3 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index a51291298b..2a979e19eb 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -125,6 +125,7 @@ void LiveIntervals::computeNumbering() {
          I != E; ++I) {
       bool inserted = mi2iMap_.insert(std::make_pair(I, MIIndex)).second;
       assert(inserted && "multiple MachineInstr -> index mappings");
+      inserted = true;
       i2miMap_.push_back(I);
       MIIndex += InstrSlots::NUM;
       FunctionSize++;
diff --git a/lib/CodeGen/LiveVariables.cpp b/lib/CodeGen/LiveVariables.cpp
index 9fe42f644d..ecfebc5511 100644
--- a/lib/CodeGen/LiveVariables.cpp
+++ b/lib/CodeGen/LiveVariables.cpp
@@ -678,6 +678,7 @@ void LiveVariables::removeVirtualRegistersKilled(MachineInstr *MI) {
       if (TargetRegisterInfo::isVirtualRegister(Reg)) {
         bool removed = getVarInfo(Reg).removeKill(MI);
         assert(removed && "kill not in register's VarInfo?");
+        removed = true;
       }
     }
   }
diff --git a/lib/CodeGen/LowerSubregs.cpp b/lib/CodeGen/LowerSubregs.cpp
index 6ee955d379..6d7c5ccee6 100644
--- a/lib/CodeGen/LowerSubregs.cpp
+++ b/lib/CodeGen/LowerSubregs.cpp
@@ -152,7 +152,9 @@ bool LowerSubregsInstructionPass::LowerInsert(MachineInstr *MI) {
           MI->getOperand(3).isImm() && "Invalid insert_subreg");
           
   unsigned DstReg = MI->getOperand(0).getReg();
+#ifndef NDEBUG
   unsigned SrcReg = MI->getOperand(1).getReg();
+#endif
   unsigned InsReg = MI->getOperand(2).getReg();
   unsigned SubIdx = MI->getOperand(3).getImm();