From: Chris Lattner <sabre@nondot.org>
Date: Mon, 13 Feb 2006 08:54:46 +0000 (+0000)
Subject: Add a method
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6a5b6d7633c96c72ca7d5f8ba0c855e4690ada04;p=oota-llvm.git

Add a method


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26141 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/CodeGen/SelectionDAG.h b/include/llvm/CodeGen/SelectionDAG.h
index df695010bf1..f928c6be6b3 100644
--- a/include/llvm/CodeGen/SelectionDAG.h
+++ b/include/llvm/CodeGen/SelectionDAG.h
@@ -196,6 +196,18 @@ public:
   /// getZeroExtendInReg - Return the expression required to zero extend the Op
   /// value assuming it was the smaller SrcTy value.
   SDOperand getZeroExtendInReg(SDOperand Op, MVT::ValueType SrcTy);
+  
+  /// getCALLSEQ_START - Return a new CALLSEQ_START node, which always must have
+  /// a flag result (to ensure it's not CSE'd).
+  SDOperand getCALLSEQ_START(SDOperand Chain, SDOperand Op) {
+    std::vector<MVT::ValueType> ResultTys;
+    ResultTys.push_back(MVT::Other);
+    ResultTys.push_back(MVT::Flag);
+    std::vector<SDOperand> Ops;
+    Ops.push_back(Chain);
+    Ops.push_back(Op);
+    return getNode(ISD::CALLSEQ_START, ResultTys, Ops);
+  }
 
   /// getNode - Gets or creates the specified node.
   ///