1 files changed, 2 insertions, 21 deletions
diff --git a/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp b/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
index 59ddf3b93e9..1845b3c2cc0 100644
--- a/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
+++ b/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
@@ -685,25 +685,6 @@ bool X86DAGToDAGISel::MatchAddress(SDValue N, X86ISelAddressMode &AM) {
   return false;
 }
 
-/// isLogicallyAddWithConstant - Return true if this node is semantically an
-/// add of a value with a constantint.
-static bool isLogicallyAddWithConstant(SDValue V, SelectionDAG *CurDAG) {
-  // Check for (add x, Cst)
-  if (V->getOpcode() == ISD::ADD)
-    return isa<ConstantSDNode>(V->getOperand(1));
-
-  // Check for (or x, Cst), where Cst & x == 0.
-  if (V->getOpcode() != ISD::OR ||
-      !isa<ConstantSDNode>(V->getOperand(1)))
-    return false;
-  
-  // Handle "X | C" as "X + C" iff X is known to have C bits clear.
-  ConstantSDNode *CN = cast<ConstantSDNode>(V->getOperand(1));
-    
-  // Check to see if the LHS & C is zero.
-  return CurDAG->MaskedValueIsZero(V->getOperand(0), CN->getAPIntValue());
-}
-
 bool X86DAGToDAGISel::MatchAddressRecursively(SDValue N, X86ISelAddressMode &AM,
                                               unsigned Depth) {
   bool is64Bit = Subtarget->is64Bit();
@@ -789,7 +770,7 @@ bool X86DAGToDAGISel::MatchAddressRecursively(SDValue N, X86ISelAddressMode &AM,
         // Okay, we know that we have a scale by now.  However, if the scaled
         // value is an add of something and a constant, we can fold the
         // constant into the disp field here.
-        if (isLogicallyAddWithConstant(ShVal, CurDAG)) {
+        if (CurDAG->isBaseWithConstantOffset(ShVal)) {
           AM.IndexReg = ShVal.getNode()->getOperand(0);
           ConstantSDNode *AddVal =
             cast<ConstantSDNode>(ShVal.getNode()->getOperand(1));
@@ -964,7 +945,7 @@ bool X86DAGToDAGISel::MatchAddressRecursively(SDValue N, X86ISelAddressMode &AM,
 
   case ISD::OR:
     // Handle "X | C" as "X + C" iff X is known to have C bits clear.
-    if (isLogicallyAddWithConstant(N, CurDAG)) {
+    if (CurDAG->isBaseWithConstantOffset(N)) {
       X86ISelAddressMode Backup = AM;
       ConstantSDNode *CN = cast<ConstantSDNode>(N.getOperand(1));
       uint64_t Offset = CN->getSExtValue();