diff --git a/llvm/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp b/llvm/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp
index 59dd46c..26af3f4 100644
--- a/llvm/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp
@@ -351,6 +351,7 @@
   void Select(SDNode *Node) override;
   bool SelectInlineAsmMemoryOperand(const SDValue &Op, unsigned ConstraintID,
                                     std::vector<SDValue> &OutOps) override;
+  bool IsProfitableToFold(SDValue N, SDNode *U, SDNode *Root) const override;
   void PreprocessISelDAG() override;
 
   // Include the pieces autogenerated from the target description.
@@ -1445,6 +1446,52 @@
   return true;
 }
 
+// IsProfitableToFold - Returns true if is profitable to fold the specific
+// operand node N of U during instruction selection that starts at Root.
+bool
+SystemZDAGToDAGISel::IsProfitableToFold(SDValue N, SDNode *U,
+                                        SDNode *Root) const {
+  // We want to avoid folding a LOAD into an ICMP node if as a result
+  // we would be forced to spill the condition code into a GPR.
+  if (N.getOpcode() == ISD::LOAD && U->getOpcode() == SystemZISD::ICMP) {
+    if (!N.hasOneUse() || !U->hasOneUse())
+      return false;
+
+    // The user of the CC value will usually be a CopyToReg into the
+    // physical CC register, which in turn is glued and chained to the
+    // actual instruction that uses the CC value.  Bail out if we have
+    // anything else than that.
+    SDNode *CCUser = *U->use_begin();
+    SDNode *CCRegUser = nullptr;
+    if (CCUser->getOpcode() == ISD::CopyToReg ||
+        cast<RegisterSDNode>(CCUser->getOperand(1))->getReg() == SystemZ::CC) {
+      for (auto *U : CCUser->uses()) {
+        if (CCRegUser == nullptr)
+          CCRegUser = U;
+        else if (CCRegUser != U)
+          return false;
+      }
+    }
+    if (CCRegUser == nullptr)
+      return false;
+
+    // If the actual instruction is a branch, the only thing that remains to be
+    // checked is whether the CCUser chain is a predecessor of the load.
+    if (CCRegUser->isMachineOpcode() &&
+        CCRegUser->getMachineOpcode() == SystemZ::BRC)
+      return !N->isPredecessorOf(CCUser->getOperand(0).getNode());
+
+    // Otherwise, the instruction may have multiple operands, and we need to
+    // verify that none of them are a predecessor of the load.  This is exactly
+    // the same check that would be done by common code if the CC setter were
+    // glued to the CC user, so simply invoke that check here.
+    if (!IsLegalToFold(N, U, CCRegUser, OptLevel, false))
+      return false;
+  }
+
+  return true;
+}
+
 namespace {
 // Represents a sequence for extracting a 0/1 value from an IPM result:
 // (((X ^ XORValue) + AddValue) >> Bit)
@@ -1543,9 +1590,9 @@
   int CCMask = CCMaskOp->getZExtValue();
 
   SDLoc DL(Node);
-  SDValue Glue = Node->getOperand(4);
+  SDValue CCReg = Node->getOperand(4);
   IPMConversion IPM = getIPMConversion(CCValid, CCMask);
-  SDValue Result = CurDAG->getNode(SystemZISD::IPM, DL, MVT::i32, Glue);
+  SDValue Result = CurDAG->getNode(SystemZISD::IPM, DL, MVT::i32, CCReg);
 
   if (IPM.XORValue)
     Result = CurDAG->getNode(ISD::XOR, DL, MVT::i32, Result,
diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
index bf5a28c..ab314e1 100644
--- a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -1662,9 +1662,9 @@
   }
 }
 
-// Emit an intrinsic with chain with a glued value instead of its CC result.
-static SDValue emitIntrinsicWithChainAndGlue(SelectionDAG &DAG, SDValue Op,
-                                             unsigned Opcode) {
+// Emit an intrinsic with chain and an explicit CC register result.
+static SDNode *emitIntrinsicWithCCAndChain(SelectionDAG &DAG, SDValue Op,
+                                           unsigned Opcode) {
   // Copy all operands except the intrinsic ID.
   unsigned NumOps = Op.getNumOperands();
   SmallVector<SDValue, 6> Ops;
@@ -1674,17 +1674,17 @@
     Ops.push_back(Op.getOperand(I));
 
   assert(Op->getNumValues() == 2 && "Expected only CC result and chain");
-  SDVTList RawVTs = DAG.getVTList(MVT::Other, MVT::Glue);
+  SDVTList RawVTs = DAG.getVTList(MVT::i32, MVT::Other);
   SDValue Intr = DAG.getNode(Opcode, SDLoc(Op), RawVTs, Ops);
   SDValue OldChain = SDValue(Op.getNode(), 1);
-  SDValue NewChain = SDValue(Intr.getNode(), 0);
+  SDValue NewChain = SDValue(Intr.getNode(), 1);
   DAG.ReplaceAllUsesOfValueWith(OldChain, NewChain);
-  return Intr;
+  return Intr.getNode();
 }
 
-// Emit an intrinsic with a glued value instead of its CC result.
-static SDValue emitIntrinsicWithGlue(SelectionDAG &DAG, SDValue Op,
-                                     unsigned Opcode) {
+// Emit an intrinsic with an explicit CC register result.
+static SDNode *emitIntrinsicWithCC(SelectionDAG &DAG, SDValue Op,
+                                   unsigned Opcode) {
   // Copy all operands except the intrinsic ID.
   unsigned NumOps = Op.getNumOperands();
   SmallVector<SDValue, 6> Ops;
@@ -1692,11 +1692,8 @@
   for (unsigned I = 1; I < NumOps; ++I)
     Ops.push_back(Op.getOperand(I));
 
-  if (Op->getNumValues() == 1)
-    return DAG.getNode(Opcode, SDLoc(Op), MVT::Glue, Ops);
-  assert(Op->getNumValues() == 2 && "Expected exactly one non-CC result");
-  SDVTList RawVTs = DAG.getVTList(Op->getValueType(0), MVT::Glue);
-  return DAG.getNode(Opcode, SDLoc(Op), RawVTs, Ops);
+  SDValue Intr = DAG.getNode(Opcode, SDLoc(Op), Op->getVTList(), Ops);
+  return Intr.getNode();
 }
 
 // CC is a comparison that will be implemented using an integer or
@@ -2310,29 +2307,28 @@
 // Emit the comparison instruction described by C.
 static SDValue emitCmp(SelectionDAG &DAG, const SDLoc &DL, Comparison &C) {
   if (!C.Op1.getNode()) {
-    SDValue Op;
+    SDNode *Node;
     switch (C.Op0.getOpcode()) {
     case ISD::INTRINSIC_W_CHAIN:
-      Op = emitIntrinsicWithChainAndGlue(DAG, C.Op0, C.Opcode);
-      break;
+      Node = emitIntrinsicWithCCAndChain(DAG, C.Op0, C.Opcode);
+      return SDValue(Node, 0);
     case ISD::INTRINSIC_WO_CHAIN:
-      Op = emitIntrinsicWithGlue(DAG, C.Op0, C.Opcode);
-      break;
+      Node = emitIntrinsicWithCC(DAG, C.Op0, C.Opcode);
+      return SDValue(Node, Node->getNumValues() - 1);
     default:
       llvm_unreachable("Invalid comparison operands");
     }
-    return SDValue(Op.getNode(), Op->getNumValues() - 1);
   }
   if (C.Opcode == SystemZISD::ICMP)
-    return DAG.getNode(SystemZISD::ICMP, DL, MVT::Glue, C.Op0, C.Op1,
+    return DAG.getNode(SystemZISD::ICMP, DL, MVT::i32, C.Op0, C.Op1,
                        DAG.getConstant(C.ICmpType, DL, MVT::i32));
   if (C.Opcode == SystemZISD::TM) {
     bool RegisterOnly = (bool(C.CCMask & SystemZ::CCMASK_TM_MIXED_MSB_0) !=
                          bool(C.CCMask & SystemZ::CCMASK_TM_MIXED_MSB_1));
-    return DAG.getNode(SystemZISD::TM, DL, MVT::Glue, C.Op0, C.Op1,
+    return DAG.getNode(SystemZISD::TM, DL, MVT::i32, C.Op0, C.Op1,
                        DAG.getConstant(RegisterOnly, DL, MVT::i32));
   }
-  return DAG.getNode(C.Opcode, DL, MVT::Glue, C.Op0, C.Op1);
+  return DAG.getNode(C.Opcode, DL, MVT::i32, C.Op0, C.Op1);
 }
 
 // Implement a 32-bit *MUL_LOHI operation by extending both operands to
@@ -2363,15 +2359,15 @@
   Odd = DAG.getTargetExtractSubreg(SystemZ::odd128(Is32Bit), DL, VT, Result);
 }
 
-// Return an i32 value that is 1 if the CC value produced by Glue is
+// Return an i32 value that is 1 if the CC value produced by CCReg is
 // in the mask CCMask and 0 otherwise.  CC is known to have a value
 // in CCValid, so other values can be ignored.
-static SDValue emitSETCC(SelectionDAG &DAG, const SDLoc &DL, SDValue Glue,
+static SDValue emitSETCC(SelectionDAG &DAG, const SDLoc &DL, SDValue CCReg,
                          unsigned CCValid, unsigned CCMask) {
   SDValue Ops[] = { DAG.getConstant(1, DL, MVT::i32),
                     DAG.getConstant(0, DL, MVT::i32),
                     DAG.getConstant(CCValid, DL, MVT::i32),
-                    DAG.getConstant(CCMask, DL, MVT::i32), Glue };
+                    DAG.getConstant(CCMask, DL, MVT::i32), CCReg };
   return DAG.getNode(SystemZISD::SELECT_CCMASK, DL, MVT::i32, Ops);
 }
 
@@ -2521,8 +2517,8 @@
     return lowerVectorSETCC(DAG, DL, VT, CC, CmpOp0, CmpOp1);
 
   Comparison C(getCmp(DAG, CmpOp0, CmpOp1, CC, DL));
-  SDValue Glue = emitCmp(DAG, DL, C);
-  return emitSETCC(DAG, DL, Glue, C.CCValid, C.CCMask);
+  SDValue CCReg = emitCmp(DAG, DL, C);
+  return emitSETCC(DAG, DL, CCReg, C.CCValid, C.CCMask);
 }
 
 SDValue SystemZTargetLowering::lowerBR_CC(SDValue Op, SelectionDAG &DAG) const {
@@ -2533,10 +2529,10 @@
   SDLoc DL(Op);
 
   Comparison C(getCmp(DAG, CmpOp0, CmpOp1, CC, DL));
-  SDValue Glue = emitCmp(DAG, DL, C);
+  SDValue CCReg = emitCmp(DAG, DL, C);
   return DAG.getNode(SystemZISD::BR_CCMASK, DL, Op.getValueType(),
                      Op.getOperand(0), DAG.getConstant(C.CCValid, DL, MVT::i32),
-                     DAG.getConstant(C.CCMask, DL, MVT::i32), Dest, Glue);
+                     DAG.getConstant(C.CCMask, DL, MVT::i32), Dest, CCReg);
 }
 
 // Return true if Pos is CmpOp and Neg is the negative of CmpOp,
@@ -2586,9 +2582,9 @@
       return getAbsolute(DAG, DL, FalseOp, C.CCMask & SystemZ::CCMASK_CMP_GT);
   }
 
-  SDValue Glue = emitCmp(DAG, DL, C);
+  SDValue CCReg = emitCmp(DAG, DL, C);
   SDValue Ops[] = {TrueOp, FalseOp, DAG.getConstant(C.CCValid, DL, MVT::i32),
-                   DAG.getConstant(C.CCMask, DL, MVT::i32), Glue};
+                   DAG.getConstant(C.CCMask, DL, MVT::i32), CCReg};
 
   return DAG.getNode(SystemZISD::SELECT_CCMASK, DL, Op.getValueType(), Ops);
 }
@@ -3454,16 +3450,16 @@
   EVT NarrowVT = Node->getMemoryVT();
   EVT WideVT = NarrowVT == MVT::i64 ? MVT::i64 : MVT::i32;
   if (NarrowVT == WideVT) {
-    SDVTList Tys = DAG.getVTList(WideVT, MVT::Other, MVT::Glue);
+    SDVTList Tys = DAG.getVTList(WideVT, MVT::i32, MVT::Other);
     SDValue Ops[] = { ChainIn, Addr, CmpVal, SwapVal };
     SDValue AtomicOp = DAG.getMemIntrinsicNode(SystemZISD::ATOMIC_CMP_SWAP,
                                                DL, Tys, Ops, NarrowVT, MMO);
-    SDValue Success = emitSETCC(DAG, DL, AtomicOp.getValue(2),
+    SDValue Success = emitSETCC(DAG, DL, AtomicOp.getValue(1),
                                 SystemZ::CCMASK_CS, SystemZ::CCMASK_CS_EQ);
 
     DAG.ReplaceAllUsesOfValueWith(Op.getValue(0), AtomicOp.getValue(0));
     DAG.ReplaceAllUsesOfValueWith(Op.getValue(1), Success);
-    DAG.ReplaceAllUsesOfValueWith(Op.getValue(2), AtomicOp.getValue(1));
+    DAG.ReplaceAllUsesOfValueWith(Op.getValue(2), AtomicOp.getValue(2));
     return SDValue();
   }
 
@@ -3488,17 +3484,17 @@
                                     DAG.getConstant(0, DL, WideVT), BitShift);
 
   // Construct the ATOMIC_CMP_SWAPW node.
-  SDVTList VTList = DAG.getVTList(WideVT, MVT::Other, MVT::Glue);
+  SDVTList VTList = DAG.getVTList(WideVT, MVT::i32, MVT::Other);
   SDValue Ops[] = { ChainIn, AlignedAddr, CmpVal, SwapVal, BitShift,
                     NegBitShift, DAG.getConstant(BitSize, DL, WideVT) };
   SDValue AtomicOp = DAG.getMemIntrinsicNode(SystemZISD::ATOMIC_CMP_SWAPW, DL,
                                              VTList, Ops, NarrowVT, MMO);
-  SDValue Success = emitSETCC(DAG, DL, AtomicOp.getValue(2),
+  SDValue Success = emitSETCC(DAG, DL, AtomicOp.getValue(1),
                               SystemZ::CCMASK_ICMP, SystemZ::CCMASK_CMP_EQ);
 
   DAG.ReplaceAllUsesOfValueWith(Op.getValue(0), AtomicOp.getValue(0));
   DAG.ReplaceAllUsesOfValueWith(Op.getValue(1), Success);
-  DAG.ReplaceAllUsesOfValueWith(Op.getValue(2), AtomicOp.getValue(1));
+  DAG.ReplaceAllUsesOfValueWith(Op.getValue(2), AtomicOp.getValue(2));
   return SDValue();
 }
 
@@ -3555,12 +3551,10 @@
                                  Node->getMemoryVT(), Node->getMemOperand());
 }
 
-// Return an i32 that contains the value of CC immediately after After,
-// whose final operand must be MVT::Glue.
-static SDValue getCCResult(SelectionDAG &DAG, SDNode *After) {
-  SDLoc DL(After);
-  SDValue Glue = SDValue(After, After->getNumValues() - 1);
-  SDValue IPM = DAG.getNode(SystemZISD::IPM, DL, MVT::i32, Glue);
+// Convert condition code in CCReg to an i32 value.
+static SDValue getCCResult(SelectionDAG &DAG, SDValue CCReg) {
+  SDLoc DL(CCReg);
+  SDValue IPM = DAG.getNode(SystemZISD::IPM, DL, MVT::i32, CCReg);
   return DAG.getNode(ISD::SRL, DL, MVT::i32, IPM,
                      DAG.getConstant(SystemZ::IPM_CC, DL, MVT::i32));
 }
@@ -3571,8 +3565,8 @@
   unsigned Opcode, CCValid;
   if (isIntrinsicWithCCAndChain(Op, Opcode, CCValid)) {
     assert(Op->getNumValues() == 2 && "Expected only CC result and chain");
-    SDValue Glued = emitIntrinsicWithChainAndGlue(DAG, Op, Opcode);
-    SDValue CC = getCCResult(DAG, Glued.getNode());
+    SDNode *Node = emitIntrinsicWithCCAndChain(DAG, Op, Opcode);
+    SDValue CC = getCCResult(DAG, SDValue(Node, 0));
     DAG.ReplaceAllUsesOfValueWith(SDValue(Op.getNode(), 0), CC);
     return SDValue();
   }
@@ -3585,13 +3579,12 @@
                                                SelectionDAG &DAG) const {
   unsigned Opcode, CCValid;
   if (isIntrinsicWithCC(Op, Opcode, CCValid)) {
-    SDValue Glued = emitIntrinsicWithGlue(DAG, Op, Opcode);
-    SDValue CC = getCCResult(DAG, Glued.getNode());
+    SDNode *Node = emitIntrinsicWithCC(DAG, Op, Opcode);
     if (Op->getNumValues() == 1)
-      return CC;
+      return getCCResult(DAG, SDValue(Node, 0));
     assert(Op->getNumValues() == 2 && "Expected a CC and non-CC result");
-    return DAG.getNode(ISD::MERGE_VALUES, SDLoc(Op), Op->getVTList(), Glued,
-                       CC);
+    return DAG.getNode(ISD::MERGE_VALUES, SDLoc(Op), Op->getVTList(),
+                       SDValue(Node, 0), getCCResult(DAG, SDValue(Node, 1)));
   }
 
   unsigned Id = cast<ConstantSDNode>(Op.getOperand(0))->getZExtValue();
@@ -4828,19 +4821,19 @@
   }
   case ISD::ATOMIC_CMP_SWAP_WITH_SUCCESS: {
     SDLoc DL(N);
-    SDVTList Tys = DAG.getVTList(MVT::Untyped, MVT::Other, MVT::Glue);
+    SDVTList Tys = DAG.getVTList(MVT::Untyped, MVT::i32, MVT::Other);
     SDValue Ops[] = { N->getOperand(0), N->getOperand(1),
                       lowerI128ToGR128(DAG, N->getOperand(2)),
                       lowerI128ToGR128(DAG, N->getOperand(3)) };
     MachineMemOperand *MMO = cast<AtomicSDNode>(N)->getMemOperand();
     SDValue Res = DAG.getMemIntrinsicNode(SystemZISD::ATOMIC_CMP_SWAP_128,
                                           DL, Tys, Ops, MVT::i128, MMO);
-    SDValue Success = emitSETCC(DAG, DL, Res.getValue(2),
+    SDValue Success = emitSETCC(DAG, DL, Res.getValue(1),
                                 SystemZ::CCMASK_CS, SystemZ::CCMASK_CS_EQ);
     Success = DAG.getZExtOrTrunc(Success, DL, N->getValueType(1));
     Results.push_back(lowerGR128ToI128(DAG, Res));
     Results.push_back(Success);
-    Results.push_back(Res.getValue(1));
+    Results.push_back(Res.getValue(2));
     break;
   }
   default:
@@ -5465,10 +5458,10 @@
   return SDValue();
 }
 
-static bool combineCCMask(SDValue &Glue, int &CCValid, int &CCMask) {
+static bool combineCCMask(SDValue &CCReg, int &CCValid, int &CCMask) {
   // We have a SELECT_CCMASK or BR_CCMASK comparing the condition code
-  // set by the glued instruction using the CCValid / CCMask masks,
-  // If the glued instruction is itself a (ICMP (SELECT_CCMASK)) testing
+  // set by the CCReg instruction using the CCValid / CCMask masks,
+  // If the CCReg instruction is itself a (ICMP (SELECT_CCMASK)) testing
   // the condition code set by some other instruction, see whether we
   // can directly use that condition code.
   bool Invert = false;
@@ -5481,15 +5474,13 @@
   else if (CCMask != SystemZ::CCMASK_CMP_EQ)
     return false;
 
-  // Verify that we have an ICMP that is the single user of a SELECT_CCMASK.
-  SDNode *ICmp = Glue.getNode();
+  // Verify that we have an ICMP that is the user of a SELECT_CCMASK.
+  SDNode *ICmp = CCReg.getNode();
   if (ICmp->getOpcode() != SystemZISD::ICMP)
     return false;
   SDNode *Select = ICmp->getOperand(0).getNode();
   if (Select->getOpcode() != SystemZISD::SELECT_CCMASK)
     return false;
-  if (!Select->hasOneUse())
-    return false;
 
   // Verify that the ICMP compares against one of select values.
   auto *CompareVal = dyn_cast<ConstantSDNode>(ICmp->getOperand(1));
@@ -5516,25 +5507,8 @@
   if (Invert)
     CCMask ^= CCValid;
 
-  // Return the updated Glue link.
-  Glue = Select->getOperand(4);
-  return true;
-}
-
-static bool combineMergeChains(SDValue &Chain, SDValue Glue) {
-  // We are about to glue an instruction with input chain Chain to the
-  // instruction Glue.  Verify that this would not create an invalid
-  // topological sort due to intervening chain nodes.
-
-  SDNode *Node = Glue.getNode();
-  for (int ResNo = Node->getNumValues() - 1; ResNo >= 0; --ResNo)
-    if (Node->getValueType(ResNo) == MVT::Other) {
-      SDValue OutChain = SDValue(Node, ResNo);
-      // FIXME: We should be able to at least handle an intervening
-      // TokenFactor node by swapping chains around a bit ...
-      return Chain == OutChain;
-    }
-
+  // Return the updated CCReg link.
+  CCReg = Select->getOperand(4);
   return true;
 }
 
@@ -5551,15 +5525,14 @@
   int CCValidVal = CCValid->getZExtValue();
   int CCMaskVal = CCMask->getZExtValue();
   SDValue Chain = N->getOperand(0);
-  SDValue Glue = N->getOperand(4);
+  SDValue CCReg = N->getOperand(4);
 
-  if (combineCCMask(Glue, CCValidVal, CCMaskVal)
-      && combineMergeChains(Chain, Glue))
+  if (combineCCMask(CCReg, CCValidVal, CCMaskVal))
     return DAG.getNode(SystemZISD::BR_CCMASK, SDLoc(N), N->getValueType(0),
                        Chain,
                        DAG.getConstant(CCValidVal, SDLoc(N), MVT::i32),
                        DAG.getConstant(CCMaskVal, SDLoc(N), MVT::i32),
-                       N->getOperand(3), Glue);
+                       N->getOperand(3), CCReg);
   return SDValue();
 }
 
@@ -5575,15 +5548,15 @@
 
   int CCValidVal = CCValid->getZExtValue();
   int CCMaskVal = CCMask->getZExtValue();
-  SDValue Glue = N->getOperand(4);
+  SDValue CCReg = N->getOperand(4);
 
-  if (combineCCMask(Glue, CCValidVal, CCMaskVal))
+  if (combineCCMask(CCReg, CCValidVal, CCMaskVal))
     return DAG.getNode(SystemZISD::SELECT_CCMASK, SDLoc(N), N->getValueType(0),
                        N->getOperand(0),
                        N->getOperand(1),
                        DAG.getConstant(CCValidVal, SDLoc(N), MVT::i32),
                        DAG.getConstant(CCMaskVal, SDLoc(N), MVT::i32),
-                       Glue);
+                       CCReg);
   return SDValue();
 }
 
@@ -5951,6 +5924,103 @@
   return Reg;
 }
 
+// The CC operand of MI might be missing a kill marker because there
+// were multiple uses of CC, and ISel didn't know which to mark.
+// Figure out whether MI should have had a kill marker.
+static bool checkCCKill(MachineInstr &MI, MachineBasicBlock *MBB) {
+  // Scan forward through BB for a use/def of CC.
+  MachineBasicBlock::iterator miI(std::next(MachineBasicBlock::iterator(MI)));
+  for (MachineBasicBlock::iterator miE = MBB->end(); miI != miE; ++miI) {
+    const MachineInstr& mi = *miI;
+    if (mi.readsRegister(SystemZ::CC))
+      return false;
+    if (mi.definesRegister(SystemZ::CC))
+      break; // Should have kill-flag - update below.
+  }
+
+  // If we hit the end of the block, check whether CC is live into a
+  // successor.
+  if (miI == MBB->end()) {
+    for (auto SI = MBB->succ_begin(), SE = MBB->succ_end(); SI != SE; ++SI)
+      if ((*SI)->isLiveIn(SystemZ::CC))
+        return false;
+  }
+
+  return true;
+}
+
+// Return true if it is OK for this Select pseudo-opcode to be cascaded
+// together with other Select pseudo-opcodes into a single basic-block with
+// a conditional jump around it.
+static bool isSelectPseudo(MachineInstr &MI) {
+  switch (MI.getOpcode()) {
+  case SystemZ::Select32:
+  case SystemZ::Select64:
+  case SystemZ::SelectF32:
+  case SystemZ::SelectF64:
+  case SystemZ::SelectF128:
+  case SystemZ::SelectVR32:
+  case SystemZ::SelectVR64:
+  case SystemZ::SelectVR128:
+    return true;
+
+  default:
+    return false;
+  }
+}
+
+// Helper function, which inserts PHI functions into SinkMBB:
+//   %Result(i) = phi [ %FalseValue(i), FalseMBB ], [ %TrueValue(i), TrueMBB ],
+// where %FalseValue(i) and %TrueValue(i) are taken from the consequent Selects
+// in [MIItBegin, MIItEnd) range.
+static void createPHIsForSelects(MachineBasicBlock::iterator MIItBegin,
+                                 MachineBasicBlock::iterator MIItEnd,
+                                 MachineBasicBlock *TrueMBB,
+                                 MachineBasicBlock *FalseMBB,
+                                 MachineBasicBlock *SinkMBB) {
+  MachineFunction *MF = TrueMBB->getParent();
+  const TargetInstrInfo *TII = MF->getSubtarget().getInstrInfo();
+
+  unsigned CCValid = MIItBegin->getOperand(3).getImm();
+  unsigned CCMask = MIItBegin->getOperand(4).getImm();
+  DebugLoc DL = MIItBegin->getDebugLoc();
+
+  MachineBasicBlock::iterator SinkInsertionPoint = SinkMBB->begin();
+
+  // As we are creating the PHIs, we have to be careful if there is more than
+  // one.  Later Selects may reference the results of earlier Selects, but later
+  // PHIs have to reference the individual true/false inputs from earlier PHIs.
+  // That also means that PHI construction must work forward from earlier to
+  // later, and that the code must maintain a mapping from earlier PHI's
+  // destination registers, and the registers that went into the PHI.
+  DenseMap<unsigned, std::pair<unsigned, unsigned>> RegRewriteTable;
+
+  for (MachineBasicBlock::iterator MIIt = MIItBegin; MIIt != MIItEnd; ++MIIt) {
+    unsigned DestReg = MIIt->getOperand(0).getReg();
+    unsigned TrueReg = MIIt->getOperand(1).getReg();
+    unsigned FalseReg = MIIt->getOperand(2).getReg();
+
+    // If this Select we are generating is the opposite condition from
+    // the jump we generated, then we have to swap the operands for the
+    // PHI that is going to be generated.
+    if (MIIt->getOperand(4).getImm() == (CCValid ^ CCMask))
+      std::swap(TrueReg, FalseReg);
+
+    if (RegRewriteTable.find(TrueReg) != RegRewriteTable.end())
+      TrueReg = RegRewriteTable[TrueReg].first;
+
+    if (RegRewriteTable.find(FalseReg) != RegRewriteTable.end())
+      FalseReg = RegRewriteTable[FalseReg].second;
+
+    BuildMI(*SinkMBB, SinkInsertionPoint, DL, TII->get(SystemZ::PHI), DestReg)
+      .addReg(TrueReg).addMBB(TrueMBB)
+      .addReg(FalseReg).addMBB(FalseMBB);
+
+    // Add this PHI to the rewrite table.
+    RegRewriteTable[DestReg] = std::make_pair(TrueReg, FalseReg);
+  }
+}
+
 // Implement EmitInstrWithCustomInserter for pseudo Select* instruction MI.
 MachineBasicBlock *
 SystemZTargetLowering::emitSelect(MachineInstr &MI,
@@ -5958,17 +6028,37 @@
   const SystemZInstrInfo *TII =
       static_cast<const SystemZInstrInfo *>(Subtarget.getInstrInfo());
 
-  unsigned DestReg = MI.getOperand(0).getReg();
-  unsigned TrueReg = MI.getOperand(1).getReg();
-  unsigned FalseReg = MI.getOperand(2).getReg();
   unsigned CCValid = MI.getOperand(3).getImm();
   unsigned CCMask = MI.getOperand(4).getImm();
   DebugLoc DL = MI.getDebugLoc();
 
+  // If we have a sequence of Select* pseudo instructions using the
+  // same condition code value, we want to expand all of them into
+  // a single pair of basic blocks using the same condition.
+  MachineInstr *LastMI = &MI;
+  MachineBasicBlock::iterator NextMIIt =
+      std::next(MachineBasicBlock::iterator(MI));
+
+  if (isSelectPseudo(MI))
+    while (NextMIIt != MBB->end() && isSelectPseudo(*NextMIIt) &&
+           NextMIIt->getOperand(3).getImm() == CCValid &&
+           (NextMIIt->getOperand(4).getImm() == CCMask ||
+            NextMIIt->getOperand(4).getImm() == (CCValid ^ CCMask))) {
+      LastMI = &*NextMIIt;
+      ++NextMIIt;
+    }
+
   MachineBasicBlock *StartMBB = MBB;
   MachineBasicBlock *JoinMBB  = splitBlockBefore(MI, MBB);
   MachineBasicBlock *FalseMBB = emitBlockAfter(StartMBB);
 
+  // Unless CC was killed in the last Select instruction, mark it as
+  // live-in to both FalseMBB and JoinMBB.
+  if (!LastMI->killsRegister(SystemZ::CC) && !checkCCKill(*LastMI, JoinMBB)) {
+    FalseMBB->addLiveIn(SystemZ::CC);
+    JoinMBB->addLiveIn(SystemZ::CC);
+  }
+
   //  StartMBB:
   //   BRC CCMask, JoinMBB
   //   # fallthrough to FalseMBB
@@ -5987,11 +6077,12 @@
   //   %Result = phi [ %FalseReg, FalseMBB ], [ %TrueReg, StartMBB ]
   //  ...
   MBB = JoinMBB;
-  BuildMI(*MBB, MI, DL, TII->get(SystemZ::PHI), DestReg)
-    .addReg(TrueReg).addMBB(StartMBB)
-    .addReg(FalseReg).addMBB(FalseMBB);
+  MachineBasicBlock::iterator MIItBegin = MachineBasicBlock::iterator(MI);
+  MachineBasicBlock::iterator MIItEnd =
+      std::next(MachineBasicBlock::iterator(LastMI));
+  createPHIsForSelects(MIItBegin, MIItEnd, StartMBB, FalseMBB, MBB);
 
-  MI.eraseFromParent();
+  StartMBB->erase(MIItBegin, MIItEnd);
   return JoinMBB;
 }
 
@@ -6053,6 +6144,13 @@
   MachineBasicBlock *JoinMBB  = splitBlockBefore(MI, MBB);
   MachineBasicBlock *FalseMBB = emitBlockAfter(StartMBB);
 
+  // Unless CC was killed in the CondStore instruction, mark it as
+  // live-in to both FalseMBB and JoinMBB.
+  if (!MI.killsRegister(SystemZ::CC) && !checkCCKill(MI, JoinMBB)) {
+    FalseMBB->addLiveIn(SystemZ::CC);
+    JoinMBB->addLiveIn(SystemZ::CC);
+  }
+
   //  StartMBB:
   //   BRC CCMask, JoinMBB
   //   # fallthrough to FalseMBB
diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.h b/llvm/lib/Target/SystemZ/SystemZISelLowering.h
index c0d1997..16a8291 100644
--- a/llvm/lib/Target/SystemZ/SystemZISelLowering.h
+++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.h
@@ -142,11 +142,11 @@
 
   // Transaction begin.  The first operand is the chain, the second
   // the TDB pointer, and the third the immediate control field.
-  // Returns chain and glue.
+  // Returns CC value and chain.
   TBEGIN,
   TBEGIN_NOFLOAT,
 
-  // Transaction end.  Just the chain operand.  Returns chain and glue.
+  // Transaction end.  Just the chain operand.  Returns CC value and chain.
   TEND,
 
   // Create a vector constant by filling byte N of the result with bit
@@ -308,8 +308,8 @@
   // Operand 5: the width of the field in bits (8 or 16)
   ATOMIC_CMP_SWAPW,
 
-  // Atomic compare-and-swap returning glue (condition code).
-  // Val, OUTCHAIN, glue = ATOMIC_CMP_SWAP(INCHAIN, ptr, cmp, swap)
+  // Atomic compare-and-swap returning CC value.
+  // Val, CC, OUTCHAIN = ATOMIC_CMP_SWAP(INCHAIN, ptr, cmp, swap)
   ATOMIC_CMP_SWAP,
 
   // 128-bit atomic load.
@@ -321,7 +321,7 @@
   ATOMIC_STORE_128,
 
   // 128-bit atomic compare-and-swap.
-  // Val, OUTCHAIN, glue = ATOMIC_CMP_SWAP(INCHAIN, ptr, cmp, swap)
+  // Val, CC, OUTCHAIN = ATOMIC_CMP_SWAP(INCHAIN, ptr, cmp, swap)
   ATOMIC_CMP_SWAP_128,
 
   // Byte swapping load.
diff --git a/llvm/lib/Target/SystemZ/SystemZInstrFormats.td b/llvm/lib/Target/SystemZ/SystemZInstrFormats.td
index 8c990ec..4e7d665 100644
--- a/llvm/lib/Target/SystemZ/SystemZInstrFormats.td
+++ b/llvm/lib/Target/SystemZ/SystemZInstrFormats.td
@@ -3690,7 +3690,7 @@
                 RegisterOperand cls1, RegisterOperand cls2>
   : InstRR<opcode, (outs), (ins cls1:$R1, cls2:$R2),
            mnemonic#"\t$R1, $R2",
-           [(operator cls1:$R1, cls2:$R2)]> {
+           [(set CC, (operator cls1:$R1, cls2:$R2))]> {
   let OpKey = mnemonic#cls1;
   let OpType = "reg";
   let isCompare = 1;
@@ -3700,7 +3700,7 @@
                  RegisterOperand cls1, RegisterOperand cls2>
   : InstRRE<opcode, (outs), (ins cls1:$R1, cls2:$R2),
             mnemonic#"\t$R1, $R2",
-            [(operator cls1:$R1, cls2:$R2)]> {
+            [(set CC, (operator cls1:$R1, cls2:$R2))]> {
   let OpKey = mnemonic#cls1;
   let OpType = "reg";
   let isCompare = 1;
@@ -3710,7 +3710,7 @@
                 RegisterOperand cls, Immediate imm>
   : InstRIa<opcode, (outs), (ins cls:$R1, imm:$I2),
             mnemonic#"\t$R1, $I2",
-            [(operator cls:$R1, imm:$I2)]> {
+            [(set CC, (operator cls:$R1, imm:$I2))]> {
   let isCompare = 1;
 }
 
@@ -3718,7 +3718,7 @@
                  RegisterOperand cls, Immediate imm>
   : InstRILa<opcode, (outs), (ins cls:$R1, imm:$I2),
              mnemonic#"\t$R1, $I2",
-             [(operator cls:$R1, imm:$I2)]> {
+             [(set CC, (operator cls:$R1, imm:$I2))]> {
   let isCompare = 1;
 }
 
@@ -3726,7 +3726,7 @@
                    RegisterOperand cls, SDPatternOperator load>
   : InstRILb<opcode, (outs), (ins cls:$R1, pcrel32:$RI2),
              mnemonic#"\t$R1, $RI2",
-             [(operator cls:$R1, (load pcrel32:$RI2))]> {
+             [(set CC, (operator cls:$R1, (load pcrel32:$RI2)))]> {
   let isCompare = 1;
   let mayLoad = 1;
   // We want PC-relative addresses to be tried ahead of BD and BDX addresses.
@@ -3740,7 +3740,7 @@
                 AddressingMode mode = bdxaddr12only>
   : InstRXa<opcode, (outs), (ins cls:$R1, mode:$XBD2),
             mnemonic#"\t$R1, $XBD2",
-            [(operator cls:$R1, (load mode:$XBD2))]> {
+            [(set CC, (operator cls:$R1, (load mode:$XBD2)))]> {
   let OpKey = mnemonic#"r"#cls;
   let OpType = "mem";
   let isCompare = 1;
@@ -3752,7 +3752,7 @@
                  RegisterOperand cls, SDPatternOperator load, bits<5> bytes>
   : InstRXE<opcode, (outs), (ins cls:$R1, bdxaddr12only:$XBD2),
             mnemonic#"\t$R1, $XBD2",
-            [(operator cls:$R1, (load bdxaddr12only:$XBD2))]> {
+            [(set CC, (operator cls:$R1, (load bdxaddr12only:$XBD2)))]> {
   let OpKey = mnemonic#"r"#cls;
   let OpType = "mem";
   let isCompare = 1;
@@ -3766,7 +3766,7 @@
                  AddressingMode mode = bdxaddr20only>
   : InstRXYa<opcode, (outs), (ins cls:$R1, mode:$XBD2),
              mnemonic#"\t$R1, $XBD2",
-             [(operator cls:$R1, (load mode:$XBD2))]> {
+             [(set CC, (operator cls:$R1, (load mode:$XBD2)))]> {
   let OpKey = mnemonic#"r"#cls;
   let OpType = "mem";
   let isCompare = 1;
@@ -3826,7 +3826,7 @@
                 AddressingMode mode = bdaddr12only>
   : InstSI<opcode, (outs), (ins mode:$BD1, imm:$I2),
            mnemonic#"\t$BD1, $I2",
-           [(operator (load mode:$BD1), imm:$I2)]> {
+           [(set CC, (operator (load mode:$BD1), imm:$I2))]> {
   let isCompare = 1;
   let mayLoad = 1;
 }
@@ -3835,7 +3835,7 @@
                  SDPatternOperator load, Immediate imm>
   : InstSIL<opcode, (outs), (ins bdaddr12only:$BD1, imm:$I2),
             mnemonic#"\t$BD1, $I2",
-            [(operator (load bdaddr12only:$BD1), imm:$I2)]> {
+            [(set CC, (operator (load bdaddr12only:$BD1), imm:$I2))]> {
   let isCompare = 1;
   let mayLoad = 1;
 }
@@ -3845,7 +3845,7 @@
                  AddressingMode mode = bdaddr20only>
   : InstSIY<opcode, (outs), (ins mode:$BD1, imm:$I2),
             mnemonic#"\t$BD1, $I2",
-            [(operator (load mode:$BD1), imm:$I2)]> {
+            [(set CC, (operator (load mode:$BD1), imm:$I2))]> {
   let isCompare = 1;
   let mayLoad = 1;
 }
@@ -3866,7 +3866,7 @@
                   TypedReg tr, bits<4> type>
   : InstVRRa<opcode, (outs), (ins tr.op:$V1, tr.op:$V2),
              mnemonic#"\t$V1, $V2",
-             [(operator (tr.vt tr.op:$V1), (tr.vt tr.op:$V2))]> {
+             [(set CC, (operator (tr.vt tr.op:$V1), (tr.vt tr.op:$V2)))]> {
   let isCompare = 1;
   let M3 = type;
   let M4 = 0;
@@ -3895,14 +3895,26 @@
   let isCompare = 1;
 }
 
+class TestInherentS<string mnemonic, bits<16> opcode,
+                    SDPatternOperator operator>
+  : InstS<opcode, (outs), (ins), mnemonic, [(set CC, (operator))]> {
+  let BD2 = 0;
+}
+
 class TestRXE<string mnemonic, bits<16> opcode, SDPatternOperator operator,
               RegisterOperand cls>
   : InstRXE<opcode, (outs), (ins cls:$R1, bdxaddr12only:$XBD2),
             mnemonic#"\t$R1, $XBD2",
-            [(operator cls:$R1, bdxaddr12only:$XBD2)]> {
+            [(set CC, (operator cls:$R1, bdxaddr12only:$XBD2))]> {
   let M3 = 0;
 }
 
+class TestBinarySIL<string mnemonic, bits<16> opcode,
+                    SDPatternOperator operator, Immediate imm>
+  : InstSIL<opcode, (outs), (ins bdaddr12only:$BD1, imm:$I2),
+            mnemonic#"\t$BD1, $I2",
+            [(set CC, (operator bdaddr12only:$BD1, imm:$I2))]>;
+
 class TestRSL<string mnemonic, bits<16> opcode>
   : InstRSLa<opcode, (outs), (ins bdladdr12onlylen4:$BDL1),
              mnemonic#"\t$BDL1", []> {
@@ -4529,11 +4541,6 @@
   let isCodeGenOnly = 1;
 }
 
-// Like SideEffectBinarySIL, but expanded later.
-class SideEffectBinarySILPseudo<SDPatternOperator operator, Immediate imm>
-  : Pseudo<(outs), (ins bdaddr12only:$BD1, imm:$I2),
-           [(operator bdaddr12only:$BD1, imm:$I2)]>;
-
 // Like UnaryRI, but expanded after RA depending on the choice of register.
 class UnaryRIPseudo<SDPatternOperator operator, RegisterOperand cls,
                     Immediate imm>
@@ -4593,7 +4600,8 @@
 // Like CompareRI, but expanded after RA depending on the choice of register.
 class CompareRIPseudo<SDPatternOperator operator, RegisterOperand cls,
                       Immediate imm>
-  : Pseudo<(outs), (ins cls:$R1, imm:$I2), [(operator cls:$R1, imm:$I2)]> {
+  : Pseudo<(outs), (ins cls:$R1, imm:$I2),
+           [(set CC, (operator cls:$R1, imm:$I2))]> {
   let isCompare = 1;
 }
 
@@ -4602,13 +4610,18 @@
                        SDPatternOperator load, bits<5> bytes,
                        AddressingMode mode = bdxaddr20only>
   : Pseudo<(outs), (ins cls:$R1, mode:$XBD2),
-           [(operator cls:$R1, (load mode:$XBD2))]> {
+           [(set CC, (operator cls:$R1, (load mode:$XBD2)))]> {
   let mayLoad = 1;
   let Has20BitOffset = 1;
   let HasIndex = 1;
   let AccessBytes = bytes;
 }
 
+// Like TestBinarySIL, but expanded later.
+class TestBinarySILPseudo<SDPatternOperator operator, Immediate imm>
+  : Pseudo<(outs), (ins bdaddr12only:$BD1, imm:$I2),
+           [(set CC, (operator bdaddr12only:$BD1, imm:$I2))]>;
+
 // Like CondBinaryRRF, but expanded after RA depending on the choice of
 // register.
 class CondBinaryRRFPseudo<RegisterOperand cls1, RegisterOperand cls2>
@@ -4690,17 +4703,13 @@
                                             imm32zx4:$valid, imm32zx4:$cc))]> {
   let usesCustomInserter = 1;
   let hasNoSchedulingInfo = 1;
-  // Although the instructions used by these nodes do not in themselves
-  // change CC, the insertion requires new blocks, and CC cannot be live
-  // across them.
-  let Defs = [CC];
   let Uses = [CC];
 }
 
 // Stores $new to $addr if $cc is true ("" case) or false (Inv case).
 multiclass CondStores<RegisterOperand cls, SDPatternOperator store,
                       SDPatternOperator load, AddressingMode mode> {
-  let Defs = [CC], Uses = [CC], usesCustomInserter = 1, hasNoSchedulingInfo = 1,
+  let Uses = [CC], usesCustomInserter = 1, hasNoSchedulingInfo = 1,
       mayLoad = 1, mayStore = 1 in {
     def "" : Pseudo<(outs),
                     (ins cls:$new, mode:$addr, imm32zx4:$valid, imm32zx4:$cc),
@@ -4782,6 +4791,22 @@
   }
 }
 
+// The same, but setting a CC result as comparion operator.
+multiclass CompareMemorySS<string mnemonic, bits<8> opcode,
+                          SDPatternOperator sequence, SDPatternOperator loop> {
+  def "" : SideEffectBinarySSa<mnemonic, opcode>;
+  let usesCustomInserter = 1, hasNoSchedulingInfo = 1 in {
+    def Sequence : Pseudo<(outs), (ins bdaddr12only:$dest, bdaddr12only:$src,
+                                       imm64:$length),
+                           [(set CC, (sequence bdaddr12only:$dest, bdaddr12only:$src,
+                                               imm64:$length))]>;
+    def Loop : Pseudo<(outs), (ins bdaddr12only:$dest, bdaddr12only:$src,
+                                   imm64:$length, GR64:$count256),
+                      [(set CC, (loop bdaddr12only:$dest, bdaddr12only:$src,
+                                      imm64:$length, GR64:$count256))]>;
+  }
+}
+
 // Define an instruction that operates on two strings, both terminated
 // by the character in R0.  The instruction processes a CPU-determinated
 // number of bytes at a time and sets CC to 3 if the instruction needs
@@ -4851,7 +4876,8 @@
 // An alias of a CompareRI, but with different register sizes.
 class CompareAliasRI<SDPatternOperator operator, RegisterOperand cls,
                      Immediate imm>
-  : Alias<4, (outs), (ins cls:$R1, imm:$I2), [(operator cls:$R1, imm:$I2)]> {
+  : Alias<4, (outs), (ins cls:$R1, imm:$I2),
+          [(set CC, (operator cls:$R1, imm:$I2))]> {
   let isCompare = 1;
 }
 
diff --git a/llvm/lib/Target/SystemZ/SystemZInstrInfo.cpp b/llvm/lib/Target/SystemZ/SystemZInstrInfo.cpp
index 572446c..c12d02b 100644
--- a/llvm/lib/Target/SystemZ/SystemZInstrInfo.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZInstrInfo.cpp
@@ -906,6 +906,23 @@
     return;
   }
 
+  // Move CC value from/to a GR32.
+  if (SrcReg == SystemZ::CC) {
+    auto MIB = BuildMI(MBB, MBBI, DL, get(SystemZ::IPM), DestReg);
+    if (KillSrc) {
+      const MachineFunction *MF = MBB.getParent();
+      const TargetRegisterInfo *TRI = MF->getSubtarget().getRegisterInfo();
+      MIB->addRegisterKilled(SrcReg, TRI);
+    }
+    return;
+  }
+  if (DestReg == SystemZ::CC) {
+    BuildMI(MBB, MBBI, DL, get(SystemZ::TMLH))
+      .addReg(SrcReg, getKillRegState(KillSrc))
+      .addImm(3 << (SystemZ::IPM_CC - 16));
+    return;
+  }
+
   // Everything else needs only one instruction.
   unsigned Opcode;
   if (SystemZ::GR64BitRegClass.contains(DestReg, SrcReg))
diff --git a/llvm/lib/Target/SystemZ/SystemZInstrInfo.td b/llvm/lib/Target/SystemZ/SystemZInstrInfo.td
index d3ddb64..b5dd1c6 100644
--- a/llvm/lib/Target/SystemZ/SystemZInstrInfo.td
+++ b/llvm/lib/Target/SystemZ/SystemZInstrInfo.td
@@ -1493,7 +1493,7 @@
 
 // Memory-to-memory comparison.
 let mayLoad = 1, Defs = [CC] in {
-  defm CLC : MemorySS<"clc", 0xD5, z_clc, z_clc_loop>;
+  defm CLC : CompareMemorySS<"clc", 0xD5, z_clc, z_clc_loop>;
   def CLCL  : SideEffectBinaryMemMemRR<"clcl", 0x0F, GR128, GR128>;
   def CLCLE : SideEffectTernaryMemMemRS<"clcle", 0xA9, GR128, GR128>;
   def CLCLU : SideEffectTernaryMemMemRSY<"clclu", 0xEB8F, GR128, GR128>;
@@ -1934,16 +1934,16 @@
 let hasSideEffects = 1, Predicates = [FeatureTransactionalExecution] in {
   // Transaction Begin
   let mayStore = 1, usesCustomInserter = 1, Defs = [CC] in {
-    def TBEGIN : SideEffectBinarySIL<"tbegin", 0xE560, z_tbegin, imm32zx16>;
+    def TBEGIN : TestBinarySIL<"tbegin", 0xE560, z_tbegin, imm32zx16>;
     let hasNoSchedulingInfo = 1 in
-     def TBEGIN_nofloat : SideEffectBinarySILPseudo<z_tbegin_nofloat, imm32zx16>;
+     def TBEGIN_nofloat : TestBinarySILPseudo<z_tbegin_nofloat, imm32zx16>;
     def TBEGINC : SideEffectBinarySIL<"tbeginc", 0xE561,
                                       int_s390_tbeginc, imm32zx16>;
   }
 
   // Transaction End
   let Defs = [CC] in
-    def TEND : SideEffectInherentS<"tend", 0xB2F8, z_tend>;
+    def TEND : TestInherentS<"tend", 0xB2F8, z_tend>;
 
   // Transaction Abort
   let isTerminator = 1, isBarrier = 1, mayStore = 1,
diff --git a/llvm/lib/Target/SystemZ/SystemZOperators.td b/llvm/lib/Target/SystemZ/SystemZOperators.td
index d067f33..6bec1e0 100644
--- a/llvm/lib/Target/SystemZ/SystemZOperators.td
+++ b/llvm/lib/Target/SystemZ/SystemZOperators.td
@@ -15,19 +15,24 @@
 def SDT_CallSeqEnd          : SDCallSeqEnd<[SDTCisVT<0, i64>,
                                             SDTCisVT<1, i64>]>;
 def SDT_ZCall               : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>;
-def SDT_ZCmp                : SDTypeProfile<0, 2, [SDTCisSameAs<0, 1>]>;
-def SDT_ZICmp               : SDTypeProfile<0, 3,
-                                            [SDTCisSameAs<0, 1>,
-                                             SDTCisVT<2, i32>]>;
-def SDT_ZBRCCMask           : SDTypeProfile<0, 3,
+def SDT_ZCmp                : SDTypeProfile<1, 2,
+                                            [SDTCisVT<0, i32>,
+                                             SDTCisSameAs<1, 2>]>;
+def SDT_ZICmp               : SDTypeProfile<1, 3,
+                                            [SDTCisVT<0, i32>,
+                                             SDTCisSameAs<1, 2>,
+                                             SDTCisVT<3, i32>]>;
+def SDT_ZBRCCMask           : SDTypeProfile<0, 4,
                                             [SDTCisVT<0, i32>,
                                              SDTCisVT<1, i32>,
-                                             SDTCisVT<2, OtherVT>]>;
-def SDT_ZSelectCCMask       : SDTypeProfile<1, 4,
+                                             SDTCisVT<2, OtherVT>,
+                                             SDTCisVT<3, i32>]>;
+def SDT_ZSelectCCMask       : SDTypeProfile<1, 5,
                                             [SDTCisSameAs<0, 1>,
                                              SDTCisSameAs<1, 2>,
                                              SDTCisVT<3, i32>,
-                                             SDTCisVT<4, i32>]>;
+                                             SDTCisVT<4, i32>,
+                                             SDTCisVT<5, i32>]>;
 def SDT_ZWrapPtr            : SDTypeProfile<1, 1,
                                             [SDTCisSameAs<0, 1>,
                                              SDTCisPtrTy<0>]>;
@@ -47,45 +52,67 @@
                                              SDTCisVT<3, i32>,
                                              SDTCisVT<4, i32>,
                                              SDTCisVT<5, i32>]>;
-def SDT_ZAtomicCmpSwapW     : SDTypeProfile<1, 6,
+def SDT_ZAtomicCmpSwapW     : SDTypeProfile<2, 6,
                                             [SDTCisVT<0, i32>,
-                                             SDTCisPtrTy<1>,
-                                             SDTCisVT<2, i32>,
+                                             SDTCisVT<1, i32>,
+                                             SDTCisPtrTy<2>,
                                              SDTCisVT<3, i32>,
                                              SDTCisVT<4, i32>,
                                              SDTCisVT<5, i32>,
-                                             SDTCisVT<6, i32>]>;
-def SDT_ZAtomicCmpSwap      : SDTypeProfile<1, 3,
+                                             SDTCisVT<6, i32>,
+                                             SDTCisVT<7, i32>]>;
+def SDT_ZAtomicCmpSwap      : SDTypeProfile<2, 3,
                                             [SDTCisInt<0>,
-                                             SDTCisPtrTy<1>,
-                                             SDTCisSameAs<0, 2>,
-                                             SDTCisSameAs<0, 3>]>;
+                                             SDTCisVT<1, i32>,
+                                             SDTCisPtrTy<2>,
+                                             SDTCisSameAs<0, 3>,
+                                             SDTCisSameAs<0, 4>]>;
 def SDT_ZAtomicLoad128      : SDTypeProfile<1, 1,
                                             [SDTCisVT<0, untyped>,
                                              SDTCisPtrTy<1>]>;
 def SDT_ZAtomicStore128     : SDTypeProfile<0, 2,
                                             [SDTCisVT<0, untyped>,
                                              SDTCisPtrTy<1>]>;
-def SDT_ZAtomicCmpSwap128   : SDTypeProfile<1, 3,
+def SDT_ZAtomicCmpSwap128   : SDTypeProfile<2, 3,
                                             [SDTCisVT<0, untyped>,
-                                             SDTCisPtrTy<1>,
-                                             SDTCisVT<2, untyped>,
-                                             SDTCisVT<3, untyped>]>;
+                                             SDTCisVT<1, i32>,
+                                             SDTCisPtrTy<2>,
+                                             SDTCisVT<3, untyped>,
+                                             SDTCisVT<4, untyped>]>;
 def SDT_ZMemMemLength       : SDTypeProfile<0, 3,
                                             [SDTCisPtrTy<0>,
                                              SDTCisPtrTy<1>,
                                              SDTCisVT<2, i64>]>;
+def SDT_ZMemMemLengthCC     : SDTypeProfile<1, 3,
+                                            [SDTCisVT<0, i32>,
+                                             SDTCisPtrTy<1>,
+                                             SDTCisPtrTy<2>,
+                                             SDTCisVT<3, i64>]>;
 def SDT_ZMemMemLoop         : SDTypeProfile<0, 4,
                                             [SDTCisPtrTy<0>,
                                              SDTCisPtrTy<1>,
                                              SDTCisVT<2, i64>,
                                              SDTCisVT<3, i64>]>;
+def SDT_ZMemMemLoopCC       : SDTypeProfile<1, 4,
+                                            [SDTCisVT<0, i32>,
+                                             SDTCisPtrTy<1>,
+                                             SDTCisPtrTy<2>,
+                                             SDTCisVT<3, i64>,
+                                             SDTCisVT<4, i64>]>;
 def SDT_ZString             : SDTypeProfile<1, 3,
                                             [SDTCisPtrTy<0>,
                                              SDTCisPtrTy<1>,
                                              SDTCisPtrTy<2>,
                                              SDTCisVT<3, i32>]>;
-def SDT_ZI32Intrinsic       : SDTypeProfile<1, 0, [SDTCisVT<0, i32>]>;
+def SDT_ZStringCC           : SDTypeProfile<2, 3,
+                                            [SDTCisPtrTy<0>,
+                                             SDTCisVT<1, i32>,
+                                             SDTCisPtrTy<2>,
+                                             SDTCisPtrTy<3>,
+                                             SDTCisVT<4, i32>]>;
+def SDT_ZIPM                : SDTypeProfile<1, 1,
+                                            [SDTCisVT<0, i32>,
+                                             SDTCisVT<1, i32>]>;
 def SDT_ZPrefetch           : SDTypeProfile<0, 2,
                                             [SDTCisVT<0, i32>,
                                              SDTCisPtrTy<1>]>;
@@ -97,9 +124,12 @@
                                             [SDTCisInt<0>,
                                              SDTCisPtrTy<1>,
                                              SDTCisVT<2, OtherVT>]>;
-def SDT_ZTBegin             : SDTypeProfile<0, 2,
-                                            [SDTCisPtrTy<0>,
-                                             SDTCisVT<1, i32>]>;
+def SDT_ZTBegin             : SDTypeProfile<1, 2,
+                                            [SDTCisVT<0, i32>,
+                                             SDTCisPtrTy<1>,
+                                             SDTCisVT<2, i32>]>;
+def SDT_ZTEnd               : SDTypeProfile<1, 0,
+                                            [SDTCisVT<0, i32>]>;
 def SDT_ZInsertVectorElt    : SDTypeProfile<1, 3,
                                             [SDTCisVec<0>,
                                              SDTCisSameAs<0, 1>,
@@ -115,10 +145,19 @@
 def SDT_ZVecUnary           : SDTypeProfile<1, 1,
                                             [SDTCisVec<0>,
                                              SDTCisSameAs<0, 1>]>;
+def SDT_ZVecUnaryCC         : SDTypeProfile<2, 1,
+                                            [SDTCisVec<0>,
+                                             SDTCisVT<1, i32>,
+                                             SDTCisSameAs<0, 2>]>;
 def SDT_ZVecBinary          : SDTypeProfile<1, 2,
                                             [SDTCisVec<0>,
                                              SDTCisSameAs<0, 1>,
                                              SDTCisSameAs<0, 2>]>;
+def SDT_ZVecBinaryCC        : SDTypeProfile<2, 2,
+                                            [SDTCisVec<0>,
+                                             SDTCisVT<1, i32>,
+                                             SDTCisSameAs<0, 2>,
+                                             SDTCisSameAs<0, 2>]>;
 def SDT_ZVecBinaryInt       : SDTypeProfile<1, 2,
                                             [SDTCisVec<0>,
                                              SDTCisSameAs<0, 1>,
@@ -127,10 +166,16 @@
                                             [SDTCisVec<0>,
                                              SDTCisVec<1>,
                                              SDTCisSameAs<1, 2>]>;
-def SDT_ZVecBinaryConvInt   : SDTypeProfile<1, 2,
+def SDT_ZVecBinaryConvCC    : SDTypeProfile<2, 2,
                                             [SDTCisVec<0>,
-                                             SDTCisVec<1>,
-                                             SDTCisVT<2, i32>]>;
+                                             SDTCisVT<1, i32>,
+                                             SDTCisVec<2>,
+                                             SDTCisSameAs<2, 3>]>;
+def SDT_ZVecBinaryConvIntCC : SDTypeProfile<2, 2,
+                                            [SDTCisVec<0>,
+                                             SDTCisVT<1, i32>,
+                                             SDTCisVec<2>,
+                                             SDTCisVT<3, i32>]>;
 def SDT_ZRotateMask         : SDTypeProfile<1, 2,
                                             [SDTCisVec<0>,
                                              SDTCisVT<1, i32>,
@@ -149,13 +194,28 @@
                                              SDTCisSameAs<0, 1>,
                                              SDTCisSameAs<0, 2>,
                                              SDTCisVT<3, i32>]>;
+def SDT_ZVecTernaryIntCC    : SDTypeProfile<2, 3,
+                                            [SDTCisVec<0>,
+                                             SDTCisVT<1, i32>,
+                                             SDTCisSameAs<0, 2>,
+                                             SDTCisSameAs<0, 3>,
+                                             SDTCisVT<4, i32>]>;
 def SDT_ZVecQuaternaryInt   : SDTypeProfile<1, 4,
                                             [SDTCisVec<0>,
                                              SDTCisSameAs<0, 1>,
                                              SDTCisSameAs<0, 2>,
                                              SDTCisSameAs<0, 3>,
                                              SDTCisVT<4, i32>]>;
-def SDT_ZTest               : SDTypeProfile<0, 2, [SDTCisVT<1, i64>]>;
+def SDT_ZVecQuaternaryIntCC : SDTypeProfile<2, 4,
+                                            [SDTCisVec<0>,
+                                             SDTCisVT<1, i32>,
+                                             SDTCisSameAs<0, 2>,
+                                             SDTCisSameAs<0, 3>,
+                                             SDTCisSameAs<0, 4>,
+                                             SDTCisVT<5, i32>]>;
+def SDT_ZTest               : SDTypeProfile<1, 2,
+                                            [SDTCisVT<0, i32>,
+                                             SDTCisVT<2, i64>]>;
 
 //===----------------------------------------------------------------------===//
 // Node definitions
@@ -188,13 +248,14 @@
 def z_pcrel_offset      : SDNode<"SystemZISD::PCREL_OFFSET",
                                  SDT_ZWrapOffset, []>;
 def z_iabs              : SDNode<"SystemZISD::IABS", SDTIntUnaryOp, []>;
-def z_icmp              : SDNode<"SystemZISD::ICMP", SDT_ZICmp, [SDNPOutGlue]>;
-def z_fcmp              : SDNode<"SystemZISD::FCMP", SDT_ZCmp, [SDNPOutGlue]>;
-def z_tm                : SDNode<"SystemZISD::TM", SDT_ZICmp, [SDNPOutGlue]>;
-def z_br_ccmask         : SDNode<"SystemZISD::BR_CCMASK", SDT_ZBRCCMask,
-                                 [SDNPHasChain, SDNPInGlue]>;
-def z_select_ccmask     : SDNode<"SystemZISD::SELECT_CCMASK", SDT_ZSelectCCMask,
-    		                 [SDNPInGlue]>;
+def z_icmp              : SDNode<"SystemZISD::ICMP", SDT_ZICmp>;
+def z_fcmp              : SDNode<"SystemZISD::FCMP", SDT_ZCmp>;
+def z_tm                : SDNode<"SystemZISD::TM", SDT_ZICmp>;
+def z_br_ccmask_1       : SDNode<"SystemZISD::BR_CCMASK", SDT_ZBRCCMask,
+                                 [SDNPHasChain]>;
+def z_select_ccmask_1   : SDNode<"SystemZISD::SELECT_CCMASK",
+                                 SDT_ZSelectCCMask>;
+def z_ipm_1             : SDNode<"SystemZISD::IPM", SDT_ZIPM>;
 def z_adjdynalloc       : SDNode<"SystemZISD::ADJDYNALLOC", SDT_ZAdjDynAlloc>;
 def z_popcnt            : SDNode<"SystemZISD::POPCNT", SDTIntUnaryOp>;
 def z_smul_lohi         : SDNode<"SystemZISD::SMUL_LOHI", SDT_ZGR128Binary>;
@@ -210,7 +271,7 @@
 def z_storebswap       : SDNode<"SystemZISD::STRV", SDT_ZStoreBSwap,
                                  [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
 
-def z_tdc               : SDNode<"SystemZISD::TDC", SDT_ZTest, [SDNPOutGlue]>;
+def z_tdc               : SDNode<"SystemZISD::TDC", SDT_ZTest>;
 
 // Defined because the index is an i32 rather than a pointer.
 def z_vector_insert     : SDNode<"ISD::INSERT_VECTOR_ELT",
@@ -229,10 +290,8 @@
                                  SDT_ZVecTernaryInt>;
 def z_permute           : SDNode<"SystemZISD::PERMUTE", SDT_ZVecTernary>;
 def z_pack              : SDNode<"SystemZISD::PACK", SDT_ZVecBinaryConv>;
-def z_packs_cc          : SDNode<"SystemZISD::PACKS_CC", SDT_ZVecBinaryConv,
-                                 [SDNPOutGlue]>;
-def z_packls_cc         : SDNode<"SystemZISD::PACKLS_CC", SDT_ZVecBinaryConv,
-                                 [SDNPOutGlue]>;
+def z_packs_cc          : SDNode<"SystemZISD::PACKS_CC", SDT_ZVecBinaryConvCC>;
+def z_packls_cc         : SDNode<"SystemZISD::PACKLS_CC", SDT_ZVecBinaryConvCC>;
 def z_unpack_high       : SDNode<"SystemZISD::UNPACK_HIGH", SDT_ZVecUnaryConv>;
 def z_unpackl_high      : SDNode<"SystemZISD::UNPACKL_HIGH", SDT_ZVecUnaryConv>;
 def z_unpack_low        : SDNode<"SystemZISD::UNPACK_LOW", SDT_ZVecUnaryConv>;
@@ -247,44 +306,30 @@
 def z_vicmpe            : SDNode<"SystemZISD::VICMPE", SDT_ZVecBinary>;
 def z_vicmph            : SDNode<"SystemZISD::VICMPH", SDT_ZVecBinary>;
 def z_vicmphl           : SDNode<"SystemZISD::VICMPHL", SDT_ZVecBinary>;
-def z_vicmpes           : SDNode<"SystemZISD::VICMPES", SDT_ZVecBinary,
-                                 [SDNPOutGlue]>;
-def z_vicmphs           : SDNode<"SystemZISD::VICMPHS", SDT_ZVecBinary,
-                                 [SDNPOutGlue]>;
-def z_vicmphls          : SDNode<"SystemZISD::VICMPHLS", SDT_ZVecBinary,
-                                 [SDNPOutGlue]>;
+def z_vicmpes           : SDNode<"SystemZISD::VICMPES", SDT_ZVecBinaryCC>;
+def z_vicmphs           : SDNode<"SystemZISD::VICMPHS", SDT_ZVecBinaryCC>;
+def z_vicmphls          : SDNode<"SystemZISD::VICMPHLS", SDT_ZVecBinaryCC>;
 def z_vfcmpe            : SDNode<"SystemZISD::VFCMPE", SDT_ZVecBinaryConv>;
 def z_vfcmph            : SDNode<"SystemZISD::VFCMPH", SDT_ZVecBinaryConv>;
 def z_vfcmphe           : SDNode<"SystemZISD::VFCMPHE", SDT_ZVecBinaryConv>;
-def z_vfcmpes           : SDNode<"SystemZISD::VFCMPES", SDT_ZVecBinaryConv,
-                                 [SDNPOutGlue]>;
-def z_vfcmphs           : SDNode<"SystemZISD::VFCMPHS", SDT_ZVecBinaryConv,
-                                 [SDNPOutGlue]>;
-def z_vfcmphes          : SDNode<"SystemZISD::VFCMPHES", SDT_ZVecBinaryConv,
-                                 [SDNPOutGlue]>;
+def z_vfcmpes           : SDNode<"SystemZISD::VFCMPES", SDT_ZVecBinaryConvCC>;
+def z_vfcmphs           : SDNode<"SystemZISD::VFCMPHS", SDT_ZVecBinaryConvCC>;
+def z_vfcmphes          : SDNode<"SystemZISD::VFCMPHES", SDT_ZVecBinaryConvCC>;
 def z_vextend           : SDNode<"SystemZISD::VEXTEND", SDT_ZVecUnaryConv>;
 def z_vround            : SDNode<"SystemZISD::VROUND", SDT_ZVecUnaryConv>;
-def z_vtm               : SDNode<"SystemZISD::VTM", SDT_ZCmp, [SDNPOutGlue]>;
-def z_vfae_cc           : SDNode<"SystemZISD::VFAE_CC", SDT_ZVecTernaryInt,
-                                 [SDNPOutGlue]>;
-def z_vfaez_cc          : SDNode<"SystemZISD::VFAEZ_CC", SDT_ZVecTernaryInt,
-                                 [SDNPOutGlue]>;
-def z_vfee_cc           : SDNode<"SystemZISD::VFEE_CC", SDT_ZVecBinary,
-                                 [SDNPOutGlue]>;
-def z_vfeez_cc          : SDNode<"SystemZISD::VFEEZ_CC", SDT_ZVecBinary,
-                                 [SDNPOutGlue]>;
-def z_vfene_cc          : SDNode<"SystemZISD::VFENE_CC", SDT_ZVecBinary,
-                                 [SDNPOutGlue]>;
-def z_vfenez_cc         : SDNode<"SystemZISD::VFENEZ_CC", SDT_ZVecBinary,
-                                 [SDNPOutGlue]>;
-def z_vistr_cc          : SDNode<"SystemZISD::VISTR_CC", SDT_ZVecUnary,
-                                 [SDNPOutGlue]>;
-def z_vstrc_cc          : SDNode<"SystemZISD::VSTRC_CC", SDT_ZVecQuaternaryInt,
-                                 [SDNPOutGlue]>;
+def z_vtm               : SDNode<"SystemZISD::VTM", SDT_ZCmp>;
+def z_vfae_cc           : SDNode<"SystemZISD::VFAE_CC", SDT_ZVecTernaryIntCC>;
+def z_vfaez_cc          : SDNode<"SystemZISD::VFAEZ_CC", SDT_ZVecTernaryIntCC>;
+def z_vfee_cc           : SDNode<"SystemZISD::VFEE_CC", SDT_ZVecBinaryCC>;
+def z_vfeez_cc          : SDNode<"SystemZISD::VFEEZ_CC", SDT_ZVecBinaryCC>;
+def z_vfene_cc          : SDNode<"SystemZISD::VFENE_CC", SDT_ZVecBinaryCC>;
+def z_vfenez_cc         : SDNode<"SystemZISD::VFENEZ_CC", SDT_ZVecBinaryCC>;
+def z_vistr_cc          : SDNode<"SystemZISD::VISTR_CC", SDT_ZVecUnaryCC>;
+def z_vstrc_cc          : SDNode<"SystemZISD::VSTRC_CC",
+                                 SDT_ZVecQuaternaryIntCC>;
 def z_vstrcz_cc         : SDNode<"SystemZISD::VSTRCZ_CC",
-                                 SDT_ZVecQuaternaryInt, [SDNPOutGlue]>;
-def z_vftci             : SDNode<"SystemZISD::VFTCI", SDT_ZVecBinaryConvInt,
-                                 [SDNPOutGlue]>;
+                                 SDT_ZVecQuaternaryIntCC>;
+def z_vftci             : SDNode<"SystemZISD::VFTCI", SDT_ZVecBinaryConvIntCC>;
 
 class AtomicWOp<string name, SDTypeProfile profile = SDT_ZAtomicLoadBinaryW>
   : SDNode<"SystemZISD::"##name, profile,
@@ -305,11 +350,11 @@
 def z_atomic_cmp_swap   : SDNode<"SystemZISD::ATOMIC_CMP_SWAP",
                                  SDT_ZAtomicCmpSwap,
                                  [SDNPHasChain, SDNPMayStore, SDNPMayLoad,
-                                  SDNPOutGlue, SDNPMemOperand]>;
+                                  SDNPMemOperand]>;
 def z_atomic_cmp_swapw  : SDNode<"SystemZISD::ATOMIC_CMP_SWAPW",
                                  SDT_ZAtomicCmpSwapW,
                                  [SDNPHasChain, SDNPMayStore, SDNPMayLoad,
-                                  SDNPOutGlue, SDNPMemOperand]>;
+                                  SDNPMemOperand]>;
 
 def z_atomic_load_128   : SDNode<"SystemZISD::ATOMIC_LOAD_128",
                                  SDT_ZAtomicLoad128,
@@ -320,7 +365,7 @@
 def z_atomic_cmp_swap_128 : SDNode<"SystemZISD::ATOMIC_CMP_SWAP_128",
                                    SDT_ZAtomicCmpSwap128,
                                    [SDNPHasChain, SDNPMayStore, SDNPMayLoad,
-                                    SDNPOutGlue, SDNPMemOperand]>;
+                                    SDNPMemOperand]>;
 
 def z_mvc               : SDNode<"SystemZISD::MVC", SDT_ZMemMemLength,
                                  [SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
@@ -338,30 +383,26 @@
                                   [SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
 def z_xc_loop           : SDNode<"SystemZISD::XC_LOOP", SDT_ZMemMemLoop,
                                   [SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
-def z_clc               : SDNode<"SystemZISD::CLC", SDT_ZMemMemLength,
-                                 [SDNPHasChain, SDNPOutGlue, SDNPMayLoad]>;
-def z_clc_loop          : SDNode<"SystemZISD::CLC_LOOP", SDT_ZMemMemLoop,
-                                 [SDNPHasChain, SDNPOutGlue, SDNPMayLoad]>;
-def z_strcmp            : SDNode<"SystemZISD::STRCMP", SDT_ZString,
-                                 [SDNPHasChain, SDNPOutGlue, SDNPMayLoad]>;
+def z_clc               : SDNode<"SystemZISD::CLC", SDT_ZMemMemLengthCC,
+                                 [SDNPHasChain, SDNPMayLoad]>;
+def z_clc_loop          : SDNode<"SystemZISD::CLC_LOOP", SDT_ZMemMemLoopCC,
+                                 [SDNPHasChain, SDNPMayLoad]>;
+def z_strcmp            : SDNode<"SystemZISD::STRCMP", SDT_ZStringCC,
+                                 [SDNPHasChain, SDNPMayLoad]>;
 def z_stpcpy            : SDNode<"SystemZISD::STPCPY", SDT_ZString,
                                  [SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
-def z_search_string     : SDNode<"SystemZISD::SEARCH_STRING", SDT_ZString,
-                                 [SDNPHasChain, SDNPOutGlue, SDNPMayLoad]>;
-def z_ipm               : SDNode<"SystemZISD::IPM", SDT_ZI32Intrinsic,
-                                 [SDNPInGlue]>;
+def z_search_string     : SDNode<"SystemZISD::SEARCH_STRING", SDT_ZStringCC,
+                                 [SDNPHasChain, SDNPMayLoad]>;
 def z_prefetch          : SDNode<"SystemZISD::PREFETCH", SDT_ZPrefetch,
                                  [SDNPHasChain, SDNPMayLoad, SDNPMayStore,
                                   SDNPMemOperand]>;
 
 def z_tbegin            : SDNode<"SystemZISD::TBEGIN", SDT_ZTBegin,
-                                 [SDNPHasChain, SDNPOutGlue, SDNPMayStore,
-                                  SDNPSideEffect]>;
+                                 [SDNPHasChain, SDNPMayStore, SDNPSideEffect]>;
 def z_tbegin_nofloat    : SDNode<"SystemZISD::TBEGIN_NOFLOAT", SDT_ZTBegin,
-                                 [SDNPHasChain, SDNPOutGlue, SDNPMayStore,
-                                  SDNPSideEffect]>;
-def z_tend              : SDNode<"SystemZISD::TEND", SDTNone,
-                                 [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>;
+                                 [SDNPHasChain, SDNPMayStore, SDNPSideEffect]>;
+def z_tend              : SDNode<"SystemZISD::TEND", SDT_ZTEnd,
+                                 [SDNPHasChain, SDNPSideEffect]>;
 
 def z_vshl              : SDNode<"ISD::SHL", SDT_ZVecBinary>;
 def z_vsra              : SDNode<"ISD::SRA", SDT_ZVecBinary>;
@@ -382,6 +423,16 @@
 def z_strvg : PatFrag<(ops node:$src, node:$addr),
                       (z_storebswap node:$src, node:$addr, i64)>;
 
+// Fragments including CC as an implicit source.
+def z_br_ccmask
+  : PatFrag<(ops node:$valid, node:$mask, node:$bb),
+            (z_br_ccmask_1 node:$valid, node:$mask, node:$bb, CC)>;
+def z_select_ccmask
+  : PatFrag<(ops node:$true, node:$false, node:$valid, node:$mask),
+            (z_select_ccmask_1 node:$true, node:$false,
+                               node:$valid, node:$mask, CC)>;
+def z_ipm : PatFrag<(ops), (z_ipm_1 CC)>;
+
 // Signed and unsigned comparisons.
 def z_scmp : PatFrag<(ops node:$a, node:$b), (z_icmp node:$a, node:$b, imm), [{
   unsigned Type = cast<ConstantSDNode>(N->getOperand(2))->getZExtValue();
diff --git a/llvm/lib/Target/SystemZ/SystemZRegisterInfo.cpp b/llvm/lib/Target/SystemZ/SystemZRegisterInfo.cpp
index 91c7d1f..76ed6f8 100644
--- a/llvm/lib/Target/SystemZ/SystemZRegisterInfo.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZRegisterInfo.cpp
@@ -315,3 +315,11 @@
   const SystemZFrameLowering *TFI = getFrameLowering(MF);
   return TFI->hasFP(MF) ? SystemZ::R11D : SystemZ::R15D;
 }
+
+const TargetRegisterClass *
+SystemZRegisterInfo::getCrossCopyRegClass(const TargetRegisterClass *RC) const {
+  if (RC == &SystemZ::CCRRegClass)
+    return &SystemZ::GR32BitRegClass;
+  return RC;
+}
+
diff --git a/llvm/lib/Target/SystemZ/SystemZRegisterInfo.h b/llvm/lib/Target/SystemZ/SystemZRegisterInfo.h
index 8787a90..d64f776 100644
--- a/llvm/lib/Target/SystemZ/SystemZRegisterInfo.h
+++ b/llvm/lib/Target/SystemZ/SystemZRegisterInfo.h
@@ -44,6 +44,12 @@
     return &SystemZ::ADDR64BitRegClass;
   }
 
+  /// getCrossCopyRegClass - Returns a legal register class to copy a register
+  /// in the specified class to or from. Returns NULL if it is possible to copy
+  /// between a two registers of the specified class.
+  const TargetRegisterClass *
+  getCrossCopyRegClass(const TargetRegisterClass *RC) const override;
+
   bool getRegAllocationHints(unsigned VirtReg,
                              ArrayRef<MCPhysReg> Order,
                              SmallVectorImpl<MCPhysReg> &Hints,
diff --git a/llvm/lib/Target/SystemZ/SystemZRegisterInfo.td b/llvm/lib/Target/SystemZ/SystemZRegisterInfo.td
index a183d78..79ba753 100644
--- a/llvm/lib/Target/SystemZ/SystemZRegisterInfo.td
+++ b/llvm/lib/Target/SystemZ/SystemZRegisterInfo.td
@@ -296,8 +296,8 @@
 // The 2-bit condition code field of the PSW.  Every register named in an
 // inline asm needs a class associated with it.
 def CC : SystemZReg<"cc">;
-let isAllocatable = 0 in
-  def CCRegs : RegisterClass<"SystemZ", [i32], 32, (add CC)>;
+let isAllocatable = 0, CopyCost = -1 in
+  def CCR : RegisterClass<"SystemZ", [i32], 32, (add CC)>;
 
 // Access registers.
 class ACR32<bits<16> num, string n> : SystemZReg<n> {
diff --git a/llvm/lib/Target/SystemZ/SystemZSelectionDAGInfo.cpp b/llvm/lib/Target/SystemZ/SystemZSelectionDAGInfo.cpp
index 6574825..e0d7bca 100644
--- a/llvm/lib/Target/SystemZ/SystemZSelectionDAGInfo.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZSelectionDAGInfo.cpp
@@ -145,7 +145,7 @@
 // deciding whether to use a loop or straight-line code.
 static SDValue emitCLC(SelectionDAG &DAG, const SDLoc &DL, SDValue Chain,
                        SDValue Src1, SDValue Src2, uint64_t Size) {
-  SDVTList VTs = DAG.getVTList(MVT::Other, MVT::Glue);
+  SDVTList VTs = DAG.getVTList(MVT::i32, MVT::Other);
   EVT PtrVT = Src1.getValueType();
   // A two-CLC sequence is a clear win over a loop, not least because it
   // needs only one branch.  A three-CLC sequence needs the same number
@@ -167,9 +167,9 @@
 // less than zero if CC == 1 and greater than zero if CC >= 2.
 // The sequence starts with IPM, which puts CC into bits 29 and 28
 // of an integer and clears bits 30 and 31.
-static SDValue addIPMSequence(const SDLoc &DL, SDValue Glue,
+static SDValue addIPMSequence(const SDLoc &DL, SDValue CCReg,
                               SelectionDAG &DAG) {
-  SDValue IPM = DAG.getNode(SystemZISD::IPM, DL, MVT::i32, Glue);
+  SDValue IPM = DAG.getNode(SystemZISD::IPM, DL, MVT::i32, CCReg);
   SDValue SRL = DAG.getNode(ISD::SRL, DL, MVT::i32, IPM,
                             DAG.getConstant(SystemZ::IPM_CC, DL, MVT::i32));
   SDValue ROTL = DAG.getNode(ISD::ROTL, DL, MVT::i32, SRL,
@@ -184,9 +184,9 @@
   if (auto *CSize = dyn_cast<ConstantSDNode>(Size)) {
     uint64_t Bytes = CSize->getZExtValue();
     assert(Bytes > 0 && "Caller should have handled 0-size case");
-    Chain = emitCLC(DAG, DL, Chain, Src1, Src2, Bytes);
-    SDValue Glue = Chain.getValue(1);
-    return std::make_pair(addIPMSequence(DL, Glue, DAG), Chain);
+    SDValue CCReg = emitCLC(DAG, DL, Chain, Src1, Src2, Bytes);
+    Chain = CCReg.getValue(1);
+    return std::make_pair(addIPMSequence(DL, CCReg, DAG), Chain);
   }
   return std::make_pair(SDValue(), SDValue());
 }
@@ -196,7 +196,7 @@
     SDValue Char, SDValue Length, MachinePointerInfo SrcPtrInfo) const {
   // Use SRST to find the character.  End is its address on success.
   EVT PtrVT = Src.getValueType();
-  SDVTList VTs = DAG.getVTList(PtrVT, MVT::Other, MVT::Glue);
+  SDVTList VTs = DAG.getVTList(PtrVT, MVT::i32, MVT::Other);
   Length = DAG.getZExtOrTrunc(Length, DL, PtrVT);
   Char = DAG.getZExtOrTrunc(Char, DL, MVT::i32);
   Char = DAG.getNode(ISD::AND, DL, MVT::i32, Char,
@@ -204,17 +204,16 @@
   SDValue Limit = DAG.getNode(ISD::ADD, DL, PtrVT, Src, Length);
   SDValue End = DAG.getNode(SystemZISD::SEARCH_STRING, DL, VTs, Chain,
                             Limit, Src, Char);
-  Chain = End.getValue(1);
-  SDValue Glue = End.getValue(2);
+  SDValue CCReg = End.getValue(1);
+  Chain = End.getValue(2);
 
   // Now select between End and null, depending on whether the character
   // was found.
   SDValue Ops[] = {End, DAG.getConstant(0, DL, PtrVT),
                    DAG.getConstant(SystemZ::CCMASK_SRST, DL, MVT::i32),
                    DAG.getConstant(SystemZ::CCMASK_SRST_FOUND, DL, MVT::i32),
-                   Glue};
-  VTs = DAG.getVTList(PtrVT, MVT::Glue);
-  End = DAG.getNode(SystemZISD::SELECT_CCMASK, DL, VTs, Ops);
+                   CCReg};
+  End = DAG.getNode(SystemZISD::SELECT_CCMASK, DL, PtrVT, Ops);
   return std::make_pair(End, Chain);
 }
 
@@ -232,12 +231,12 @@
     SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Src1,
     SDValue Src2, MachinePointerInfo Op1PtrInfo,
     MachinePointerInfo Op2PtrInfo) const {
-  SDVTList VTs = DAG.getVTList(Src1.getValueType(), MVT::Other, MVT::Glue);
+  SDVTList VTs = DAG.getVTList(Src1.getValueType(), MVT::i32, MVT::Other);
   SDValue Unused = DAG.getNode(SystemZISD::STRCMP, DL, VTs, Chain, Src1, Src2,
                                DAG.getConstant(0, DL, MVT::i32));
-  Chain = Unused.getValue(1);
-  SDValue Glue = Chain.getValue(2);
-  return std::make_pair(addIPMSequence(DL, Glue, DAG), Chain);
+  SDValue CCReg = Unused.getValue(1);
+  Chain = Unused.getValue(2);
+  return std::make_pair(addIPMSequence(DL, CCReg, DAG), Chain);
 }
 
 // Search from Src for a null character, stopping once Src reaches Limit.
@@ -250,10 +249,10 @@
                                                     SDValue Chain, SDValue Src,
                                                     SDValue Limit) {
   EVT PtrVT = Src.getValueType();
-  SDVTList VTs = DAG.getVTList(PtrVT, MVT::Other, MVT::Glue);
+  SDVTList VTs = DAG.getVTList(PtrVT, MVT::i32, MVT::Other);
   SDValue End = DAG.getNode(SystemZISD::SEARCH_STRING, DL, VTs, Chain,
                             Limit, Src, DAG.getConstant(0, DL, MVT::i32));
-  Chain = End.getValue(1);
+  Chain = End.getValue(2);
   SDValue Len = DAG.getNode(ISD::SUB, DL, PtrVT, End, Src);
   return std::make_pair(Len, Chain);
 }