Use empty() instead of begin() == end().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54780 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LoopAligner.cpp b/lib/CodeGen/LoopAligner.cpp
index 1888391..44f5bb4 100644
--- a/lib/CodeGen/LoopAligner.cpp
+++ b/lib/CodeGen/LoopAligner.cpp
@@ -46,7 +46,7 @@
 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();