4 files changed, 5 insertions, 5 deletions
diff --git a/lib/CodeGen/LiveInterval.cpp b/lib/CodeGen/LiveInterval.cpp
index 0f5de9257a..ff430d71c7 100644
--- a/lib/CodeGen/LiveInterval.cpp
+++ b/lib/CodeGen/LiveInterval.cpp
@@ -547,7 +547,7 @@ void LiveInterval::MergeValueInAsValue(const LiveInterval &RHS,
 /// used with an unknown definition value.
 void LiveInterval::MergeInClobberRanges(const LiveInterval &Clobbers,
                                         BumpPtrAllocator &VNInfoAllocator) {
-  if (Clobbers.begin() == Clobbers.end()) return;
+  if (Clobbers.empty()) return;
   
   // Find a value # to use for the clobber ranges.  If there is already a value#
   // for unknown values, use it.
diff --git a/lib/CodeGen/LoopAligner.cpp b/lib/CodeGen/LoopAligner.cpp
index 1888391d5e..44f5bb461d 100644
--- a/lib/CodeGen/LoopAligner.cpp
+++ b/lib/CodeGen/LoopAligner.cpp
@@ -46,7 +46,7 @@ FunctionPass *llvm::createLoopAlignerPass() { return new LoopAligner(); }
 bool LoopAligner::runOnMachineFunction(MachineFunction &MF) {
   const MachineLoopInfo *MLI = &getAnalysis<MachineLoopInfo>();
 
-  if (MLI->begin() == MLI->end())
+  if (MLI->empty())
     return false;  // No loops.
 
   const TargetLowering *TLI = MF.getTarget().getTargetLowering();
diff --git a/lib/CodeGen/SimpleRegisterCoalescing.cpp b/lib/CodeGen/SimpleRegisterCoalescing.cpp
index b3e3409da3..72db79dee4 100644
--- a/lib/CodeGen/SimpleRegisterCoalescing.cpp
+++ b/lib/CodeGen/SimpleRegisterCoalescing.cpp
@@ -1852,7 +1852,7 @@ void SimpleRegisterCoalescing::joinIntervals() {
     JoinQueue = new JoinPriorityQueue<CopyRecSort>(this);
 
   std::vector<CopyRec> TryAgainList;
-  if (loopInfo->begin() == loopInfo->end()) {
+  if (loopInfo->empty()) {
     // If there are no loops in the function, join intervals in function order.
     for (MachineFunction::iterator I = mf_->begin(), E = mf_->end();
          I != E; ++I)
@@ -2049,7 +2049,7 @@ SimpleRegisterCoalescing::TurnCopyIntoImpDef(MachineBasicBlock::iterator &I,
   CopyMI->setDesc(tii_->get(TargetInstrInfo::IMPLICIT_DEF));
   for (int i = CopyMI->getNumOperands() - 1, e = 0; i > e; --i)
     CopyMI->RemoveOperand(i);
-  bool NoUse = mri_->use_begin(SrcReg) == mri_->use_end();
+  bool NoUse = mri_->use_empty(SrcReg);
   if (NoUse) {
     for (MachineRegisterInfo::reg_iterator I = mri_->reg_begin(SrcReg),
            E = mri_->reg_end(); I != E; ) {
diff --git a/lib/CodeGen/StrongPHIElimination.cpp b/lib/CodeGen/StrongPHIElimination.cpp
index 37f54ce93a..9f59417b5d 100644
--- a/lib/CodeGen/StrongPHIElimination.cpp
+++ b/lib/CodeGen/StrongPHIElimination.cpp
@@ -848,7 +848,7 @@ void StrongPHIElimination::mergeLiveIntervals(unsigned primary,
     RHS.removeValNo(*VI);
   }
   
-  if (RHS.begin() == RHS.end())
+  if (RHS.empty())
     LI.removeInterval(RHS.reg);
 }