was ignoring the legalized chain in this case, fixed SPASS on alpha


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25428 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 51675b8..6d14c6a 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -1469,7 +1469,7 @@
       // Expand to CopyFromReg if the target set 
       // StackPointerRegisterToSaveRestore.
       if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) {
-        Tmp1 = DAG.getCopyFromReg(Node->getOperand(0), SP, 
+        Tmp1 = DAG.getCopyFromReg(Tmp1, SP, 
                                   Node->getValueType(0));
         AddLegalizedOperand(SDOperand(Node, 0), Tmp1);
         AddLegalizedOperand(SDOperand(Node, 1), Tmp1.getValue(1));