Minor beautification: fold a couple of lines of code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7054 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp b/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp
index 613c16d..ffb45d6 100644
--- a/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp
+++ b/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp
@@ -200,11 +200,10 @@
   if (DEBUG_RA >= RA_DEBUG_Interference)
     cerr << "\n For call inst: " << *MInst;
 
-  ValueSet::const_iterator LIt = LVSetAft->begin();
-
   // for each live var in live variable set after machine inst
   //
-  for ( ; LIt != LVSetAft->end(); ++LIt) {
+  for (ValueSet::const_iterator LIt = LVSetAft->begin(), LEnd = LVSetAft->end();
+       LIt != LEnd; ++LIt) {
 
     //  get the live range corresponding to live var
     //