Use phi ranges to simplify code. No functionality change intended.

llvm-svn: 321585

1 files changed, 6 insertions, 6 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 71cb8cb78f6..68bbd62e132 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -8940,17 +8940,17 @@ SelectionDAGBuilder::HandlePHINodesInSuccessorBlocks(const BasicBlock *LLVMBB) {
     // At this point we know that there is a 1-1 correspondence between LLVM PHI
     // nodes and Machine PHI nodes, but the incoming operands have not been
     // emitted yet.
-    for (BasicBlock::const_iterator I = SuccBB->begin();
-         const PHINode *PN = dyn_cast<PHINode>(I); ++I) {
+    for (const PHINode &PN : SuccBB->phis()) {
       // Ignore dead phi's.
-      if (PN->use_empty()) continue;
+      if (PN.use_empty())
+        continue;
 
       // Skip empty types
-      if (PN->getType()->isEmptyTy())
+      if (PN.getType()->isEmptyTy())
         continue;
 
       unsigned Reg;
-      const Value *PHIOp = PN->getIncomingValueForBlock(LLVMBB);
+      const Value *PHIOp = PN.getIncomingValueForBlock(LLVMBB);
 
       if (const Constant *C = dyn_cast<Constant>(PHIOp)) {
         unsigned &RegOut = ConstantsOut[C];
@@ -8977,7 +8977,7 @@ SelectionDAGBuilder::HandlePHINodesInSuccessorBlocks(const BasicBlock *LLVMBB) {
       // the input for this MBB.
       SmallVector<EVT, 4> ValueVTs;
       const TargetLowering &TLI = DAG.getTargetLoweringInfo();
-      ComputeValueVTs(TLI, DAG.getDataLayout(), PN->getType(), ValueVTs);
+      ComputeValueVTs(TLI, DAG.getDataLayout(), PN.getType(), ValueVTs);
       for (unsigned vti = 0, vte = ValueVTs.size(); vti != vte; ++vti) {
         EVT VT = ValueVTs[vti];
         unsigned NumRegisters = TLI.getNumRegisters(*DAG.getContext(), VT);