1 files changed, 102 insertions, 91 deletions

diff --git a/contrib/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/contrib/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index be54782..14f44cc 100644
--- a/contrib/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/contrib/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -151,8 +151,8 @@ bool ISD::isBuildVectorAllZeros(const SDNode *N) {
   if (N->getOpcode() != ISD::BUILD_VECTOR) return false;
 
   bool IsAllUndef = true;
-  for (unsigned i = 0, e = N->getNumOperands(); i < e; ++i) {
-    if (N->getOperand(i).getOpcode() == ISD::UNDEF)
+  for (const SDValue &Op : N->op_values()) {
+    if (Op.getOpcode() == ISD::UNDEF)
       continue;
     IsAllUndef = false;
     // Do not accept build_vectors that aren't all constants or which have non-0
@@ -163,12 +163,11 @@ bool ISD::isBuildVectorAllZeros(const SDNode *N) {
     // We only want to check enough bits to cover the vector elements, because
     // we care if the resultant vector is all zeros, not whether the individual
     // constants are.
-    SDValue Zero = N->getOperand(i);
     unsigned EltSize = N->getValueType(0).getVectorElementType().getSizeInBits();
-    if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Zero)) {
+    if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Op)) {
       if (CN->getAPIntValue().countTrailingZeros() < EltSize)
         return false;
-    } else if (ConstantFPSDNode *CFPN = dyn_cast<ConstantFPSDNode>(Zero)) {
+    } else if (ConstantFPSDNode *CFPN = dyn_cast<ConstantFPSDNode>(Op)) {
       if (CFPN->getValueAPF().bitcastToAPInt().countTrailingZeros() < EltSize)
         return false;
     } else
@@ -921,7 +920,7 @@ unsigned SelectionDAG::getEVTAlignment(EVT VT) const {
                    PointerType::get(Type::getInt8Ty(*getContext()), 0) :
                    VT.getTypeForEVT(*getContext());
 
-  return TLI->getDataLayout()->getABITypeAlignment(Ty);
+  return getDataLayout().getABITypeAlignment(Ty);
 }
 
 // EntryNode could meaningfully have debug info if we can find it...
@@ -1184,7 +1183,7 @@ SDValue SelectionDAG::getConstant(const ConstantInt &Val, SDLoc DL, EVT VT,
 
     // EltParts is currently in little endian order. If we actually want
     // big-endian order then reverse it now.
-    if (TLI->isBigEndian())
+    if (getDataLayout().isBigEndian())
       std::reverse(EltParts.begin(), EltParts.end());
 
     // The elements must be reversed when the element order is different
@@ -1234,7 +1233,7 @@ SDValue SelectionDAG::getConstant(const ConstantInt &Val, SDLoc DL, EVT VT,
 }
 
 SDValue SelectionDAG::getIntPtrConstant(uint64_t Val, SDLoc DL, bool isTarget) {
-  return getConstant(Val, DL, TLI->getPointerTy(), isTarget);
+  return getConstant(Val, DL, TLI->getPointerTy(getDataLayout()), isTarget);
 }
 
 SDValue SelectionDAG::getConstantFP(const APFloat& V, SDLoc DL, EVT VT,
@@ -1303,7 +1302,7 @@ SDValue SelectionDAG::getGlobalAddress(const GlobalValue *GV, SDLoc DL,
          "Cannot set target flags on target-independent globals");
 
   // Truncate (with sign-extension) the offset value to the pointer size.
-  unsigned BitWidth = TLI->getPointerTypeSizeInBits(GV->getType());
+  unsigned BitWidth = getDataLayout().getPointerTypeSizeInBits(GV->getType());
   if (BitWidth < 64)
     Offset = SignExtend64(Offset, BitWidth);
 
@@ -1373,7 +1372,7 @@ SDValue SelectionDAG::getConstantPool(const Constant *C, EVT VT,
   assert((TargetFlags == 0 || isTarget) &&
          "Cannot set target flags on target-independent globals");
   if (Alignment == 0)
-    Alignment = TLI->getDataLayout()->getPrefTypeAlignment(C->getType());
+    Alignment = getDataLayout().getPrefTypeAlignment(C->getType());
   unsigned Opc = isTarget ? ISD::TargetConstantPool : ISD::ConstantPool;
   FoldingSetNodeID ID;
   AddNodeIDNode(ID, Opc, getVTList(VT), None);
@@ -1400,7 +1399,7 @@ SDValue SelectionDAG::getConstantPool(MachineConstantPoolValue *C, EVT VT,
   assert((TargetFlags == 0 || isTarget) &&
          "Cannot set target flags on target-independent globals");
   if (Alignment == 0)
-    Alignment = TLI->getDataLayout()->getPrefTypeAlignment(C->getType());
+    Alignment = getDataLayout().getPrefTypeAlignment(C->getType());
   unsigned Opc = isTarget ? ISD::TargetConstantPool : ISD::ConstantPool;
   FoldingSetNodeID ID;
   AddNodeIDNode(ID, Opc, getVTList(VT), None);
@@ -1850,7 +1849,7 @@ SDValue SelectionDAG::getAddrSpaceCast(SDLoc dl, EVT VT, SDValue Ptr,
 /// the target's desired shift amount type.
 SDValue SelectionDAG::getShiftAmountOperand(EVT LHSTy, SDValue Op) {
   EVT OpTy = Op.getValueType();
-  EVT ShTy = TLI->getShiftAmountTy(LHSTy);
+  EVT ShTy = TLI->getShiftAmountTy(LHSTy, getDataLayout());
   if (OpTy == ShTy || OpTy.isVector()) return Op;
 
   ISD::NodeType Opcode = OpTy.bitsGT(ShTy) ?  ISD::TRUNCATE : ISD::ZERO_EXTEND;
@@ -1864,10 +1863,10 @@ SDValue SelectionDAG::CreateStackTemporary(EVT VT, unsigned minAlign) {
   unsigned ByteSize = VT.getStoreSize();
   Type *Ty = VT.getTypeForEVT(*getContext());
   unsigned StackAlign =
-  std::max((unsigned)TLI->getDataLayout()->getPrefTypeAlignment(Ty), minAlign);
+      std::max((unsigned)getDataLayout().getPrefTypeAlignment(Ty), minAlign);
 
   int FrameIdx = FrameInfo->CreateStackObject(ByteSize, StackAlign, false);
-  return getFrameIndex(FrameIdx, TLI->getPointerTy());
+  return getFrameIndex(FrameIdx, TLI->getPointerTy(getDataLayout()));
 }
 
 /// CreateStackTemporary - Create a stack temporary suitable for holding
@@ -1877,13 +1876,13 @@ SDValue SelectionDAG::CreateStackTemporary(EVT VT1, EVT VT2) {
                             VT2.getStoreSizeInBits())/8;
   Type *Ty1 = VT1.getTypeForEVT(*getContext());
   Type *Ty2 = VT2.getTypeForEVT(*getContext());
-  const DataLayout *TD = TLI->getDataLayout();
-  unsigned Align = std::max(TD->getPrefTypeAlignment(Ty1),
-                            TD->getPrefTypeAlignment(Ty2));
+  const DataLayout &DL = getDataLayout();
+  unsigned Align =
+      std::max(DL.getPrefTypeAlignment(Ty1), DL.getPrefTypeAlignment(Ty2));
 
   MachineFrameInfo *FrameInfo = getMachineFunction().getFrameInfo();
   int FrameIdx = FrameInfo->CreateStackObject(Bytes, Align, false);
-  return getFrameIndex(FrameIdx, TLI->getPointerTy());
+  return getFrameIndex(FrameIdx, TLI->getPointerTy(getDataLayout()));
 }
 
 SDValue SelectionDAG::FoldSetCC(EVT VT, SDValue N1,
@@ -1916,9 +1915,9 @@ SDValue SelectionDAG::FoldSetCC(EVT VT, SDValue N1,
     break;
   }
 
-  if (ConstantSDNode *N2C = dyn_cast<ConstantSDNode>(N2.getNode())) {
+  if (ConstantSDNode *N2C = dyn_cast<ConstantSDNode>(N2)) {
     const APInt &C2 = N2C->getAPIntValue();
-    if (ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1.getNode())) {
+    if (ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1)) {
       const APInt &C1 = N1C->getAPIntValue();
 
       switch (Cond) {
@@ -1936,8 +1935,8 @@ SDValue SelectionDAG::FoldSetCC(EVT VT, SDValue N1,
       }
     }
   }
-  if (ConstantFPSDNode *N1C = dyn_cast<ConstantFPSDNode>(N1.getNode())) {
-    if (ConstantFPSDNode *N2C = dyn_cast<ConstantFPSDNode>(N2.getNode())) {
+  if (ConstantFPSDNode *N1C = dyn_cast<ConstantFPSDNode>(N1)) {
+    if (ConstantFPSDNode *N2C = dyn_cast<ConstantFPSDNode>(N2)) {
       APFloat::cmpResult R = N1C->getValueAPF().compare(N2C->getValueAPF());
       switch (Cond) {
       default: break;
@@ -2356,15 +2355,24 @@ void SelectionDAG::computeKnownBits(SDValue Op, APInt &KnownZero,
     // Output known-0 bits are known if clear or set in both the low clear bits
     // common to both LHS & RHS.  For example, 8+(X<<3) is known to have the
     // low 3 bits clear.
+    // Output known-0 bits are also known if the top bits of each input are
+    // known to be clear. For example, if one input has the top 10 bits clear
+    // and the other has the top 8 bits clear, we know the top 7 bits of the
+    // output must be clear.
     computeKnownBits(Op.getOperand(0), KnownZero2, KnownOne2, Depth+1);
-    unsigned KnownZeroOut = KnownZero2.countTrailingOnes();
+    unsigned KnownZeroHigh = KnownZero2.countLeadingOnes();
+    unsigned KnownZeroLow = KnownZero2.countTrailingOnes();
 
     computeKnownBits(Op.getOperand(1), KnownZero2, KnownOne2, Depth+1);
-    KnownZeroOut = std::min(KnownZeroOut,
+    KnownZeroHigh = std::min(KnownZeroHigh,
+                             KnownZero2.countLeadingOnes());
+    KnownZeroLow = std::min(KnownZeroLow,
                             KnownZero2.countTrailingOnes());
 
     if (Op.getOpcode() == ISD::ADD) {
-      KnownZero |= APInt::getLowBitsSet(BitWidth, KnownZeroOut);
+      KnownZero |= APInt::getLowBitsSet(BitWidth, KnownZeroLow);
+      if (KnownZeroHigh > 1)
+        KnownZero |= APInt::getHighBitsSet(BitWidth, KnownZeroHigh - 1);
       break;
     }
 
@@ -2372,8 +2380,8 @@ void SelectionDAG::computeKnownBits(SDValue Op, APInt &KnownZero,
     // information if we know (at least) that the low two bits are clear.  We
     // then return to the caller that the low bit is unknown but that other bits
     // are known zero.
-    if (KnownZeroOut >= 2) // ADDE
-      KnownZero |= APInt::getBitsSet(BitWidth, 1, KnownZeroOut);
+    if (KnownZeroLow >= 2) // ADDE
+      KnownZero |= APInt::getBitsSet(BitWidth, 1, KnownZeroLow);
     break;
   }
   case ISD::SREM:
@@ -2814,7 +2822,7 @@ SDValue SelectionDAG::getNode(unsigned Opcode, SDLoc DL,
   // doesn't create new constants with different values. Nevertheless, the
   // opaque flag is preserved during folding to prevent future folding with
   // other constants.
-  if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(Operand.getNode())) {
+  if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(Operand)) {
     const APInt &Val = C->getAPIntValue();
     switch (Opcode) {
     default: break;
@@ -2861,7 +2869,7 @@ SDValue SelectionDAG::getNode(unsigned Opcode, SDLoc DL,
   }
 
   // Constant fold unary operations with a floating point constant operand.
-  if (ConstantFPSDNode *C = dyn_cast<ConstantFPSDNode>(Operand.getNode())) {
+  if (ConstantFPSDNode *C = dyn_cast<ConstantFPSDNode>(Operand)) {
     APFloat V = C->getValueAPF();    // make copy
     switch (Opcode) {
     case ISD::FNEG:
@@ -2922,7 +2930,7 @@ SDValue SelectionDAG::getNode(unsigned Opcode, SDLoc DL,
   }
 
   // Constant fold unary operations with a vector integer or float operand.
-  if (BuildVectorSDNode *BV = dyn_cast<BuildVectorSDNode>(Operand.getNode())) {
+  if (BuildVectorSDNode *BV = dyn_cast<BuildVectorSDNode>(Operand)) {
     if (BV->isConstant()) {
       switch (Opcode) {
       default:
@@ -3278,8 +3286,8 @@ SDValue SelectionDAG::FoldConstantArithmetic(unsigned Opcode, SDLoc DL, EVT VT,
 
 SDValue SelectionDAG::getNode(unsigned Opcode, SDLoc DL, EVT VT, SDValue N1,
                               SDValue N2, const SDNodeFlags *Flags) {
-  ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1.getNode());
-  ConstantSDNode *N2C = dyn_cast<ConstantSDNode>(N2.getNode());
+  ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1);
+  ConstantSDNode *N2C = dyn_cast<ConstantSDNode>(N2);
   switch (Opcode) {
   default: break;
   case ISD::TokenFactor:
@@ -3499,7 +3507,7 @@ SDValue SelectionDAG::getNode(unsigned Opcode, SDLoc DL, EVT VT, SDValue N1,
           Ops.push_back(Op);
           continue;
         }
-        if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(Op.getNode())) {
+        if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(Op)) {
           APInt Val = C->getAPIntValue();
           Ops.push_back(SignExtendInReg(Val));
           continue;
@@ -3554,7 +3562,7 @@ SDValue SelectionDAG::getNode(unsigned Opcode, SDLoc DL, EVT VT, SDValue N1,
       // if the indices are known different, extract the element from
       // the original vector.
       SDValue N1Op2 = N1.getOperand(2);
-      ConstantSDNode *N1Op2C = dyn_cast<ConstantSDNode>(N1Op2.getNode());
+      ConstantSDNode *N1Op2C = dyn_cast<ConstantSDNode>(N1Op2);
 
       if (N1Op2C && N2C) {
         if (N1Op2C->getZExtValue() == N2C->getZExtValue()) {
@@ -3600,9 +3608,9 @@ SDValue SelectionDAG::getNode(unsigned Opcode, SDLoc DL, EVT VT, SDValue N1,
       assert(VT.getSimpleVT() <= N1.getSimpleValueType() &&
              "Extract subvector must be from larger vector to smaller vector!");
 
-      if (isa<ConstantSDNode>(Index.getNode())) {
+      if (isa<ConstantSDNode>(Index)) {
         assert((VT.getVectorNumElements() +
-                cast<ConstantSDNode>(Index.getNode())->getZExtValue()
+                cast<ConstantSDNode>(Index)->getZExtValue()
                 <= N1.getValueType().getVectorNumElements())
                && "Extract subvector overflow!");
       }
@@ -3628,8 +3636,8 @@ SDValue SelectionDAG::getNode(unsigned Opcode, SDLoc DL, EVT VT, SDValue N1,
 
   // Constant fold FP operations.
   bool HasFPExceptions = TLI->hasFloatingPointExceptions();
-  ConstantFPSDNode *N1CFP = dyn_cast<ConstantFPSDNode>(N1.getNode());
-  ConstantFPSDNode *N2CFP = dyn_cast<ConstantFPSDNode>(N2.getNode());
+  ConstantFPSDNode *N1CFP = dyn_cast<ConstantFPSDNode>(N1);
+  ConstantFPSDNode *N2CFP = dyn_cast<ConstantFPSDNode>(N2);
   if (N1CFP) {
     if (!N2CFP && isCommutativeBinOp(Opcode)) {
       // Canonicalize constant to RHS if commutative.
@@ -3787,7 +3795,7 @@ SDValue SelectionDAG::getNode(unsigned Opcode, SDLoc DL, EVT VT, SDValue N1,
 SDValue SelectionDAG::getNode(unsigned Opcode, SDLoc DL, EVT VT,
                               SDValue N1, SDValue N2, SDValue N3) {
   // Perform various simplifications.
-  ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1.getNode());
+  ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1);
   switch (Opcode) {
   case ISD::FMA: {
     ConstantFPSDNode *N1CFP = dyn_cast<ConstantFPSDNode>(N1);
@@ -3845,9 +3853,9 @@ SDValue SelectionDAG::getNode(unsigned Opcode, SDLoc DL, EVT VT,
              "Dest and insert subvector source types must match!");
       assert(N2.getSimpleValueType() <= N1.getSimpleValueType() &&
              "Insert subvector must be from smaller vector to larger vector!");
-      if (isa<ConstantSDNode>(Index.getNode())) {
+      if (isa<ConstantSDNode>(Index)) {
         assert((N2.getValueType().getVectorNumElements() +
-                cast<ConstantSDNode>(Index.getNode())->getZExtValue()
+                cast<ConstantSDNode>(Index)->getZExtValue()
                 <= VT.getVectorNumElements())
                && "Insert subvector overflow!");
       }
@@ -3994,7 +4002,7 @@ static SDValue getMemsetStringVal(EVT VT, SDLoc dl, SelectionDAG &DAG,
   unsigned NumBytes = std::min(NumVTBytes, unsigned(Str.size()));
 
   APInt Val(NumVTBits, 0);
-  if (TLI.isLittleEndian()) {
+  if (DAG.getDataLayout().isLittleEndian()) {
     for (unsigned i = 0; i != NumBytes; ++i)
       Val |= (uint64_t)(unsigned char)Str[i] << i*8;
   } else {
@@ -4066,9 +4074,9 @@ static bool FindOptimalMemOpLowering(std::vector<EVT> &MemOps,
 
   if (VT == MVT::Other) {
     unsigned AS = 0;
-    if (DstAlign >= TLI.getDataLayout()->getPointerPrefAlignment(AS) ||
+    if (DstAlign >= DAG.getDataLayout().getPointerPrefAlignment(AS) ||
         TLI.allowsMisalignedMemoryAccesses(VT, AS, DstAlign)) {
-      VT = TLI.getPointerTy();
+      VT = TLI.getPointerTy(DAG.getDataLayout());
     } else {
       switch (DstAlign & 7) {
       case 0:  VT = MVT::i64; break;
@@ -4185,14 +4193,14 @@ static SDValue getMemcpyLoadsAndStores(SelectionDAG &DAG, SDLoc dl,
 
   if (DstAlignCanChange) {
     Type *Ty = MemOps[0].getTypeForEVT(*DAG.getContext());
-    unsigned NewAlign = (unsigned) TLI.getDataLayout()->getABITypeAlignment(Ty);
+    unsigned NewAlign = (unsigned)DAG.getDataLayout().getABITypeAlignment(Ty);
 
     // Don't promote to an alignment that would require dynamic stack
     // realignment.
     const TargetRegisterInfo *TRI = MF.getSubtarget().getRegisterInfo();
     if (!TRI->needsStackRealignment(MF))
-       while (NewAlign > Align &&
-             TLI.getDataLayout()->exceedsNaturalStackAlignment(NewAlign))
+      while (NewAlign > Align &&
+             DAG.getDataLayout().exceedsNaturalStackAlignment(NewAlign))
           NewAlign /= 2;
 
     if (NewAlign > Align) {
@@ -4294,7 +4302,7 @@ static SDValue getMemmoveLoadsAndStores(SelectionDAG &DAG, SDLoc dl,
 
   if (DstAlignCanChange) {
     Type *Ty = MemOps[0].getTypeForEVT(*DAG.getContext());
-    unsigned NewAlign = (unsigned) TLI.getDataLayout()->getABITypeAlignment(Ty);
+    unsigned NewAlign = (unsigned)DAG.getDataLayout().getABITypeAlignment(Ty);
     if (NewAlign > Align) {
       // Give the stack frame object a larger alignment if needed.
       if (MFI->getObjectAlignment(FI->getIndex()) < NewAlign)
@@ -4385,7 +4393,7 @@ static SDValue getMemsetStores(SelectionDAG &DAG, SDLoc dl,
 
   if (DstAlignCanChange) {
     Type *Ty = MemOps[0].getTypeForEVT(*DAG.getContext());
-    unsigned NewAlign = (unsigned) TLI.getDataLayout()->getABITypeAlignment(Ty);
+    unsigned NewAlign = (unsigned)DAG.getDataLayout().getABITypeAlignment(Ty);
     if (NewAlign > Align) {
       // Give the stack frame object a larger alignment if needed.
       if (MFI->getObjectAlignment(FI->getIndex()) < NewAlign)
@@ -4488,19 +4496,21 @@ SDValue SelectionDAG::getMemcpy(SDValue Chain, SDLoc dl, SDValue Dst,
   // Emit a library call.
   TargetLowering::ArgListTy Args;
   TargetLowering::ArgListEntry Entry;
-  Entry.Ty = TLI->getDataLayout()->getIntPtrType(*getContext());
+  Entry.Ty = getDataLayout().getIntPtrType(*getContext());
   Entry.Node = Dst; Args.push_back(Entry);
   Entry.Node = Src; Args.push_back(Entry);
   Entry.Node = Size; Args.push_back(Entry);
   // FIXME: pass in SDLoc
   TargetLowering::CallLoweringInfo CLI(*this);
-  CLI.setDebugLoc(dl).setChain(Chain)
-    .setCallee(TLI->getLibcallCallingConv(RTLIB::MEMCPY),
-               Type::getVoidTy(*getContext()),
-               getExternalSymbol(TLI->getLibcallName(RTLIB::MEMCPY),
-                                 TLI->getPointerTy()), std::move(Args), 0)
-    .setDiscardResult()
-    .setTailCall(isTailCall);
+  CLI.setDebugLoc(dl)
+      .setChain(Chain)
+      .setCallee(TLI->getLibcallCallingConv(RTLIB::MEMCPY),
+                 Type::getVoidTy(*getContext()),
+                 getExternalSymbol(TLI->getLibcallName(RTLIB::MEMCPY),
+                                   TLI->getPointerTy(getDataLayout())),
+                 std::move(Args), 0)
+      .setDiscardResult()
+      .setTailCall(isTailCall);
 
   std::pair<SDValue,SDValue> CallResult = TLI->LowerCallTo(CLI);
   return CallResult.second;
@@ -4544,19 +4554,21 @@ SDValue SelectionDAG::getMemmove(SDValue Chain, SDLoc dl, SDValue Dst,
   // Emit a library call.
   TargetLowering::ArgListTy Args;
   TargetLowering::ArgListEntry Entry;
-  Entry.Ty = TLI->getDataLayout()->getIntPtrType(*getContext());
+  Entry.Ty = getDataLayout().getIntPtrType(*getContext());
   Entry.Node = Dst; Args.push_back(Entry);
   Entry.Node = Src; Args.push_back(Entry);
   Entry.Node = Size; Args.push_back(Entry);
   // FIXME:  pass in SDLoc
   TargetLowering::CallLoweringInfo CLI(*this);
-  CLI.setDebugLoc(dl).setChain(Chain)
-    .setCallee(TLI->getLibcallCallingConv(RTLIB::MEMMOVE),
-               Type::getVoidTy(*getContext()),
-               getExternalSymbol(TLI->getLibcallName(RTLIB::MEMMOVE),
-                                 TLI->getPointerTy()), std::move(Args), 0)
-    .setDiscardResult()
-    .setTailCall(isTailCall);
+  CLI.setDebugLoc(dl)
+      .setChain(Chain)
+      .setCallee(TLI->getLibcallCallingConv(RTLIB::MEMMOVE),
+                 Type::getVoidTy(*getContext()),
+                 getExternalSymbol(TLI->getLibcallName(RTLIB::MEMMOVE),
+                                   TLI->getPointerTy(getDataLayout())),
+                 std::move(Args), 0)
+      .setDiscardResult()
+      .setTailCall(isTailCall);
 
   std::pair<SDValue,SDValue> CallResult = TLI->LowerCallTo(CLI);
   return CallResult.second;
@@ -4594,7 +4606,7 @@ SDValue SelectionDAG::getMemset(SDValue Chain, SDLoc dl, SDValue Dst,
   }
 
   // Emit a library call.
-  Type *IntPtrTy = TLI->getDataLayout()->getIntPtrType(*getContext());
+  Type *IntPtrTy = getDataLayout().getIntPtrType(*getContext());
   TargetLowering::ArgListTy Args;
   TargetLowering::ArgListEntry Entry;
   Entry.Node = Dst; Entry.Ty = IntPtrTy;
@@ -4608,13 +4620,15 @@ SDValue SelectionDAG::getMemset(SDValue Chain, SDLoc dl, SDValue Dst,
 
   // FIXME: pass in SDLoc
   TargetLowering::CallLoweringInfo CLI(*this);
-  CLI.setDebugLoc(dl).setChain(Chain)
-    .setCallee(TLI->getLibcallCallingConv(RTLIB::MEMSET),
-               Type::getVoidTy(*getContext()),
-               getExternalSymbol(TLI->getLibcallName(RTLIB::MEMSET),
-                                 TLI->getPointerTy()), std::move(Args), 0)
-    .setDiscardResult()
-    .setTailCall(isTailCall);
+  CLI.setDebugLoc(dl)
+      .setChain(Chain)
+      .setCallee(TLI->getLibcallCallingConv(RTLIB::MEMSET),
+                 Type::getVoidTy(*getContext()),
+                 getExternalSymbol(TLI->getLibcallName(RTLIB::MEMSET),
+                                   TLI->getPointerTy(getDataLayout())),
+                 std::move(Args), 0)
+      .setDiscardResult()
+      .setTailCall(isTailCall);
 
   std::pair<SDValue,SDValue> CallResult = TLI->LowerCallTo(CLI);
   return CallResult.second;
@@ -6656,7 +6670,7 @@ bool SDNode::hasAnyUseOfValue(unsigned Value) const {
 
 /// isOnlyUserOf - Return true if this node is the only use of N.
 ///
-bool SDNode::isOnlyUserOf(SDNode *N) const {
+bool SDNode::isOnlyUserOf(const SDNode *N) const {
   bool Seen = false;
   for (SDNode::use_iterator I = N->use_begin(), E = N->use_end(); I != E; ++I) {
     SDNode *User = *I;
@@ -6671,16 +6685,16 @@ bool SDNode::isOnlyUserOf(SDNode *N) const {
 
 /// isOperand - Return true if this node is an operand of N.
 ///
-bool SDValue::isOperandOf(SDNode *N) const {
+bool SDValue::isOperandOf(const SDNode *N) const {
   for (const SDValue &Op : N->op_values())
     if (*this == Op)
       return true;
   return false;
 }
 
-bool SDNode::isOperandOf(SDNode *N) const {
-  for (unsigned i = 0, e = N->NumOperands; i != e; ++i)
-    if (this == N->OperandList[i].getNode())
+bool SDNode::isOperandOf(const SDNode *N) const {
+  for (const SDValue &Op : N->op_values())
+    if (this == Op.getNode())
       return true;
   return false;
 }
@@ -6784,10 +6798,9 @@ SDValue SelectionDAG::UnrollVectorOp(SDNode *N, unsigned ResNE) {
       if (OperandVT.isVector()) {
         // A vector operand; extract a single element.
         EVT OperandEltVT = OperandVT.getVectorElementType();
-        Operands[j] = getNode(ISD::EXTRACT_VECTOR_ELT, dl,
-                              OperandEltVT,
-                              Operand,
-                              getConstant(i, dl, TLI->getVectorIdxTy()));
+        Operands[j] =
+            getNode(ISD::EXTRACT_VECTOR_ELT, dl, OperandEltVT, Operand,
+                    getConstant(i, dl, TLI->getVectorIdxTy(getDataLayout())));
       } else {
         // A scalar operand; just use it as is.
         Operands[j] = Operand;
@@ -6891,10 +6904,10 @@ unsigned SelectionDAG::InferPtrAlignment(SDValue Ptr) const {
   const GlobalValue *GV;
   int64_t GVOffset = 0;
   if (TLI->isGAPlusOffset(Ptr.getNode(), GV, GVOffset)) {
-    unsigned PtrWidth = TLI->getPointerTypeSizeInBits(GV->getType());
+    unsigned PtrWidth = getDataLayout().getPointerTypeSizeInBits(GV->getType());
     APInt KnownZero(PtrWidth, 0), KnownOne(PtrWidth, 0);
     llvm::computeKnownBits(const_cast<GlobalValue *>(GV), KnownZero, KnownOne,
-                           *TLI->getDataLayout());
+                           getDataLayout());
     unsigned AlignBits = KnownZero.countTrailingOnes();
     unsigned Align = AlignBits ? 1 << std::min(31U, AlignBits) : 0;
     if (Align)
@@ -6950,10 +6963,10 @@ SelectionDAG::SplitVector(const SDValue &N, const SDLoc &DL, const EVT &LoVT,
          "More vector elements requested than available!");
   SDValue Lo, Hi;
   Lo = getNode(ISD::EXTRACT_SUBVECTOR, DL, LoVT, N,
-               getConstant(0, DL, TLI->getVectorIdxTy()));
+               getConstant(0, DL, TLI->getVectorIdxTy(getDataLayout())));
   Hi = getNode(ISD::EXTRACT_SUBVECTOR, DL, HiVT, N,
                getConstant(LoVT.getVectorNumElements(), DL,
-                           TLI->getVectorIdxTy()));
+                           TLI->getVectorIdxTy(getDataLayout())));
   return std::make_pair(Lo, Hi);
 }
 
@@ -6965,7 +6978,7 @@ void SelectionDAG::ExtractVectorElements(SDValue Op,
     Count = VT.getVectorNumElements();
 
   EVT EltVT = VT.getVectorElementType();
-  EVT IdxTy = TLI->getVectorIdxTy();
+  EVT IdxTy = TLI->getVectorIdxTy(getDataLayout());
   SDLoc SL(Op);
   for (unsigned i = Start, e = Start + Count; i != e; ++i) {
     Args.push_back(getNode(ISD::EXTRACT_VECTOR_ELT, SL, EltVT,
@@ -7080,14 +7093,12 @@ SDValue BuildVectorSDNode::getSplatValue(BitVector *UndefElements) const {
 
 ConstantSDNode *
 BuildVectorSDNode::getConstantSplatNode(BitVector *UndefElements) const {
-  return dyn_cast_or_null<ConstantSDNode>(
-      getSplatValue(UndefElements).getNode());
+  return dyn_cast_or_null<ConstantSDNode>(getSplatValue(UndefElements));
 }
 
 ConstantFPSDNode *
 BuildVectorSDNode::getConstantFPSplatNode(BitVector *UndefElements) const {
-  return dyn_cast_or_null<ConstantFPSDNode>(
-      getSplatValue(UndefElements).getNode());
+  return dyn_cast_or_null<ConstantFPSDNode>(getSplatValue(UndefElements));
 }
 
 bool BuildVectorSDNode::isConstant() const {