[llvm] r313687 - CodeGen: use range based for loops (NFC)

[Saleem Abdulrasool via llvm-commits]

Author: compnerd
Date: Tue Sep 19 15:10:20 2017
New Revision: 313687

URL: http://llvm.org/viewvc/llvm-project?rev=313687&view=rev
Log:
CodeGen: use range based for loops (NFC)

Simplify the RPOT traversal by using a range based for loop for the
iterator dereference.

Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp?rev=313687&r1=313686&r2=313687&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp Tue Sep 19 15:10:20 2017
@@ -1182,12 +1182,7 @@ static void propagateSwiftErrorVRegs(Fun
 
   // For each machine basic block in reverse post order.
   ReversePostOrderTraversal<MachineFunction *> RPOT(FuncInfo->MF);
-  for (ReversePostOrderTraversal<MachineFunction *>::rpo_iterator
-           It = RPOT.begin(),
-           E = RPOT.end();
-       It != E; ++It) {
-    MachineBasicBlock *MBB = *It;
-
+  for (MachineBasicBlock *MBB : RPOT) {
     // For each swifterror value in the function.
     for(const auto *SwiftErrorVal : FuncInfo->SwiftErrorVals) {
       auto Key = std::make_pair(MBB, SwiftErrorVal);