// If this is the entry block, emit arguments.
const Function &F = *LLVMBB->getParent();
SelectionDAG &DAG = SDB->DAG;
- SDValue OldRoot = DAG.getRoot();
DebugLoc dl = SDB->getCurDebugLoc();
const TargetData *TD = TLI.getTargetData();
SmallVector<ISD::InputArg, 16> Ins;