SelectionDAGBuilder: Fix SPDescriptor not resetting GuardReg

[oota-llvm.git] / lib / CodeGen / SelectionDAG / ScheduleDAGFast.cpp

diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
index 7ef213a0a38d6844aac0114078dd9fffe44bd982..34e1a7001082c81394e1d18a2bea3ac515ba5a58 100644 (file)
--- a/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
@@ -227,8 +227,7 @@ SUnit *ScheduleDAGFast::CopyAndMoveSuccessors(SUnit *SU) {
     else if (VT == MVT::Other)
       TryUnfold = true;
   }
-  for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
-    const SDValue &Op = N->getOperand(i);
+  for (const SDValue &Op : N->op_values()) {
     MVT VT = Op.getNode()->getSimpleValueType(Op.getResNo());
     if (VT == MVT::Glue)
       return nullptr;
@@ -460,7 +459,7 @@ static bool CheckForLiveRegDef(SUnit *SU, unsigned Reg,
   bool Added = false;
   for (MCRegAliasIterator AI(Reg, TRI, true); AI.isValid(); ++AI) {
     if (LiveRegDefs[*AI] && LiveRegDefs[*AI] != SU) {
-      if (RegAdded.insert(*AI)) {
+      if (RegAdded.insert(*AI).second) {
         LRegs.push_back(*AI);
         Added = true;
       }
@@ -726,9 +725,8 @@ void ScheduleDAGLinearize::Schedule() {
 
   SmallVector<SDNode*, 8> Glues;
   unsigned DAGSize = 0;
-  for (SelectionDAG::allnodes_iterator I = DAG->allnodes_begin(),
-         E = DAG->allnodes_end(); I != E; ++I) {
-    SDNode *N = I;
+  for (SDNode &Node : DAG->allnodes()) {
+    SDNode *N = &Node;
 
     // Use node id to record degree.
     unsigned Degree = N->use_size();