Simplify this code; use a while instead of an if and a do-while.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67400 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
index ea9f47b..967a8ce 100644
--- a/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
@@ -105,18 +105,15 @@
// See if anything is flagged to this node, if so, add them to flagged
// nodes. Nodes can have at most one flag input and one flag output. Flags
- // are required the be the last operand and result of a node.
+ // are required to be the last operand and result of a node.
// Scan up to find flagged preds.
SDNode *N = NI;
- if (N->getNumOperands() &&
- N->getOperand(N->getNumOperands()-1).getValueType() == MVT::Flag) {
- do {
- N = N->getOperand(N->getNumOperands()-1).getNode();
- assert(N->getNodeId() == -1 && "Node already inserted!");
- N->setNodeId(NodeSUnit->NodeNum);
- } while (N->getNumOperands() &&
- N->getOperand(N->getNumOperands()-1).getValueType()== MVT::Flag);
+ while (N->getNumOperands() &&
+ N->getOperand(N->getNumOperands()-1).getValueType() == MVT::Flag) {
+ N = N->getOperand(N->getNumOperands()-1).getNode();
+ assert(N->getNodeId() == -1 && "Node already inserted!");
+ N->setNodeId(NodeSUnit->NodeNum);
}
// Scan down to find any flagged succs.