Add a chain to FORMAL_ARGUMENTS. This is a minimal port of the X86 backend,

it doesn't currently use/maintain the chain properly.  Also, make the
X86ISelLowering.cpp file 80-col clean.

llvm-svn: 28320

1 files changed, 4 insertions, 2 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 1cac1341872..b6472323708 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -2349,6 +2349,7 @@ std::vector<SDOperand>
 TargetLowering::LowerArguments(Function &F, SelectionDAG &DAG) {
   // Add CC# and isVararg as operands to the FORMAL_ARGUMENTS node.
   std::vector<SDOperand> Ops;
+  Ops.push_back(DAG.getRoot());
   Ops.push_back(DAG.getConstant(F.getCallingConv(), getPointerTy()));
   Ops.push_back(DAG.getConstant(F.isVarArg(), getPointerTy()));
 
@@ -2393,11 +2394,12 @@ TargetLowering::LowerArguments(Function &F, SelectionDAG &DAG) {
     }
   }
 
-  if (RetVals.size() == 0)
-    RetVals.push_back(MVT::isVoid);
+  RetVals.push_back(MVT::Other);
   
   // Create the node.
   SDNode *Result = DAG.getNode(ISD::FORMAL_ARGUMENTS, RetVals, Ops).Val;
+  
+  DAG.setRoot(SDOperand(Result, Result->getNumValues()-1));
 
   // Set up the return result vector.
   Ops.clear();