zap unused method. x86 is the only user and already has a more powerfull version

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112571 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/CodeGen/SelectionDAG.h b/include/llvm/CodeGen/SelectionDAG.h
index de49d184131d8c37a31837bef40f216d8eac717d..7723fa00e90dad663a1caf8546b3a97b71504e81 100644 (file)
--- a/include/llvm/CodeGen/SelectionDAG.h
+++ b/include/llvm/CodeGen/SelectionDAG.h
@@ -977,10 +977,6 @@ public:
   /// been verified as a debug information descriptor.
   bool isVerifiedDebugInfoDesc(SDValue Op) const;
 
-  /// getShuffleScalarElt - Returns the scalar element that will make up the ith
-  /// element of the result of the vector shuffle.
-  SDValue getShuffleScalarElt(const ShuffleVectorSDNode *N, unsigned Idx);
-
   /// UnrollVectorOp - Utility function used by legalize and lowering to
   /// "unroll" a vector operation by splitting out the scalars and operating
   /// on each element individually.  If the ResNE is 0, fully unroll the vector

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 65f5edca8ecd3f746190af797c7ab30f7e783193..ad06ebda5b007cc4aee77c0eecaf090c80c3a9d1 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2281,35 +2281,6 @@ bool SelectionDAG::isVerifiedDebugInfoDesc(SDValue Op) const {
 }
 
 
-/// getShuffleScalarElt - Returns the scalar element that will make up the ith
-/// element of the result of the vector shuffle.
-SDValue SelectionDAG::getShuffleScalarElt(const ShuffleVectorSDNode *N,
-                                          unsigned i) {
-  EVT VT = N->getValueType(0);
-  if (N->getMaskElt(i) < 0)
-    return getUNDEF(VT.getVectorElementType());
-  unsigned Index = N->getMaskElt(i);
-  unsigned NumElems = VT.getVectorNumElements();
-  SDValue V = (Index < NumElems) ? N->getOperand(0) : N->getOperand(1);
-  Index %= NumElems;
-
-  if (V.getOpcode() == ISD::BIT_CONVERT) {
-    V = V.getOperand(0);
-    EVT VVT = V.getValueType();
-    if (!VVT.isVector() || VVT.getVectorNumElements() != (unsigned)NumElems)
-      return SDValue();
-  }
-  if (V.getOpcode() == ISD::SCALAR_TO_VECTOR)
-    return (Index == 0) ? V.getOperand(0)
-                      : getUNDEF(VT.getVectorElementType());
-  if (V.getOpcode() == ISD::BUILD_VECTOR)
-    return V.getOperand(Index);
-  if (const ShuffleVectorSDNode *SVN = dyn_cast<ShuffleVectorSDNode>(V))
-    return getShuffleScalarElt(SVN, Index);
-  return SDValue();
-}
-
-
 /// getNode - Gets or creates the specified node.
 ///
 SDValue SelectionDAG::getNode(unsigned Opcode, DebugLoc DL, EVT VT) {