Mark unimplemented copy constructors and copy assignment operators as LLVM_DELETED_FU...

[oota-llvm.git] / lib / CodeGen / SelectionDAG / DAGCombiner.cpp

diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 45c38968ea22d9010e55d0c7793e8ceec8d9aa6f..186d09af6ce5da00c7e84d35e0b7995be0145aa1 100644 (file)
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -194,6 +194,7 @@ namespace {
     SDValue visitOR(SDNode *N);
     SDValue visitXOR(SDNode *N);
     SDValue SimplifyVBinOp(SDNode *N);
+    SDValue SimplifyVUnaryOp(SDNode *N);
     SDValue visitSHL(SDNode *N);
     SDValue visitSRA(SDNode *N);
     SDValue visitSRL(SDNode *N);
@@ -413,7 +414,7 @@ static char isNegatibleForFree(SDValue Op, bool LegalOperations,
         !TLI.isOperationLegalOrCustom(ISD::FSUB,  Op.getValueType()))
       return 0;
 
-    // fold (fsub (fadd A, B)) -> (fsub (fneg A), B)
+    // fold (fneg (fadd A, B)) -> (fsub (fneg A), B)
     if (char V = isNegatibleForFree(Op.getOperand(0), LegalOperations, TLI,
                                     Options, Depth + 1))
       return V;
@@ -5440,7 +5441,8 @@ SDValue DAGCombiner::visitBITCAST(SDNode *N) {
   // This often reduces constant pool loads.
   if (((N0.getOpcode() == ISD::FNEG && !TLI.isFNegFree(VT)) ||
        (N0.getOpcode() == ISD::FABS && !TLI.isFAbsFree(VT))) &&
-      N0.getNode()->hasOneUse() && VT.isInteger() && !VT.isVector()) {
+      N0.getNode()->hasOneUse() && VT.isInteger() &&
+      !VT.isVector() && !N0.getValueType().isVector()) {
     SDValue NewConv = DAG.getNode(ISD::BITCAST, N0.getDebugLoc(), VT,
                                   N0.getOperand(0));
     AddToWorkList(NewConv.getNode());
@@ -6409,6 +6411,11 @@ SDValue DAGCombiner::visitFNEG(SDNode *N) {
   SDValue N0 = N->getOperand(0);
   EVT VT = N->getValueType(0);
 
+  if (VT.isVector()) {
+    SDValue FoldedVOp = SimplifyVUnaryOp(N);
+    if (FoldedVOp.getNode()) return FoldedVOp;
+  }
+
   if (isNegatibleForFree(N0, LegalOperations, DAG.getTargetLoweringInfo(),
                          &DAG.getTarget().Options))
     return GetNegatedExpression(N0, DAG, LegalOperations);
@@ -6485,6 +6492,11 @@ SDValue DAGCombiner::visitFABS(SDNode *N) {
   ConstantFPSDNode *N0CFP = dyn_cast<ConstantFPSDNode>(N0);
   EVT VT = N->getValueType(0);
 
+  if (VT.isVector()) {
+    SDValue FoldedVOp = SimplifyVUnaryOp(N);
+    if (FoldedVOp.getNode()) return FoldedVOp;
+  }
+
   // fold (fabs c1) -> fabs(c1)
   if (N0CFP && VT != MVT::ppcf128)
     return DAG.getNode(ISD::FABS, N->getDebugLoc(), VT, N0);
@@ -8071,6 +8083,12 @@ SDValue DAGCombiner::visitBUILD_VECTOR(SDNode *N) {
       if (VecIn1.getValueType().getSizeInBits()*2 != VT.getSizeInBits())
         return SDValue();
 
+      // If the input vector type has a different base type to the output
+      // vector type, bail out.
+      if (VecIn1.getValueType().getVectorElementType() !=
+          VT.getVectorElementType())
+        return SDValue();
+
       // Widen the input vector by adding undef values.
       VecIn1 = DAG.getNode(ISD::CONCAT_VECTORS, N->getDebugLoc(), VT,
                            VecIn1, DAG.getUNDEF(VecIn1.getValueType()));
@@ -8461,6 +8479,44 @@ SDValue DAGCombiner::SimplifyVBinOp(SDNode *N) {
   return SDValue();
 }
 
+/// SimplifyVUnaryOp - Visit a binary vector operation, like FABS/FNEG.
+SDValue DAGCombiner::SimplifyVUnaryOp(SDNode *N) {
+  // After legalize, the target may be depending on adds and other
+  // binary ops to provide legal ways to construct constants or other
+  // things. Simplifying them may result in a loss of legality.
+  if (LegalOperations) return SDValue();
+
+  assert(N->getValueType(0).isVector() &&
+         "SimplifyVUnaryOp only works on vectors!");
+
+  SDValue N0 = N->getOperand(0);
+
+  if (N0.getOpcode() != ISD::BUILD_VECTOR)
+    return SDValue();
+
+  // Operand is a BUILD_VECTOR node, see if we can constant fold it.
+  SmallVector<SDValue, 8> Ops;
+  for (unsigned i = 0, e = N0.getNumOperands(); i != e; ++i) {
+    SDValue Op = N0.getOperand(i);
+    if (Op.getOpcode() != ISD::UNDEF &&
+        Op.getOpcode() != ISD::ConstantFP)
+      break;
+    EVT EltVT = Op.getValueType();
+    SDValue FoldOp = DAG.getNode(N->getOpcode(), N0.getDebugLoc(), EltVT, Op);
+    if (FoldOp.getOpcode() != ISD::UNDEF &&
+        FoldOp.getOpcode() != ISD::ConstantFP)
+      break;
+    Ops.push_back(FoldOp);
+    AddToWorkList(FoldOp.getNode());
+  }
+
+  if (Ops.size() != N0.getNumOperands())
+    return SDValue();
+
+  return DAG.getNode(ISD::BUILD_VECTOR, N->getDebugLoc(),
+                     N0.getValueType(), &Ops[0], Ops.size());
+}
+
 SDValue DAGCombiner::SimplifySelect(DebugLoc DL, SDValue N0,
                                     SDValue N1, SDValue N2){
   assert(N0.getOpcode() ==ISD::SETCC && "First argument must be a SetCC node!");
@@ -8924,7 +8980,7 @@ SDValue DAGCombiner::BuildUDIV(SDNode *N) {
 // to alias with anything but itself.  Provides base object and offset as
 // results.
 static bool FindBaseOffset(SDValue Ptr, SDValue &Base, int64_t &Offset,
-                           const GlobalValue *&GV, void *&CV) {
+                           const GlobalValue *&GV, const void *&CV) {
   // Assume it is a primitive operation.
   Base = Ptr; Offset = 0; GV = 0; CV = 0;
 
@@ -8949,8 +9005,8 @@ static bool FindBaseOffset(SDValue Ptr, SDValue &Base, int64_t &Offset,
   // for ConstantSDNodes since the same constant pool entry may be represented
   // by multiple nodes with different offsets.
   if (ConstantPoolSDNode *C = dyn_cast<ConstantPoolSDNode>(Base)) {
-    CV = C->isMachineConstantPoolEntry() ? (void *)C->getMachineCPVal()
-                                         : (void *)C->getConstVal();
+    CV = C->isMachineConstantPoolEntry() ? (const void *)C->getMachineCPVal()
+                                         : (const void *)C->getConstVal();
     Offset += C->getOffset();
     return false;
   }
@@ -8975,7 +9031,7 @@ bool DAGCombiner::isAlias(SDValue Ptr1, int64_t Size1,
   SDValue Base1, Base2;
   int64_t Offset1, Offset2;
   const GlobalValue *GV1, *GV2;
-  void *CV1, *CV2;
+  const void *CV1, *CV2;
   bool isFrameIndex1 = FindBaseOffset(Ptr1, Base1, Offset1, GV1, CV1);
   bool isFrameIndex2 = FindBaseOffset(Ptr2, Base2, Offset2, GV2, CV2);