Add iterator range MachineRegisterInfo::liveins(), adopt users, NFC

llvm-svn: 315927

2 files changed, 7 insertions, 8 deletions

diff --git a/llvm/lib/CodeGen/MIRPrinter.cpp b/llvm/lib/CodeGen/MIRPrinter.cpp
index ae1bb36c6aa..528140234ee 100644
--- a/llvm/lib/CodeGen/MIRPrinter.cpp
+++ b/llvm/lib/CodeGen/MIRPrinter.cpp
@@ -297,11 +297,11 @@ void MIRPrinter::convert(yaml::MachineFunction &MF,
   }
 
   // Print the live ins.
-  for (auto I = RegInfo.livein_begin(), E = RegInfo.livein_end(); I != E; ++I) {
+  for (std::pair<unsigned, unsigned> LI : RegInfo.liveins()) {
     yaml::MachineFunctionLiveIn LiveIn;
-    printReg(I->first, LiveIn.Register, TRI);
-    if (I->second)
-      printReg(I->second, LiveIn.VirtualRegister, TRI);
+    printReg(LI.first, LiveIn.Register, TRI);
+    if (LI.second)
+      printReg(LI.second, LiveIn.VirtualRegister, TRI);
     MF.LiveIns.push_back(LiveIn);
   }
 
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 1f3023b307c..5311ef437e9 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -494,10 +494,9 @@ bool SelectionDAGISel::runOnMachineFunction(MachineFunction &mf) {
 
   DenseMap<unsigned, unsigned> LiveInMap;
   if (!FuncInfo->ArgDbgValues.empty())
-    for (MachineRegisterInfo::livein_iterator LI = RegInfo->livein_begin(),
-           E = RegInfo->livein_end(); LI != E; ++LI)
-      if (LI->second)
-        LiveInMap.insert(std::make_pair(LI->first, LI->second));
+    for (std::pair<unsigned, unsigned> LI : RegInfo->liveins())
+      if (LI.second)
+        LiveInMap.insert(LI);
 
   // Insert DBG_VALUE instructions for function arguments to the entry block.
   for (unsigned i = 0, e = FuncInfo->ArgDbgValues.size(); i != e; ++i) {