_H
 
+#include "llvm/Support/Compiler.h"
 #include "../HeuristicSolver.h"
 #include "../HeuristicBase.h"
 
@@ -273,7 +274,7 @@ namespace PBQP {
         if (!nd.isHeuristic)
           return;
 
-        EdgeData &ed = getHeuristicEdgeData(eItr);
+        EdgeData &ed ATTRIBUTE_UNUSED = getHeuristicEdgeData(eItr);
 
         assert(ed.isUpToDate && "Edge data is not up to date.");