Vendor import of llvm trunk r161861:

http://llvm.org/svn/llvm-project/llvm/trunk@161861

1 files changed, 27 insertions, 0 deletions

diff --git a/include/llvm/CodeGen/SelectionDAGNodes.h b/include/llvm/CodeGen/SelectionDAGNodes.h
index f8248b8..0dfb394 100644
--- a/include/llvm/CodeGen/SelectionDAGNodes.h
+++ b/include/llvm/CodeGen/SelectionDAGNodes.h
@@ -74,6 +74,10 @@ namespace ISD {
   /// ISD::SCALAR_TO_VECTOR node or a BUILD_VECTOR node where only the low
   /// element is not an undef.
   bool isScalarToVector(const SDNode *N);
+
+  /// allOperandsUndef - Return true if the node has at least one operand
+  /// and all operands of the specified node are ISD::UNDEF.
+  bool allOperandsUndef(const SDNode *N);
 }  // end llvm:ISD namespace
 
 //===----------------------------------------------------------------------===//
@@ -1339,6 +1343,29 @@ public:
   }
 };
 
+/// Completely target-dependent object reference.
+class TargetIndexSDNode : public SDNode {
+  unsigned char TargetFlags;
+  int Index;
+  int64_t Offset;
+  friend class SelectionDAG;
+public:
+
+  TargetIndexSDNode(int Idx, EVT VT, int64_t Ofs, unsigned char TF)
+    : SDNode(ISD::TargetIndex, DebugLoc(), getSDVTList(VT)),
+      TargetFlags(TF), Index(Idx), Offset(Ofs) {}
+public:
+
+  unsigned char getTargetFlags() const { return TargetFlags; }
+  int getIndex() const { return Index; }
+  int64_t getOffset() const { return Offset; }
+
+  static bool classof(const TargetIndexSDNode*) { return true; }
+  static bool classof(const SDNode *N) {
+    return N->getOpcode() == ISD::TargetIndex;
+  }
+};
+
 class BasicBlockSDNode : public SDNode {
   MachineBasicBlock *MBB;
   friend class SelectionDAG;