- Rename TargetInstrDesc, TargetOperandInfo to MCInstrDesc and MCOperandInfo and

sink them into MC layer.
- Added MCInstrInfo, which captures the tablegen generated static data. Chang
TargetInstrInfo so it's based off MCInstrInfo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134021 91177308-0d34-0410-b5e6-96231b3b80d8

65 files changed, 727 insertions, 727 deletions

diff --git a/lib/CodeGen/BranchFolding.cpp b/lib/CodeGen/BranchFolding.cpp
index d95f77e90a..4df7b46929 100644
--- a/lib/CodeGen/BranchFolding.cpp
+++ b/lib/CodeGen/BranchFolding.cpp
@@ -421,10 +421,10 @@ static unsigned EstimateRuntime(MachineBasicBlock::iterator I,
   for (; I != E; ++I) {
     if (I->isDebugValue())
       continue;
-    const TargetInstrDesc &TID = I->getDesc();
-    if (TID.isCall())
+    const MCInstrDesc &MCID = I->getDesc();
+    if (MCID.isCall())
       Time += 10;
-    else if (TID.mayLoad() || TID.mayStore())
+    else if (MCID.mayLoad() || MCID.mayStore())
       Time += 2;
     else
       ++Time;
diff --git a/lib/CodeGen/ExpandISelPseudos.cpp b/lib/CodeGen/ExpandISelPseudos.cpp
index ebc2fc91ef..a67140ece4 100644
--- a/lib/CodeGen/ExpandISelPseudos.cpp
+++ b/lib/CodeGen/ExpandISelPseudos.cpp
@@ -62,8 +62,8 @@ bool ExpandISelPseudos::runOnMachineFunction(MachineFunction &MF) {
       MachineInstr *MI = MBBI++;
 
       // If MI is a pseudo, expand it.
-      const TargetInstrDesc &TID = MI->getDesc();
-      if (TID.usesCustomInsertionHook()) {
+      const MCInstrDesc &MCID = MI->getDesc();
+      if (MCID.usesCustomInsertionHook()) {
         Changed = true;
         MachineBasicBlock *NewMBB =
           TLI->EmitInstrWithCustomInserter(MI, MBB);
diff --git a/lib/CodeGen/IfConversion.cpp b/lib/CodeGen/IfConversion.cpp
index 8b2c981616..d8355ab86c 100644
--- a/lib/CodeGen/IfConversion.cpp
+++ b/lib/CodeGen/IfConversion.cpp
@@ -651,12 +651,12 @@ void IfConverter::ScanInstructions(BBInfo &BBI) {
     if (I->isDebugValue())
       continue;
 
-    const TargetInstrDesc &TID = I->getDesc();
-    if (TID.isNotDuplicable())
+    const MCInstrDesc &MCID = I->getDesc();
+    if (MCID.isNotDuplicable())
       BBI.CannotBeCopied = true;
 
     bool isPredicated = TII->isPredicated(I);
-    bool isCondBr = BBI.IsBrAnalyzable && TID.isConditionalBranch();
+    bool isCondBr = BBI.IsBrAnalyzable && MCID.isConditionalBranch();
 
     if (!isCondBr) {
       if (!isPredicated) {
@@ -1414,9 +1414,9 @@ void IfConverter::CopyAndPredicateBlock(BBInfo &ToBBI, BBInfo &FromBBI,
 
   for (MachineBasicBlock::iterator I = FromBBI.BB->begin(),
          E = FromBBI.BB->end(); I != E; ++I) {
-    const TargetInstrDesc &TID = I->getDesc();
+    const MCInstrDesc &MCID = I->getDesc();
     // Do not copy the end of the block branches.
-    if (IgnoreBr && TID.isBranch())
+    if (IgnoreBr && MCID.isBranch())
       break;
 
     MachineInstr *MI = MF.CloneMachineInstr(I);
diff --git a/lib/CodeGen/MachineBasicBlock.cpp b/lib/CodeGen/MachineBasicBlock.cpp
index c0f71d24a3..8f0fb46879 100644
--- a/lib/CodeGen/MachineBasicBlock.cpp
+++ b/lib/CodeGen/MachineBasicBlock.cpp
@@ -22,7 +22,6 @@
 #include "llvm/MC/MCContext.h"
 #include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/Target/TargetData.h"
-#include "llvm/Target/TargetInstrDesc.h"
 #include "llvm/Target/TargetInstrInfo.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Assembly/Writer.h"
diff --git a/lib/CodeGen/MachineCSE.cpp b/lib/CodeGen/MachineCSE.cpp
index f97ccf6579..3a60a37af4 100644
--- a/lib/CodeGen/MachineCSE.cpp
+++ b/lib/CodeGen/MachineCSE.cpp
@@ -260,12 +260,12 @@ bool MachineCSE::isCSECandidate(MachineInstr *MI) {
     return false;
 
   // Ignore stuff that we obviously can't move.
-  const TargetInstrDesc &TID = MI->getDesc();  
-  if (TID.mayStore() || TID.isCall() || TID.isTerminator() ||
+  const MCInstrDesc &MCID = MI->getDesc();  
+  if (MCID.mayStore() || MCID.isCall() || MCID.isTerminator() ||
       MI->hasUnmodeledSideEffects())
     return false;
 
-  if (TID.mayLoad()) {
+  if (MCID.mayLoad()) {
     // Okay, this instruction does a load. As a refinement, we allow the target
     // to decide whether the loaded value is actually a constant. If so, we can
     // actually use it as a load.
diff --git a/lib/CodeGen/MachineFunction.cpp b/lib/CodeGen/MachineFunction.cpp
index 50750a50ab..cd25156528 100644
--- a/lib/CodeGen/MachineFunction.cpp
+++ b/lib/CodeGen/MachineFunction.cpp
@@ -152,10 +152,10 @@ void MachineFunction::RenumberBlocks(MachineBasicBlock *MBB) {
 /// of `new MachineInstr'.
 ///
 MachineInstr *
-MachineFunction::CreateMachineInstr(const TargetInstrDesc &TID,
+MachineFunction::CreateMachineInstr(const MCInstrDesc &MCID,
                                     DebugLoc DL, bool NoImp) {
   return new (InstructionRecycler.Allocate<MachineInstr>(Allocator))
-    MachineInstr(TID, DL, NoImp);
+    MachineInstr(MCID, DL, NoImp);
 }
 
 /// CloneMachineInstr - Create a new MachineInstr which is a copy of the
diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp
index 938b83dd0e..0995106a96 100644
--- a/lib/CodeGen/MachineInstr.cpp
+++ b/lib/CodeGen/MachineInstr.cpp
@@ -24,10 +24,10 @@
 #include "llvm/CodeGen/MachineMemOperand.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/PseudoSourceValue.h"
+#include "llvm/MC/MCInstrDesc.h"
 #include "llvm/MC/MCSymbol.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetInstrInfo.h"
-#include "llvm/Target/TargetInstrDesc.h"
 #include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Analysis/DebugInfo.h"
@@ -457,9 +457,9 @@ raw_ostream &llvm::operator<<(raw_ostream &OS, const MachineMemOperand &MMO) {
 //===----------------------------------------------------------------------===//
 
 /// MachineInstr ctor - This constructor creates a dummy MachineInstr with
-/// TID NULL and no operands.
+/// MCID NULL and no operands.
 MachineInstr::MachineInstr()
-  : TID(0), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
+  : MCID(0), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
     MemRefs(0), MemRefsEnd(0),
     Parent(0) {
   // Make sure that we get added to a machine basicblock
@@ -467,23 +467,23 @@ MachineInstr::MachineInstr()
 }
 
 void MachineInstr::addImplicitDefUseOperands() {
-  if (TID->ImplicitDefs)
-    for (const unsigned *ImpDefs = TID->ImplicitDefs; *ImpDefs; ++ImpDefs)
+  if (MCID->ImplicitDefs)
+    for (const unsigned *ImpDefs = MCID->ImplicitDefs; *ImpDefs; ++ImpDefs)
       addOperand(MachineOperand::CreateReg(*ImpDefs, true, true));
-  if (TID->ImplicitUses)
-    for (const unsigned *ImpUses = TID->ImplicitUses; *ImpUses; ++ImpUses)
+  if (MCID->ImplicitUses)
+    for (const unsigned *ImpUses = MCID->ImplicitUses; *ImpUses; ++ImpUses)
       addOperand(MachineOperand::CreateReg(*ImpUses, false, true));
 }
 
 /// MachineInstr ctor - This constructor creates a MachineInstr and adds the
 /// implicit operands. It reserves space for the number of operands specified by
-/// the TargetInstrDesc.
-MachineInstr::MachineInstr(const TargetInstrDesc &tid, bool NoImp)
-  : TID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
+/// the MCInstrDesc.
+MachineInstr::MachineInstr(const MCInstrDesc &tid, bool NoImp)
+  : MCID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
     MemRefs(0), MemRefsEnd(0), Parent(0) {
   if (!NoImp)
-    NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses();
-  Operands.reserve(NumImplicitOps + TID->getNumOperands());
+    NumImplicitOps = MCID->getNumImplicitDefs() + MCID->getNumImplicitUses();
+  Operands.reserve(NumImplicitOps + MCID->getNumOperands());
   if (!NoImp)
     addImplicitDefUseOperands();
   // Make sure that we get added to a machine basicblock
@@ -491,13 +491,13 @@ MachineInstr::MachineInstr(const TargetInstrDesc &tid, bool NoImp)
 }
 
 /// MachineInstr ctor - As above, but with a DebugLoc.
-MachineInstr::MachineInstr(const TargetInstrDesc &tid, const DebugLoc dl,
+MachineInstr::MachineInstr(const MCInstrDesc &tid, const DebugLoc dl,
                            bool NoImp)
-  : TID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
+  : MCID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
     MemRefs(0), MemRefsEnd(0), Parent(0), debugLoc(dl) {
   if (!NoImp)
-    NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses();
-  Operands.reserve(NumImplicitOps + TID->getNumOperands());
+    NumImplicitOps = MCID->getNumImplicitDefs() + MCID->getNumImplicitUses();
+  Operands.reserve(NumImplicitOps + MCID->getNumOperands());
   if (!NoImp)
     addImplicitDefUseOperands();
   // Make sure that we get added to a machine basicblock
@@ -507,12 +507,12 @@ MachineInstr::MachineInstr(const TargetInstrDesc &tid, const DebugLoc dl,
 /// MachineInstr ctor - Work exactly the same as the ctor two above, except
 /// that the MachineInstr is created and added to the end of the specified 
 /// basic block.
-MachineInstr::MachineInstr(MachineBasicBlock *MBB, const TargetInstrDesc &tid)
-  : TID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
+MachineInstr::MachineInstr(MachineBasicBlock *MBB, const MCInstrDesc &tid)
+  : MCID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
     MemRefs(0), MemRefsEnd(0), Parent(0) {
   assert(MBB && "Cannot use inserting ctor with null basic block!");
-  NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses();
-  Operands.reserve(NumImplicitOps + TID->getNumOperands());
+  NumImplicitOps = MCID->getNumImplicitDefs() + MCID->getNumImplicitUses();
+  Operands.reserve(NumImplicitOps + MCID->getNumOperands());
   addImplicitDefUseOperands();
   // Make sure that we get added to a machine basicblock
   LeakDetector::addGarbageObject(this);
@@ -522,12 +522,12 @@ MachineInstr::MachineInstr(MachineBasicBlock *MBB, const TargetInstrDesc &tid)
 /// MachineInstr ctor - As above, but with a DebugLoc.
 ///
 MachineInstr::MachineInstr(MachineBasicBlock *MBB, const DebugLoc dl,
-                           const TargetInstrDesc &tid)
-  : TID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
+                           const MCInstrDesc &tid)
+  : MCID(&tid), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
     MemRefs(0), MemRefsEnd(0), Parent(0), debugLoc(dl) {
   assert(MBB && "Cannot use inserting ctor with null basic block!");
-  NumImplicitOps = TID->getNumImplicitDefs() + TID->getNumImplicitUses();
-  Operands.reserve(NumImplicitOps + TID->getNumOperands());
+  NumImplicitOps = MCID->getNumImplicitDefs() + MCID->getNumImplicitUses();
+  Operands.reserve(NumImplicitOps + MCID->getNumOperands());
   addImplicitDefUseOperands();
   // Make sure that we get added to a machine basicblock
   LeakDetector::addGarbageObject(this);
@@ -537,7 +537,7 @@ MachineInstr::MachineInstr(MachineBasicBlock *MBB, const DebugLoc dl,
 /// MachineInstr ctor - Copies MachineInstr arg exactly
 ///
 MachineInstr::MachineInstr(MachineFunction &MF, const MachineInstr &MI)
-  : TID(&MI.getDesc()), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
+  : MCID(&MI.getDesc()), NumImplicitOps(0), Flags(0), AsmPrinterFlags(0),
     MemRefs(MI.MemRefs), MemRefsEnd(MI.MemRefsEnd),
     Parent(0), debugLoc(MI.getDebugLoc()) {
   Operands.reserve(MI.getNumOperands());
@@ -624,7 +624,7 @@ void MachineInstr::addOperand(const MachineOperand &Op) {
         Operands.back().AddRegOperandToRegInfo(RegInfo);
         // If the register operand is flagged as early, mark the operand as such
         unsigned OpNo = Operands.size() - 1;
-        if (TID->getOperandConstraint(OpNo, TOI::EARLY_CLOBBER) != -1)
+        if (MCID->getOperandConstraint(OpNo, MCOI::EARLY_CLOBBER) != -1)
           Operands[OpNo].setIsEarlyClobber(true);
       }
       return;
@@ -646,7 +646,7 @@ void MachineInstr::addOperand(const MachineOperand &Op) {
     if (Operands[OpNo].isReg()) {
       Operands[OpNo].AddRegOperandToRegInfo(0);
       // If the register operand is flagged as early, mark the operand as such
-      if (TID->getOperandConstraint(OpNo, TOI::EARLY_CLOBBER) != -1)
+      if (MCID->getOperandConstraint(OpNo, MCOI::EARLY_CLOBBER) != -1)
         Operands[OpNo].setIsEarlyClobber(true);
     }
 
@@ -671,7 +671,7 @@ void MachineInstr::addOperand(const MachineOperand &Op) {
     if (Operands[OpNo].isReg()) {
       Operands[OpNo].AddRegOperandToRegInfo(RegInfo);
       // If the register operand is flagged as early, mark the operand as such
-      if (TID->getOperandConstraint(OpNo, TOI::EARLY_CLOBBER) != -1)
+      if (MCID->getOperandConstraint(OpNo, MCOI::EARLY_CLOBBER) != -1)
         Operands[OpNo].setIsEarlyClobber(true);
     }
     
@@ -694,7 +694,7 @@ void MachineInstr::addOperand(const MachineOperand &Op) {
 
       // If the register operand is flagged as early, mark the operand as such
     if (Operands[OpNo].isReg()
-        && TID->getOperandConstraint(OpNo, TOI::EARLY_CLOBBER) != -1)
+        && MCID->getOperandConstraint(OpNo, MCOI::EARLY_CLOBBER) != -1)
       Operands[OpNo].setIsEarlyClobber(true);
   }
 }
@@ -820,8 +820,8 @@ void MachineInstr::eraseFromParent() {
 /// OperandComplete - Return true if it's illegal to add a new operand
 ///
 bool MachineInstr::OperandsComplete() const {
-  unsigned short NumOperands = TID->getNumOperands();
-  if (!TID->isVariadic() && getNumOperands()-NumImplicitOps >= NumOperands)
+  unsigned short NumOperands = MCID->getNumOperands();
+  if (!MCID->isVariadic() && getNumOperands()-NumImplicitOps >= NumOperands)
     return true;  // Broken: we have all the operands of this instruction!
   return false;
 }
@@ -829,8 +829,8 @@ bool MachineInstr::OperandsComplete() const {
 /// getNumExplicitOperands - Returns the number of non-implicit operands.
 ///
 unsigned MachineInstr::getNumExplicitOperands() const {
-  unsigned NumOperands = TID->getNumOperands();
-  if (!TID->isVariadic())
+  unsigned NumOperands = MCID->getNumOperands();
+  if (!MCID->isVariadic())
     return NumOperands;
 
   for (unsigned i = NumOperands, e = getNumOperands(); i != e; ++i) {
@@ -931,10 +931,10 @@ MachineInstr::findRegisterDefOperandIdx(unsigned Reg, bool isDead, bool Overlap,
 /// operand list that is used to represent the predicate. It returns -1 if
 /// none is found.
 int MachineInstr::findFirstPredOperandIdx() const {
-  const TargetInstrDesc &TID = getDesc();
-  if (TID.isPredicable()) {
+  const MCInstrDesc &MCID = getDesc();
+  if (MCID.isPredicable()) {
     for (unsigned i = 0, e = getNumOperands(); i != e; ++i)
-      if (TID.OpInfo[i].isPredicate())
+      if (MCID.OpInfo[i].isPredicate())
         return i;
   }
 
@@ -990,11 +990,11 @@ isRegTiedToUseOperand(unsigned DefOpIdx, unsigned *UseOpIdx) const {
   }
 
   assert(getOperand(DefOpIdx).isDef() && "DefOpIdx is not a def!");
-  const TargetInstrDesc &TID = getDesc();
-  for (unsigned i = 0, e = TID.getNumOperands(); i != e; ++i) {
+  const MCInstrDesc &MCID = getDesc();
+  for (unsigned i = 0, e = MCID.getNumOperands(); i != e; ++i) {
     const MachineOperand &MO = getOperand(i);
     if (MO.isReg() && MO.isUse() &&
-        TID.getOperandConstraint(i, TOI::TIED_TO) == (int)DefOpIdx) {
+        MCID.getOperandConstraint(i, MCOI::TIED_TO) == (int)DefOpIdx) {
       if (UseOpIdx)
         *UseOpIdx = (unsigned)i;
       return true;
@@ -1050,13 +1050,13 @@ isRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx) const {
     return false;
   }
 
-  const TargetInstrDesc &TID = getDesc();
-  if (UseOpIdx >= TID.getNumOperands())
+  const MCInstrDesc &MCID = getDesc();
+  if (UseOpIdx >= MCID.getNumOperands())
     return false;
   const MachineOperand &MO = getOperand(UseOpIdx);
   if (!MO.isReg() || !MO.isUse())
     return false;
-  int DefIdx = TID.getOperandConstraint(UseOpIdx, TOI::TIED_TO);
+  int DefIdx = MCID.getOperandConstraint(UseOpIdx, MCOI::TIED_TO);
   if (DefIdx == -1)
     return false;
   if (DefOpIdx)
@@ -1096,11 +1096,11 @@ void MachineInstr::copyKillDeadInfo(const MachineInstr *MI) {
 
 /// copyPredicates - Copies predicate operand(s) from MI.
 void MachineInstr::copyPredicates(const MachineInstr *MI) {
-  const TargetInstrDesc &TID = MI->getDesc();
-  if (!TID.isPredicable())
+  const MCInstrDesc &MCID = MI->getDesc();
+  if (!MCID.isPredicable())
     return;
   for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
-    if (TID.OpInfo[i].isPredicate()) {
+    if (MCID.OpInfo[i].isPredicate()) {
       // Predicated operands must be last operands.
       addOperand(MI->getOperand(i));
     }
@@ -1137,13 +1137,13 @@ bool MachineInstr::isSafeToMove(const TargetInstrInfo *TII,
                                 AliasAnalysis *AA,
                                 bool &SawStore) const {
   // Ignore stuff that we obviously can't move.
-  if (TID->mayStore() || TID->isCall()) {
+  if (MCID->mayStore() || MCID->isCall()) {
     SawStore = true;
     return false;
   }
 
   if (isLabel() || isDebugValue() ||
-      TID->isTerminator() || hasUnmodeledSideEffects())
+      MCID->isTerminator() || hasUnmodeledSideEffects())
     return false;
 
   // See if this instruction does a load.  If so, we have to guarantee that the
@@ -1151,7 +1151,7 @@ bool MachineInstr::isSafeToMove(const TargetInstrInfo *TII,
   // destination. The check for isInvariantLoad gives the targe the chance to
   // classify the load as always returning a constant, e.g. a constant pool
   // load.
-  if (TID->mayLoad() && !isInvariantLoad(AA))
+  if (MCID->mayLoad() && !isInvariantLoad(AA))
     // Otherwise, this is a real load.  If there is a store between the load and
     // end of block, or if the load is volatile, we can't move it.
     return !SawStore && !hasVolatileMemoryRef();
@@ -1191,9 +1191,9 @@ bool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII,
 /// have no volatile memory references.
 bool MachineInstr::hasVolatileMemoryRef() const {
   // An instruction known never to access memory won't have a volatile access.
-  if (!TID->mayStore() &&
-      !TID->mayLoad() &&
-      !TID->isCall() &&
+  if (!MCID->mayStore() &&
+      !MCID->mayLoad() &&
+      !MCID->isCall() &&
       !hasUnmodeledSideEffects())
     return false;
 
@@ -1217,7 +1217,7 @@ bool MachineInstr::hasVolatileMemoryRef() const {
 /// *all* loads the instruction does are invariant (if it does multiple loads).
 bool MachineInstr::isInvariantLoad(AliasAnalysis *AA) const {
   // If the instruction doesn't load at all, it isn't an invariant load.
-  if (!TID->mayLoad())
+  if (!MCID->mayLoad())
     return false;
 
   // If the instruction has lost its memoperands, conservatively assume that
@@ -1421,10 +1421,10 @@ void MachineInstr::print(raw_ostream &OS, const TargetMachine *TM) const {
     if (FirstOp) FirstOp = false; else OS << ",";
     OS << " ";
     if (i < getDesc().NumOperands) {
-      const TargetOperandInfo &TOI = getDesc().OpInfo[i];
-      if (TOI.isPredicate())
+      const MCOperandInfo &MCOI = getDesc().OpInfo[i];
+      if (MCOI.isPredicate())
         OS << "pred:";
-      if (TOI.isOptionalDef())
+      if (MCOI.isOptionalDef())
         OS << "opt:";
     }
     if (isDebugValue() && MO.isMetadata()) {
diff --git a/lib/CodeGen/MachineLICM.cpp b/lib/CodeGen/MachineLICM.cpp
index cfd0325ee9..28a81e1881 100644
--- a/lib/CodeGen/MachineLICM.cpp
+++ b/lib/CodeGen/MachineLICM.cpp
@@ -1018,9 +1018,9 @@ MachineInstr *MachineLICM::ExtractHoistableLoad(MachineInstr *MI) {
                                     /*UnfoldStore=*/false,
                                     &LoadRegIndex);
   if (NewOpc == 0) return 0;
-  const TargetInstrDesc &TID = TII->get(NewOpc);
-  if (TID.getNumDefs() != 1) return 0;
-  const TargetRegisterClass *RC = TII->getRegClass(TID, LoadRegIndex, TRI);
+  const MCInstrDesc &MID = TII->get(NewOpc);
+  if (MID.getNumDefs() != 1) return 0;
+  const TargetRegisterClass *RC = TII->getRegClass(MID, LoadRegIndex, TRI);
   // Ok, we're unfolding. Create a temporary register and do the unfold.
   unsigned Reg = MRI->createVirtualRegister(RC);
 
diff --git a/lib/CodeGen/MachineVerifier.cpp b/lib/CodeGen/MachineVerifier.cpp
index d3f8b02f11..7a55852a13 100644
--- a/lib/CodeGen/MachineVerifier.cpp
+++ b/lib/CodeGen/MachineVerifier.cpp
@@ -541,19 +541,19 @@ MachineVerifier::visitMachineBasicBlockBefore(const MachineBasicBlock *MBB) {
 }
 
 void MachineVerifier::visitMachineInstrBefore(const MachineInstr *MI) {
-  const TargetInstrDesc &TI = MI->getDesc();
-  if (MI->getNumOperands() < TI.getNumOperands()) {
+  const MCInstrDesc &MCID = MI->getDesc();
+  if (MI->getNumOperands() < MCID.getNumOperands()) {
     report("Too few operands", MI);
-    *OS << TI.getNumOperands() << " operands expected, but "
+    *OS << MCID.getNumOperands() << " operands expected, but "
         << MI->getNumExplicitOperands() << " given.\n";
   }
 
   // Check the MachineMemOperands for basic consistency.
   for (MachineInstr::mmo_iterator I = MI->memoperands_begin(),
        E = MI->memoperands_end(); I != E; ++I) {
-    if ((*I)->isLoad() && !TI.mayLoad())
+    if ((*I)->isLoad() && !MCID.mayLoad())
       report("Missing mayLoad flag", MI);
-    if ((*I)->isStore() && !TI.mayStore())
+    if ((*I)->isStore() && !MCID.mayStore())
       report("Missing mayStore flag", MI);
   }
 
@@ -575,29 +575,30 @@ void MachineVerifier::visitMachineInstrBefore(const MachineInstr *MI) {
 void
 MachineVerifier::visitMachineOperand(const MachineOperand *MO, unsigned MONum) {
   const MachineInstr *MI = MO->getParent();
-  const TargetInstrDesc &TI = MI->getDesc();
-  const TargetOperandInfo &TOI = TI.OpInfo[MONum];
+  const MCInstrDesc &MCID = MI->getDesc();
+  const MCOperandInfo &MCOI = MCID.OpInfo[MONum];
 
-  // The first TI.NumDefs operands must be explicit register defines
-  if (MONum < TI.getNumDefs()) {
+  // The first MCID.NumDefs operands must be explicit register defines
+  if (MONum < MCID.getNumDefs()) {
     if (!MO->isReg())
       report("Explicit definition must be a register", MO, MONum);
     else if (!MO->isDef())
       report("Explicit definition marked as use", MO, MONum);
     else if (MO->isImplicit())
       report("Explicit definition marked as implicit", MO, MONum);
-  } else if (MONum < TI.getNumOperands()) {
+  } else if (MONum < MCID.getNumOperands()) {
     // Don't check if it's the last operand in a variadic instruction. See,
     // e.g., LDM_RET in the arm back end.
-    if (MO->isReg() && !(TI.isVariadic() && MONum == TI.getNumOperands()-1)) {
-      if (MO->isDef() && !TOI.isOptionalDef())
+    if (MO->isReg() &&
+        !(MCID.isVariadic() && MONum == MCID.getNumOperands()-1)) {
+      if (MO->isDef() && !MCOI.isOptionalDef())
           report("Explicit operand marked as def", MO, MONum);
       if (MO->isImplicit())
         report("Explicit operand marked as implicit", MO, MONum);
     }
   } else {
     // ARM adds %reg0 operands to indicate predicates. We'll allow that.
-    if (MO->isReg() && !MO->isImplicit() && !TI.isVariadic() && MO->getReg())
+    if (MO->isReg() && !MO->isImplicit() && !MCID.isVariadic() && MO->getReg())
       report("Extra explicit operand on non-variadic instruction", MO, MONum);
   }
 
@@ -709,7 +710,7 @@ MachineVerifier::visitMachineOperand(const MachineOperand *MO, unsigned MONum) {
     }
 
     // Check register classes.
-    if (MONum < TI.getNumOperands() && !MO->isImplicit()) {
+    if (MONum < MCID.getNumOperands() && !MO->isImplicit()) {
       unsigned SubIdx = MO->getSubReg();
 
       if (TargetRegisterInfo::isPhysicalRegister(Reg)) {
@@ -723,7 +724,7 @@ MachineVerifier::visitMachineOperand(const MachineOperand *MO, unsigned MONum) {
           }
           sr = s;
         }
-        if (const TargetRegisterClass *DRC = TII->getRegClass(TI, MONum, TRI)) {
+        if (const TargetRegisterClass *DRC = TII->getRegClass(MCID,MONum,TRI)) {
           if (!DRC->contains(sr)) {
             report("Illegal physical register for instruction", MO, MONum);
             *OS << TRI->getName(sr) << " is not a "
@@ -743,7 +744,7 @@ MachineVerifier::visitMachineOperand(const MachineOperand *MO, unsigned MONum) {
           }
           RC = SRC;
         }
-        if (const TargetRegisterClass *DRC = TII->getRegClass(TI, MONum, TRI)) {
+        if (const TargetRegisterClass *DRC = TII->getRegClass(MCID,MONum,TRI)) {
           if (!RC->hasSuperClassEq(DRC)) {
             report("Illegal virtual register for instruction", MO, MONum);
             *OS << "Expected a " << DRC->getName() << " register, but got a "
@@ -765,11 +766,11 @@ MachineVerifier::visitMachineOperand(const MachineOperand *MO, unsigned MONum) {
         LiveInts && !LiveInts->isNotInMIMap(MI)) {
       LiveInterval &LI = LiveStks->getInterval(MO->getIndex());
       SlotIndex Idx = LiveInts->getInstructionIndex(MI);
-      if (TI.mayLoad() && !LI.liveAt(Idx.getUseIndex())) {
+      if (MCID.mayLoad() && !LI.liveAt(Idx.getUseIndex())) {
         report("Instruction loads from dead spill slot", MO, MONum);
         *OS << "Live stack: " << LI << '\n';
       }
-      if (TI.mayStore() && !LI.liveAt(Idx.getDefIndex())) {
+      if (MCID.mayStore() && !LI.liveAt(Idx.getDefIndex())) {
         report("Instruction stores to dead spill slot", MO, MONum);
         *OS << "Live stack: " << LI << '\n';
       }
diff --git a/lib/CodeGen/PeepholeOptimizer.cpp b/lib/CodeGen/PeepholeOptimizer.cpp
index c105bb06eb..c523e39bc2 100644
--- a/lib/CodeGen/PeepholeOptimizer.cpp
+++ b/lib/CodeGen/PeepholeOptimizer.cpp
@@ -353,10 +353,10 @@ bool PeepholeOptimizer::OptimizeCmpInstr(MachineInstr *MI,
 bool PeepholeOptimizer::isMoveImmediate(MachineInstr *MI,
                                         SmallSet<unsigned, 4> &ImmDefRegs,
                                  DenseMap<unsigned, MachineInstr*> &ImmDefMIs) {
-  const TargetInstrDesc &TID = MI->getDesc();
-  if (!TID.isMoveImmediate())
+  const MCInstrDesc &MCID = MI->getDesc();
+  if (!MCID.isMoveImmediate())
     return false;
-  if (TID.getNumDefs() != 1)
+  if (MCID.getNumDefs() != 1)
     return false;
   unsigned Reg = MI->getOperand(0).getReg();
   if (TargetRegisterInfo::isVirtualRegister(Reg)) {
@@ -429,16 +429,16 @@ bool PeepholeOptimizer::runOnMachineFunction(MachineFunction &MF) {
         continue;
       }
 
-      const TargetInstrDesc &TID = MI->getDesc();
+      const MCInstrDesc &MCID = MI->getDesc();
 
-      if (TID.isBitcast()) {
+      if (MCID.isBitcast()) {
         if (OptimizeBitcastInstr(MI, MBB)) {
           // MI is deleted.
           Changed = true;
           MII = First ? I->begin() : llvm::next(PMII);
           continue;
         }        
-      } else if (TID.isCompare()) {
+      } else if (MCID.isCompare()) {
         if (OptimizeCmpInstr(MI, MBB)) {
           // MI is deleted.
           Changed = true;
diff --git a/lib/CodeGen/RegAllocFast.cpp b/lib/CodeGen/RegAllocFast.cpp
index 15b011162f..ee23194c05 100644
--- a/lib/CodeGen/RegAllocFast.cpp
+++ b/lib/CodeGen/RegAllocFast.cpp
@@ -118,7 +118,7 @@ namespace {
     // SkippedInstrs - Descriptors of instructions whose clobber list was
     // ignored because all registers were spilled. It is still necessary to
     // mark all the clobbered registers as used by the function.
-    SmallPtrSet<const TargetInstrDesc*, 4> SkippedInstrs;
+    SmallPtrSet<const MCInstrDesc*, 4> SkippedInstrs;
 
     // isBulkSpilling - This flag is set when LiveRegMap will be cleared
     // completely after spilling all live registers. LiveRegMap entries should
@@ -777,7 +777,7 @@ void RAFast::AllocateBasicBlock() {
   // Otherwise, sequentially allocate each instruction in the MBB.
   while (MII != MBB->end()) {
     MachineInstr *MI = MII++;
-    const TargetInstrDesc &TID = MI->getDesc();
+    const MCInstrDesc &MCID = MI->getDesc();
     DEBUG({
         dbgs() << "\n>> " << *MI << "Regs:";
         for (unsigned Reg = 1, E = TRI->getNumRegs(); Reg != E; ++Reg) {
@@ -890,7 +890,7 @@ void RAFast::AllocateBasicBlock() {
         VirtOpEnd = i+1;
         if (MO.isUse()) {
           hasTiedOps = hasTiedOps ||
-                                TID.getOperandConstraint(i, TOI::TIED_TO) != -1;
+                              MCID.getOperandConstraint(i, MCOI::TIED_TO) != -1;
         } else {
           if (MO.isEarlyClobber())
             hasEarlyClobbers = true;
@@ -920,7 +920,7 @@ void RAFast::AllocateBasicBlock() {
     // We didn't detect inline asm tied operands above, so just make this extra
     // pass for all inline asm.
     if (MI->isInlineAsm() || hasEarlyClobbers || hasPartialRedefs ||
-        (hasTiedOps && (hasPhysDefs || TID.getNumDefs() > 1))) {
+        (hasTiedOps && (hasPhysDefs || MCID.getNumDefs() > 1))) {
       handleThroughOperands(MI, VirtDead);
       // Don't attempt coalescing when we have funny stuff going on.
       CopyDst = 0;
@@ -965,7 +965,7 @@ void RAFast::AllocateBasicBlock() {
     }
 
     unsigned DefOpEnd = MI->getNumOperands();
-    if (TID.isCall()) {
+    if (MCID.isCall()) {
       // Spill all virtregs before a call. This serves two purposes: 1. If an
       // exception is thrown, the landing pad is going to expect to find
       // registers in their spill slots, and 2. we don't have to wade through
@@ -976,7 +976,7 @@ void RAFast::AllocateBasicBlock() {
 
       // The imp-defs are skipped below, but we still need to mark those
       // registers as used by the function.
-      SkippedInstrs.insert(&TID);
+      SkippedInstrs.insert(&MCID);
     }
 
     // Third scan.
@@ -1062,7 +1062,7 @@ bool RAFast::runOnMachineFunction(MachineFunction &Fn) {
   MRI->closePhysRegsUsed(*TRI);
 
   // Add the clobber lists for all the instructions we skipped earlier.
-  for (SmallPtrSet<const TargetInstrDesc*, 4>::const_iterator
+  for (SmallPtrSet<const MCInstrDesc*, 4>::const_iterator
        I = SkippedInstrs.begin(), E = SkippedInstrs.end(); I != E; ++I)
     if (const unsigned *Defs = (*I)->getImplicitDefs())
       while (*Defs)
diff --git a/lib/CodeGen/RegisterCoalescer.cpp b/lib/CodeGen/RegisterCoalescer.cpp
index d59843f096..8826df4218 100644
--- a/lib/CodeGen/RegisterCoalescer.cpp
+++ b/lib/CodeGen/RegisterCoalescer.cpp
@@ -526,8 +526,8 @@ bool RegisterCoalescer::RemoveCopyByCommutingDef(const CoalescerPair &CP,
   MachineInstr *DefMI = li_->getInstructionFromIndex(AValNo->def);
   if (!DefMI)
     return false;
-  const TargetInstrDesc &TID = DefMI->getDesc();
-  if (!TID.isCommutable())
+  const MCInstrDesc &MCID = DefMI->getDesc();
+  if (!MCID.isCommutable())
     return false;
   // If DefMI is a two-address instruction then commuting it will change the
   // destination register.
@@ -687,21 +687,21 @@ bool RegisterCoalescer::ReMaterializeTrivialDef(LiveInterval &SrcInt,
   if (!DefMI)
     return false;
   assert(DefMI && "Defining instruction disappeared");
-  const TargetInstrDesc &TID = DefMI->getDesc();
-  if (!TID.isAsCheapAsAMove())
+  const MCInstrDesc &MCID = DefMI->getDesc();
+  if (!MCID.isAsCheapAsAMove())
     return false;
   if (!tii_->isTriviallyReMaterializable(DefMI, AA))
     return false;
   bool SawStore = false;
   if (!DefMI->isSafeToMove(tii_, AA, SawStore))
     return false;
-  if (TID.getNumDefs() != 1)
+  if (MCID.getNumDefs() != 1)
     return false;
   if (!DefMI->isImplicitDef()) {
     // Make sure the copy destination register class fits the instruction
     // definition register class. The mismatch can happen as a result of earlier
     // extract_subreg, insert_subreg, subreg_to_reg coalescing.
-    const TargetRegisterClass *RC = tii_->getRegClass(TID, 0, tri_);
+    const TargetRegisterClass *RC = tii_->getRegClass(MCID, 0, tri_);
     if (TargetRegisterInfo::isVirtualRegister(DstReg)) {
       if (mri_->getRegClass(DstReg) != RC)
         return false;
@@ -712,13 +712,13 @@ bool RegisterCoalescer::ReMaterializeTrivialDef(LiveInterval &SrcInt,
   // If destination register has a sub-register index on it, make sure it
   // matches the instruction register class.
   if (DstSubIdx) {
-    const TargetInstrDesc &TID = DefMI->getDesc();
-    if (TID.getNumDefs() != 1)
+    const MCInstrDesc &MCID = DefMI->getDesc();
+    if (MCID.getNumDefs() != 1)
       return false;
     const TargetRegisterClass *DstRC = mri_->getRegClass(DstReg);
     const TargetRegisterClass *DstSubRC =
       DstRC->getSubRegisterRegClass(DstSubIdx);
-    const TargetRegisterClass *DefRC = tii_->getRegClass(TID, 0, tri_);
+    const TargetRegisterClass *DefRC = tii_->getRegClass(MCID, 0, tri_);
     if (DefRC == DstRC)
       DstSubIdx = 0;
     else if (DefRC != DstSubRC)
diff --git a/lib/CodeGen/ScheduleDAG.cpp b/lib/CodeGen/ScheduleDAG.cpp
index f328493936..21375b286c 100644
--- a/lib/CodeGen/ScheduleDAG.cpp
+++ b/lib/CodeGen/ScheduleDAG.cpp
@@ -45,7 +45,7 @@ ScheduleDAG::ScheduleDAG(MachineFunction &mf)
 ScheduleDAG::~ScheduleDAG() {}
 
 /// getInstrDesc helper to handle SDNodes.
-const TargetInstrDesc *ScheduleDAG::getNodeDesc(const SDNode *Node) const {
+const MCInstrDesc *ScheduleDAG::getNodeDesc(const SDNode *Node) const {
   if (!Node || !Node->isMachineOpcode()) return NULL;
   return &TII->get(Node->getMachineOpcode());
 }
diff --git a/lib/CodeGen/ScheduleDAGInstrs.cpp b/lib/CodeGen/ScheduleDAGInstrs.cpp
index 2363df429e..94941ecf23 100644
--- a/lib/CodeGen/ScheduleDAGInstrs.cpp
+++ b/lib/CodeGen/ScheduleDAGInstrs.cpp
@@ -236,13 +236,13 @@ void ScheduleDAGInstrs::BuildSchedGraph(AliasAnalysis *AA) {
       continue;
     }
 
-    const TargetInstrDesc &TID = MI->getDesc();
-    assert(!TID.isTerminator() && !MI->isLabel() &&
+    const MCInstrDesc &MCID = MI->getDesc();
+    assert(!MCID.isTerminator() && !MI->isLabel() &&
            "Cannot schedule terminators or labels!");
     // Create the SUnit for this MI.
     SUnit *SU = NewSUnit(MI);
-    SU->isCall = TID.isCall();
-    SU->isCommutable = TID.isCommutable();
+    SU->isCall = MCID.isCall();
+    SU->isCommutable = MCID.isCommutable();
 
     // Assign the Latency field of SU using target-provided information.
     if (UnitLatencies)
@@ -309,13 +309,13 @@ void ScheduleDAGInstrs::BuildSchedGraph(AliasAnalysis *AA) {
           if (SpecialAddressLatency != 0 && !UnitLatencies &&
               UseSU != &ExitSU) {
             MachineInstr *UseMI = UseSU->getInstr();
-            const TargetInstrDesc &UseTID = UseMI->getDesc();
+            const MCInstrDesc &UseMCID = UseMI->getDesc();
             int RegUseIndex = UseMI->findRegisterUseOperandIdx(Reg);
             assert(RegUseIndex >= 0 && "UseMI doesn's use register!");
             if (RegUseIndex >= 0 &&
-                (UseTID.mayLoad() || UseTID.mayStore()) &&
-                (unsigned)RegUseIndex < UseTID.getNumOperands() &&
-                UseTID.OpInfo[RegUseIndex].isLookupPtrRegClass())
+                (UseMCID.mayLoad() || UseMCID.mayStore()) &&
+                (unsigned)RegUseIndex < UseMCID.getNumOperands() &&
+                UseMCID.OpInfo[RegUseIndex].isLookupPtrRegClass())
               LDataLatency += SpecialAddressLatency;
           }
           // Adjust the dependence latency using operand def/use
@@ -352,17 +352,17 @@ void ScheduleDAGInstrs::BuildSchedGraph(AliasAnalysis *AA) {
             unsigned Count = I->second.second;
             const MachineInstr *UseMI = UseMO->getParent();
             unsigned UseMOIdx = UseMO - &UseMI->getOperand(0);
-            const TargetInstrDesc &UseTID = UseMI->getDesc();
+            const MCInstrDesc &UseMCID = UseMI->getDesc();
             // TODO: If we knew the total depth of the region here, we could
             // handle the case where the whole loop is inside the region but
             // is large enough that the isScheduleHigh trick isn't needed.
-            if (UseMOIdx < UseTID.getNumOperands()) {
+            if (UseMOIdx < UseMCID.getNumOperands()) {
               // Currently, we only support scheduling regions consisting of
               // single basic blocks. Check to see if the instruction is in
               // the same region by checking to see if it has the same parent.
               if (UseMI->getParent() != MI->getParent()) {
                 unsigned Latency = SU->Latency;
-                if (UseTID.OpInfo[UseMOIdx].isLookupPtrRegClass())
+                if (UseMCID.OpInfo[UseMOIdx].isLookupPtrRegClass())
                   Latency += SpecialAddressLatency;
                 // This is a wild guess as to the portion of the latency which
                 // will be overlapped by work done outside the current
@@ -374,7 +374,7 @@ void ScheduleDAGInstrs::BuildSchedGraph(AliasAnalysis *AA) {
                                     /*isMustAlias=*/false,
                                     /*isArtificial=*/true));
               } else if (SpecialAddressLatency > 0 &&
-                         UseTID.OpInfo[UseMOIdx].isLookupPtrRegClass()) {
+                         UseMCID.OpInfo[UseMOIdx].isLookupPtrRegClass()) {
                 // The entire loop body is within the current scheduling region
                 // and the latency of this operation is assumed to be greater
                 // than the latency of the loop.
@@ -417,9 +417,9 @@ void ScheduleDAGInstrs::BuildSchedGraph(AliasAnalysis *AA) {
     // produce more precise dependence information.
 #define STORE_LOAD_LATENCY 1
     unsigned TrueMemOrderLatency = 0;
-    if (TID.isCall() || MI->hasUnmodeledSideEffects() ||
+    if (MCID.isCall() || MI->hasUnmodeledSideEffects() ||
         (MI->hasVolatileMemoryRef() &&
-         (!TID.mayLoad() || !MI->isInvariantLoad(AA)))) {
+         (!MCID.mayLoad() || !MI->isInvariantLoad(AA)))) {
       // Be conservative with these and add dependencies on all memory
       // references, even those that are known to not alias.
       for (std::map<const Value *, SUnit *>::iterator I =
@@ -458,7 +458,7 @@ void ScheduleDAGInstrs::BuildSchedGraph(AliasAnalysis *AA) {
       PendingLoads.clear();
       AliasMemDefs.clear();
       AliasMemUses.clear();
-    } else if (TID.mayStore()) {
+    } else if (MCID.mayStore()) {
       bool MayAlias = true;
       TrueMemOrderLatency = STORE_LOAD_LATENCY;
       if (const Value *V = getUnderlyingObjectForInstr(MI, MFI, MayAlias)) {
@@ -514,7 +514,7 @@ void ScheduleDAGInstrs::BuildSchedGraph(AliasAnalysis *AA) {
                             /*Reg=*/0, /*isNormalMemory=*/false,
                             /*isMustAlias=*/false,
                             /*isArtificial=*/true));
-    } else if (TID.mayLoad()) {
+    } else if (MCID.mayLoad()) {
       bool MayAlias = true;
       TrueMemOrderLatency = 0;
       if (MI->isInvariantLoad(AA)) {
diff --git a/lib/CodeGen/ScoreboardHazardRecognizer.cpp b/lib/CodeGen/ScoreboardHazardRecognizer.cpp
index e6d7ded8a7..35e48cd8a1 100644
--- a/lib/CodeGen/ScoreboardHazardRecognizer.cpp
+++ b/lib/CodeGen/ScoreboardHazardRecognizer.cpp
@@ -115,12 +115,12 @@ ScoreboardHazardRecognizer::getHazardType(SUnit *SU, int Stalls) {
   // Use the itinerary for the underlying instruction to check for
   // free FU's in the scoreboard at the appropriate future cycles.
 
-  const TargetInstrDesc *TID = DAG->getInstrDesc(SU);
-  if (TID == NULL) {
+  const MCInstrDesc *MCID = DAG->getInstrDesc(SU);
+  if (MCID == NULL) {
     // Don't check hazards for non-machineinstr Nodes.
     return NoHazard;
   }
-  unsigned idx = TID->getSchedClass();
+  unsigned idx = MCID->getSchedClass();
   for (const InstrStage *IS = ItinData->beginStage(idx),
          *E = ItinData->endStage(idx); IS != E; ++IS) {
     // We must find one of the stage's units free for every cycle the
@@ -173,16 +173,16 @@ void ScoreboardHazardRecognizer::EmitInstruction(SUnit *SU) {
 
   // Use the itinerary for the underlying instruction to reserve FU's
   // in the scoreboard at the appropriate future cycles.
-  const TargetInstrDesc *TID = DAG->getInstrDesc(SU);
-  assert(TID && "The scheduler must filter non-machineinstrs");
-  if (DAG->TII->isZeroCost(TID->Opcode))
+  const MCInstrDesc *MCID = DAG->getInstrDesc(SU);
+  assert(MCID && "The scheduler must filter non-machineinstrs");
+  if (DAG->TII->isZeroCost(MCID->Opcode))
     return;
 
   ++IssueCount;
 
   unsigned cycle = 0;
 
-  unsigned idx = TID->getSchedClass();
+  unsigned idx = MCID->getSchedClass();
   for (const InstrStage *IS = ItinData->beginStage(idx),
          *E = ItinData->endStage(idx); IS != E; ++IS) {
     // We must reserve one of the stage's units for every cycle the
diff --git a/lib/CodeGen/SelectionDAG/FastISel.cpp b/lib/CodeGen/SelectionDAG/FastISel.cpp
index a7d629e6dc..580239af99 100644
--- a/lib/CodeGen/SelectionDAG/FastISel.cpp
+++ b/lib/CodeGen/SelectionDAG/FastISel.cpp
@@ -569,7 +569,7 @@ bool FastISel::SelectCall(const User *I) {
   case Intrinsic::dbg_value: {
     // This form of DBG_VALUE is target-independent.
     const DbgValueInst *DI = cast<DbgValueInst>(Call);
-    const TargetInstrDesc &II = TII.get(TargetOpcode::DBG_VALUE);
+    const MCInstrDesc &II = TII.get(TargetOpcode::DBG_VALUE);
     const Value *V = DI->getValue();
     if (!V) {
       // Currently the optimizer can produce this; insert an undef to
@@ -1112,7 +1112,7 @@ unsigned FastISel::createResultReg(const TargetRegisterClass* RC) {
 unsigned FastISel::FastEmitInst_(unsigned MachineInstOpcode,
                                  const TargetRegisterClass* RC) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg);
   return ResultReg;
@@ -1122,7 +1122,7 @@ unsigned FastISel::FastEmitInst_r(unsigned MachineInstOpcode,
                                   const TargetRegisterClass *RC,
                                   unsigned Op0, bool Op0IsKill) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   if (II.getNumDefs() >= 1)
     BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg)
@@ -1142,7 +1142,7 @@ unsigned FastISel::FastEmitInst_rr(unsigned MachineInstOpcode,
                                    unsigned Op0, bool Op0IsKill,
                                    unsigned Op1, bool Op1IsKill) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   if (II.getNumDefs() >= 1)
     BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg)
@@ -1164,7 +1164,7 @@ unsigned FastISel::FastEmitInst_rrr(unsigned MachineInstOpcode,
                                    unsigned Op1, bool Op1IsKill,
                                    unsigned Op2, bool Op2IsKill) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   if (II.getNumDefs() >= 1)
     BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg)
@@ -1187,7 +1187,7 @@ unsigned FastISel::FastEmitInst_ri(unsigned MachineInstOpcode,
                                    unsigned Op0, bool Op0IsKill,
                                    uint64_t Imm) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   if (II.getNumDefs() >= 1)
     BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg)
@@ -1208,7 +1208,7 @@ unsigned FastISel::FastEmitInst_rii(unsigned MachineInstOpcode,
                                    unsigned Op0, bool Op0IsKill,
                                    uint64_t Imm1, uint64_t Imm2) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   if (II.getNumDefs() >= 1)
     BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg)
@@ -1231,7 +1231,7 @@ unsigned FastISel::FastEmitInst_rf(unsigned MachineInstOpcode,
                                    unsigned Op0, bool Op0IsKill,
                                    const ConstantFP *FPImm) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   if (II.getNumDefs() >= 1)
     BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg)
@@ -1253,7 +1253,7 @@ unsigned FastISel::FastEmitInst_rri(unsigned MachineInstOpcode,
                                     unsigned Op1, bool Op1IsKill,
                                     uint64_t Imm) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   if (II.getNumDefs() >= 1)
     BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg)
@@ -1275,7 +1275,7 @@ unsigned FastISel::FastEmitInst_i(unsigned MachineInstOpcode,
                                   const TargetRegisterClass *RC,
                                   uint64_t Imm) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   if (II.getNumDefs() >= 1)
     BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg).addImm(Imm);
@@ -1291,7 +1291,7 @@ unsigned FastISel::FastEmitInst_ii(unsigned MachineInstOpcode,
                                   const TargetRegisterClass *RC,
                                   uint64_t Imm1, uint64_t Imm2) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   if (II.getNumDefs() >= 1)
     BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg)
diff --git a/lib/CodeGen/SelectionDAG/InstrEmitter.cpp b/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
index 1759255232..f0f4743298 100644
--- a/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
+++ b/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
@@ -106,7 +106,7 @@ EmitCopyFromReg(SDNode *Node, unsigned ResNo, bool IsClone, bool IsCloned,
             continue;
           Match = false;
           if (User->isMachineOpcode()) {
-            const TargetInstrDesc &II = TII->get(User->getMachineOpcode());
+            const MCInstrDesc &II = TII->get(User->getMachineOpcode());
             const TargetRegisterClass *RC = 0;
             if (i+II.getNumDefs() < II.getNumOperands())
               RC = TII->getRegClass(II, i+II.getNumDefs(), TRI);
@@ -178,7 +178,7 @@ unsigned InstrEmitter::getDstOfOnlyCopyToRegUse(SDNode *Node,
 }
 
 void InstrEmitter::CreateVirtualRegisters(SDNode *Node, MachineInstr *MI,
-                                       const TargetInstrDesc &II,
+                                       const MCInstrDesc &II,
                                        bool IsClone, bool IsCloned,
                                        DenseMap<SDValue, unsigned> &VRBaseMap) {
   assert(Node->getMachineOpcode() != TargetOpcode::IMPLICIT_DEF &&
@@ -242,7 +242,7 @@ unsigned InstrEmitter::getVR(SDValue Op,
       Op.getMachineOpcode() == TargetOpcode::IMPLICIT_DEF) {
     // Add an IMPLICIT_DEF instruction before every use.
     unsigned VReg = getDstOfOnlyCopyToRegUse(Op.getNode(), Op.getResNo());
-    // IMPLICIT_DEF can produce any type of result so its TargetInstrDesc
+    // IMPLICIT_DEF can produce any type of result so its MCInstrDesc
     // does not include operand register class info.
     if (!VReg) {
       const TargetRegisterClass *RC = TLI->getRegClassFor(Op.getValueType());
@@ -265,7 +265,7 @@ unsigned InstrEmitter::getVR(SDValue Op,
 void
 InstrEmitter::AddRegisterOperand(MachineInstr *MI, SDValue Op,
                                  unsigned IIOpNum,
-                                 const TargetInstrDesc *II,
+                                 const MCInstrDesc *II,
                                  DenseMap<SDValue, unsigned> &VRBaseMap,
                                  bool IsDebug, bool IsClone, bool IsCloned) {
   assert(Op.getValueType() != MVT::Other &&
@@ -275,9 +275,9 @@ InstrEmitter::AddRegisterOperand(MachineInstr *MI, SDValue Op,
   unsigned VReg = getVR(Op, VRBaseMap);
   assert(TargetRegisterInfo::isVirtualRegister(VReg) && "Not a vreg?");
 
-  const TargetInstrDesc &TID = MI->getDesc();
-  bool isOptDef = IIOpNum < TID.getNumOperands() &&
-    TID.OpInfo[IIOpNum].isOptionalDef();
+  const MCInstrDesc &MCID = MI->getDesc();
+  bool isOptDef = IIOpNum < MCID.getNumOperands() &&
+    MCID.OpInfo[IIOpNum].isOptionalDef();
 
   // If the instruction requires a register in a different class, create
   // a new virtual register and copy the value into it.
@@ -286,7 +286,7 @@ InstrEmitter::AddRegisterOperand(MachineInstr *MI, SDValue Op,
     const TargetRegisterClass *DstRC = 0;
     if (IIOpNum < II->getNumOperands())
       DstRC = TII->getRegClass(*II, IIOpNum, TRI);
-    assert((DstRC || (TID.isVariadic() && IIOpNum >= TID.getNumOperands())) &&
+    assert((DstRC || (MCID.isVariadic() && IIOpNum >= MCID.getNumOperands())) &&
            "Don't have operand info for this instruction!");
     if (DstRC && !SrcRC->hasSuperClassEq(DstRC)) {
       unsigned NewVReg = MRI->createVirtualRegister(DstRC);
@@ -312,7 +312,7 @@ InstrEmitter::AddRegisterOperand(MachineInstr *MI, SDValue Op,
     while (Idx > 0 &&
            MI->getOperand(Idx-1).isReg() && MI->getOperand(Idx-1).isImplicit())
       --Idx;
-    bool isTied = MI->getDesc().getOperandConstraint(Idx, TOI::TIED_TO) != -1;
+    bool isTied = MI->getDesc().getOperandConstraint(Idx, MCOI::TIED_TO) != -1;
     if (isTied)
       isKill = false;
   }
@@ -330,7 +330,7 @@ InstrEmitter::AddRegisterOperand(MachineInstr *MI, SDValue Op,
 /// assertions only.
 void InstrEmitter::AddOperand(MachineInstr *MI, SDValue Op,
                               unsigned IIOpNum,
-                              const TargetInstrDesc *II,
+                              const MCInstrDesc *II,
                               DenseMap<SDValue, unsigned> &VRBaseMap,
                               bool IsDebug, bool IsClone, bool IsCloned) {
   if (Op.isMachineOpcode()) {
@@ -556,7 +556,7 @@ void InstrEmitter::EmitRegSequence(SDNode *Node,
   unsigned NumOps = Node->getNumOperands();
   assert((NumOps & 1) == 1 &&
          "REG_SEQUENCE must have an odd number of operands!");
-  const TargetInstrDesc &II = TII->get(TargetOpcode::REG_SEQUENCE);
+  const MCInstrDesc &II = TII->get(TargetOpcode::REG_SEQUENCE);
   for (unsigned i = 1; i != NumOps; ++i) {
     SDValue Op = Node->getOperand(i);
     if ((i & 1) == 0) {
@@ -597,7 +597,7 @@ InstrEmitter::EmitDbgValue(SDDbgValue *SD,
     return TII->emitFrameIndexDebugValue(*MF, FrameIx, Offset, MDPtr, DL);
   }
   // Otherwise, we're going to create an instruction here.
-  const TargetInstrDesc &II = TII->get(TargetOpcode::DBG_VALUE);
+  const MCInstrDesc &II = TII->get(TargetOpcode::DBG_VALUE);
   MachineInstrBuilder MIB = BuildMI(*MF, DL, II);
   if (SD->getKind() == SDDbgValue::SDNODE) {
     SDNode *Node = SD->getSDNode();
@@ -668,7 +668,7 @@ EmitMachineNode(SDNode *Node, bool IsClone, bool IsCloned,
     // We want a unique VR for each IMPLICIT_DEF use.
     return;
   
-  const TargetInstrDesc &II = TII->get(Opc);
+  const MCInstrDesc &II = TII->get(Opc);
   unsigned NumResults = CountResults(Node);
   unsigned NodeOperands = CountOperands(Node);
   bool HasPhysRegOuts = NumResults > II.getNumDefs() && II.getImplicitDefs()!=0;
@@ -697,9 +697,9 @@ EmitMachineNode(SDNode *Node, bool IsClone, bool IsCloned,
         UsedRegs.push_back(cast<RegisterSDNode>(F->getOperand(1))->getReg());
       else {
         // Collect declared implicit uses.
-        const TargetInstrDesc &TID = TII->get(F->getMachineOpcode());
-        UsedRegs.append(TID.getImplicitUses(),
-                        TID.getImplicitUses() + TID.getNumImplicitUses());
+        const MCInstrDesc &MCID = TII->get(F->getMachineOpcode());
+        UsedRegs.append(MCID.getImplicitUses(),
+                        MCID.getImplicitUses() + MCID.getNumImplicitUses());
         // In addition to declared implicit uses, we must also check for
         // direct RegisterSDNode operands.
         for (unsigned i = 0, e = F->getNumOperands(); i != e; ++i)
diff --git a/lib/CodeGen/SelectionDAG/InstrEmitter.h b/lib/CodeGen/SelectionDAG/InstrEmitter.h
index 02c044c3f8..19fc0445b1 100644
--- a/lib/CodeGen/SelectionDAG/InstrEmitter.h
+++ b/lib/CodeGen/SelectionDAG/InstrEmitter.h
@@ -22,7 +22,7 @@
 
 namespace llvm {
 
-class TargetInstrDesc;
+class MCInstrDesc;
 class SDDbgValue;
 
 class InstrEmitter {
@@ -49,7 +49,7 @@ class InstrEmitter {
                                     unsigned ResNo) const;
 
   void CreateVirtualRegisters(SDNode *Node, MachineInstr *MI,
-                              const TargetInstrDesc &II,
+                              const MCInstrDesc &II,
                               bool IsClone, bool IsCloned,
                               DenseMap<SDValue, unsigned> &VRBaseMap);
 
@@ -63,7 +63,7 @@ class InstrEmitter {
   /// not in the required register class.
   void AddRegisterOperand(MachineInstr *MI, SDValue Op,
                           unsigned IIOpNum,
-                          const TargetInstrDesc *II,
+                          const MCInstrDesc *II,
                           DenseMap<SDValue, unsigned> &VRBaseMap,
                           bool IsDebug, bool IsClone, bool IsCloned);
 
@@ -73,7 +73,7 @@ class InstrEmitter {
   /// assertions only.
   void AddOperand(MachineInstr *MI, SDValue Op,
                   unsigned IIOpNum,
-                  const TargetInstrDesc *II,
+                  const MCInstrDesc *II,
                   DenseMap<SDValue, unsigned> &VRBaseMap,
                   bool IsDebug, bool IsClone, bool IsCloned);
 
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
index 6bed1dbc47..b275c6321a 100644
--- a/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
@@ -249,14 +249,14 @@ SUnit *ScheduleDAGFast::CopyAndMoveSuccessors(SUnit *SU) {
     assert(N->getNodeId() == -1 && "Node already inserted!");
     N->setNodeId(NewSU->NodeNum);
       
-    const TargetInstrDesc &TID = TII->get(N->getMachineOpcode());
-    for (unsigned i = 0; i != TID.getNumOperands(); ++i) {
-      if (TID.getOperandConstraint(i, TOI::TIED_TO) != -1) {
+    const MCInstrDesc &MCID = TII->get(N->getMachineOpcode());
+    for (unsigned i = 0; i != MCID.getNumOperands(); ++i) {
+      if (MCID.getOperandConstraint(i, MCOI::TIED_TO) != -1) {
         NewSU->isTwoAddress = true;
         break;
       }
     }
-    if (TID.isCommutable())
+    if (MCID.isCommutable())
       NewSU->isCommutable = true;
 
     // LoadNode may already exist. This can happen when there is another
@@ -422,10 +422,10 @@ void ScheduleDAGFast::InsertCopiesAndMoveSuccs(SUnit *SU, unsigned Reg,
 /// FIXME: Move to SelectionDAG?
 static EVT getPhysicalRegisterVT(SDNode *N, unsigned Reg,
                                  const TargetInstrInfo *TII) {
-  const TargetInstrDesc &TID = TII->get(N->getMachineOpcode());
-  assert(TID.ImplicitDefs && "Physical reg def must be in implicit def list!");
-  unsigned NumRes = TID.getNumDefs();
-  for (const unsigned *ImpDef = TID.getImplicitDefs(); *ImpDef; ++ImpDef) {
+  const MCInstrDesc &MCID = TII->get(N->getMachineOpcode());
+  assert(MCID.ImplicitDefs && "Physical reg def must be in implicit def list!");
+  unsigned NumRes = MCID.getNumDefs();
+  for (const unsigned *ImpDef = MCID.getImplicitDefs(); *ImpDef; ++ImpDef) {
     if (Reg == *ImpDef)
       break;
     ++NumRes;
@@ -505,10 +505,10 @@ bool ScheduleDAGFast::DelayForLiveRegsBottomUp(SUnit *SU,
     }
     if (!Node->isMachineOpcode())
       continue;
-    const TargetInstrDesc &TID = TII->get(Node->getMachineOpcode());
-    if (!TID.ImplicitDefs)
+    const MCInstrDesc &MCID = TII->get(Node->getMachineOpcode());
+    if (!MCID.ImplicitDefs)
       continue;
-    for (const unsigned *Reg = TID.ImplicitDefs; *Reg; ++Reg) {
+    for (const unsigned *Reg = MCID.ImplicitDefs; *Reg; ++Reg) {
       CheckForLiveRegDef(SU, *Reg, LiveRegDefs, RegAdded, LRegs, TRI);
     }
   }
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
index ff36e757c2..12b183804c 100644
--- a/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
@@ -302,7 +302,7 @@ static void GetCostForDef(const ScheduleDAGSDNodes::RegDefIter &RegDefPos,
     }
 
     unsigned Idx = RegDefPos.GetIdx();
-    const TargetInstrDesc Desc = TII->get(Opcode);
+    const MCInstrDesc Desc = TII->get(Opcode);
     const TargetRegisterClass *RC = TII->getRegClass(Desc, Idx, TRI);
     RegClass = RC->getID();
     // FIXME: Cost arbitrarily set to 1 because there doesn't seem to be a
@@ -837,14 +837,14 @@ SUnit *ScheduleDAGRRList::CopyAndMoveSuccessors(SUnit *SU) {
     assert(N->getNodeId() == -1 && "Node already inserted!");
     N->setNodeId(NewSU->NodeNum);
 
-    const TargetInstrDesc &TID = TII->get(N->getMachineOpcode());
-    for (unsigned i = 0; i != TID.getNumOperands(); ++i) {
-      if (TID.getOperandConstraint(i, TOI::TIED_TO) != -1) {
+    const MCInstrDesc &MCID = TII->get(N->getMachineOpcode());
+    for (unsigned i = 0; i != MCID.getNumOperands(); ++i) {
+      if (MCID.getOperandConstraint(i, MCOI::TIED_TO) != -1) {
         NewSU->isTwoAddress = true;
         break;
       }
     }
-    if (TID.isCommutable())
+    if (MCID.isCommutable())
       NewSU->isCommutable = true;
 
     InitNumRegDefsLeft(NewSU);
@@ -1024,10 +1024,10 @@ void ScheduleDAGRRList::InsertCopiesAndMoveSuccs(SUnit *SU, unsigned Reg,
 /// FIXME: Move to SelectionDAG?
 static EVT getPhysicalRegisterVT(SDNode *N, unsigned Reg,
                                  const TargetInstrInfo *TII) {
-  const TargetInstrDesc &TID = TII->get(N->getMachineOpcode());
-  assert(TID.ImplicitDefs && "Physical reg def must be in implicit def list!");
-  unsigned NumRes = TID.getNumDefs();
-  for (const unsigned *ImpDef = TID.getImplicitDefs(); *ImpDef; ++ImpDef) {
+  const MCInstrDesc &MCID = TII->get(N->getMachineOpcode());
+  assert(MCID.ImplicitDefs && "Physical reg def must be in implicit def list!");
+  unsigned NumRes = MCID.getNumDefs();
+  for (const unsigned *ImpDef = MCID.getImplicitDefs(); *ImpDef; ++ImpDef) {
     if (Reg == *ImpDef)
       break;
     ++NumRes;
@@ -1108,10 +1108,10 @@ DelayForLiveRegsBottomUp(SUnit *SU, SmallVector<unsigned, 4> &LRegs) {
 
     if (!Node->isMachineOpcode())
       continue;
-    const TargetInstrDesc &TID = TII->get(Node->getMachineOpcode());
-    if (!TID.ImplicitDefs)
+    const MCInstrDesc &MCID = TII->get(Node->getMachineOpcode());
+    if (!MCID.ImplicitDefs)
       continue;
-    for (const unsigned *Reg = TID.ImplicitDefs; *Reg; ++Reg)
+    for (const unsigned *Reg = MCID.ImplicitDefs; *Reg; ++Reg)
       CheckForLiveRegDef(SU, *Reg, LiveRegDefs, RegAdded, LRegs, TRI);
   }
 
@@ -2606,11 +2606,11 @@ void RegReductionPQBase::initNodes(std::vector<SUnit> &sunits) {
 bool RegReductionPQBase::canClobber(const SUnit *SU, const SUnit *Op) {
   if (SU->isTwoAddress) {
     unsigned Opc = SU->getNode()->getMachineOpcode();
-    const TargetInstrDesc &TID = TII->get(Opc);
-    unsigned NumRes = TID.getNumDefs();
-    unsigned NumOps = TID.getNumOperands() - NumRes;
+    const MCInstrDesc &MCID = TII->get(Opc);
+    unsigned NumRes = MCID.getNumDefs();
+    unsigned NumOps = MCID.getNumOperands() - NumRes;
     for (unsigned i = 0; i != NumOps; ++i) {
-      if (TID.getOperandConstraint(i+NumRes, TOI::TIED_TO) != -1) {
+      if (MCID.getOperandConstraint(i+NumRes, MCOI::TIED_TO) != -1) {
         SDNode *DU = SU->getNode()->getOperand(i).getNode();
         if (DU->getNodeId() != -1 &&
             Op->OrigNode == &(*SUnits)[DU->getNodeId()])
@@ -2790,11 +2790,11 @@ void RegReductionPQBase::AddPseudoTwoAddrDeps() {
 
     bool isLiveOut = hasOnlyLiveOutUses(SU);
     unsigned Opc = Node->getMachineOpcode();
-    const TargetInstrDesc &TID = TII->get(Opc);
-    unsigned NumRes = TID.getNumDefs();
-    unsigned NumOps = TID.getNumOperands() - NumRes;
+    const MCInstrDesc &MCID = TII->get(Opc);
+    unsigned NumRes = MCID.getNumDefs();
+    unsigned NumOps = MCID.getNumOperands() - NumRes;
     for (unsigned j = 0; j != NumOps; ++j) {
-      if (TID.getOperandConstraint(j+NumRes, TOI::TIED_TO) == -1)
+      if (MCID.getOperandConstraint(j+NumRes, MCOI::TIED_TO) == -1)
         continue;
       SDNode *DU = SU->getNode()->getOperand(j).getNode();
       if (DU->getNodeId() == -1)
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
index edd9e46588..ca70adafc0 100644
--- a/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
@@ -111,7 +111,7 @@ static void CheckForPhysRegDependency(SDNode *Def, SDNode *User, unsigned Op,
 
   unsigned ResNo = User->getOperand(2).getResNo();
   if (Def->isMachineOpcode()) {
-    const TargetInstrDesc &II = TII->get(Def->getMachineOpcode());
+    const MCInstrDesc &II = TII->get(Def->getMachineOpcode());
     if (ResNo >= II.getNumDefs() &&
         II.ImplicitDefs[ResNo - II.getNumDefs()] == Reg) {
       PhysReg = Reg;
@@ -255,8 +255,8 @@ void ScheduleDAGSDNodes::ClusterNodes() {
       continue;
 
     unsigned Opc = Node->getMachineOpcode();
-    const TargetInstrDesc &TID = TII->get(Opc);
-    if (TID.mayLoad())
+    const MCInstrDesc &MCID = TII->get(Opc);
+    if (MCID.mayLoad())
       // Cluster loads from "near" addresses into combined SUnits.
       ClusterNeighboringLoads(Node);
   }
@@ -390,14 +390,14 @@ void ScheduleDAGSDNodes::AddSchedEdges() {
 
     if (MainNode->isMachineOpcode()) {
       unsigned Opc = MainNode->getMachineOpcode();
-      const TargetInstrDesc &TID = TII->get(Opc);
-      for (unsigned i = 0; i != TID.getNumOperands(); ++i) {
-        if (TID.getOperandConstraint(i, TOI::TIED_TO) != -1) {
+      const MCInstrDesc &MCID = TII->get(Opc);
+      for (unsigned i = 0; i != MCID.getNumOperands(); ++i) {
+        if (MCID.getOperandConstraint(i, MCOI::TIED_TO) != -1) {
           SU->isTwoAddress = true;
           break;
         }
       }
-      if (TID.isCommutable())
+      if (MCID.isCommutable())
         SU->isCommutable = true;
     }
 
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 7a9439f4d5..8cdc63d6bc 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -354,9 +354,9 @@ bool SelectionDAGISel::runOnMachineFunction(MachineFunction &mf) {
       const MachineBasicBlock *MBB = I;
       for (MachineBasicBlock::const_iterator
              II = MBB->begin(), IE = MBB->end(); II != IE; ++II) {
-        const TargetInstrDesc &TID = TM.getInstrInfo()->get(II->getOpcode());
+        const MCInstrDesc &MCID = TM.getInstrInfo()->get(II->getOpcode());
 
-        if ((TID.isCall() && !TID.isReturn()) ||
+        if ((MCID.isCall() && !MCID.isReturn()) ||
             II->isStackAligningInlineAsm()) {
           MFI->setHasCalls(true);
           goto done;
@@ -681,7 +681,7 @@ void SelectionDAGISel::PrepareEHLandingPad() {
   // landing pad can thus be detected via the MachineModuleInfo.
   MCSymbol *Label = MF->getMMI().addLandingPad(FuncInfo->MBB);
 
-  const TargetInstrDesc &II = TM.getInstrInfo()->get(TargetOpcode::EH_LABEL);
+  const MCInstrDesc &II = TM.getInstrInfo()->get(TargetOpcode::EH_LABEL);
   BuildMI(*FuncInfo->MBB, FuncInfo->InsertPt, SDB->getCurDebugLoc(), II)
     .addSym(Label);
 
@@ -2613,9 +2613,9 @@ SelectCodeCommon(SDNode *NodeToMatch, const unsigned char *MatcherTable,
       if (EmitNodeInfo & OPFL_MemRefs) {
         // Only attach load or store memory operands if the generated
         // instruction may load or store.
-        const TargetInstrDesc &TID = TM.getInstrInfo()->get(TargetOpc);
-        bool mayLoad = TID.mayLoad();
-        bool mayStore = TID.mayStore();
+        const MCInstrDesc &MCID = TM.getInstrInfo()->get(TargetOpc);
+        bool mayLoad = MCID.mayLoad();
+        bool mayStore = MCID.mayStore();
 
         unsigned NumMemRefs = 0;
         for (SmallVector<MachineMemOperand*, 2>::const_iterator I =
diff --git a/lib/CodeGen/StackSlotColoring.cpp b/lib/CodeGen/StackSlotColoring.cpp
index aefaa1098b..57cbe1ba59 100644
--- a/lib/CodeGen/StackSlotColoring.cpp
+++ b/lib/CodeGen/StackSlotColoring.cpp
@@ -504,7 +504,7 @@ bool StackSlotColoring::PropagateBackward(MachineBasicBlock::iterator MII,
     bool FoundDef = false;  // Not counting 2address def.
 
     Uses.clear();
-    const TargetInstrDesc &TID = MII->getDesc();
+    const MCInstrDesc &MCID = MII->getDesc();
     for (unsigned i = 0, e = MII->getNumOperands(); i != e; ++i) {
       MachineOperand &MO = MII->getOperand(i);
       if (!MO.isReg())
@@ -521,7 +521,7 @@ bool StackSlotColoring::PropagateBackward(MachineBasicBlock::iterator MII,
         if (MO.getSubReg() || MII->isSubregToReg())
           return false;
 
-        const TargetRegisterClass *RC = TII->getRegClass(TID, i, TRI);
+        const TargetRegisterClass *RC = TII->getRegClass(MCID, i, TRI);
         if (RC && !RC->contains(NewReg))
           return false;
 
@@ -566,7 +566,7 @@ bool StackSlotColoring::PropagateForward(MachineBasicBlock::iterator MII,
   SmallVector<MachineOperand*, 4> Uses;
   while (++MII != MBB->end()) {
     bool FoundKill = false;
-    const TargetInstrDesc &TID = MII->getDesc();
+    const MCInstrDesc &MCID = MII->getDesc();
     for (unsigned i = 0, e = MII->getNumOperands(); i != e; ++i) {
       MachineOperand &MO = MII->getOperand(i);
       if (!MO.isReg())
@@ -583,7 +583,7 @@ bool StackSlotColoring::PropagateForward(MachineBasicBlock::iterator MII,
         if (MO.getSubReg())
           return false;
 
-        const TargetRegisterClass *RC = TII->getRegClass(TID, i, TRI);
+        const TargetRegisterClass *RC = TII->getRegClass(MCID, i, TRI);
         if (RC && !RC->contains(NewReg))
           return false;
         if (MO.isKill())
diff --git a/lib/CodeGen/TailDuplication.cpp b/lib/CodeGen/TailDuplication.cpp
index 906a6f58ca..6fe4bd739b 100644
--- a/lib/CodeGen/TailDuplication.cpp
+++ b/lib/CodeGen/TailDuplication.cpp
@@ -529,8 +529,8 @@ TailDuplicatePass::shouldTailDuplicate(const MachineFunction &MF,
 
   bool hasIndirectBR = false;
   if (PreRegAlloc && !TailBB.empty()) {
-    const TargetInstrDesc &TID = TailBB.back().getDesc();
-    if (TID.isIndirectBranch()) {
+    const MCInstrDesc &MCID = TailBB.back().getDesc();
+    if (MCID.isIndirectBranch()) {
       MaxDuplicateCount = 20;
       hasIndirectBR = true;
     }
diff --git a/lib/CodeGen/TargetInstrInfoImpl.cpp b/lib/CodeGen/TargetInstrInfoImpl.cpp
index 34e2b33185..86e71d8ccb 100644
--- a/lib/CodeGen/TargetInstrInfoImpl.cpp
+++ b/lib/CodeGen/TargetInstrInfoImpl.cpp
@@ -59,8 +59,8 @@ TargetInstrInfoImpl::ReplaceTailWithBranchTo(MachineBasicBlock::iterator Tail,
 // the two operands returned by findCommutedOpIndices.
 MachineInstr *TargetInstrInfoImpl::commuteInstruction(MachineInstr *MI,
                                                       bool NewMI) const {
-  const TargetInstrDesc &TID = MI->getDesc();
-  bool HasDef = TID.getNumDefs();
+  const MCInstrDesc &MCID = MI->getDesc();
+  bool HasDef = MCID.getNumDefs();
   if (HasDef && !MI->getOperand(0).isReg())
     // No idea how to commute this instruction. Target should implement its own.
     return 0;
@@ -81,7 +81,7 @@ MachineInstr *TargetInstrInfoImpl::commuteInstruction(MachineInstr *MI,
   bool ChangeReg0 = false;
   if (HasDef && MI->getOperand(0).getReg() == Reg1) {
     // Must be two address instruction!
-    assert(MI->getDesc().getOperandConstraint(0, TOI::TIED_TO) &&
+    assert(MI->getDesc().getOperandConstraint(0, MCOI::TIED_TO) &&
            "Expecting a two-address instruction!");
     Reg2IsKill = false;
     ChangeReg0 = true;
@@ -119,12 +119,12 @@ MachineInstr *TargetInstrInfoImpl::commuteInstruction(MachineInstr *MI,
 bool TargetInstrInfoImpl::findCommutedOpIndices(MachineInstr *MI,
                                                 unsigned &SrcOpIdx1,
                                                 unsigned &SrcOpIdx2) const {
-  const TargetInstrDesc &TID = MI->getDesc();
-  if (!TID.isCommutable())
+  const MCInstrDesc &MCID = MI->getDesc();
+  if (!MCID.isCommutable())
     return false;
   // This assumes v0 = op v1, v2 and commuting would swap v1 and v2. If this
   // is not true, then the target must implement this.
-  SrcOpIdx1 = TID.getNumDefs();
+  SrcOpIdx1 = MCID.getNumDefs();
   SrcOpIdx2 = SrcOpIdx1 + 1;
   if (!MI->getOperand(SrcOpIdx1).isReg() ||
       !MI->getOperand(SrcOpIdx2).isReg())
@@ -137,12 +137,12 @@ bool TargetInstrInfoImpl::findCommutedOpIndices(MachineInstr *MI,
 bool TargetInstrInfoImpl::PredicateInstruction(MachineInstr *MI,
                             const SmallVectorImpl<MachineOperand> &Pred) const {
   bool MadeChange = false;
-  const TargetInstrDesc &TID = MI->getDesc();
-  if (!TID.isPredicable())
+  const MCInstrDesc &MCID = MI->getDesc();
+  if (!MCID.isPredicable())
     return false;
 
   for (unsigned j = 0, i = 0, e = MI->getNumOperands(); i != e; ++i) {
-    if (TID.OpInfo[i].isPredicate()) {
+    if (MCID.OpInfo[i].isPredicate()) {
       MachineOperand &MO = MI->getOperand(i);
       if (MO.isReg()) {
         MO.setReg(Pred[j].getReg());
@@ -332,10 +332,10 @@ isReallyTriviallyReMaterializableGeneric(const MachineInstr *MI,
       MF.getFrameInfo()->isImmutableObjectIndex(FrameIdx))
     return true;
 
-  const TargetInstrDesc &TID = MI->getDesc();
+  const MCInstrDesc &MCID = MI->getDesc();
 
   // Avoid instructions obviously unsafe for remat.
-  if (TID.isNotDuplicable() || TID.mayStore() ||
+  if (MCID.isNotDuplicable() || MCID.mayStore() ||
       MI->hasUnmodeledSideEffects())
     return false;
 
@@ -345,7 +345,7 @@ isReallyTriviallyReMaterializableGeneric(const MachineInstr *MI,
     return false;
 
   // Avoid instructions which load from potentially varying memory.
-  if (TID.mayLoad() && !MI->isInvariantLoad(AA))
+  if (MCID.mayLoad() && !MI->isInvariantLoad(AA))
     return false;
 
   // If any of the registers accessed are non-constant, conservatively assume
diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp
index f1c0bb19dc..6d6244e4f8 100644
--- a/lib/CodeGen/TwoAddressInstructionPass.cpp
+++ b/lib/CodeGen/TwoAddressInstructionPass.cpp
@@ -280,8 +280,8 @@ bool TwoAddressInstructionPass::Sink3AddrInstruction(MachineBasicBlock *MBB,
 /// isTwoAddrUse - Return true if the specified MI is using the specified
 /// register as a two-address operand.
 static bool isTwoAddrUse(MachineInstr *UseMI, unsigned Reg) {
-  const TargetInstrDesc &TID = UseMI->getDesc();
-  for (unsigned i = 0, e = TID.getNumOperands(); i != e; ++i) {
+  const MCInstrDesc &MCID = UseMI->getDesc();
+  for (unsigned i = 0, e = MCID.getNumOperands(); i != e; ++i) {
     MachineOperand &MO = UseMI->getOperand(i);
     if (MO.isReg() && MO.getReg() == Reg &&
         (MO.isDef() || UseMI->isRegTiedToDefOperand(i)))
@@ -443,8 +443,9 @@ static bool isKilled(MachineInstr &MI, unsigned Reg,
 /// isTwoAddrUse - Return true if the specified MI uses the specified register
 /// as a two-address use. If so, return the destination register by reference.
 static bool isTwoAddrUse(MachineInstr &MI, unsigned Reg, unsigned &DstReg) {
-  const TargetInstrDesc &TID = MI.getDesc();
-  unsigned NumOps = MI.isInlineAsm() ? MI.getNumOperands():TID.getNumOperands();
+  const MCInstrDesc &MCID = MI.getDesc();
+  unsigned NumOps = MI.isInlineAsm()
+    ? MI.getNumOperands() : MCID.getNumOperands();
   for (unsigned i = 0; i != NumOps; ++i) {
     const MachineOperand &MO = MI.getOperand(i);
     if (!MO.isReg() || !MO.isUse() || MO.getReg() != Reg)
@@ -761,10 +762,10 @@ void TwoAddressInstructionPass::ProcessCopy(MachineInstr *MI,
 static bool isSafeToDelete(MachineInstr *MI,
                            const TargetInstrInfo *TII,
                            SmallVector<unsigned, 4> &Kills) {
-  const TargetInstrDesc &TID = MI->getDesc();
-  if (TID.mayStore() || TID.isCall())
+  const MCInstrDesc &MCID = MI->getDesc();
+  if (MCID.mayStore() || MCID.isCall())
     return false;
-  if (TID.isTerminator() || MI->hasUnmodeledSideEffects())
+  if (MCID.isTerminator() || MI->hasUnmodeledSideEffects())
     return false;
 
   for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
@@ -854,7 +855,7 @@ TryInstructionTransform(MachineBasicBlock::iterator &mi,
                         MachineFunction::iterator &mbbi,
                         unsigned SrcIdx, unsigned DstIdx, unsigned Dist,
                         SmallPtrSet<MachineInstr*, 8> &Processed) {
-  const TargetInstrDesc &TID = mi->getDesc();
+  const MCInstrDesc &MCID = mi->getDesc();
   unsigned regA = mi->getOperand(DstIdx).getReg();
   unsigned regB = mi->getOperand(SrcIdx).getReg();
 
@@ -876,7 +877,7 @@ TryInstructionTransform(MachineBasicBlock::iterator &mi,
   unsigned regCIdx = ~0U;
   bool TryCommute = false;
   bool AggressiveCommute = false;
-  if (TID.isCommutable() && mi->getNumOperands() >= 3 &&
+  if (MCID.isCommutable() && mi->getNumOperands() >= 3 &&
       TII->findCommutedOpIndices(mi, SrcOp1, SrcOp2)) {
     if (SrcIdx == SrcOp1)
       regCIdx = SrcOp2;
@@ -907,7 +908,7 @@ TryInstructionTransform(MachineBasicBlock::iterator &mi,
   if (TargetRegisterInfo::isVirtualRegister(regA))
     ScanUses(regA, &*mbbi, Processed);
 
-  if (TID.isConvertibleTo3Addr()) {
+  if (MCID.isConvertibleTo3Addr()) {
     // This instruction is potentially convertible to a true
     // three-address instruction.  Check if it is profitable.
     if (!regBKilled || isProfitableToConv3Addr(regA, regB)) {
@@ -927,7 +928,7 @@ TryInstructionTransform(MachineBasicBlock::iterator &mi,
   //   movq (%rax), %rcx
   //   addq %rdx, %rcx
   // because it's preferable to schedule a load than a register copy.
-  if (TID.mayLoad() && !regBKilled) {
+  if (MCID.mayLoad() && !regBKilled) {
     // Determine if a load can be unfolded.
     unsigned LoadRegIndex;
     unsigned NewOpc =
@@ -936,14 +937,14 @@ TryInstructionTransform(MachineBasicBlock::iterator &mi,
                                       /*UnfoldStore=*/false,
                                       &LoadRegIndex);
     if (NewOpc != 0) {
-      const TargetInstrDesc &UnfoldTID = TII->get(NewOpc);
-      if (UnfoldTID.getNumDefs() == 1) {
+      const MCInstrDesc &UnfoldMCID = TII->get(NewOpc);
+      if (UnfoldMCID.getNumDefs() == 1) {
         MachineFunction &MF = *mbbi->getParent();
 
         // Unfold the load.
         DEBUG(dbgs() << "2addr:   UNFOLDING: " << *mi);
         const TargetRegisterClass *RC =
-          TII->getRegClass(UnfoldTID, LoadRegIndex, TRI);
+          TII->getRegClass(UnfoldMCID, LoadRegIndex, TRI);
         unsigned Reg = MRI->createVirtualRegister(RC);
         SmallVector<MachineInstr *, 2> NewMIs;
         if (!TII->unfoldMemoryOperand(MF, mi, Reg,
@@ -1067,7 +1068,7 @@ bool TwoAddressInstructionPass::runOnMachineFunction(MachineFunction &MF) {
       if (mi->isRegSequence())
         RegSequences.push_back(&*mi);
 
-      const TargetInstrDesc &TID = mi->getDesc();
+      const MCInstrDesc &MCID = mi->getDesc();
       bool FirstTied = true;
 
       DistanceMap.insert(std::make_pair(mi, ++Dist));
@@ -1077,7 +1078,7 @@ bool TwoAddressInstructionPass::runOnMachineFunction(MachineFunction &MF) {
       // First scan through all the tied register uses in this instruction
       // and record a list of pairs of tied operands for each register.
       unsigned NumOps = mi->isInlineAsm()
-        ? mi->getNumOperands() : TID.getNumOperands();
+        ? mi->getNumOperands() : MCID.getNumOperands();
       for (unsigned SrcIdx = 0; SrcIdx < NumOps; ++SrcIdx) {
         unsigned DstIdx = 0;
         if (!mi->isRegTiedToDefOperand(SrcIdx, &DstIdx))
diff --git a/lib/CodeGen/VirtRegRewriter.cpp b/lib/CodeGen/VirtRegRewriter.cpp
index 1850658805..a5ec797b27 100644
--- a/lib/CodeGen/VirtRegRewriter.cpp
+++ b/lib/CodeGen/VirtRegRewriter.cpp
@@ -679,8 +679,8 @@ static void ReMaterialize(MachineBasicBlock &MBB,
                           VirtRegMap &VRM) {
   MachineInstr *ReMatDefMI = VRM.getReMaterializedMI(Reg);
 #ifndef NDEBUG
-  const TargetInstrDesc &TID = ReMatDefMI->getDesc();
-  assert(TID.getNumDefs() == 1 &&
+  const MCInstrDesc &MCID = ReMatDefMI->getDesc();
+  assert(MCID.getNumDefs() == 1 &&
          "Don't know how to remat instructions that define > 1 values!");
 #endif
   TII->reMaterialize(MBB, MII, DestReg, 0, ReMatDefMI, *TRI);
@@ -1483,11 +1483,11 @@ OptimizeByUnfold(MachineBasicBlock::iterator &MII,
 /// where SrcReg is r1 and it is tied to r0. Return true if after
 /// commuting this instruction it will be r0 = op r2, r1.
 static bool CommuteChangesDestination(MachineInstr *DefMI,
-                                      const TargetInstrDesc &TID,
+                                      const MCInstrDesc &MCID,
                                       unsigned SrcReg,
                                       const TargetInstrInfo *TII,
                                       unsigned &DstIdx) {
-  if (TID.getNumDefs() != 1 && TID.getNumOperands() != 3)
+  if (MCID.getNumDefs() != 1 && MCID.getNumOperands() != 3)
     return false;
   if (!DefMI->getOperand(1).isReg() ||
       DefMI->getOperand(1).getReg() != SrcReg)
@@ -1527,11 +1527,11 @@ CommuteToFoldReload(MachineBasicBlock::iterator &MII,
   MachineInstr &MI = *MII;
   MachineBasicBlock::iterator DefMII = prior(MII);
   MachineInstr *DefMI = DefMII;
-  const TargetInstrDesc &TID = DefMI->getDesc();
+  const MCInstrDesc &MCID = DefMI->getDesc();
   unsigned NewDstIdx;
   if (DefMII != MBB->begin() &&
-      TID.isCommutable() &&
-      CommuteChangesDestination(DefMI, TID, SrcReg, TII, NewDstIdx)) {
+      MCID.isCommutable() &&
+      CommuteChangesDestination(DefMI, MCID, SrcReg, TII, NewDstIdx)) {
     MachineOperand &NewDstMO = DefMI->getOperand(NewDstIdx);
     unsigned NewReg = NewDstMO.getReg();
     if (!NewDstMO.isKill() || TRI->regsOverlap(NewReg, SrcReg))
@@ -1658,9 +1658,9 @@ SpillRegToStackSlot(MachineBasicBlock::iterator &MII,
 /// isSafeToDelete - Return true if this instruction doesn't produce any side
 /// effect and all of its defs are dead.
 static bool isSafeToDelete(MachineInstr &MI) {
-  const TargetInstrDesc &TID = MI.getDesc();
-  if (TID.mayLoad() || TID.mayStore() || TID.isTerminator() ||
-      TID.isCall() || TID.isBarrier() || TID.isReturn() ||
+  const MCInstrDesc &MCID = MI.getDesc();
+  if (MCID.mayLoad() || MCID.mayStore() || MCID.isTerminator() ||
+      MCID.isCall() || MCID.isBarrier() || MCID.isReturn() ||
       MI.isLabel() || MI.isDebugValue() ||
       MI.hasUnmodeledSideEffects())
     return false;
diff --git a/lib/Target/ARM/ARMBaseInstrInfo.cpp b/lib/Target/ARM/ARMBaseInstrInfo.cpp
index 44a3976115..c619e8f8c6 100644
--- a/lib/Target/ARM/ARMBaseInstrInfo.cpp
+++ b/lib/Target/ARM/ARMBaseInstrInfo.cpp
@@ -136,9 +136,9 @@ ARMBaseInstrInfo::convertToThreeAddress(MachineFunction::iterator &MFI,
   MachineInstr *UpdateMI = NULL;
   MachineInstr *MemMI = NULL;
   unsigned AddrMode = (TSFlags & ARMII::AddrModeMask);
-  const TargetInstrDesc &TID = MI->getDesc();
-  unsigned NumOps = TID.getNumOperands();
-  bool isLoad = !TID.mayStore();
+  const MCInstrDesc &MCID = MI->getDesc();
+  unsigned NumOps = MCID.getNumOperands();
+  bool isLoad = !MCID.mayStore();
   const MachineOperand &WB = isLoad ? MI->getOperand(1) : MI->getOperand(0);
   const MachineOperand &Base = MI->getOperand(2);
   const MachineOperand &Offset = MI->getOperand(NumOps-3);
@@ -475,8 +475,8 @@ SubsumesPredicate(const SmallVectorImpl<MachineOperand> &Pred1,
 bool ARMBaseInstrInfo::DefinesPredicate(MachineInstr *MI,
                                     std::vector<MachineOperand> &Pred) const {
   // FIXME: This confuses implicit_def with optional CPSR def.
-  const TargetInstrDesc &TID = MI->getDesc();
-  if (!TID.getImplicitDefs() && !TID.hasOptionalDef())
+  const MCInstrDesc &MCID = MI->getDesc();
+  if (!MCID.getImplicitDefs() && !MCID.hasOptionalDef())
     return false;
 
   bool Found = false;
@@ -495,11 +495,11 @@ bool ARMBaseInstrInfo::DefinesPredicate(MachineInstr *MI,
 /// By default, this returns true for every instruction with a
 /// PredicateOperand.
 bool ARMBaseInstrInfo::isPredicable(MachineInstr *MI) const {
-  const TargetInstrDesc &TID = MI->getDesc();
-  if (!TID.isPredicable())
+  const MCInstrDesc &MCID = MI->getDesc();
+  if (!MCID.isPredicable())
     return false;
 
-  if ((TID.TSFlags & ARMII::DomainMask) == ARMII::DomainNEON) {
+  if ((MCID.TSFlags & ARMII::DomainMask) == ARMII::DomainNEON) {
     ARMFunctionInfo *AFI =
       MI->getParent()->getParent()->getInfo<ARMFunctionInfo>();
     return AFI->isThumb2Function();
@@ -525,8 +525,8 @@ unsigned ARMBaseInstrInfo::GetInstSizeInBytes(const MachineInstr *MI) const {
   const MCAsmInfo *MAI = MF->getTarget().getMCAsmInfo();
 
   // Basic size info comes from the TSFlags field.
-  const TargetInstrDesc &TID = MI->getDesc();
-  uint64_t TSFlags = TID.TSFlags;
+  const MCInstrDesc &MCID = MI->getDesc();
+  uint64_t TSFlags = MCID.TSFlags;
 
   unsigned Opc = MI->getOpcode();
   switch ((TSFlags & ARMII::SizeMask) >> ARMII::SizeShift) {
@@ -588,9 +588,9 @@ unsigned ARMBaseInstrInfo::GetInstSizeInBytes(const MachineInstr *MI) const {
       // entry is one byte; TBH two byte each.
       unsigned EntrySize = (Opc == ARM::t2TBB_JT)
         ? 1 : ((Opc == ARM::t2TBH_JT) ? 2 : 4);
-      unsigned NumOps = TID.getNumOperands();
+      unsigned NumOps = MCID.getNumOperands();
       MachineOperand JTOP =
-        MI->getOperand(NumOps - (TID.isPredicable() ? 3 : 2));
+        MI->getOperand(NumOps - (MCID.isPredicable() ? 3 : 2));
       unsigned JTI = JTOP.getIndex();
       const MachineJumpTableInfo *MJTI = MF->getJumpTableInfo();
       assert(MJTI != 0);
@@ -1363,7 +1363,7 @@ bool llvm::rewriteARMFrameIndex(MachineInstr &MI, unsigned FrameRegIdx,
                                 unsigned FrameReg, int &Offset,
                                 const ARMBaseInstrInfo &TII) {
   unsigned Opcode = MI.getOpcode();
-  const TargetInstrDesc &Desc = MI.getDesc();
+  const MCInstrDesc &Desc = MI.getDesc();
   unsigned AddrMode = (Desc.TSFlags & ARMII::AddrModeMask);
   bool isSub = false;
 
@@ -1803,7 +1803,7 @@ ARMBaseInstrInfo::getNumMicroOps(const InstrItineraryData *ItinData,
   if (!ItinData || ItinData->isEmpty())
     return 1;
 
-  const TargetInstrDesc &Desc = MI->getDesc();
+  const MCInstrDesc &Desc = MI->getDesc();
   unsigned Class = Desc.getSchedClass();
   unsigned UOps = ItinData->Itineraries[Class].NumMicroOps;
   if (UOps)
@@ -1906,10 +1906,10 @@ ARMBaseInstrInfo::getNumMicroOps(const InstrItineraryData *ItinData,
 
 int
 ARMBaseInstrInfo::getVLDMDefCycle(const InstrItineraryData *ItinData,
-                                  const TargetInstrDesc &DefTID,
+                                  const MCInstrDesc &DefMCID,
                                   unsigned DefClass,
                                   unsigned DefIdx, unsigned DefAlign) const {
-  int RegNo = (int)(DefIdx+1) - DefTID.getNumOperands() + 1;
+  int RegNo = (int)(DefIdx+1) - DefMCID.getNumOperands() + 1;
   if (RegNo <= 0)
     // Def is the address writeback.
     return ItinData->getOperandCycle(DefClass, DefIdx);
@@ -1924,7 +1924,7 @@ ARMBaseInstrInfo::getVLDMDefCycle(const InstrItineraryData *ItinData,
     DefCycle = RegNo;
     bool isSLoad = false;
 
-    switch (DefTID.getOpcode()) {
+    switch (DefMCID.getOpcode()) {
     default: break;
     case ARM::VLDMSIA:
     case ARM::VLDMSIA_UPD:
@@ -1947,10 +1947,10 @@ ARMBaseInstrInfo::getVLDMDefCycle(const InstrItineraryData *ItinData,
 
 int
 ARMBaseInstrInfo::getLDMDefCycle(const InstrItineraryData *ItinData,
-                                 const TargetInstrDesc &DefTID,
+                                 const MCInstrDesc &DefMCID,
                                  unsigned DefClass,
                                  unsigned DefIdx, unsigned DefAlign) const {
-  int RegNo = (int)(DefIdx+1) - DefTID.getNumOperands() + 1;
+  int RegNo = (int)(DefIdx+1) - DefMCID.getNumOperands() + 1;
   if (RegNo <= 0)
     // Def is the address writeback.
     return ItinData->getOperandCycle(DefClass, DefIdx);
@@ -1982,10 +1982,10 @@ ARMBaseInstrInfo::getLDMDefCycle(const InstrItineraryData *ItinData,
 
 int
 ARMBaseInstrInfo::getVSTMUseCycle(const InstrItineraryData *ItinData,
-                                  const TargetInstrDesc &UseTID,
+                                  const MCInstrDesc &UseMCID,
                                   unsigned UseClass,
                                   unsigned UseIdx, unsigned UseAlign) const {
-  int RegNo = (int)(UseIdx+1) - UseTID.getNumOperands() + 1;
+  int RegNo = (int)(UseIdx+1) - UseMCID.getNumOperands() + 1;
   if (RegNo <= 0)
     return ItinData->getOperandCycle(UseClass, UseIdx);
 
@@ -1999,7 +1999,7 @@ ARMBaseInstrInfo::getVSTMUseCycle(const InstrItineraryData *ItinData,
     UseCycle = RegNo;
     bool isSStore = false;
 
-    switch (UseTID.getOpcode()) {
+    switch (UseMCID.getOpcode()) {
     default: break;
     case ARM::VSTMSIA:
     case ARM::VSTMSIA_UPD:
@@ -2022,10 +2022,10 @@ ARMBaseInstrInfo::getVSTMUseCycle(const InstrItineraryData *ItinData,
 
 int
 ARMBaseInstrInfo::getSTMUseCycle(const InstrItineraryData *ItinData,
-                                 const TargetInstrDesc &UseTID,
+                                 const MCInstrDesc &UseMCID,
                                  unsigned UseClass,
                                  unsigned UseIdx, unsigned UseAlign) const {
-  int RegNo = (int)(UseIdx+1) - UseTID.getNumOperands() + 1;
+  int RegNo = (int)(UseIdx+1) - UseMCID.getNumOperands() + 1;
   if (RegNo <= 0)
     return ItinData->getOperandCycle(UseClass, UseIdx);
 
@@ -2051,14 +2051,14 @@ ARMBaseInstrInfo::getSTMUseCycle(const InstrItineraryData *ItinData,
 
 int
 ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
-                                    const TargetInstrDesc &DefTID,
+                                    const MCInstrDesc &DefMCID,
                                     unsigned DefIdx, unsigned DefAlign,
-                                    const TargetInstrDesc &UseTID,
+                                    const MCInstrDesc &UseMCID,
                                     unsigned UseIdx, unsigned UseAlign) const {
-  unsigned DefClass = DefTID.getSchedClass();
-  unsigned UseClass = UseTID.getSchedClass();
+  unsigned DefClass = DefMCID.getSchedClass();
+  unsigned UseClass = UseMCID.getSchedClass();
 
-  if (DefIdx < DefTID.getNumDefs() && UseIdx < UseTID.getNumOperands())
+  if (DefIdx < DefMCID.getNumDefs() && UseIdx < UseMCID.getNumOperands())
     return ItinData->getOperandLatency(DefClass, DefIdx, UseClass, UseIdx);
 
   // This may be a def / use of a variable_ops instruction, the operand
@@ -2066,7 +2066,7 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
   // figure it out.
   int DefCycle = -1;
   bool LdmBypass = false;
-  switch (DefTID.getOpcode()) {
+  switch (DefMCID.getOpcode()) {
   default:
     DefCycle = ItinData->getOperandCycle(DefClass, DefIdx);
     break;
@@ -2077,7 +2077,7 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
   case ARM::VLDMSIA:
   case ARM::VLDMSIA_UPD:
   case ARM::VLDMSDB_UPD:
-    DefCycle = getVLDMDefCycle(ItinData, DefTID, DefClass, DefIdx, DefAlign);
+    DefCycle = getVLDMDefCycle(ItinData, DefMCID, DefClass, DefIdx, DefAlign);
     break;
 
   case ARM::LDMIA_RET:
@@ -2098,7 +2098,7 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
   case ARM::t2LDMIA_UPD:
   case ARM::t2LDMDB_UPD:
     LdmBypass = 1;
-    DefCycle = getLDMDefCycle(ItinData, DefTID, DefClass, DefIdx, DefAlign);
+    DefCycle = getLDMDefCycle(ItinData, DefMCID, DefClass, DefIdx, DefAlign);
     break;
   }
 
@@ -2107,7 +2107,7 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
     DefCycle = 2;
 
   int UseCycle = -1;
-  switch (UseTID.getOpcode()) {
+  switch (UseMCID.getOpcode()) {
   default:
     UseCycle = ItinData->getOperandCycle(UseClass, UseIdx);
     break;
@@ -2118,7 +2118,7 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
   case ARM::VSTMSIA:
   case ARM::VSTMSIA_UPD:
   case ARM::VSTMSDB_UPD:
-    UseCycle = getVSTMUseCycle(ItinData, UseTID, UseClass, UseIdx, UseAlign);
+    UseCycle = getVSTMUseCycle(ItinData, UseMCID, UseClass, UseIdx, UseAlign);
     break;
 
   case ARM::STMIA:
@@ -2137,7 +2137,7 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
   case ARM::t2STMDB:
   case ARM::t2STMIA_UPD:
   case ARM::t2STMDB_UPD:
-    UseCycle = getSTMUseCycle(ItinData, UseTID, UseClass, UseIdx, UseAlign);
+    UseCycle = getSTMUseCycle(ItinData, UseMCID, UseClass, UseIdx, UseAlign);
     break;
   }
 
@@ -2150,7 +2150,7 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
     if (LdmBypass) {
       // It's a variable_ops instruction so we can't use DefIdx here. Just use
       // first def operand.
-      if (ItinData->hasPipelineForwarding(DefClass, DefTID.getNumOperands()-1,
+      if (ItinData->hasPipelineForwarding(DefClass, DefMCID.getNumOperands()-1,
                                           UseClass, UseIdx))
         --UseCycle;
     } else if (ItinData->hasPipelineForwarding(DefClass, DefIdx,
@@ -2170,11 +2170,11 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
       DefMI->isRegSequence() || DefMI->isImplicitDef())
     return 1;
 
-  const TargetInstrDesc &DefTID = DefMI->getDesc();
+  const MCInstrDesc &DefMCID = DefMI->getDesc();
   if (!ItinData || ItinData->isEmpty())
-    return DefTID.mayLoad() ? 3 : 1;
+    return DefMCID.mayLoad() ? 3 : 1;
 
-  const TargetInstrDesc &UseTID = UseMI->getDesc();
+  const MCInstrDesc &UseMCID = UseMI->getDesc();
   const MachineOperand &DefMO = DefMI->getOperand(DefIdx);
   if (DefMO.getReg() == ARM::CPSR) {
     if (DefMI->getOpcode() == ARM::FMSTAT) {
@@ -2183,7 +2183,7 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
     }
 
     // CPSR set and branch can be paired in the same cycle.
-    if (UseTID.isBranch())
+    if (UseMCID.isBranch())
       return 0;
   }
 
@@ -2191,14 +2191,14 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
     ? (*DefMI->memoperands_begin())->getAlignment() : 0;
   unsigned UseAlign = UseMI->hasOneMemOperand()
     ? (*UseMI->memoperands_begin())->getAlignment() : 0;
-  int Latency = getOperandLatency(ItinData, DefTID, DefIdx, DefAlign,
-                                  UseTID, UseIdx, UseAlign);
+  int Latency = getOperandLatency(ItinData, DefMCID, DefIdx, DefAlign,
+                                  UseMCID, UseIdx, UseAlign);
 
   if (Latency > 1 &&
       (Subtarget.isCortexA8() || Subtarget.isCortexA9())) {
     // FIXME: Shifter op hack: no shift (i.e. [r +/- r]) or [r + r << 2]
     // variants are one cycle cheaper.
-    switch (DefTID.getOpcode()) {
+    switch (DefMCID.getOpcode()) {
     default: break;
     case ARM::LDRrs:
     case ARM::LDRBrs: {
@@ -2223,7 +2223,7 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
   }
 
   if (DefAlign < 8 && Subtarget.isCortexA9())
-    switch (DefTID.getOpcode()) {
+    switch (DefMCID.getOpcode()) {
     default: break;
     case ARM::VLD1q8:
     case ARM::VLD1q16:
@@ -2327,37 +2327,37 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
   if (!DefNode->isMachineOpcode())
     return 1;
 
-  const TargetInstrDesc &DefTID = get(DefNode->getMachineOpcode());
+  const MCInstrDesc &DefMCID = get(DefNode->getMachineOpcode());
 
-  if (isZeroCost(DefTID.Opcode))
+  if (isZeroCost(DefMCID.Opcode))
     return 0;
 
   if (!ItinData || ItinData->isEmpty())
-    return DefTID.mayLoad() ? 3 : 1;
+    return DefMCID.mayLoad() ? 3 : 1;
 
   if (!UseNode->isMachineOpcode()) {
-    int Latency = ItinData->getOperandCycle(DefTID.getSchedClass(), DefIdx);
+    int Latency = ItinData->getOperandCycle(DefMCID.getSchedClass(), DefIdx);
     if (Subtarget.isCortexA9())
       return Latency <= 2 ? 1 : Latency - 1;
     else
       return Latency <= 3 ? 1 : Latency - 2;
   }
 
-  const TargetInstrDesc &UseTID = get(UseNode->getMachineOpcode());
+  const MCInstrDesc &UseMCID = get(UseNode->getMachineOpcode());
   const MachineSDNode *DefMN = dyn_cast<MachineSDNode>(DefNode);
   unsigned DefAlign = !DefMN->memoperands_empty()
     ? (*DefMN->memoperands_begin())->getAlignment() : 0;
   const MachineSDNode *UseMN = dyn_cast<MachineSDNode>(UseNode);
   unsigned UseAlign = !UseMN->memoperands_empty()
     ? (*UseMN->memoperands_begin())->getAlignment() : 0;
-  int Latency = getOperandLatency(ItinData, DefTID, DefIdx, DefAlign,
-                                  UseTID, UseIdx, UseAlign);
+  int Latency = getOperandLatency(ItinData, DefMCID, DefIdx, DefAlign,
+                                  UseMCID, UseIdx, UseAlign);
 
   if (Latency > 1 &&
       (Subtarget.isCortexA8() || Subtarget.isCortexA9())) {
     // FIXME: Shifter op hack: no shift (i.e. [r +/- r]) or [r + r << 2]
     // variants are one cycle cheaper.
-    switch (DefTID.getOpcode()) {
+    switch (DefMCID.getOpcode()) {
     default: break;
     case ARM::LDRrs:
     case ARM::LDRBrs: {
@@ -2384,7 +2384,7 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
   }
 
   if (DefAlign < 8 && Subtarget.isCortexA9())
-    switch (DefTID.getOpcode()) {
+    switch (DefMCID.getOpcode()) {
     default: break;
     case ARM::VLD1q8Pseudo:
     case ARM::VLD1q16Pseudo:
@@ -2503,10 +2503,10 @@ int ARMBaseInstrInfo::getInstrLatency(const InstrItineraryData *ItinData,
   if (!ItinData || ItinData->isEmpty())
     return 1;
 
-  const TargetInstrDesc &TID = MI->getDesc();
-  unsigned Class = TID.getSchedClass();
+  const MCInstrDesc &MCID = MI->getDesc();
+  unsigned Class = MCID.getSchedClass();
   unsigned UOps = ItinData->Itineraries[Class].NumMicroOps;
-  if (PredCost && TID.hasImplicitDefOfPhysReg(ARM::CPSR))
+  if (PredCost && MCID.hasImplicitDefOfPhysReg(ARM::CPSR))
     // When predicated, CPSR is an additional source operand for CPSR updating
     // instructions, this apparently increases their latencies.
     *PredCost = 1;
diff --git a/lib/Target/ARM/ARMBaseInstrInfo.h b/lib/Target/ARM/ARMBaseInstrInfo.h
index 96f0e76fe6..ab93cde1c9 100644
--- a/lib/Target/ARM/ARMBaseInstrInfo.h
+++ b/lib/Target/ARM/ARMBaseInstrInfo.h
@@ -353,25 +353,25 @@ public:
                         SDNode *UseNode, unsigned UseIdx) const;
 private:
   int getVLDMDefCycle(const InstrItineraryData *ItinData,
-                      const TargetInstrDesc &DefTID,
+                      const MCInstrDesc &DefMCID,
                       unsigned DefClass,
                       unsigned DefIdx, unsigned DefAlign) const;
   int getLDMDefCycle(const InstrItineraryData *ItinData,
-                     const TargetInstrDesc &DefTID,
+                     const MCInstrDesc &DefMCID,
                      unsigned DefClass,
                      unsigned DefIdx, unsigned DefAlign) const;
   int getVSTMUseCycle(const InstrItineraryData *ItinData,
-                      const TargetInstrDesc &UseTID,
+                      const MCInstrDesc &UseMCID,
                       unsigned UseClass,
                       unsigned UseIdx, unsigned UseAlign) const;
   int getSTMUseCycle(const InstrItineraryData *ItinData,
-                     const TargetInstrDesc &UseTID,
+                     const MCInstrDesc &UseMCID,
                      unsigned UseClass,
                      unsigned UseIdx, unsigned UseAlign) const;
   int getOperandLatency(const InstrItineraryData *ItinData,
-                        const TargetInstrDesc &DefTID,
+                        const MCInstrDesc &DefMCID,
                         unsigned DefIdx, unsigned DefAlign,
-                        const TargetInstrDesc &UseTID,
+                        const MCInstrDesc &UseMCID,
                         unsigned UseIdx, unsigned UseAlign) const;
 
   int getInstrLatency(const InstrItineraryData *ItinData,
diff --git a/lib/Target/ARM/ARMBaseRegisterInfo.cpp b/lib/Target/ARM/ARMBaseRegisterInfo.cpp
index b76547653e..8f10343a62 100644
--- a/lib/Target/ARM/ARMBaseRegisterInfo.cpp
+++ b/lib/Target/ARM/ARMBaseRegisterInfo.cpp
@@ -960,7 +960,7 @@ eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
 
 int64_t ARMBaseRegisterInfo::
 getFrameIndexInstrOffset(const MachineInstr *MI, int Idx) const {
-  const TargetInstrDesc &Desc = MI->getDesc();
+  const MCInstrDesc &Desc = MI->getDesc();
   unsigned AddrMode = (Desc.TSFlags & ARMII::AddrModeMask);
   int64_t InstrOffs = 0;;
   int Scale = 1;
@@ -1110,11 +1110,11 @@ materializeFrameBaseRegister(MachineBasicBlock *MBB,
   if (Ins != MBB->end())
     DL = Ins->getDebugLoc();
 
-  const TargetInstrDesc &TID = TII.get(ADDriOpc);
+  const MCInstrDesc &MCID = TII.get(ADDriOpc);
   MachineRegisterInfo &MRI = MBB->getParent()->getRegInfo();
-  MRI.constrainRegClass(BaseReg, TII.getRegClass(TID, 0, this));
+  MRI.constrainRegClass(BaseReg, TII.getRegClass(MCID, 0, this));
 
-  MachineInstrBuilder MIB = BuildMI(*MBB, Ins, DL, TID, BaseReg)
+  MachineInstrBuilder MIB = BuildMI(*MBB, Ins, DL, MCID, BaseReg)
     .addFrameIndex(FrameIdx).addImm(Offset);
 
   if (!AFI->isThumb1OnlyFunction())
@@ -1150,7 +1150,7 @@ ARMBaseRegisterInfo::resolveFrameIndex(MachineBasicBlock::iterator I,
 
 bool ARMBaseRegisterInfo::isFrameOffsetLegal(const MachineInstr *MI,
                                              int64_t Offset) const {
-  const TargetInstrDesc &Desc = MI->getDesc();
+  const MCInstrDesc &Desc = MI->getDesc();
   unsigned AddrMode = (Desc.TSFlags & ARMII::AddrModeMask);
   unsigned i = 0;
 
diff --git a/lib/Target/ARM/ARMCodeEmitter.cpp b/lib/Target/ARM/ARMCodeEmitter.cpp
index 16d4ca599a..d6fca62775 100644
--- a/lib/Target/ARM/ARMCodeEmitter.cpp
+++ b/lib/Target/ARM/ARMCodeEmitter.cpp
@@ -96,13 +96,13 @@ namespace {
     void addPCLabel(unsigned LabelID);
     void emitPseudoInstruction(const MachineInstr &MI);
     unsigned getMachineSoRegOpValue(const MachineInstr &MI,
-                                    const TargetInstrDesc &TID,
+                                    const MCInstrDesc &MCID,
                                     const MachineOperand &MO,
                                     unsigned OpIdx);
 
     unsigned getMachineSoImmOpValue(unsigned SoImm);
     unsigned getAddrModeSBit(const MachineInstr &MI,
-                             const TargetInstrDesc &TID) const;
+                             const MCInstrDesc &MCID) const;
 
     void emitDataProcessingInstruction(const MachineInstr &MI,
                                        unsigned ImplicitRd = 0,
@@ -443,9 +443,9 @@ unsigned ARMCodeEmitter::getMachineOpValue(const MachineInstr &MI,
   else if (MO.isSymbol())
     emitExternalSymbolAddress(MO.getSymbolName(), ARM::reloc_arm_branch);
   else if (MO.isCPI()) {
-    const TargetInstrDesc &TID = MI.getDesc();
+    const MCInstrDesc &MCID = MI.getDesc();
     // For VFP load, the immediate offset is multiplied by 4.
-    unsigned Reloc =  ((TID.TSFlags & ARMII::FormMask) == ARMII::VFPLdStFrm)
+    unsigned Reloc =  ((MCID.TSFlags & ARMII::FormMask) == ARMII::VFPLdStFrm)
       ? ARM::reloc_arm_vfp_cp_entry : ARM::reloc_arm_cp_entry;
     emitConstPoolAddress(MO.getIndex(), Reloc);
   } else if (MO.isJTI())
@@ -757,7 +757,7 @@ void ARMCodeEmitter::emitMOVi2piecesInstruction(const MachineInstr &MI) {
 void ARMCodeEmitter::emitLEApcrelJTInstruction(const MachineInstr &MI) {
   // It's basically add r, pc, (LJTI - $+8)
 
-  const TargetInstrDesc &TID = MI.getDesc();
+  const MCInstrDesc &MCID = MI.getDesc();
 
   // Emit the 'add' instruction.
   unsigned Binary = 0x4 << 21;  // add: Insts{24-21} = 0b0100
@@ -766,7 +766,7 @@ void ARMCodeEmitter::emitLEApcrelJTInstruction(const MachineInstr &MI) {
   Binary |= II->getPredicate(&MI) << ARMII::CondShift;
 
   // Encode S bit if MI modifies CPSR.
-  Binary |= getAddrModeSBit(MI, TID);
+  Binary |= getAddrModeSBit(MI, MCID);
 
   // Encode Rd.
   Binary |= getMachineOpValue(MI, 0) << ARMII::RegRdShift;
@@ -912,7 +912,7 @@ void ARMCodeEmitter::emitPseudoInstruction(const MachineInstr &MI) {
 }
 
 unsigned ARMCodeEmitter::getMachineSoRegOpValue(const MachineInstr &MI,
-                                                const TargetInstrDesc &TID,
+                                                const MCInstrDesc &MCID,
                                                 const MachineOperand &MO,
                                                 unsigned OpIdx) {
   unsigned Binary = getMachineOpValue(MI, MO);
@@ -982,8 +982,8 @@ unsigned ARMCodeEmitter::getMachineSoImmOpValue(unsigned SoImm) {
 }
 
 unsigned ARMCodeEmitter::getAddrModeSBit(const MachineInstr &MI,
-                                         const TargetInstrDesc &TID) const {
-  for (unsigned i = MI.getNumOperands(), e = TID.getNumOperands(); i >= e; --i){
+                                         const MCInstrDesc &MCID) const {
+  for (unsigned i = MI.getNumOperands(), e = MCID.getNumOperands(); i >= e; --i){
     const MachineOperand &MO = MI.getOperand(i-1);
     if (MO.isReg() && MO.isDef() && MO.getReg() == ARM::CPSR)
       return 1 << ARMII::S_BitShift;
@@ -994,7 +994,7 @@ unsigned ARMCodeEmitter::getAddrModeSBit(const MachineInstr &MI,
 void ARMCodeEmitter::emitDataProcessingInstruction(const MachineInstr &MI,
                                                    unsigned ImplicitRd,
                                                    unsigned ImplicitRn) {
-  const TargetInstrDesc &TID = MI.getDesc();
+  const MCInstrDesc &MCID = MI.getDesc();
 
   // Part of binary is determined by TableGn.
   unsigned Binary = getBinaryCodeForInstr(MI);
@@ -1003,10 +1003,10 @@ void ARMCodeEmitter::emitDataProcessingInstruction(const MachineInstr &MI,
   Binary |= II->getPredicate(&MI) << ARMII::CondShift;
 
   // Encode S bit if MI modifies CPSR.
-  Binary |= getAddrModeSBit(MI, TID);
+  Binary |= getAddrModeSBit(MI, MCID);
 
   // Encode register def if there is one.
-  unsigned NumDefs = TID.getNumDefs();
+  unsigned NumDefs = MCID.getNumDefs();
   unsigned OpIdx = 0;
   if (NumDefs)
     Binary |= getMachineOpValue(MI, OpIdx++) << ARMII::RegRdShift;
@@ -1014,7 +1014,7 @@ void ARMCodeEmitter::emitDataProcessingInstruction(const MachineInstr &MI,
     // Special handling for implicit use (e.g. PC).
     Binary |= (getARMRegisterNumbering(ImplicitRd) << ARMII::RegRdShift);
 
-  if (TID.Opcode == ARM::MOVi16) {
+  if (MCID.Opcode == ARM::MOVi16) {
       // Get immediate from MI.
       unsigned Lo16 = getMovi32Value(MI, MI.getOperand(OpIdx),
                       ARM::reloc_arm_movw);
@@ -1023,14 +1023,14 @@ void ARMCodeEmitter::emitDataProcessingInstruction(const MachineInstr &MI,
       Binary |= ((Lo16 >> 12) & 0xF) << 16;
       emitWordLE(Binary);
       return;
-  } else if(TID.Opcode == ARM::MOVTi16) {
+  } else if(MCID.Opcode == ARM::MOVTi16) {
       unsigned Hi16 = (getMovi32Value(MI, MI.getOperand(OpIdx),
                        ARM::reloc_arm_movt) >> 16);
       Binary |= Hi16 & 0xFFF;
       Binary |= ((Hi16 >> 12) & 0xF) << 16;
       emitWordLE(Binary);
       return;
-  } else if ((TID.Opcode == ARM::BFC) || (TID.Opcode == ARM::BFI)) {
+  } else if ((MCID.Opcode == ARM::BFC) || (MCID.Opcode == ARM::BFI)) {
       uint32_t v = ~MI.getOperand(2).getImm();
       int32_t lsb = CountTrailingZeros_32(v);
       int32_t msb = (32 - CountLeadingZeros_32(v)) - 1;
@@ -1039,7 +1039,7 @@ void ARMCodeEmitter::emitDataProcessingInstruction(const MachineInstr &MI,
       Binary |= (lsb & 0x1F) << 7;
       emitWordLE(Binary);
       return;
-  } else if ((TID.Opcode == ARM::UBFX) || (TID.Opcode == ARM::SBFX)) {
+  } else if ((MCID.Opcode == ARM::UBFX) || (MCID.Opcode == ARM::SBFX)) {
       // Encode Rn in Instr{0-3}
       Binary |= getMachineOpValue(MI, OpIdx++);
 
@@ -1054,11 +1054,11 @@ void ARMCodeEmitter::emitDataProcessingInstruction(const MachineInstr &MI,
   }
 
   // If this is a two-address operand, skip it. e.g. MOVCCr operand 1.
-  if (TID.getOperandConstraint(OpIdx, TOI::TIED_TO) != -1)
+  if (MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO) != -1)
     ++OpIdx;
 
   // Encode first non-shifter register operand if there is one.
-  bool isUnary = TID.TSFlags & ARMII::UnaryDP;
+  bool isUnary = MCID.TSFlags & ARMII::UnaryDP;
   if (!isUnary) {
     if (ImplicitRn)
       // Special handling for implicit use (e.g. PC).
@@ -1071,9 +1071,9 @@ void ARMCodeEmitter::emitDataProcessingInstruction(const MachineInstr &MI,
 
   // Encode shifter operand.
   const MachineOperand &MO = MI.getOperand(OpIdx);
-  if ((TID.TSFlags & ARMII::FormMask) == ARMII::DPSoRegFrm) {
+  if ((MCID.TSFlags & ARMII::FormMask) == ARMII::DPSoRegFrm) {
     // Encode SoReg.
-    emitWordLE(Binary | getMachineSoRegOpValue(MI, TID, MO, OpIdx));
+    emitWordLE(Binary | getMachineSoRegOpValue(MI, MCID, MO, OpIdx));
     return;
   }
 
@@ -1092,9 +1092,9 @@ void ARMCodeEmitter::emitDataProcessingInstruction(const MachineInstr &MI,
 void ARMCodeEmitter::emitLoadStoreInstruction(const MachineInstr &MI,
                                               unsigned ImplicitRd,
                                               unsigned ImplicitRn) {
-  const TargetInstrDesc &TID = MI.getDesc();
-  unsigned Form = TID.TSFlags & ARMII::FormMask;
-  bool IsPrePost = (TID.TSFlags & ARMII::IndexModeMask) != 0;
+  const MCInstrDesc &MCID = MI.getDesc();
+  unsigned Form = MCID.TSFlags & ARMII::FormMask;
+  bool IsPrePost = (MCID.TSFlags & ARMII::IndexModeMask) != 0;
 
   // Part of binary is determined by TableGn.
   unsigned Binary = getBinaryCodeForInstr(MI);
@@ -1134,7 +1134,7 @@ void ARMCodeEmitter::emitLoadStoreInstruction(const MachineInstr &MI,
     Binary |= getMachineOpValue(MI, OpIdx++) << ARMII::RegRnShift;
 
   // If this is a two-address operand, skip it. e.g. LDR_PRE.
-  if (!Skipped && TID.getOperandConstraint(OpIdx, TOI::TIED_TO) != -1)
+  if (!Skipped && MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO) != -1)
     ++OpIdx;
 
   const MachineOperand &MO2 = MI.getOperand(OpIdx);
@@ -1170,9 +1170,9 @@ void ARMCodeEmitter::emitLoadStoreInstruction(const MachineInstr &MI,
 
 void ARMCodeEmitter::emitMiscLoadStoreInstruction(const MachineInstr &MI,
                                                   unsigned ImplicitRn) {
-  const TargetInstrDesc &TID = MI.getDesc();
-  unsigned Form = TID.TSFlags & ARMII::FormMask;
-  bool IsPrePost = (TID.TSFlags & ARMII::IndexModeMask) != 0;
+  const MCInstrDesc &MCID = MI.getDesc();
+  unsigned Form = MCID.TSFlags & ARMII::FormMask;
+  bool IsPrePost = (MCID.TSFlags & ARMII::IndexModeMask) != 0;
 
   // Part of binary is determined by TableGn.
   unsigned Binary = getBinaryCodeForInstr(MI);
@@ -1194,7 +1194,7 @@ void ARMCodeEmitter::emitMiscLoadStoreInstruction(const MachineInstr &MI,
   Binary |= getMachineOpValue(MI, OpIdx++) << ARMII::RegRdShift;
 
   // Skip LDRD and STRD's second operand.
-  if (TID.Opcode == ARM::LDRD || TID.Opcode == ARM::STRD)
+  if (MCID.Opcode == ARM::LDRD || MCID.Opcode == ARM::STRD)
     ++OpIdx;
 
   // Set second operand
@@ -1205,7 +1205,7 @@ void ARMCodeEmitter::emitMiscLoadStoreInstruction(const MachineInstr &MI,
     Binary |= getMachineOpValue(MI, OpIdx++) << ARMII::RegRnShift;
 
   // If this is a two-address operand, skip it. e.g. LDRH_POST.
-  if (!Skipped && TID.getOperandConstraint(OpIdx, TOI::TIED_TO) != -1)
+  if (!Skipped && MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO) != -1)
     ++OpIdx;
 
   const MachineOperand &MO2 = MI.getOperand(OpIdx);
@@ -1255,8 +1255,8 @@ static unsigned getAddrModeUPBits(unsigned Mode) {
 }
 
 void ARMCodeEmitter::emitLoadStoreMultipleInstruction(const MachineInstr &MI) {
-  const TargetInstrDesc &TID = MI.getDesc();
-  bool IsUpdating = (TID.TSFlags & ARMII::IndexModeMask) != 0;
+  const MCInstrDesc &MCID = MI.getDesc();
+  bool IsUpdating = (MCID.TSFlags & ARMII::IndexModeMask) != 0;
 
   // Part of binary is determined by TableGn.
   unsigned Binary = getBinaryCodeForInstr(MI);
@@ -1295,7 +1295,7 @@ void ARMCodeEmitter::emitLoadStoreMultipleInstruction(const MachineInstr &MI) {
 }
 
 void ARMCodeEmitter::emitMulFrmInstruction(const MachineInstr &MI) {
-  const TargetInstrDesc &TID = MI.getDesc();
+  const MCInstrDesc &MCID = MI.getDesc();
 
   // Part of binary is determined by TableGn.
   unsigned Binary = getBinaryCodeForInstr(MI);
@@ -1304,12 +1304,12 @@ void ARMCodeEmitter::emitMulFrmInstruction(const MachineInstr &MI) {
   Binary |= II->getPredicate(&MI) << ARMII::CondShift;
 
   // Encode S bit if MI modifies CPSR.
-  Binary |= getAddrModeSBit(MI, TID);
+  Binary |= getAddrModeSBit(MI, MCID);
 
   // 32x32->64bit operations have two destination registers. The number
   // of register definitions will tell us if that's what we're dealing with.
   unsigned OpIdx = 0;
-  if (TID.getNumDefs() == 2)
+  if (MCID.getNumDefs() == 2)
     Binary |= getMachineOpValue (MI, OpIdx++) << ARMII::RegRdLoShift;
 
   // Encode Rd
@@ -1323,16 +1323,16 @@ void ARMCodeEmitter::emitMulFrmInstruction(const MachineInstr &MI) {
 
   // Many multiple instructions (e.g. MLA) have three src operands. Encode
   // it as Rn (for multiply, that's in the same offset as RdLo.
-  if (TID.getNumOperands() > OpIdx &&
-      !TID.OpInfo[OpIdx].isPredicate() &&
-      !TID.OpInfo[OpIdx].isOptionalDef())
+  if (MCID.getNumOperands() > OpIdx &&
+      !MCID.OpInfo[OpIdx].isPredicate() &&
+      !MCID.OpInfo[OpIdx].isOptionalDef())
     Binary |= getMachineOpValue(MI, OpIdx) << ARMII::RegRdLoShift;
 
   emitWordLE(Binary);
 }
 
 void ARMCodeEmitter::emitExtendInstruction(const MachineInstr &MI) {
-  const TargetInstrDesc &TID = MI.getDesc();
+  const MCInstrDesc &MCID = MI.getDesc();
 
   // Part of binary is determined by TableGn.
   unsigned Binary = getBinaryCodeForInstr(MI);
@@ -1361,15 +1361,15 @@ void ARMCodeEmitter::emitExtendInstruction(const MachineInstr &MI) {
 
   // Encode rot imm (0, 8, 16, or 24) if it has a rotate immediate operand.
   if (MI.getOperand(OpIdx).isImm() &&
-      !TID.OpInfo[OpIdx].isPredicate() &&
-      !TID.OpInfo[OpIdx].isOptionalDef())
+      !MCID.OpInfo[OpIdx].isPredicate() &&
+      !MCID.OpInfo[OpIdx].isOptionalDef())
     Binary |= (getMachineOpValue(MI, OpIdx) / 8) << ARMII::ExtRotImmShift;
 
   emitWordLE(Binary);
 }
 
 void ARMCodeEmitter::emitMiscArithInstruction(const MachineInstr &MI) {
-  const TargetInstrDesc &TID = MI.getDesc();
+  const MCInstrDesc &MCID = MI.getDesc();
 
   // Part of binary is determined by TableGn.
   unsigned Binary = getBinaryCodeForInstr(MI);
@@ -1378,7 +1378,7 @@ void ARMCodeEmitter::emitMiscArithInstruction(const MachineInstr &MI) {
   Binary |= II->getPredicate(&MI) << ARMII::CondShift;
 
   // PKH instructions are finished at this point
-  if (TID.Opcode == ARM::PKHBT || TID.Opcode == ARM::PKHTB) {
+  if (MCID.Opcode == ARM::PKHBT || MCID.Opcode == ARM::PKHTB) {
     emitWordLE(Binary);
     return;
   }
@@ -1389,9 +1389,9 @@ void ARMCodeEmitter::emitMiscArithInstruction(const MachineInstr &MI) {
   Binary |= getMachineOpValue(MI, OpIdx++) << ARMII::RegRdShift;
 
   const MachineOperand &MO = MI.getOperand(OpIdx++);
-  if (OpIdx == TID.getNumOperands() ||
-      TID.OpInfo[OpIdx].isPredicate() ||
-      TID.OpInfo[OpIdx].isOptionalDef()) {
+  if (OpIdx == MCID.getNumOperands() ||
+      MCID.OpInfo[OpIdx].isPredicate() ||
+      MCID.OpInfo[OpIdx].isOptionalDef()) {
     // Encode Rm and it's done.
     Binary |= getMachineOpValue(MI, MO);
     emitWordLE(Binary);
@@ -1406,7 +1406,7 @@ void ARMCodeEmitter::emitMiscArithInstruction(const MachineInstr &MI) {
 
   // Encode shift_imm.
   unsigned ShiftAmt = MI.getOperand(OpIdx).getImm();
-  if (TID.Opcode == ARM::PKHTB) {
+  if (MCID.Opcode == ARM::PKHTB) {
     assert(ShiftAmt != 0 && "PKHTB shift_imm is 0!");
     if (ShiftAmt == 32)
       ShiftAmt = 0;
@@ -1418,7 +1418,7 @@ void ARMCodeEmitter::emitMiscArithInstruction(const MachineInstr &MI) {
 }
 
 void ARMCodeEmitter::emitSaturateInstruction(const MachineInstr &MI) {
-  const TargetInstrDesc &TID = MI.getDesc();
+  const MCInstrDesc &MCID = MI.getDesc();
 
   // Part of binary is determined by TableGen.
   unsigned Binary = getBinaryCodeForInstr(MI);
@@ -1431,11 +1431,11 @@ void ARMCodeEmitter::emitSaturateInstruction(const MachineInstr &MI) {
 
   // Encode saturate bit position.
   unsigned Pos = MI.getOperand(1).getImm();
-  if (TID.Opcode == ARM::SSAT || TID.Opcode == ARM::SSAT16)
+  if (MCID.Opcode == ARM::SSAT || MCID.Opcode == ARM::SSAT16)
     Pos -= 1;
   assert((Pos < 16 || (Pos < 32 &&
-                       TID.Opcode != ARM::SSAT16 &&
-                       TID.Opcode != ARM::USAT16)) &&
+                       MCID.Opcode != ARM::SSAT16 &&
+                       MCID.Opcode != ARM::USAT16)) &&
          "saturate bit position out of range");
   Binary |= Pos << 16;
 
@@ -1443,7 +1443,7 @@ void ARMCodeEmitter::emitSaturateInstruction(const MachineInstr &MI) {
   Binary |= getMachineOpValue(MI, 2);
 
   // Encode shift_imm.
-  if (TID.getNumOperands() == 4) {
+  if (MCID.getNumOperands() == 4) {
     unsigned ShiftOp = MI.getOperand(3).getImm();
     ARM_AM::ShiftOpc Opc = ARM_AM::getSORegShOp(ShiftOp);
     if (Opc == ARM_AM::asr)
@@ -1459,9 +1459,9 @@ void ARMCodeEmitter::emitSaturateInstruction(const MachineInstr &MI) {
 }
 
 void ARMCodeEmitter::emitBranchInstruction(const MachineInstr &MI) {
-  const TargetInstrDesc &TID = MI.getDesc();
+  const MCInstrDesc &MCID = MI.getDesc();
 
-  if (TID.Opcode == ARM::TPsoft) {
+  if (MCID.Opcode == ARM::TPsoft) {
     llvm_unreachable("ARM::TPsoft FIXME"); // FIXME
   }
 
@@ -1498,20 +1498,20 @@ void ARMCodeEmitter::emitInlineJumpTable(unsigned JTIndex) {
 }
 
 void ARMCodeEmitter::emitMiscBranchInstruction(const MachineInstr &MI) {
-  const TargetInstrDesc &TID = MI.getDesc();
+  const MCInstrDesc &MCID = MI.getDesc();
 
   // Handle jump tables.
-  if (TID.Opcode == ARM::BR_JTr || TID.Opcode == ARM::BR_JTadd) {
+  if (MCID.Opcode == ARM::BR_JTr || MCID.Opcode == ARM::BR_JTadd) {
     // First emit a ldr pc, [] instruction.
     emitDataProcessingInstruction(MI, ARM::PC);
 
     // Then emit the inline jump table.
     unsigned JTIndex =
-      (TID.Opcode == ARM::BR_JTr)
+      (MCID.Opcode == ARM::BR_JTr)
       ? MI.getOperand(1).getIndex() : MI.getOperand(2).getIndex();
     emitInlineJumpTable(JTIndex);
     return;
-  } else if (TID.Opcode == ARM::BR_JTm) {
+  } else if (MCID.Opcode == ARM::BR_JTm) {
     // First emit a ldr pc, [] instruction.
     emitLoadStoreInstruction(MI, ARM::PC);
 
@@ -1526,7 +1526,7 @@ void ARMCodeEmitter::emitMiscBranchInstruction(const MachineInstr &MI) {
   // Set the conditional execution predicate
   Binary |= II->getPredicate(&MI) << ARMII::CondShift;
 
-  if (TID.Opcode == ARM::BX_RET || TID.Opcode == ARM::MOVPCLR)
+  if (MCID.Opcode == ARM::BX_RET || MCID.Opcode == ARM::MOVPCLR)
     // The return register is LR.
     Binary |= getARMRegisterNumbering(ARM::LR);
   else
@@ -1579,7 +1579,7 @@ static unsigned encodeVFPRm(const MachineInstr &MI, unsigned OpIdx) {
 }
 
 void ARMCodeEmitter::emitVFPArithInstruction(const MachineInstr &MI) {
-  const TargetInstrDesc &TID = MI.getDesc();
+  const MCInstrDesc &MCID = MI.getDesc();
 
   // Part of binary is determined by TableGn.
   unsigned Binary = getBinaryCodeForInstr(MI);
@@ -1596,16 +1596,16 @@ void ARMCodeEmitter::emitVFPArithInstruction(const MachineInstr &MI) {
   Binary |= encodeVFPRd(MI, OpIdx++);
 
   // If this is a two-address operand, skip it, e.g. FMACD.
-  if (TID.getOperandConstraint(OpIdx, TOI::TIED_TO) != -1)
+  if (MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO) != -1)
     ++OpIdx;
 
   // Encode Dn / Sn.
-  if ((TID.TSFlags & ARMII::FormMask) == ARMII::VFPBinaryFrm)
+  if ((MCID.TSFlags & ARMII::FormMask) == ARMII::VFPBinaryFrm)
     Binary |= encodeVFPRn(MI, OpIdx++);
 
-  if (OpIdx == TID.getNumOperands() ||
-      TID.OpInfo[OpIdx].isPredicate() ||
-      TID.OpInfo[OpIdx].isOptionalDef()) {
+  if (OpIdx == MCID.getNumOperands() ||
+      MCID.OpInfo[OpIdx].isPredicate() ||
+      MCID.OpInfo[OpIdx].isOptionalDef()) {
     // FCMPEZD etc. has only one operand.
     emitWordLE(Binary);
     return;
@@ -1618,8 +1618,8 @@ void ARMCodeEmitter::emitVFPArithInstruction(const MachineInstr &MI) {
 }
 
 void ARMCodeEmitter::emitVFPConversionInstruction(const MachineInstr &MI) {
-  const TargetInstrDesc &TID = MI.getDesc();
-  unsigned Form = TID.TSFlags & ARMII::FormMask;
+  const MCInstrDesc &MCID = MI.getDesc();
+  unsigned Form = MCID.TSFlags & ARMII::FormMask;
 
   // Part of binary is determined by TableGn.
   unsigned Binary = getBinaryCodeForInstr(MI);
@@ -1709,8 +1709,8 @@ void ARMCodeEmitter::emitVFPLoadStoreInstruction(const MachineInstr &MI) {
 
 void
 ARMCodeEmitter::emitVFPLoadStoreMultipleInstruction(const MachineInstr &MI) {
-  const TargetInstrDesc &TID = MI.getDesc();
-  bool IsUpdating = (TID.TSFlags & ARMII::IndexModeMask) != 0;
+  const MCInstrDesc &MCID = MI.getDesc();
+  bool IsUpdating = (MCID.TSFlags & ARMII::IndexModeMask) != 0;
 
   // Part of binary is determined by TableGn.
   unsigned Binary = getBinaryCodeForInstr(MI);
@@ -1795,8 +1795,8 @@ void ARMCodeEmitter::emitNEONLaneInstruction(const MachineInstr &MI) {
   unsigned Binary = getBinaryCodeForInstr(MI);
 
   unsigned RegTOpIdx, RegNOpIdx, LnOpIdx;
-  const TargetInstrDesc &TID = MI.getDesc();
-  if ((TID.TSFlags & ARMII::FormMask) == ARMII::NGetLnFrm) {
+  const MCInstrDesc &MCID = MI.getDesc();
+  if ((MCID.TSFlags & ARMII::FormMask) == ARMII::NGetLnFrm) {
     RegTOpIdx = 0;
     RegNOpIdx = 1;
     LnOpIdx = 2;
@@ -1863,12 +1863,12 @@ void ARMCodeEmitter::emitNEON1RegModImmInstruction(const MachineInstr &MI) {
 }
 
 void ARMCodeEmitter::emitNEON2RegInstruction(const MachineInstr &MI) {
-  const TargetInstrDesc &TID = MI.getDesc();
+  const MCInstrDesc &MCID = MI.getDesc();
   unsigned Binary = getBinaryCodeForInstr(MI);
   // Destination register is encoded in Dd; source register in Dm.
   unsigned OpIdx = 0;
   Binary |= encodeNEONRd(MI, OpIdx++);
-  if (TID.getOperandConstraint(OpIdx, TOI::TIED_TO) != -1)
+  if (MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO) != -1)
     ++OpIdx;
   Binary |= encodeNEONRm(MI, OpIdx);
   if (IsThumb)
@@ -1878,15 +1878,15 @@ void ARMCodeEmitter::emitNEON2RegInstruction(const MachineInstr &MI) {
 }
 
 void ARMCodeEmitter::emitNEON3RegInstruction(const MachineInstr &MI) {
-  const TargetInstrDesc &TID = MI.getDesc();
+  const MCInstrDesc &MCID = MI.getDesc();
   unsigned Binary = getBinaryCodeForInstr(MI);
   // Destination register is encoded in Dd; source registers in Dn and Dm.
   unsigned OpIdx = 0;
   Binary |= encodeNEONRd(MI, OpIdx++);
-  if (TID.getOperandConstraint(OpIdx, TOI::TIED_TO) != -1)
+  if (MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO) != -1)
     ++OpIdx;
   Binary |= encodeNEONRn(MI, OpIdx++);
-  if (TID.getOperandConstraint(OpIdx, TOI::TIED_TO) != -1)
+  if (MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO) != -1)
     ++OpIdx;
   Binary |= encodeNEONRm(MI, OpIdx);
   if (IsThumb)
diff --git a/lib/Target/ARM/ARMConstantIslandPass.cpp b/lib/Target/ARM/ARMConstantIslandPass.cpp
index baf95a33dd..309caee42b 100644
--- a/lib/Target/ARM/ARMConstantIslandPass.cpp
+++ b/lib/Target/ARM/ARMConstantIslandPass.cpp
@@ -1692,9 +1692,9 @@ bool ARMConstantIslands::OptimizeThumb2JumpTables(MachineFunction &MF) {
   const std::vector<MachineJumpTableEntry> &JT = MJTI->getJumpTables();
   for (unsigned i = 0, e = T2JumpTables.size(); i != e; ++i) {
     MachineInstr *MI = T2JumpTables[i];
-    const TargetInstrDesc &TID = MI->getDesc();
-    unsigned NumOps = TID.getNumOperands();
-    unsigned JTOpIdx = NumOps - (TID.isPredicable() ? 3 : 2);
+    const MCInstrDesc &MCID = MI->getDesc();
+    unsigned NumOps = MCID.getNumOperands();
+    unsigned JTOpIdx = NumOps - (MCID.isPredicable() ? 3 : 2);
     MachineOperand JTOP = MI->getOperand(JTOpIdx);
     unsigned JTI = JTOP.getIndex();
     assert(JTI < JT.size());
@@ -1815,9 +1815,9 @@ bool ARMConstantIslands::ReorderThumb2JumpTables(MachineFunction &MF) {
   const std::vector<MachineJumpTableEntry> &JT = MJTI->getJumpTables();
   for (unsigned i = 0, e = T2JumpTables.size(); i != e; ++i) {
     MachineInstr *MI = T2JumpTables[i];
-    const TargetInstrDesc &TID = MI->getDesc();
-    unsigned NumOps = TID.getNumOperands();
-    unsigned JTOpIdx = NumOps - (TID.isPredicable() ? 3 : 2);
+    const MCInstrDesc &MCID = MI->getDesc();
+    unsigned NumOps = MCID.getNumOperands();
+    unsigned JTOpIdx = NumOps - (MCID.isPredicable() ? 3 : 2);
     MachineOperand JTOP = MI->getOperand(JTOpIdx);
     unsigned JTI = JTOP.getIndex();
     assert(JTI < JT.size());
diff --git a/lib/Target/ARM/ARMExpandPseudoInsts.cpp b/lib/Target/ARM/ARMExpandPseudoInsts.cpp
index b6b3c75943..71b33d3736 100644
--- a/lib/Target/ARM/ARMExpandPseudoInsts.cpp
+++ b/lib/Target/ARM/ARMExpandPseudoInsts.cpp
@@ -68,7 +68,7 @@ namespace {
 void ARMExpandPseudo::TransferImpOps(MachineInstr &OldMI,
                                      MachineInstrBuilder &UseMI,
                                      MachineInstrBuilder &DefMI) {
-  const TargetInstrDesc &Desc = OldMI.getDesc();
+  const MCInstrDesc &Desc = OldMI.getDesc();
   for (unsigned i = Desc.getNumOperands(), e = OldMI.getNumOperands();
        i != e; ++i) {
     const MachineOperand &MO = OldMI.getOperand(i);
diff --git a/lib/Target/ARM/ARMFastISel.cpp b/lib/Target/ARM/ARMFastISel.cpp
index 5cf73c479a..e0409e921c 100644
--- a/lib/Target/ARM/ARMFastISel.cpp
+++ b/lib/Target/ARM/ARMFastISel.cpp
@@ -219,8 +219,8 @@ class ARMFastISel : public FastISel {
 // we don't care about implicit defs here, just places we'll need to add a
 // default CCReg argument. Sets CPSR if we're setting CPSR instead of CCR.
 bool ARMFastISel::DefinesOptionalPredicate(MachineInstr *MI, bool *CPSR) {
-  const TargetInstrDesc &TID = MI->getDesc();
-  if (!TID.hasOptionalDef())
+  const MCInstrDesc &MCID = MI->getDesc();
+  if (!MCID.hasOptionalDef())
     return false;
 
   // Look to see if our OptionalDef is defining CPSR or CCR.
@@ -234,15 +234,15 @@ bool ARMFastISel::DefinesOptionalPredicate(MachineInstr *MI, bool *CPSR) {
 }
 
 bool ARMFastISel::isARMNEONPred(const MachineInstr *MI) {
-  const TargetInstrDesc &TID = MI->getDesc();
+  const MCInstrDesc &MCID = MI->getDesc();
 
   // If we're a thumb2 or not NEON function we were handled via isPredicable.
-  if ((TID.TSFlags & ARMII::DomainMask) != ARMII::DomainNEON ||
+  if ((MCID.TSFlags & ARMII::DomainMask) != ARMII::DomainNEON ||
        AFI->isThumb2Function())
     return false;
 
-  for (unsigned i = 0, e = TID.getNumOperands(); i != e; ++i)
-    if (TID.OpInfo[i].isPredicate())
+  for (unsigned i = 0, e = MCID.getNumOperands(); i != e; ++i)
+    if (MCID.OpInfo[i].isPredicate())
       return true;
 
   return false;
@@ -278,7 +278,7 @@ ARMFastISel::AddOptionalDefs(const MachineInstrBuilder &MIB) {
 unsigned ARMFastISel::FastEmitInst_(unsigned MachineInstOpcode,
                                     const TargetRegisterClass* RC) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg));
   return ResultReg;
@@ -288,7 +288,7 @@ unsigned ARMFastISel::FastEmitInst_r(unsigned MachineInstOpcode,
                                      const TargetRegisterClass *RC,
                                      unsigned Op0, bool Op0IsKill) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   if (II.getNumDefs() >= 1)
     AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg)
@@ -308,7 +308,7 @@ unsigned ARMFastISel::FastEmitInst_rr(unsigned MachineInstOpcode,
                                       unsigned Op0, bool Op0IsKill,
                                       unsigned Op1, bool Op1IsKill) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   if (II.getNumDefs() >= 1)
     AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg)
@@ -331,7 +331,7 @@ unsigned ARMFastISel::FastEmitInst_rrr(unsigned MachineInstOpcode,
                                        unsigned Op1, bool Op1IsKill,
                                        unsigned Op2, bool Op2IsKill) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   if (II.getNumDefs() >= 1)
     AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg)
@@ -355,7 +355,7 @@ unsigned ARMFastISel::FastEmitInst_ri(unsigned MachineInstOpcode,
                                       unsigned Op0, bool Op0IsKill,
                                       uint64_t Imm) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   if (II.getNumDefs() >= 1)
     AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg)
@@ -377,7 +377,7 @@ unsigned ARMFastISel::FastEmitInst_rf(unsigned MachineInstOpcode,
                                       unsigned Op0, bool Op0IsKill,
                                       const ConstantFP *FPImm) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   if (II.getNumDefs() >= 1)
     AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg)
@@ -400,7 +400,7 @@ unsigned ARMFastISel::FastEmitInst_rri(unsigned MachineInstOpcode,
                                        unsigned Op1, bool Op1IsKill,
                                        uint64_t Imm) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   if (II.getNumDefs() >= 1)
     AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg)
@@ -423,7 +423,7 @@ unsigned ARMFastISel::FastEmitInst_i(unsigned MachineInstOpcode,
                                      const TargetRegisterClass *RC,
                                      uint64_t Imm) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   if (II.getNumDefs() >= 1)
     AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg)
@@ -442,7 +442,7 @@ unsigned ARMFastISel::FastEmitInst_ii(unsigned MachineInstOpcode,
                                       const TargetRegisterClass *RC,
                                       uint64_t Imm1, uint64_t Imm2) {
   unsigned ResultReg = createResultReg(RC);
-  const TargetInstrDesc &II = TII.get(MachineInstOpcode);
+  const MCInstrDesc &II = TII.get(MachineInstOpcode);
 
   if (II.getNumDefs() >= 1)
     AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II, ResultReg)
diff --git a/lib/Target/ARM/ARMHazardRecognizer.cpp b/lib/Target/ARM/ARMHazardRecognizer.cpp
index 517bba8cee..787f6a2791 100644
--- a/lib/Target/ARM/ARMHazardRecognizer.cpp
+++ b/lib/Target/ARM/ARMHazardRecognizer.cpp
@@ -19,11 +19,11 @@ using namespace llvm;
 static bool hasRAWHazard(MachineInstr *DefMI, MachineInstr *MI,
                          const TargetRegisterInfo &TRI) {
   // FIXME: Detect integer instructions properly.
-  const TargetInstrDesc &TID = MI->getDesc();
-  unsigned Domain = TID.TSFlags & ARMII::DomainMask;
-  if (TID.mayStore())
+  const MCInstrDesc &MCID = MI->getDesc();
+  unsigned Domain = MCID.TSFlags & ARMII::DomainMask;
+  if (MCID.mayStore())
     return false;
-  unsigned Opcode = TID.getOpcode();
+  unsigned Opcode = MCID.getOpcode();
   if (Opcode == ARM::VMOVRS || Opcode == ARM::VMOVRRD)
     return false;
   if ((Domain & ARMII::DomainVFP) || (Domain & ARMII::DomainNEON))
@@ -43,15 +43,15 @@ ARMHazardRecognizer::getHazardType(SUnit *SU, int Stalls) {
 
     // Look for special VMLA / VMLS hazards. A VMUL / VADD / VSUB following
     // a VMLA / VMLS will cause 4 cycle stall.
-    const TargetInstrDesc &TID = MI->getDesc();
-    if (LastMI && (TID.TSFlags & ARMII::DomainMask) != ARMII::DomainGeneral) {
+    const MCInstrDesc &MCID = MI->getDesc();
+    if (LastMI && (MCID.TSFlags & ARMII::DomainMask) != ARMII::DomainGeneral) {
       MachineInstr *DefMI = LastMI;
-      const TargetInstrDesc &LastTID = LastMI->getDesc();
+      const MCInstrDesc &LastMCID = LastMI->getDesc();
       // Skip over one non-VFP / NEON instruction.
-      if (!LastTID.isBarrier() &&
+      if (!LastMCID.isBarrier() &&
           // On A9, AGU and NEON/FPU are muxed.
-          !(STI.isCortexA9() && (LastTID.mayLoad() || LastTID.mayStore())) &&
-          (LastTID.TSFlags & ARMII::DomainMask) == ARMII::DomainGeneral) {
+          !(STI.isCortexA9() && (LastMCID.mayLoad() || LastMCID.mayStore())) &&
+          (LastMCID.TSFlags & ARMII::DomainMask) == ARMII::DomainGeneral) {
         MachineBasicBlock::iterator I = LastMI;
         if (I != LastMI->getParent()->begin()) {
           I = llvm::prior(I);
diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp
index 6f57a04399..2c9481b86c 100644
--- a/lib/Target/ARM/ARMISelDAGToDAG.cpp
+++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp
@@ -329,10 +329,10 @@ bool ARMDAGToDAGISel::hasNoVMLxHazardUse(SDNode *N) const {
   if (Use->getOpcode() == ISD::CopyToReg)
     return true;
   if (Use->isMachineOpcode()) {
-    const TargetInstrDesc &TID = TII->get(Use->getMachineOpcode());
-    if (TID.mayStore())
+    const MCInstrDesc &MCID = TII->get(Use->getMachineOpcode());
+    if (MCID.mayStore())
       return true;
-    unsigned Opcode = TID.getOpcode();
+    unsigned Opcode = MCID.getOpcode();
     if (Opcode == ARM::VMOVRS || Opcode == ARM::VMOVRRD)
       return true;
     // vmlx feeding into another vmlx. We actually want to unfold
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 9c01446ff7..b0425f1f56 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -977,12 +977,12 @@ Sched::Preference ARMTargetLowering::getSchedulingPreference(SDNode *N) const {
   // Load are scheduled for latency even if there instruction itinerary
   // is not available.
   const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
-  const TargetInstrDesc &TID = TII->get(N->getMachineOpcode());
+  const MCInstrDesc &MCID = TII->get(N->getMachineOpcode());
 
-  if (TID.getNumDefs() == 0)
+  if (MCID.getNumDefs() == 0)
     return Sched::RegPressure;
   if (!Itins->isEmpty() &&
-      Itins->getOperandCycle(TID.getSchedClass(), 0) > 2)
+      Itins->getOperandCycle(MCID.getSchedClass(), 0) > 2)
     return Sched::Latency;
 
   return Sched::RegPressure;
diff --git a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
index e4ec681d94..c8433827de 100644
--- a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
+++ b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
@@ -1461,19 +1461,19 @@ static bool IsSafeAndProfitableToMove(bool isLd, unsigned Base,
   while (++I != E) {
     if (I->isDebugValue() || MemOps.count(&*I))
       continue;
-    const TargetInstrDesc &TID = I->getDesc();
-    if (TID.isCall() || TID.isTerminator() || I->hasUnmodeledSideEffects())
+    const MCInstrDesc &MCID = I->getDesc();
+    if (MCID.isCall() || MCID.isTerminator() || I->hasUnmodeledSideEffects())
       return false;
-    if (isLd && TID.mayStore())
+    if (isLd && MCID.mayStore())
       return false;
     if (!isLd) {
-      if (TID.mayLoad())
+      if (MCID.mayLoad())
         return false;
       // It's not safe to move the first 'str' down.
       // str r1, [r0]
       // strh r5, [r0]
       // str r4, [r0, #+4]
-      if (TID.mayStore())
+      if (MCID.mayStore())
         return false;
     }
     for (unsigned j = 0, NumOps = I->getNumOperands(); j != NumOps; ++j) {
@@ -1672,14 +1672,14 @@ bool ARMPreAllocLoadStoreOpt::RescheduleOps(MachineBasicBlock *MBB,
           Ops.pop_back();
           Ops.pop_back();
 
-          const TargetInstrDesc &TID = TII->get(NewOpc);
-          const TargetRegisterClass *TRC = TII->getRegClass(TID, 0, TRI);
+          const MCInstrDesc &MCID = TII->get(NewOpc);
+          const TargetRegisterClass *TRC = TII->getRegClass(MCID, 0, TRI);
           MRI->constrainRegClass(EvenReg, TRC);
           MRI->constrainRegClass(OddReg, TRC);
 
           // Form the pair instruction.
           if (isLd) {
-            MachineInstrBuilder MIB = BuildMI(*MBB, InsertPos, dl, TID)
+            MachineInstrBuilder MIB = BuildMI(*MBB, InsertPos, dl, MCID)
               .addReg(EvenReg, RegState::Define)
               .addReg(OddReg, RegState::Define)
               .addReg(BaseReg);
@@ -1691,7 +1691,7 @@ bool ARMPreAllocLoadStoreOpt::RescheduleOps(MachineBasicBlock *MBB,
             MIB.addImm(Offset).addImm(Pred).addReg(PredReg);
             ++NumLDRDFormed;
           } else {
-            MachineInstrBuilder MIB = BuildMI(*MBB, InsertPos, dl, TID)
+            MachineInstrBuilder MIB = BuildMI(*MBB, InsertPos, dl, MCID)
               .addReg(EvenReg)
               .addReg(OddReg)
               .addReg(BaseReg);
@@ -1742,8 +1742,8 @@ ARMPreAllocLoadStoreOpt::RescheduleLoadStoreInstrs(MachineBasicBlock *MBB) {
   while (MBBI != E) {
     for (; MBBI != E; ++MBBI) {
       MachineInstr *MI = MBBI;
-      const TargetInstrDesc &TID = MI->getDesc();
-      if (TID.isCall() || TID.isTerminator()) {
+      const MCInstrDesc &MCID = MI->getDesc();
+      if (MCID.isCall() || MCID.isTerminator()) {
         // Stop at barriers.
         ++MBBI;
         break;
diff --git a/lib/Target/ARM/ARMMCCodeEmitter.cpp b/lib/Target/ARM/ARMMCCodeEmitter.cpp
index c5f727d606..4fcba11e5d 100644
--- a/lib/Target/ARM/ARMMCCodeEmitter.cpp
+++ b/lib/Target/ARM/ARMMCCodeEmitter.cpp
@@ -1274,7 +1274,7 @@ void ARMMCCodeEmitter::
 EncodeInstruction(const MCInst &MI, raw_ostream &OS,
                   SmallVectorImpl<MCFixup> &Fixups) const {
   // Pseudo instructions don't get encoded.
-  const TargetInstrDesc &Desc = TII.get(MI.getOpcode());
+  const MCInstrDesc &Desc = TII.get(MI.getOpcode());
   uint64_t TSFlags = Desc.TSFlags;
   if ((TSFlags & ARMII::FormMask) == ARMII::Pseudo)
     return;
diff --git a/lib/Target/ARM/Disassembler/ARMDisassemblerCore.cpp b/lib/Target/ARM/Disassembler/ARMDisassemblerCore.cpp
index 271ca8c72f..851b2d0cf8 100644
--- a/lib/Target/ARM/Disassembler/ARMDisassemblerCore.cpp
+++ b/lib/Target/ARM/Disassembler/ARMDisassemblerCore.cpp
@@ -24,8 +24,8 @@
 //#define DEBUG(X) do { X; } while (0)
 
 /// ARMGenInstrInfo.inc - ARMGenInstrInfo.inc contains the static const
-/// TargetInstrDesc ARMInsts[] definition and the TargetOperandInfo[]'s
-/// describing the operand info for each ARMInsts[i].
+/// MCInstrDesc ARMInsts[] definition and the MCOperandInfo[]'s describing the
+/// operand info for each ARMInsts[i].
 ///
 /// Together with an instruction's encoding format, we can take advantage of the
 /// NumOperands and the OpInfo fields of the target instruction description in
@@ -46,10 +46,10 @@
 ///   dag DefaultOps = (ops (i32 14), (i32 zero_reg));
 /// }
 ///
-/// which is manifested by the TargetOperandInfo[] of:
+/// which is manifested by the MCOperandInfo[] of:
 ///
-/// { 0, 0|(1<<TOI::Predicate), 0 },
-/// { ARM::CCRRegClassID, 0|(1<<TOI::Predicate), 0 }
+/// { 0, 0|(1<<MCOI::Predicate), 0 },
+/// { ARM::CCRRegClassID, 0|(1<<MCOI::Predicate), 0 }
 ///
 /// So the first predicate MCOperand corresponds to the immediate part of the
 /// ARM condition field (Inst{31-28}), and the second predicate MCOperand
@@ -66,9 +66,9 @@
 ///   dag DefaultOps = (ops (i32 zero_reg));
 /// }
 ///
-/// which is manifested by the one TargetOperandInfo of:
+/// which is manifested by the one MCOperandInfo of:
 ///
-/// { ARM::CCRRegClassID, 0|(1<<TOI::OptionalDef), 0 }
+/// { ARM::CCRRegClassID, 0|(1<<MCOI::OptionalDef), 0 }
 ///
 /// And this maps to one MCOperand with the regsiter kind of ARM::CPSR.
 #include "ARMGenInstrInfo.inc"
@@ -588,9 +588,9 @@ static bool BadRegsMulFrm(unsigned Opcode, uint32_t insn) {
 static bool DisassembleMulFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  unsigned short NumDefs = TID.getNumDefs();
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  unsigned short NumDefs = MCID.getNumDefs();
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
@@ -739,9 +739,9 @@ static bool DisassembleCoprocessor(MCInst &MI, unsigned Opcode, uint32_t insn,
     if (PW) {
       MI.addOperand(MCOperand::CreateReg(0));
       ARM_AM::AddrOpc AddrOpcode = getUBit(insn) ? ARM_AM::add : ARM_AM::sub;
-      const TargetInstrDesc &TID = ARMInsts[Opcode];
+      const MCInstrDesc &MCID = ARMInsts[Opcode];
       unsigned IndexMode =
-                  (TID.TSFlags & ARMII::IndexModeMask) >> ARMII::IndexModeShift;
+                 (MCID.TSFlags & ARMII::IndexModeMask) >> ARMII::IndexModeShift;
       unsigned Offset = ARM_AM::getAM2Opc(AddrOpcode, slice(insn, 7, 0) << 2,
                                           ARM_AM::no_shift, IndexMode);
       MI.addOperand(MCOperand::CreateImm(Offset));
@@ -802,7 +802,7 @@ static bool DisassembleBrFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
   if (CoprocessorOpcode(Opcode))
     return DisassembleCoprocessor(MI, Opcode, insn, NumOps, NumOpsAdded, B);
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   if (!OpInfo) return false;
 
   // MRS and MRSsys take one GPR reg Rd.
@@ -901,7 +901,7 @@ static bool DisassembleBrFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleBrMiscFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   if (!OpInfo) return false;
 
   unsigned &OpIdx = NumOpsAdded;
@@ -976,10 +976,10 @@ static bool BadRegsDPFrm(unsigned Opcode, uint32_t insn) {
 static bool DisassembleDPFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  unsigned short NumDefs = TID.getNumDefs();
-  bool isUnary = isUnaryDP(TID.TSFlags);
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  unsigned short NumDefs = MCID.getNumDefs();
+  bool isUnary = isUnaryDP(MCID.TSFlags);
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
@@ -1041,7 +1041,7 @@ static bool DisassembleDPFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
   }
 
   // If this is a two-address operand, skip it, e.g., MOVCCr operand 1.
-  if (isUnary && (TID.getOperandConstraint(OpIdx, TOI::TIED_TO) != -1)) {
+  if (isUnary && (MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO) != -1)) {
     MI.addOperand(MCOperand::CreateReg(0));
     ++OpIdx;
   }
@@ -1089,10 +1089,10 @@ static bool DisassembleDPFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleDPSoRegFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  unsigned short NumDefs = TID.getNumDefs();
-  bool isUnary = isUnaryDP(TID.TSFlags);
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  unsigned short NumDefs = MCID.getNumDefs();
+  bool isUnary = isUnaryDP(MCID.TSFlags);
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
@@ -1118,7 +1118,7 @@ static bool DisassembleDPSoRegFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
   }
 
   // If this is a two-address operand, skip it, e.g., MOVCCs operand 1.
-  if (isUnary && (TID.getOperandConstraint(OpIdx, TOI::TIED_TO) != -1)) {
+  if (isUnary && (MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO) != -1)) {
     MI.addOperand(MCOperand::CreateReg(0));
     ++OpIdx;
   }
@@ -1244,17 +1244,17 @@ static bool BadRegsLdStFrm(unsigned Opcode, uint32_t insn, bool Store, bool WBac
 static bool DisassembleLdStFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, bool isStore, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  bool isPrePost = isPrePostLdSt(TID.TSFlags);
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  bool isPrePost = isPrePostLdSt(MCID.TSFlags);
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   if (!OpInfo) return false;
 
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
 
-  assert(((!isStore && TID.getNumDefs() > 0) ||
-          (isStore && (TID.getNumDefs() == 0 || isPrePost)))
+  assert(((!isStore && MCID.getNumDefs() > 0) ||
+          (isStore && (MCID.getNumDefs() == 0 || isPrePost)))
          && "Invalid arguments");
 
   // Operand 0 of a pre- and post-indexed store is the address base writeback.
@@ -1291,7 +1291,7 @@ static bool DisassembleLdStFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
 
   assert(OpInfo[OpIdx].RegClass == ARM::GPRRegClassID &&
          "Reg operand expected");
-  assert((!isPrePost || (TID.getOperandConstraint(OpIdx, TOI::TIED_TO) != -1))
+  assert((!isPrePost || (MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO) != -1))
          && "Index mode or tied_to operand expected");
   MI.addOperand(MCOperand::CreateReg(getRegisterEnum(B, ARM::GPRRegClassID,
                                                      decodeRn(insn))));
@@ -1308,7 +1308,7 @@ static bool DisassembleLdStFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
 
   ARM_AM::AddrOpc AddrOpcode = getUBit(insn) ? ARM_AM::add : ARM_AM::sub;
   unsigned IndexMode =
-               (TID.TSFlags & ARMII::IndexModeMask) >> ARMII::IndexModeShift;
+               (MCID.TSFlags & ARMII::IndexModeMask) >> ARMII::IndexModeShift;
   if (getIBit(insn) == 0) {
     // For pre- and post-indexed case, add a reg0 operand (Addressing Mode #2).
     // Otherwise, skip the reg operand since for addrmode_imm12, Rn has already
@@ -1379,17 +1379,17 @@ static bool HasDualReg(unsigned Opcode) {
 static bool DisassembleLdStMiscFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, bool isStore, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  bool isPrePost = isPrePostLdSt(TID.TSFlags);
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  bool isPrePost = isPrePostLdSt(MCID.TSFlags);
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   if (!OpInfo) return false;
 
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
 
-  assert(((!isStore && TID.getNumDefs() > 0) ||
-          (isStore && (TID.getNumDefs() == 0 || isPrePost)))
+  assert(((!isStore && MCID.getNumDefs() > 0) ||
+          (isStore && (MCID.getNumDefs() == 0 || isPrePost)))
          && "Invalid arguments");
 
   // Operand 0 of a pre- and post-indexed store is the address base writeback.
@@ -1433,7 +1433,7 @@ static bool DisassembleLdStMiscFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
 
   assert(OpInfo[OpIdx].RegClass == ARM::GPRRegClassID &&
          "Reg operand expected");
-  assert((!isPrePost || (TID.getOperandConstraint(OpIdx, TOI::TIED_TO) != -1))
+  assert((!isPrePost || (MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO) != -1))
          && "Offset mode or tied_to operand expected");
   MI.addOperand(MCOperand::CreateReg(getRegisterEnum(B, ARM::GPRRegClassID,
                                                      decodeRn(insn))));
@@ -1451,7 +1451,7 @@ static bool DisassembleLdStMiscFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
 
   ARM_AM::AddrOpc AddrOpcode = getUBit(insn) ? ARM_AM::add : ARM_AM::sub;
   unsigned IndexMode =
-                  (TID.TSFlags & ARMII::IndexModeMask) >> ARMII::IndexModeShift;
+                 (MCID.TSFlags & ARMII::IndexModeMask) >> ARMII::IndexModeShift;
   if (getAM3IBit(insn) == 1) {
     MI.addOperand(MCOperand::CreateReg(0));
 
@@ -1539,7 +1539,7 @@ static bool DisassembleLdStMulFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleLdStExFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   if (!OpInfo) return false;
 
   unsigned &OpIdx = NumOpsAdded;
@@ -1591,7 +1591,7 @@ static bool DisassembleLdStExFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleArithMiscFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
@@ -1653,8 +1653,8 @@ static bool DisassembleSatFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
   if (decodeRd(insn) == 15 || decodeRm(insn) == 15)
     return false;
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  NumOpsAdded = TID.getNumOperands() - 2; // ignore predicate operands
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  NumOpsAdded = MCID.getNumOperands() - 2; // ignore predicate operands
 
   // Disassemble register def.
   MI.addOperand(MCOperand::CreateReg(getRegisterEnum(B, ARM::GPRRegClassID,
@@ -1696,7 +1696,7 @@ static bool DisassembleExtFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
   if (decodeRd(insn) == 15 || decodeRm(insn) == 15)
     return false;
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
@@ -1802,7 +1802,7 @@ static bool DisassembleVFPUnaryFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
 
   assert(NumOps >= 1 && "VFPUnaryFrm expects NumOps >= 1");
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
@@ -1842,8 +1842,8 @@ static bool DisassembleVFPBinaryFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
 
   assert(NumOps >= 3 && "VFPBinaryFrm expects NumOps >= 3");
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
@@ -1858,7 +1858,7 @@ static bool DisassembleVFPBinaryFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
   ++OpIdx;
 
   // Skip tied_to operand constraint.
-  if (TID.getOperandConstraint(OpIdx, TOI::TIED_TO) != -1) {
+  if (MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO) != -1) {
     assert(NumOps >= 4 && "Expect >=4 operands");
     MI.addOperand(MCOperand::CreateReg(0));
     ++OpIdx;
@@ -1886,8 +1886,8 @@ static bool DisassembleVFPConv1Frm(MCInst &MI, unsigned Opcode, uint32_t insn,
 
   assert(NumOps >= 2 && "VFPConv1Frm expects NumOps >= 2");
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   if (!OpInfo) return false;
 
   bool SP = slice(insn, 8, 8) == 0; // A8.6.295 & A8.6.297
@@ -1903,7 +1903,7 @@ static bool DisassembleVFPConv1Frm(MCInst &MI, unsigned Opcode, uint32_t insn,
                     getRegisterEnum(B, RegClassID,
                                     decodeVFPRd(insn, SP))));
 
-    assert(TID.getOperandConstraint(1, TOI::TIED_TO) != -1 &&
+    assert(MCID.getOperandConstraint(1, MCOI::TIED_TO) != -1 &&
            "Tied to operand expected");
     MI.addOperand(MI.getOperand(0));
 
@@ -1961,7 +1961,7 @@ static bool DisassembleVFPConv3Frm(MCInst &MI, unsigned Opcode, uint32_t insn,
 
   assert(NumOps >= 3 && "VFPConv3Frm expects NumOps >= 3");
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   MI.addOperand(MCOperand::CreateReg(getRegisterEnum(B, ARM::GPRRegClassID,
@@ -2011,7 +2011,7 @@ static bool DisassembleVFPConv5Frm(MCInst &MI, unsigned Opcode, uint32_t insn,
 
   assert(NumOps >= 3 && "VFPConv5Frm expects NumOps >= 3");
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
@@ -2136,7 +2136,7 @@ static bool DisassembleVFPLdStMulFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleVFPMiscFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
@@ -2402,8 +2402,8 @@ static bool DisassembleNLdSt0(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, bool Store, bool DblSpaced,
     unsigned alignment, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
 
   // At least one DPR register plus addressing mode #6.
   assert(NumOps >= 3 && "Expect >= 3 operands");
@@ -2507,7 +2507,7 @@ static bool DisassembleNLdSt0(MCInst &MI, unsigned Opcode, uint32_t insn,
     }
 
     while (OpIdx < NumOps && (unsigned)OpInfo[OpIdx].RegClass == RegClass) {
-      assert(TID.getOperandConstraint(OpIdx, TOI::TIED_TO) != -1 &&
+      assert(MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO) != -1 &&
              "Tied to operand expected");
       MI.addOperand(MCOperand::CreateReg(0));
       ++OpIdx;
@@ -2757,8 +2757,8 @@ static bool DisassembleNLdSt(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleN1RegModImmFrm(MCInst &MI, unsigned Opcode,
     uint32_t insn, unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
 
   assert(NumOps >= 2 &&
          (OpInfo[0].RegClass == ARM::DPRRegClassID ||
@@ -2848,8 +2848,8 @@ enum N2VFlag {
 static bool DisassembleNVdVmOptImm(MCInst &MI, unsigned Opc, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, N2VFlag Flag, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opc];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opc];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
 
   assert(NumOps >= 2 &&
          (OpInfo[0].RegClass == ARM::DPRRegClassID ||
@@ -2878,7 +2878,7 @@ static bool DisassembleNVdVmOptImm(MCInst &MI, unsigned Opc, uint32_t insn,
   ++OpIdx;
 
   // VPADAL...
-  if (TID.getOperandConstraint(OpIdx, TOI::TIED_TO) != -1) {
+  if (MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO) != -1) {
     // TIED_TO operand.
     MI.addOperand(MCOperand::CreateReg(0));
     ++OpIdx;
@@ -2892,7 +2892,7 @@ static bool DisassembleNVdVmOptImm(MCInst &MI, unsigned Opc, uint32_t insn,
   // VZIP and others have two TIED_TO reg operands.
   int Idx;
   while (OpIdx < NumOps &&
-         (Idx = TID.getOperandConstraint(OpIdx, TOI::TIED_TO)) != -1) {
+         (Idx = MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO)) != -1) {
     // Add TIED_TO operand.
     MI.addOperand(MI.getOperand(Idx));
     ++OpIdx;
@@ -2945,8 +2945,8 @@ static bool DisassembleNVecDupLnFrm(MCInst &MI, unsigned Opc, uint32_t insn,
 static bool DisassembleNVectorShift(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, bool LeftShift, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
 
   assert(NumOps >= 3 &&
          (OpInfo[0].RegClass == ARM::DPRRegClassID ||
@@ -2964,7 +2964,7 @@ static bool DisassembleNVectorShift(MCInst &MI, unsigned Opcode, uint32_t insn,
                                                      decodeNEONRd(insn))));
   ++OpIdx;
 
-  if (TID.getOperandConstraint(OpIdx, TOI::TIED_TO) != -1) {
+  if (MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO) != -1) {
     // TIED_TO operand.
     MI.addOperand(MCOperand::CreateReg(0));
     ++OpIdx;
@@ -3044,8 +3044,8 @@ enum N3VFlag {
 static bool DisassembleNVdVnVmOptImm(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, N3VFlag Flag, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
 
   // No checking for OpInfo[2] because of MOVDneon/MOVQ with only two regs.
   assert(NumOps >= 3 &&
@@ -3076,7 +3076,7 @@ static bool DisassembleNVdVnVmOptImm(MCInst &MI, unsigned Opcode, uint32_t insn,
   ++OpIdx;
 
   // VABA, VABAL, VBSLd, VBSLq, ...
-  if (TID.getOperandConstraint(OpIdx, TOI::TIED_TO) != -1) {
+  if (MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO) != -1) {
     // TIED_TO operand.
     MI.addOperand(MCOperand::CreateReg(0));
     ++OpIdx;
@@ -3163,8 +3163,8 @@ static bool DisassembleNVecMulScalarFrm(MCInst &MI, unsigned Opcode,
 static bool DisassembleNVTBLFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   if (!OpInfo) return false;
 
   assert(NumOps >= 3 &&
@@ -3192,7 +3192,7 @@ static bool DisassembleNVTBLFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
 
   // Process tied_to operand constraint.
   int Idx;
-  if ((Idx = TID.getOperandConstraint(OpIdx, TOI::TIED_TO)) != -1) {
+  if ((Idx = MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO)) != -1) {
     MI.addOperand(MI.getOperand(Idx));
     ++OpIdx;
   }
@@ -3221,11 +3221,11 @@ static bool DisassembleNVTBLFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleNGetLnFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   if (!OpInfo) return false;
 
-  assert(TID.getNumDefs() == 1 && NumOps >= 3 &&
+  assert(MCID.getNumDefs() == 1 && NumOps >= 3 &&
          OpInfo[0].RegClass == ARM::GPRRegClassID &&
          OpInfo[1].RegClass == ARM::DPRRegClassID &&
          OpInfo[2].RegClass < 0 &&
@@ -3255,14 +3255,14 @@ static bool DisassembleNGetLnFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleNSetLnFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   if (!OpInfo) return false;
 
-  assert(TID.getNumDefs() == 1 && NumOps >= 3 &&
+  assert(MCID.getNumDefs() == 1 && NumOps >= 3 &&
          OpInfo[0].RegClass == ARM::DPRRegClassID &&
          OpInfo[1].RegClass == ARM::DPRRegClassID &&
-         TID.getOperandConstraint(1, TOI::TIED_TO) != -1 &&
+         MCID.getOperandConstraint(1, MCOI::TIED_TO) != -1 &&
          OpInfo[2].RegClass == ARM::GPRRegClassID &&
          OpInfo[3].RegClass < 0 &&
          "Expect >= 3 operands with one dst operand");
@@ -3294,7 +3294,7 @@ static bool DisassembleNSetLnFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleNDupFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
 
   assert(NumOps >= 2 &&
          (OpInfo[0].RegClass == ARM::DPRRegClassID ||
@@ -3604,11 +3604,11 @@ bool ARMBasicMCBuilder::DoPredicateOperands(MCInst& MI, unsigned Opcode,
 
   assert(NumOpsRemaining > 0 && "Invalid argument");
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   unsigned Idx = MI.getNumOperands();
 
   // First, we check whether this instr specifies the PredicateOperand through
-  // a pair of TargetOperandInfos with isPredicate() property.
+  // a pair of MCOperandInfos with isPredicate() property.
   if (NumOpsRemaining >= 2 &&
       OpInfo[Idx].isPredicate() && OpInfo[Idx+1].isPredicate() &&
       OpInfo[Idx].RegClass < 0 &&
@@ -3636,13 +3636,13 @@ bool ARMBasicMCBuilder::TryPredicateAndSBitModifier(MCInst& MI, unsigned Opcode,
 
   assert(NumOpsRemaining > 0 && "Invalid argument");
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   const std::string &Name = ARMInsts[Opcode].Name;
   unsigned Idx = MI.getNumOperands();
   uint64_t TSFlags = ARMInsts[Opcode].TSFlags;
 
   // First, we check whether this instr specifies the PredicateOperand through
-  // a pair of TargetOperandInfos with isPredicate() property.
+  // a pair of MCOperandInfos with isPredicate() property.
   if (NumOpsRemaining >= 2 &&
       OpInfo[Idx].isPredicate() && OpInfo[Idx+1].isPredicate() &&
       OpInfo[Idx].RegClass < 0 &&
diff --git a/lib/Target/ARM/Disassembler/ThumbDisassemblerCore.h b/lib/Target/ARM/Disassembler/ThumbDisassemblerCore.h
index 9639c8a4b1..834c6f6529 100644
--- a/lib/Target/ARM/Disassembler/ThumbDisassemblerCore.h
+++ b/lib/Target/ARM/Disassembler/ThumbDisassemblerCore.h
@@ -350,7 +350,7 @@ static inline unsigned decodeRotate(uint32_t insn) {
 static bool DisassembleThumb1General(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
@@ -425,8 +425,8 @@ static bool DisassembleThumb1General(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleThumb1DP(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
@@ -454,7 +454,7 @@ static bool DisassembleThumb1DP(MCInst &MI, unsigned Opcode, uint32_t insn,
   assert(OpIdx < NumOps && OpInfo[OpIdx].RegClass == ARM::tGPRRegClassID
          && "Thumb reg operand expected");
   int Idx;
-  if ((Idx = TID.getOperandConstraint(OpIdx, TOI::TIED_TO)) != -1) {
+  if ((Idx = MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO)) != -1) {
     // The reg operand is tied to the first reg operand.
     MI.addOperand(MI.getOperand(Idx));
     ++OpIdx;
@@ -511,8 +511,8 @@ static bool DisassembleThumb1Special(MCInst &MI, unsigned Opcode, uint32_t insn,
     return true;
   }
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
@@ -530,7 +530,7 @@ static bool DisassembleThumb1Special(MCInst &MI, unsigned Opcode, uint32_t insn,
 
   assert(OpIdx < NumOps && "More operands expected");
   int Idx;
-  if ((Idx = TID.getOperandConstraint(OpIdx, TOI::TIED_TO)) != -1) {
+  if ((Idx = MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO)) != -1) {
     // The reg operand is tied to the first reg operand.
     MI.addOperand(MI.getOperand(Idx));
     ++OpIdx;
@@ -554,7 +554,7 @@ static bool DisassembleThumb1Special(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleThumb1LdPC(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   if (!OpInfo) return false;
 
   assert(NumOps >= 2 && OpInfo[0].RegClass == ARM::tGPRRegClassID &&
@@ -602,7 +602,7 @@ static bool DisassembleThumb1LdPC(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleThumb2Ldpci(MCInst &MI, unsigned Opcode,
     uint32_t insn, unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   if (!OpInfo) return false;
 
   assert(NumOps >= 2 &&
@@ -630,8 +630,8 @@ static bool DisassembleThumb2Ldpci(MCInst &MI, unsigned Opcode,
 static bool DisassembleThumb1LdSt(unsigned opA, MCInst &MI, unsigned Opcode,
     uint32_t insn, unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   assert(NumOps >= 2
@@ -680,7 +680,7 @@ static bool DisassembleThumb1LdStSP(MCInst &MI, unsigned Opcode, uint32_t insn,
   assert((Opcode == ARM::tLDRspi || Opcode == ARM::tSTRspi)
          && "Unexpected opcode");
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   if (!OpInfo) return false;
 
   assert(NumOps >= 3 &&
@@ -708,7 +708,7 @@ static bool DisassembleThumb1AddPCi(MCInst &MI, unsigned Opcode, uint32_t insn,
 
   assert(Opcode == ARM::tADDrPCi && "Unexpected opcode");
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   if (!OpInfo) return false;
 
   assert(NumOps >= 2 && OpInfo[0].RegClass == ARM::tGPRRegClassID &&
@@ -733,7 +733,7 @@ static bool DisassembleThumb1AddSPi(MCInst &MI, unsigned Opcode, uint32_t insn,
 
   assert(Opcode == ARM::tADDrSPi && "Unexpected opcode");
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   if (!OpInfo) return false;
 
   assert(NumOps >= 3 &&
@@ -810,7 +810,7 @@ static bool DisassembleThumb1Misc(MCInst &MI, unsigned Opcode, uint32_t insn,
   if (Opcode == ARM::tPUSH || Opcode == ARM::tPOP)
     return DisassembleThumb1PushPop(MI, Opcode, insn, NumOps, NumOpsAdded, B);
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
 
   // Predicate operands are handled elsewhere.
   if (NumOps == 2 &&
@@ -958,7 +958,7 @@ static bool DisassembleThumb1CondBr(MCInst &MI, unsigned Opcode, uint32_t insn,
   if (Opcode == ARM::tTRAP)
     return true;
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   if (!OpInfo) return false;
 
   assert(NumOps == 3 && OpInfo[0].RegClass < 0 &&
@@ -989,7 +989,7 @@ static bool DisassembleThumb1CondBr(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleThumb1Br(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO) {
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   if (!OpInfo) return false;
 
   assert(NumOps == 1 && OpInfo[0].RegClass < 0 && "1 imm operand expected");
@@ -1226,7 +1226,7 @@ static bool DisassembleThumb2LdStMul(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleThumb2LdStEx(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   if (!OpInfo) return false;
 
   unsigned &OpIdx = NumOpsAdded;
@@ -1316,7 +1316,7 @@ static bool DisassembleThumb2LdStEx(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleThumb2LdStDual(MCInst &MI, unsigned Opcode,
     uint32_t insn, unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
   if (!OpInfo) return false;
 
   assert(NumOps >= 4
@@ -1423,8 +1423,8 @@ static inline bool Thumb2ShiftOpcode(unsigned Opcode) {
 static bool DisassembleThumb2DPSoReg(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   // Special case handling.
@@ -1467,7 +1467,7 @@ static bool DisassembleThumb2DPSoReg(MCInst &MI, unsigned Opcode, uint32_t insn,
 
   if (ThreeReg) {
     int Idx;
-    if ((Idx = TID.getOperandConstraint(OpIdx, TOI::TIED_TO)) != -1) {
+    if ((Idx = MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO)) != -1) {
       // Process tied_to operand constraint.
       MI.addOperand(MI.getOperand(Idx));
       ++OpIdx;
@@ -1521,8 +1521,8 @@ static bool DisassembleThumb2DPSoReg(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleThumb2DPModImm(MCInst &MI, unsigned Opcode,
     uint32_t insn, unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
@@ -1550,7 +1550,7 @@ static bool DisassembleThumb2DPModImm(MCInst &MI, unsigned Opcode,
       return false;
     }
     int Idx;
-    if ((Idx = TID.getOperandConstraint(OpIdx, TOI::TIED_TO)) != -1) {
+    if ((Idx = MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO)) != -1) {
       // The reg operand is tied to the first reg operand.
       MI.addOperand(MI.getOperand(Idx));
     } else {
@@ -1590,8 +1590,8 @@ static inline bool Thumb2SaturateOpcode(unsigned Opcode) {
 /// o t2SSAT16, t2USAT16: Rs sat_pos Rn
 static bool DisassembleThumb2Sat(MCInst &MI, unsigned Opcode, uint32_t insn,
                                  unsigned &NumOpsAdded, BO B) {
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  NumOpsAdded = TID.getNumOperands() - 2; // ignore predicate operands
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  NumOpsAdded = MCID.getNumOperands() - 2; // ignore predicate operands
 
   // Disassemble the register def.
   MI.addOperand(MCOperand::CreateReg(getRegisterEnum(B, ARM::rGPRRegClassID,
@@ -1635,8 +1635,8 @@ static bool DisassembleThumb2Sat(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleThumb2DPBinImm(MCInst &MI, unsigned Opcode,
     uint32_t insn, unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
@@ -1659,7 +1659,7 @@ static bool DisassembleThumb2DPBinImm(MCInst &MI, unsigned Opcode,
   if (TwoReg) {
     assert(NumOps >= 3 && "Expect >= 3 operands");
     int Idx;
-    if ((Idx = TID.getOperandConstraint(OpIdx, TOI::TIED_TO)) != -1) {
+    if ((Idx = MCID.getOperandConstraint(OpIdx, MCOI::TIED_TO)) != -1) {
       // Process tied_to operand constraint.
       MI.addOperand(MI.getOperand(Idx));
     } else {
@@ -1907,8 +1907,8 @@ static bool DisassembleThumb2PreLoad(MCInst &MI, unsigned Opcode, uint32_t insn,
   // t2PLDs:                      Rn Rm imm2=Inst{5-4}
   // Same pattern applies for t2PLDW* and t2PLI*.
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
@@ -2073,8 +2073,8 @@ static bool DisassembleThumb2LdSt(bool Load, MCInst &MI, unsigned Opcode,
   // See, for example, A6.3.7 Load word: Table A6-18 Load word.
   if (Load && Rn == 15)
     return DisassembleThumb2Ldpci(MI, Opcode, insn, NumOps, NumOpsAdded, B);
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
@@ -2085,7 +2085,7 @@ static bool DisassembleThumb2LdSt(bool Load, MCInst &MI, unsigned Opcode,
          "Expect >= 3 operands and first two as reg operands");
 
   bool ThreeReg = (OpInfo[2].RegClass > 0);
-  bool TIED_TO = ThreeReg && TID.getOperandConstraint(2, TOI::TIED_TO) != -1;
+  bool TIED_TO = ThreeReg && MCID.getOperandConstraint(2, MCOI::TIED_TO) != -1;
   bool Imm12 = !ThreeReg && slice(insn, 23, 23) == 1; // ARMInstrThumb2.td
 
   // Build the register operands, followed by the immediate.
@@ -2160,8 +2160,8 @@ static bool DisassembleThumb2LdSt(bool Load, MCInst &MI, unsigned Opcode,
 static bool DisassembleThumb2DPReg(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetInstrDesc &TID = ARMInsts[Opcode];
-  const TargetOperandInfo *OpInfo = TID.OpInfo;
+  const MCInstrDesc &MCID = ARMInsts[Opcode];
+  const MCOperandInfo *OpInfo = MCID.OpInfo;
   unsigned &OpIdx = NumOpsAdded;
 
   OpIdx = 0;
@@ -2214,7 +2214,7 @@ static bool DisassembleThumb2DPReg(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleThumb2Mul(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
 
   assert(NumOps >= 3 &&
          OpInfo[0].RegClass == ARM::rGPRRegClassID &&
@@ -2259,7 +2259,7 @@ static bool DisassembleThumb2Mul(MCInst &MI, unsigned Opcode, uint32_t insn,
 static bool DisassembleThumb2LongMul(MCInst &MI, unsigned Opcode, uint32_t insn,
     unsigned short NumOps, unsigned &NumOpsAdded, BO B) {
 
-  const TargetOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
+  const MCOperandInfo *OpInfo = ARMInsts[Opcode].OpInfo;
 
   assert(NumOps >= 3 &&
          OpInfo[0].RegClass == ARM::rGPRRegClassID &&
diff --git a/lib/Target/ARM/MLxExpansionPass.cpp b/lib/Target/ARM/MLxExpansionPass.cpp
index fc22861476..2df00538b3 100644
--- a/lib/Target/ARM/MLxExpansionPass.cpp
+++ b/lib/Target/ARM/MLxExpansionPass.cpp
@@ -137,11 +137,11 @@ unsigned MLxExpansion::getDefReg(MachineInstr *MI) const {
 
 bool MLxExpansion::hasRAWHazard(unsigned Reg, MachineInstr *MI) const {
   // FIXME: Detect integer instructions properly.
-  const TargetInstrDesc &TID = MI->getDesc();
-  unsigned Domain = TID.TSFlags & ARMII::DomainMask;
-  if (TID.mayStore())
+  const MCInstrDesc &MCID = MI->getDesc();
+  unsigned Domain = MCID.TSFlags & ARMII::DomainMask;
+  if (MCID.mayStore())
     return false;
-  unsigned Opcode = TID.getOpcode();
+  unsigned Opcode = MCID.getOpcode();
   if (Opcode == ARM::VMOVRS || Opcode == ARM::VMOVRRD)
     return false;
   if ((Domain & ARMII::DomainVFP) || (Domain & ARMII::DomainNEON))
@@ -218,18 +218,18 @@ MLxExpansion::ExpandFPMLxInstruction(MachineBasicBlock &MBB, MachineInstr *MI,
   ARMCC::CondCodes Pred = (ARMCC::CondCodes)MI->getOperand(NextOp).getImm();
   unsigned PredReg = MI->getOperand(++NextOp).getReg();
 
-  const TargetInstrDesc &TID1 = TII->get(MulOpc);
-  const TargetInstrDesc &TID2 = TII->get(AddSubOpc);
-  unsigned TmpReg = MRI->createVirtualRegister(TII->getRegClass(TID1, 0, TRI));
+  const MCInstrDesc &MCID1 = TII->get(MulOpc);
+  const MCInstrDesc &MCID2 = TII->get(AddSubOpc);
+  unsigned TmpReg = MRI->createVirtualRegister(TII->getRegClass(MCID1, 0, TRI));
 
-  MachineInstrBuilder MIB = BuildMI(MBB, *MI, MI->getDebugLoc(), TID1, TmpReg)
+  MachineInstrBuilder MIB = BuildMI(MBB, *MI, MI->getDebugLoc(), MCID1, TmpReg)
     .addReg(Src1Reg, getKillRegState(Src1Kill))
     .addReg(Src2Reg, getKillRegState(Src2Kill));
   if (HasLane)
     MIB.addImm(LaneImm);
   MIB.addImm(Pred).addReg(PredReg);
 
-  MIB = BuildMI(MBB, *MI, MI->getDebugLoc(), TID2)
+  MIB = BuildMI(MBB, *MI, MI->getDebugLoc(), MCID2)
     .addReg(DstReg, getDefRegState(true) | getDeadRegState(DstDead));
 
   if (NegAcc) {
@@ -273,15 +273,15 @@ bool MLxExpansion::ExpandFPMLxInstructions(MachineBasicBlock &MBB) {
       continue;
     }
 
-    const TargetInstrDesc &TID = MI->getDesc();
-    if (TID.isBarrier()) {
+    const MCInstrDesc &MCID = MI->getDesc();
+    if (MCID.isBarrier()) {
       clearStack();
       Skip = 0;
       ++MII;
       continue;
     }
 
-    unsigned Domain = TID.TSFlags & ARMII::DomainMask;
+    unsigned Domain = MCID.TSFlags & ARMII::DomainMask;
     if (Domain == ARMII::DomainGeneral) {
       if (++Skip == 2)
         // Assume dual issues of non-VFP / NEON instructions.
@@ -291,7 +291,7 @@ bool MLxExpansion::ExpandFPMLxInstructions(MachineBasicBlock &MBB) {
 
       unsigned MulOpc, AddSubOpc;
       bool NegAcc, HasLane;
-      if (!TII->isFpMLxInstruction(TID.getOpcode(),
+      if (!TII->isFpMLxInstruction(MCID.getOpcode(),
                                    MulOpc, AddSubOpc, NegAcc, HasLane) ||
           !FindMLxHazard(MI))
         pushStack(MI);
diff --git a/lib/Target/ARM/Thumb1RegisterInfo.cpp b/lib/Target/ARM/Thumb1RegisterInfo.cpp
index 6bf565068e..2a1dbf7592 100644
--- a/lib/Target/ARM/Thumb1RegisterInfo.cpp
+++ b/lib/Target/ARM/Thumb1RegisterInfo.cpp
@@ -239,9 +239,9 @@ void llvm::emitThumbRegPlusImmediate(MachineBasicBlock &MBB,
       unsigned Chunk = (1 << 3) - 1;
       unsigned ThisVal = (Bytes > Chunk) ? Chunk : Bytes;
       Bytes -= ThisVal;
-      const TargetInstrDesc &TID = TII.get(isSub ? ARM::tSUBi3 : ARM::tADDi3);
+      const MCInstrDesc &MCID = TII.get(isSub ? ARM::tSUBi3 : ARM::tADDi3);
       const MachineInstrBuilder MIB =
-        AddDefaultT1CC(BuildMI(MBB, MBBI, dl, TID, DestReg).setMIFlags(MIFlags));
+        AddDefaultT1CC(BuildMI(MBB, MBBI, dl, MCID, DestReg).setMIFlags(MIFlags));
       AddDefaultPred(MIB.addReg(BaseReg, RegState::Kill).addImm(ThisVal));
     } else {
       BuildMI(MBB, MBBI, dl, TII.get(ARM::tMOVr), DestReg)
@@ -291,8 +291,8 @@ void llvm::emitThumbRegPlusImmediate(MachineBasicBlock &MBB,
   }
 
   if (ExtraOpc) {
-    const TargetInstrDesc &TID = TII.get(ExtraOpc);
-    AddDefaultPred(AddDefaultT1CC(BuildMI(MBB, MBBI, dl, TID, DestReg))
+    const MCInstrDesc &MCID = TII.get(ExtraOpc);
+    AddDefaultPred(AddDefaultT1CC(BuildMI(MBB, MBBI, dl, MCID, DestReg))
                    .addReg(DestReg, RegState::Kill)
                    .addImm(((unsigned)NumBytes) & 3)
                    .setMIFlags(MIFlags));
@@ -360,8 +360,8 @@ static void emitThumbConstant(MachineBasicBlock &MBB,
   if (Imm > 0)
     emitThumbRegPlusImmediate(MBB, MBBI, dl, DestReg, DestReg, Imm, TII, MRI);
   if (isSub) {
-    const TargetInstrDesc &TID = TII.get(ARM::tRSB);
-    AddDefaultPred(AddDefaultT1CC(BuildMI(MBB, MBBI, dl, TID, DestReg))
+    const MCInstrDesc &MCID = TII.get(ARM::tRSB);
+    AddDefaultPred(AddDefaultT1CC(BuildMI(MBB, MBBI, dl, MCID, DestReg))
                    .addReg(DestReg, RegState::Kill));
   }
 }
@@ -396,7 +396,7 @@ rewriteFrameIndex(MachineBasicBlock::iterator II, unsigned FrameRegIdx,
   MachineBasicBlock &MBB = *MI.getParent();
   DebugLoc dl = MI.getDebugLoc();
   unsigned Opcode = MI.getOpcode();
-  const TargetInstrDesc &Desc = MI.getDesc();
+  const MCInstrDesc &Desc = MI.getDesc();
   unsigned AddrMode = (Desc.TSFlags & ARMII::AddrModeMask);
 
   if (Opcode == ARM::tADDrSPi) {
@@ -653,7 +653,7 @@ Thumb1RegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
   assert(Offset && "This code isn't needed if offset already handled!");
 
   unsigned Opcode = MI.getOpcode();
-  const TargetInstrDesc &Desc = MI.getDesc();
+  const MCInstrDesc &Desc = MI.getDesc();
 
   // Remove predicate first.
   int PIdx = MI.findFirstPredOperandIdx();
diff --git a/lib/Target/ARM/Thumb2InstrInfo.cpp b/lib/Target/ARM/Thumb2InstrInfo.cpp
index d169dbb7f1..98151b96bf 100644
--- a/lib/Target/ARM/Thumb2InstrInfo.cpp
+++ b/lib/Target/ARM/Thumb2InstrInfo.cpp
@@ -396,7 +396,7 @@ bool llvm::rewriteT2FrameIndex(MachineInstr &MI, unsigned FrameRegIdx,
                                unsigned FrameReg, int &Offset,
                                const ARMBaseInstrInfo &TII) {
   unsigned Opcode = MI.getOpcode();
-  const TargetInstrDesc &Desc = MI.getDesc();
+  const MCInstrDesc &Desc = MI.getDesc();
   unsigned AddrMode = (Desc.TSFlags & ARMII::AddrModeMask);
   bool isSub = false;
 
diff --git a/lib/Target/ARM/Thumb2SizeReduction.cpp b/lib/Target/ARM/Thumb2SizeReduction.cpp
index ce2e9663fb..9b87747165 100644
--- a/lib/Target/ARM/Thumb2SizeReduction.cpp
+++ b/lib/Target/ARM/Thumb2SizeReduction.cpp
@@ -189,8 +189,8 @@ Thumb2SizeReduce::Thumb2SizeReduce() : MachineFunctionPass(ID) {
   }
 }
 
-static bool HasImplicitCPSRDef(const TargetInstrDesc &TID) {
-  for (const unsigned *Regs = TID.ImplicitDefs; *Regs; ++Regs)
+static bool HasImplicitCPSRDef(const MCInstrDesc &MCID) {
+  for (const unsigned *Regs = MCID.ImplicitDefs; *Regs; ++Regs)
     if (*Regs == ARM::CPSR)
       return true;
   return false;
@@ -484,8 +484,8 @@ Thumb2SizeReduce::ReduceSpecial(MachineBasicBlock &MBB, MachineInstr *MI,
   if (Entry.LowRegs1 && !VerifyLowRegs(MI))
     return false;
 
-  const TargetInstrDesc &TID = MI->getDesc();
-  if (TID.mayLoad() || TID.mayStore())
+  const MCInstrDesc &MCID = MI->getDesc();
+  if (MCID.mayLoad() || MCID.mayStore())
     return ReduceLoadStore(MBB, MI, Entry);
 
   unsigned Opc = MI->getOpcode();
@@ -576,23 +576,23 @@ Thumb2SizeReduce::ReduceTo2Addr(MachineBasicBlock &MBB, MachineInstr *MI,
   }
 
   // Check if it's possible / necessary to transfer the predicate.
-  const TargetInstrDesc &NewTID = TII->get(Entry.NarrowOpc2);
+  const MCInstrDesc &NewMCID = TII->get(Entry.NarrowOpc2);
   unsigned PredReg = 0;
   ARMCC::CondCodes Pred = getInstrPredicate(MI, PredReg);
   bool SkipPred = false;
   if (Pred != ARMCC::AL) {
-    if (!NewTID.isPredicable())
+    if (!NewMCID.isPredicable())
       // Can't transfer predicate, fail.
       return false;
   } else {
-    SkipPred = !NewTID.isPredicable();
+    SkipPred = !NewMCID.isPredicable();
   }
 
   bool HasCC = false;
   bool CCDead = false;
-  const TargetInstrDesc &TID = MI->getDesc();
-  if (TID.hasOptionalDef()) {
-    unsigned NumOps = TID.getNumOperands();
+  const MCInstrDesc &MCID = MI->getDesc();
+  if (MCID.hasOptionalDef()) {
+    unsigned NumOps = MCID.getNumOperands();
     HasCC = (MI->getOperand(NumOps-1).getReg() == ARM::CPSR);
     if (HasCC && MI->getOperand(NumOps-1).isDead())
       CCDead = true;
@@ -602,15 +602,15 @@ Thumb2SizeReduce::ReduceTo2Addr(MachineBasicBlock &MBB, MachineInstr *MI,
 
   // Avoid adding a false dependency on partial flag update by some 16-bit
   // instructions which has the 's' bit set.
-  if (Entry.PartFlag && NewTID.hasOptionalDef() && HasCC &&
+  if (Entry.PartFlag && NewMCID.hasOptionalDef() && HasCC &&
       canAddPseudoFlagDep(CPSRDef, MI))
     return false;
 
   // Add the 16-bit instruction.
   DebugLoc dl = MI->getDebugLoc();
-  MachineInstrBuilder MIB = BuildMI(MBB, *MI, dl, NewTID);
+  MachineInstrBuilder MIB = BuildMI(MBB, *MI, dl, NewMCID);
   MIB.addOperand(MI->getOperand(0));
-  if (NewTID.hasOptionalDef()) {
+  if (NewMCID.hasOptionalDef()) {
     if (HasCC)
       AddDefaultT1CC(MIB, CCDead);
     else
@@ -618,11 +618,11 @@ Thumb2SizeReduce::ReduceTo2Addr(MachineBasicBlock &MBB, MachineInstr *MI,
   }
 
   // Transfer the rest of operands.
-  unsigned NumOps = TID.getNumOperands();
+  unsigned NumOps = MCID.getNumOperands();
   for (unsigned i = 1, e = MI->getNumOperands(); i != e; ++i) {
-    if (i < NumOps && TID.OpInfo[i].isOptionalDef())
+    if (i < NumOps && MCID.OpInfo[i].isOptionalDef())
       continue;
-    if (SkipPred && TID.OpInfo[i].isPredicate())
+    if (SkipPred && MCID.OpInfo[i].isPredicate())
       continue;
     MIB.addOperand(MI->getOperand(i));
   }
@@ -649,9 +649,9 @@ Thumb2SizeReduce::ReduceToNarrow(MachineBasicBlock &MBB, MachineInstr *MI,
   if (Entry.Imm1Limit)
     Limit = ((1 << Entry.Imm1Limit) - 1) * Scale;
 
-  const TargetInstrDesc &TID = MI->getDesc();
-  for (unsigned i = 0, e = TID.getNumOperands(); i != e; ++i) {
-    if (TID.OpInfo[i].isPredicate())
+  const MCInstrDesc &MCID = MI->getDesc();
+  for (unsigned i = 0, e = MCID.getNumOperands(); i != e; ++i) {
+    if (MCID.OpInfo[i].isPredicate())
       continue;
     const MachineOperand &MO = MI->getOperand(i);
     if (MO.isReg()) {
@@ -663,29 +663,29 @@ Thumb2SizeReduce::ReduceToNarrow(MachineBasicBlock &MBB, MachineInstr *MI,
       if (Entry.LowRegs1 && !isARMLowRegister(Reg))
         return false;
     } else if (MO.isImm() &&
-               !TID.OpInfo[i].isPredicate()) {
+               !MCID.OpInfo[i].isPredicate()) {
       if (((unsigned)MO.getImm()) > Limit || (MO.getImm() & (Scale-1)) != 0)
         return false;
     }
   }
 
   // Check if it's possible / necessary to transfer the predicate.
-  const TargetInstrDesc &NewTID = TII->get(Entry.NarrowOpc1);
+  const MCInstrDesc &NewMCID = TII->get(Entry.NarrowOpc1);
   unsigned PredReg = 0;
   ARMCC::CondCodes Pred = getInstrPredicate(MI, PredReg);
   bool SkipPred = false;
   if (Pred != ARMCC::AL) {
-    if (!NewTID.isPredicable())
+    if (!NewMCID.isPredicable())
       // Can't transfer predicate, fail.
       return false;
   } else {
-    SkipPred = !NewTID.isPredicable();
+    SkipPred = !NewMCID.isPredicable();
   }
 
   bool HasCC = false;
   bool CCDead = false;
-  if (TID.hasOptionalDef()) {
-    unsigned NumOps = TID.getNumOperands();
+  if (MCID.hasOptionalDef()) {
+    unsigned NumOps = MCID.getNumOperands();
     HasCC = (MI->getOperand(NumOps-1).getReg() == ARM::CPSR);
     if (HasCC && MI->getOperand(NumOps-1).isDead())
       CCDead = true;
@@ -695,15 +695,15 @@ Thumb2SizeReduce::ReduceToNarrow(MachineBasicBlock &MBB, MachineInstr *MI,
 
   // Avoid adding a false dependency on partial flag update by some 16-bit
   // instructions which has the 's' bit set.
-  if (Entry.PartFlag && NewTID.hasOptionalDef() && HasCC &&
+  if (Entry.PartFlag && NewMCID.hasOptionalDef() && HasCC &&
       canAddPseudoFlagDep(CPSRDef, MI))
     return false;
 
   // Add the 16-bit instruction.
   DebugLoc dl = MI->getDebugLoc();
-  MachineInstrBuilder MIB = BuildMI(MBB, *MI, dl, NewTID);
+  MachineInstrBuilder MIB = BuildMI(MBB, *MI, dl, NewMCID);
   MIB.addOperand(MI->getOperand(0));
-  if (NewTID.hasOptionalDef()) {
+  if (NewMCID.hasOptionalDef()) {
     if (HasCC)
       AddDefaultT1CC(MIB, CCDead);
     else
@@ -711,15 +711,15 @@ Thumb2SizeReduce::ReduceToNarrow(MachineBasicBlock &MBB, MachineInstr *MI,
   }
 
   // Transfer the rest of operands.
-  unsigned NumOps = TID.getNumOperands();
+  unsigned NumOps = MCID.getNumOperands();
   for (unsigned i = 1, e = MI->getNumOperands(); i != e; ++i) {
-    if (i < NumOps && TID.OpInfo[i].isOptionalDef())
+    if (i < NumOps && MCID.OpInfo[i].isOptionalDef())
       continue;
-    if ((TID.getOpcode() == ARM::t2RSBSri ||
-         TID.getOpcode() == ARM::t2RSBri) && i == 2)
+    if ((MCID.getOpcode() == ARM::t2RSBSri ||
+         MCID.getOpcode() == ARM::t2RSBri) && i == 2)
       // Skip the zero immediate operand, it's now implicit.
       continue;
-    bool isPred = (i < NumOps && TID.OpInfo[i].isPredicate());
+    bool isPred = (i < NumOps && MCID.OpInfo[i].isPredicate());
     if (SkipPred && isPred)
         continue;
     const MachineOperand &MO = MI->getOperand(i);
@@ -733,7 +733,7 @@ Thumb2SizeReduce::ReduceToNarrow(MachineBasicBlock &MBB, MachineInstr *MI,
       MIB.addOperand(MO);
     }
   }
-  if (!TID.isPredicable() && NewTID.isPredicable())
+  if (!MCID.isPredicable() && NewMCID.isPredicable())
     AddDefaultPred(MIB);
 
   // Transfer MI flags.
diff --git a/lib/Target/Blackfin/BlackfinISelDAGToDAG.cpp b/lib/Target/Blackfin/BlackfinISelDAGToDAG.cpp
index d587a2f50a..215ca43ea3 100644
--- a/lib/Target/Blackfin/BlackfinISelDAGToDAG.cpp
+++ b/lib/Target/Blackfin/BlackfinISelDAGToDAG.cpp
@@ -146,21 +146,21 @@ void BlackfinDAGToDAGISel::FixRegisterClasses(SelectionDAG &DAG) {
        NI != DAG.allnodes_end(); ++NI) {
     if (NI->use_empty() || !NI->isMachineOpcode())
       continue;
-    const TargetInstrDesc &DefTID = TII.get(NI->getMachineOpcode());
+    const MCInstrDesc &DefMCID = TII.get(NI->getMachineOpcode());
     for (SDNode::use_iterator UI = NI->use_begin(); !UI.atEnd(); ++UI) {
       if (!UI->isMachineOpcode())
         continue;
 
-      if (UI.getUse().getResNo() >= DefTID.getNumDefs())
+      if (UI.getUse().getResNo() >= DefMCID.getNumDefs())
         continue;
       const TargetRegisterClass *DefRC =
-        TII.getRegClass(DefTID, UI.getUse().getResNo(), TRI);
+        TII.getRegClass(DefMCID, UI.getUse().getResNo(), TRI);
 
-      const TargetInstrDesc &UseTID = TII.get(UI->getMachineOpcode());
-      if (UseTID.getNumDefs()+UI.getOperandNo() >= UseTID.getNumOperands())
+      const MCInstrDesc &UseMCID = TII.get(UI->getMachineOpcode());
+      if (UseMCID.getNumDefs()+UI.getOperandNo() >= UseMCID.getNumOperands())
         continue;
       const TargetRegisterClass *UseRC =
-        TII.getRegClass(UseTID, UseTID.getNumDefs()+UI.getOperandNo(), TRI);
+        TII.getRegClass(UseMCID, UseMCID.getNumDefs()+UI.getOperandNo(), TRI);
       if (!DefRC || !UseRC)
         continue;
       // We cannot copy CC <-> !(CC/D)
diff --git a/lib/Target/MBlaze/MBlazeDelaySlotFiller.cpp b/lib/Target/MBlaze/MBlazeDelaySlotFiller.cpp
index 973e96844e..c07570a487 100644
--- a/lib/Target/MBlaze/MBlazeDelaySlotFiller.cpp
+++ b/lib/Target/MBlaze/MBlazeDelaySlotFiller.cpp
@@ -109,7 +109,7 @@ static bool delayHasHazard(MachineBasicBlock::iterator &candidate,
   // Hazard check
   MachineBasicBlock::iterator a = candidate;
   MachineBasicBlock::iterator b = slot;
-  TargetInstrDesc desc = candidate->getDesc();
+  MCInstrDesc desc = candidate->getDesc();
 
   // MBB layout:-
   //    candidate := a0 = operation(a1, a2)
@@ -183,7 +183,7 @@ static bool isDelayFiller(MachineBasicBlock &MBB,
   if (candidate == MBB.begin())
     return false;
 
-  TargetInstrDesc brdesc = (--candidate)->getDesc();
+  MCInstrDesc brdesc = (--candidate)->getDesc();
   return (brdesc.hasDelaySlot());
 }
 
@@ -211,7 +211,7 @@ findDelayInstr(MachineBasicBlock &MBB,MachineBasicBlock::iterator slot) {
       break;
 
     --I;
-    TargetInstrDesc desc = I->getDesc();
+    MCInstrDesc desc = I->getDesc();
     if (desc.hasDelaySlot() || desc.isBranch() || isDelayFiller(MBB,I) ||
         desc.isCall() || desc.isReturn() || desc.isBarrier() ||
         hasUnknownSideEffects(I))
diff --git a/lib/Target/MBlaze/MBlazeMCCodeEmitter.cpp b/lib/Target/MBlaze/MBlazeMCCodeEmitter.cpp
index 3ece1a8a34..c573d4a28e 100644
--- a/lib/Target/MBlaze/MBlazeMCCodeEmitter.cpp
+++ b/lib/Target/MBlaze/MBlazeMCCodeEmitter.cpp
@@ -179,7 +179,7 @@ void MBlazeMCCodeEmitter::
 EncodeInstruction(const MCInst &MI, raw_ostream &OS,
                   SmallVectorImpl<MCFixup> &Fixups) const {
   unsigned Opcode = MI.getOpcode();
-  const TargetInstrDesc &Desc = TII.get(Opcode);
+  const MCInstrDesc &Desc = TII.get(Opcode);
   uint64_t TSFlags = Desc.TSFlags;
   // Keep track of the current byte being emitted.
   unsigned CurByte = 0;
diff --git a/lib/Target/MSP430/MSP430InstrInfo.cpp b/lib/Target/MSP430/MSP430InstrInfo.cpp
index 424df136cc..8ea84906bf 100644
--- a/lib/Target/MSP430/MSP430InstrInfo.cpp
+++ b/lib/Target/MSP430/MSP430InstrInfo.cpp
@@ -158,13 +158,13 @@ ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const {
 }
 
 bool MSP430InstrInfo::isUnpredicatedTerminator(const MachineInstr *MI) const {
-  const TargetInstrDesc &TID = MI->getDesc();
-  if (!TID.isTerminator()) return false;
+  const MCInstrDesc &MCID = MI->getDesc();
+  if (!MCID.isTerminator()) return false;
 
   // Conditional branch is a special case.
-  if (TID.isBranch() && !TID.isBarrier())
+  if (MCID.isBranch() && !MCID.isBarrier())
     return true;
-  if (!TID.isPredicable())
+  if (!MCID.isPredicable())
     return true;
   return !isPredicated(MI);
 }
@@ -293,7 +293,7 @@ MSP430InstrInfo::InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
 /// instruction may be.  This returns the maximum number of bytes.
 ///
 unsigned MSP430InstrInfo::GetInstSizeInBytes(const MachineInstr *MI) const {
-  const TargetInstrDesc &Desc = MI->getDesc();
+  const MCInstrDesc &Desc = MI->getDesc();
 
   switch (Desc.TSFlags & MSP430II::SizeMask) {
   default:
diff --git a/lib/Target/Mips/MipsDelaySlotFiller.cpp b/lib/Target/Mips/MipsDelaySlotFiller.cpp
index b44a0af2d4..c3a6211399 100644
--- a/lib/Target/Mips/MipsDelaySlotFiller.cpp
+++ b/lib/Target/Mips/MipsDelaySlotFiller.cpp
@@ -59,10 +59,10 @@ runOnMachineBasicBlock(MachineBasicBlock &MBB)
 {
   bool Changed = false;
   for (MachineBasicBlock::iterator I = MBB.begin(); I != MBB.end(); ++I) {
-    const TargetInstrDesc& Tid = I->getDesc();
-    if (Tid.hasDelaySlot() &&
+    const MCInstrDesc& MCid = I->getDesc();
+    if (MCid.hasDelaySlot() &&
         (TM.getSubtarget<MipsSubtarget>().isMips1() ||
-         Tid.isCall() || Tid.isBranch() || Tid.isReturn())) {
+         MCid.isCall() || MCid.isBranch() || MCid.isReturn())) {
       MachineBasicBlock::iterator J = I;
       ++J;
       BuildMI(MBB, J, I->getDebugLoc(), TII->get(Mips::NOP));
diff --git a/lib/Target/Mips/MipsExpandPseudo.cpp b/lib/Target/Mips/MipsExpandPseudo.cpp
index 4423f51479..a622258a4d 100644
--- a/lib/Target/Mips/MipsExpandPseudo.cpp
+++ b/lib/Target/Mips/MipsExpandPseudo.cpp
@@ -61,9 +61,9 @@ bool MipsExpandPseudo::runOnMachineBasicBlock(MachineBasicBlock& MBB) {
 
   bool Changed = false;
   for (MachineBasicBlock::iterator I = MBB.begin(); I != MBB.end();) {
-    const TargetInstrDesc& Tid = I->getDesc();
+    const MCInstrDesc& MCid = I->getDesc();
 
-    switch(Tid.getOpcode()) {
+    switch(MCid.getOpcode()) {
     default: 
       ++I;
       continue;
@@ -87,7 +87,7 @@ void MipsExpandPseudo::ExpandBuildPairF64(MachineBasicBlock& MBB,
                                             MachineBasicBlock::iterator I) {  
   unsigned DstReg = I->getOperand(0).getReg();
   unsigned LoReg = I->getOperand(1).getReg(), HiReg = I->getOperand(2).getReg();
-  const TargetInstrDesc& Mtc1Tdd = TII->get(Mips::MTC1);
+  const MCInstrDesc& Mtc1Tdd = TII->get(Mips::MTC1);
   DebugLoc dl = I->getDebugLoc();
   const unsigned* SubReg =
     TM.getRegisterInfo()->getSubRegisters(DstReg);
@@ -103,7 +103,7 @@ void MipsExpandPseudo::ExpandExtractElementF64(MachineBasicBlock& MBB,
   unsigned DstReg = I->getOperand(0).getReg();
   unsigned SrcReg = I->getOperand(1).getReg();
   unsigned N = I->getOperand(2).getImm();
-  const TargetInstrDesc& Mfc1Tdd = TII->get(Mips::MFC1);
+  const MCInstrDesc& Mfc1Tdd = TII->get(Mips::MFC1);
   DebugLoc dl = I->getDebugLoc();
   const unsigned* SubReg = TM.getRegisterInfo()->getSubRegisters(SrcReg);
 
diff --git a/lib/Target/Mips/MipsInstrInfo.cpp b/lib/Target/Mips/MipsInstrInfo.cpp
index be044fa1f3..df5a089588 100644
--- a/lib/Target/Mips/MipsInstrInfo.cpp
+++ b/lib/Target/Mips/MipsInstrInfo.cpp
@@ -341,8 +341,8 @@ void MipsInstrInfo::BuildCondBr(MachineBasicBlock &MBB,
                                 const SmallVectorImpl<MachineOperand>& Cond)
   const {
   unsigned Opc = Cond[0].getImm();
-  const TargetInstrDesc &TID = get(Opc);
-  MachineInstrBuilder MIB = BuildMI(&MBB, DL, TID);
+  const MCInstrDesc &MCID = get(Opc);
+  MachineInstrBuilder MIB = BuildMI(&MBB, DL, MCID);
 
   for (unsigned i = 1; i < Cond.size(); ++i)
     MIB.addReg(Cond[i].getReg());
diff --git a/lib/Target/PTX/PTXInstrInfo.cpp b/lib/Target/PTX/PTXInstrInfo.cpp
index 5bdac8917e..665685d602 100644
--- a/lib/Target/PTX/PTXInstrInfo.cpp
+++ b/lib/Target/PTX/PTXInstrInfo.cpp
@@ -47,8 +47,8 @@ void PTXInstrInfo::copyPhysReg(MachineBasicBlock &MBB,
                                bool KillSrc) const {
   for (int i = 0, e = sizeof(map)/sizeof(map[0]); i != e; ++ i) {
     if (map[i].cls->contains(DstReg, SrcReg)) {
-      const TargetInstrDesc &TID = get(map[i].opcode);
-      MachineInstr *MI = BuildMI(MBB, I, DL, TID, DstReg).
+      const MCInstrDesc &MCID = get(map[i].opcode);
+      MachineInstr *MI = BuildMI(MBB, I, DL, MCID, DstReg).
         addReg(SrcReg, getKillRegState(KillSrc));
       AddDefaultPredicate(MI);
       return;
@@ -69,8 +69,8 @@ bool PTXInstrInfo::copyRegToReg(MachineBasicBlock &MBB,
 
   for (int i = 0, e = sizeof(map)/sizeof(map[0]); i != e; ++ i)
     if (DstRC == map[i].cls) {
-      const TargetInstrDesc &TID = get(map[i].opcode);
-      MachineInstr *MI = BuildMI(MBB, I, DL, TID, DstReg).addReg(SrcReg);
+      const MCInstrDesc &MCID = get(map[i].opcode);
+      MachineInstr *MI = BuildMI(MBB, I, DL, MCID, DstReg).addReg(SrcReg);
       AddDefaultPredicate(MI);
       return true;
     }
@@ -178,13 +178,13 @@ AnalyzeBranch(MachineBasicBlock &MBB,
 
   MachineBasicBlock::const_iterator iter = MBB.end();
   const MachineInstr& instLast1 = *--iter;
-  const TargetInstrDesc &desc1 = instLast1.getDesc();
+  const MCInstrDesc &desc1 = instLast1.getDesc();
   // for special case that MBB has only 1 instruction
   const bool IsSizeOne = MBB.size() == 1;
   // if IsSizeOne is true, *--iter and instLast2 are invalid
   // we put a dummy value in instLast2 and desc2 since they are used
   const MachineInstr& instLast2 = IsSizeOne ? instLast1 : *--iter;
-  const TargetInstrDesc &desc2 = IsSizeOne ? desc1 : instLast2.getDesc();
+  const MCInstrDesc &desc2 = IsSizeOne ? desc1 : instLast2.getDesc();
 
   DEBUG(dbgs() << "\n");
   DEBUG(dbgs() << "AnalyzeBranch: opcode: " << instLast1.getOpcode() << "\n");
@@ -387,7 +387,7 @@ void PTXInstrInfo::AddDefaultPredicate(MachineInstr *MI) {
 }
 
 bool PTXInstrInfo::IsAnyKindOfBranch(const MachineInstr& inst) {
-  const TargetInstrDesc &desc = inst.getDesc();
+  const MCInstrDesc &desc = inst.getDesc();
   return desc.isTerminator() || desc.isBranch() || desc.isIndirectBranch();
 }
 
diff --git a/lib/Target/PowerPC/PPCHazardRecognizers.cpp b/lib/Target/PowerPC/PPCHazardRecognizers.cpp
index 74ecff5af6..cddc9d858a 100644
--- a/lib/Target/PowerPC/PPCHazardRecognizers.cpp
+++ b/lib/Target/PowerPC/PPCHazardRecognizers.cpp
@@ -73,12 +73,12 @@ PPCHazardRecognizer970::GetInstrType(unsigned Opcode,
   }
   Opcode = ~Opcode;
 
-  const TargetInstrDesc &TID = TII.get(Opcode);
+  const MCInstrDesc &MCID = TII.get(Opcode);
 
-  isLoad  = TID.mayLoad();
-  isStore = TID.mayStore();
+  isLoad  = MCID.mayLoad();
+  isStore = MCID.mayStore();
 
-  uint64_t TSFlags = TID.TSFlags;
+  uint64_t TSFlags = MCID.TSFlags;
 
   isFirst   = TSFlags & PPCII::PPC970_First;
   isSingle  = TSFlags & PPCII::PPC970_Single;
diff --git a/lib/Target/PowerPC/PPCInstrInfo.cpp b/lib/Target/PowerPC/PPCInstrInfo.cpp
index 53b049135e..c3fbc8be53 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.cpp
+++ b/lib/Target/PowerPC/PPCInstrInfo.cpp
@@ -120,7 +120,7 @@ PPCInstrInfo::commuteInstruction(MachineInstr *MI, bool NewMI) const {
   // destination register as well.
   if (Reg0 == Reg1) {
     // Must be two address instruction!
-    assert(MI->getDesc().getOperandConstraint(0, TOI::TIED_TO) &&
+    assert(MI->getDesc().getOperandConstraint(0, MCOI::TIED_TO) &&
            "Expecting a two-address instruction!");
     Reg2IsKill = false;
     ChangeReg0 = true;
@@ -315,12 +315,12 @@ void PPCInstrInfo::copyPhysReg(MachineBasicBlock &MBB,
   else
     llvm_unreachable("Impossible reg-to-reg copy");
 
-  const TargetInstrDesc &TID = get(Opc);
-  if (TID.getNumOperands() == 3)
-    BuildMI(MBB, I, DL, TID, DestReg)
+  const MCInstrDesc &MCID = get(Opc);
+  if (MCID.getNumOperands() == 3)
+    BuildMI(MBB, I, DL, MCID, DestReg)
       .addReg(SrcReg).addReg(SrcReg, getKillRegState(KillSrc));
   else
-    BuildMI(MBB, I, DL, TID, DestReg).addReg(SrcReg, getKillRegState(KillSrc));
+    BuildMI(MBB, I, DL, MCID, DestReg).addReg(SrcReg, getKillRegState(KillSrc));
 }
 
 bool
diff --git a/lib/Target/Sparc/DelaySlotFiller.cpp b/lib/Target/Sparc/DelaySlotFiller.cpp
index 4b12852ef8..dab35e5e4e 100644
--- a/lib/Target/Sparc/DelaySlotFiller.cpp
+++ b/lib/Target/Sparc/DelaySlotFiller.cpp
@@ -298,7 +298,7 @@ bool Filler::isDelayFiller(MachineBasicBlock &MBB,
     return false;
   if (candidate->getOpcode() == SP::UNIMP)
     return true;
-  const TargetInstrDesc &prevdesc = (--candidate)->getDesc();
+  const MCInstrDesc &prevdesc = (--candidate)->getDesc();
   return prevdesc.hasDelaySlot();
 }
 
diff --git a/lib/Target/SystemZ/SystemZInstrBuilder.h b/lib/Target/SystemZ/SystemZInstrBuilder.h
index 2f2ef08dec..ab45ec5984 100644
--- a/lib/Target/SystemZ/SystemZInstrBuilder.h
+++ b/lib/Target/SystemZ/SystemZInstrBuilder.h
@@ -108,11 +108,11 @@ addFrameReference(const MachineInstrBuilder &MIB, int FI, int Offset = 0) {
   MachineInstr *MI = MIB;
   MachineFunction &MF = *MI->getParent()->getParent();
   MachineFrameInfo &MFI = *MF.getFrameInfo();
-  const TargetInstrDesc &TID = MI->getDesc();
+  const MCInstrDesc &MCID = MI->getDesc();
   unsigned Flags = 0;
-  if (TID.mayLoad())
+  if (MCID.mayLoad())
     Flags |= MachineMemOperand::MOLoad;
-  if (TID.mayStore())
+  if (MCID.mayStore())
     Flags |= MachineMemOperand::MOStore;
   MachineMemOperand *MMO =
     MF.getMachineMemOperand(MachinePointerInfo(
diff --git a/lib/Target/SystemZ/SystemZInstrInfo.cpp b/lib/Target/SystemZ/SystemZInstrInfo.cpp
index be5280323c..9488defc0a 100644
--- a/lib/Target/SystemZ/SystemZInstrInfo.cpp
+++ b/lib/Target/SystemZ/SystemZInstrInfo.cpp
@@ -199,13 +199,13 @@ ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const {
 }
 
 bool SystemZInstrInfo::isUnpredicatedTerminator(const MachineInstr *MI) const {
-  const TargetInstrDesc &TID = MI->getDesc();
-  if (!TID.isTerminator()) return false;
+  const MCInstrDesc &MCID = MI->getDesc();
+  if (!MCID.isTerminator()) return false;
 
   // Conditional branch is a special case.
-  if (TID.isBranch() && !TID.isBarrier())
+  if (MCID.isBranch() && !MCID.isBarrier())
     return true;
-  if (!TID.isPredicable())
+  if (!MCID.isPredicable())
     return true;
   return !isPredicated(MI);
 }
@@ -343,7 +343,7 @@ SystemZInstrInfo::InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
   return Count;
 }
 
-const TargetInstrDesc&
+const MCInstrDesc&
 SystemZInstrInfo::getBrCond(SystemZCC::CondCodes CC) const {
   switch (CC) {
   default:
@@ -408,7 +408,7 @@ SystemZInstrInfo::getOppositeCondition(SystemZCC::CondCodes CC) const {
   }
 }
 
-const TargetInstrDesc&
+const MCInstrDesc&
 SystemZInstrInfo::getLongDispOpc(unsigned Opc) const {
   switch (Opc) {
   default:
diff --git a/lib/Target/SystemZ/SystemZInstrInfo.h b/lib/Target/SystemZ/SystemZInstrInfo.h
index 6cb7200102..a39c21e436 100644
--- a/lib/Target/SystemZ/SystemZInstrInfo.h
+++ b/lib/Target/SystemZ/SystemZInstrInfo.h
@@ -94,10 +94,10 @@ public:
 
   SystemZCC::CondCodes getOppositeCondition(SystemZCC::CondCodes CC) const;
   SystemZCC::CondCodes getCondFromBranchOpc(unsigned Opc) const;
-  const TargetInstrDesc& getBrCond(SystemZCC::CondCodes CC) const;
-  const TargetInstrDesc& getLongDispOpc(unsigned Opc) const;
+  const MCInstrDesc& getBrCond(SystemZCC::CondCodes CC) const;
+  const MCInstrDesc& getLongDispOpc(unsigned Opc) const;
 
-  const TargetInstrDesc& getMemoryInstr(unsigned Opc, int64_t Offset = 0) const {
+  const MCInstrDesc& getMemoryInstr(unsigned Opc, int64_t Offset = 0) const {
     if (Offset < 0 || Offset >= 4096)
       return getLongDispOpc(Opc);
     else
diff --git a/lib/Target/TargetInstrInfo.cpp b/lib/Target/TargetInstrInfo.cpp
index 2cb89f4440..66f8f60723 100644
--- a/lib/Target/TargetInstrInfo.cpp
+++ b/lib/Target/TargetInstrInfo.cpp
@@ -24,22 +24,21 @@ using namespace llvm;
 //  TargetInstrInfo
 //===----------------------------------------------------------------------===//
 
-TargetInstrInfo::TargetInstrInfo(const TargetInstrDesc* Desc,
-                                 unsigned numOpcodes)
-  : Descriptors(Desc), NumOpcodes(numOpcodes) {
+TargetInstrInfo::TargetInstrInfo(const MCInstrDesc* Desc, unsigned numOpcodes) {
+  InitMCInstrInfo(Desc, numOpcodes);
 }
 
 TargetInstrInfo::~TargetInstrInfo() {
 }
 
 const TargetRegisterClass*
-TargetInstrInfo::getRegClass(const TargetInstrDesc &TID, unsigned OpNum,
+TargetInstrInfo::getRegClass(const MCInstrDesc &MCID, unsigned OpNum,
                              const TargetRegisterInfo *TRI) const {
-  if (OpNum >= TID.getNumOperands())
+  if (OpNum >= MCID.getNumOperands())
     return 0;
 
-  short RegClass = TID.OpInfo[OpNum].RegClass;
-  if (TID.OpInfo[OpNum].isLookupPtrRegClass())
+  short RegClass = MCID.OpInfo[OpNum].RegClass;
+  if (MCID.OpInfo[OpNum].isLookupPtrRegClass())
     return TRI->getPointerRegClass(RegClass);
 
   // Instructions like INSERT_SUBREG do not have fixed register classes.
@@ -135,13 +134,13 @@ void TargetInstrInfo::insertNoop(MachineBasicBlock &MBB,
 
 
 bool TargetInstrInfo::isUnpredicatedTerminator(const MachineInstr *MI) const {
-  const TargetInstrDesc &TID = MI->getDesc();
-  if (!TID.isTerminator()) return false;
+  const MCInstrDesc &MCID = MI->getDesc();
+  if (!MCID.isTerminator()) return false;
 
   // Conditional branch is a special case.
-  if (TID.isBranch() && !TID.isBarrier())
+  if (MCID.isBranch() && !MCID.isBarrier())
     return true;
-  if (!TID.isPredicable())
+  if (!MCID.isPredicable())
     return true;
   return !isPredicated(MI);
 }
diff --git a/lib/Target/X86/X86CodeEmitter.cpp b/lib/Target/X86/X86CodeEmitter.cpp
index 421e221d20..4b11db7c03 100644
--- a/lib/Target/X86/X86CodeEmitter.cpp
+++ b/lib/Target/X86/X86CodeEmitter.cpp
@@ -68,7 +68,7 @@ namespace {
       return "X86 Machine Code Emitter";
     }
 
-    void emitInstruction(MachineInstr &MI, const TargetInstrDesc *Desc);
+    void emitInstruction(MachineInstr &MI, const MCInstrDesc *Desc);
     
     void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.setPreservesAll();
@@ -132,7 +132,7 @@ bool Emitter<CodeEmitter>::runOnMachineFunction(MachineFunction &MF) {
       MCE.StartMachineBasicBlock(MBB);
       for (MachineBasicBlock::iterator I = MBB->begin(), E = MBB->end();
            I != E; ++I) {
-        const TargetInstrDesc &Desc = I->getDesc();
+        const MCInstrDesc &Desc = I->getDesc();
         emitInstruction(*I, &Desc);
         // MOVPC32r is basically a call plus a pop instruction.
         if (Desc.getOpcode() == X86::MOVPC32r)
@@ -150,7 +150,7 @@ bool Emitter<CodeEmitter>::runOnMachineFunction(MachineFunction &MF) {
 /// size, and 3) use of X86-64 extended registers.
 static unsigned determineREX(const MachineInstr &MI) {
   unsigned REX = 0;
-  const TargetInstrDesc &Desc = MI.getDesc();
+  const MCInstrDesc &Desc = MI.getDesc();
   
   // Pseudo instructions do not need REX prefix byte.
   if ((Desc.TSFlags & X86II::FormMask) == X86II::Pseudo)
@@ -161,7 +161,7 @@ static unsigned determineREX(const MachineInstr &MI) {
   unsigned NumOps = Desc.getNumOperands();
   if (NumOps) {
     bool isTwoAddr = NumOps > 1 &&
-    Desc.getOperandConstraint(1, TOI::TIED_TO) != -1;
+    Desc.getOperandConstraint(1, MCOI::TIED_TO) != -1;
     
     // If it accesses SPL, BPL, SIL, or DIL, then it requires a 0x40 REX prefix.
     unsigned i = isTwoAddr ? 1 : 0;
@@ -598,7 +598,7 @@ void Emitter<CodeEmitter>::emitMemModRMByte(const MachineInstr &MI,
 
 template<class CodeEmitter>
 void Emitter<CodeEmitter>::emitInstruction(MachineInstr &MI,
-                                           const TargetInstrDesc *Desc) {
+                                           const MCInstrDesc *Desc) {
   DEBUG(dbgs() << MI);
   
   // If this is a pseudo instruction, lower it.
@@ -708,9 +708,9 @@ void Emitter<CodeEmitter>::emitInstruction(MachineInstr &MI,
   // If this is a two-address instruction, skip one of the register operands.
   unsigned NumOps = Desc->getNumOperands();
   unsigned CurOp = 0;
-  if (NumOps > 1 && Desc->getOperandConstraint(1, TOI::TIED_TO) != -1)
+  if (NumOps > 1 && Desc->getOperandConstraint(1, MCOI::TIED_TO) != -1)
     ++CurOp;
-  else if (NumOps > 2 && Desc->getOperandConstraint(NumOps-1, TOI::TIED_TO)== 0)
+  else if (NumOps > 2 && Desc->getOperandConstraint(NumOps-1,MCOI::TIED_TO)== 0)
     // Skip the last source operand that is tied_to the dest reg. e.g. LXADD32
     --NumOps;
 
diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp
index a4d1c675ee..09ce538bf9 100644
--- a/lib/Target/X86/X86FastISel.cpp
+++ b/lib/Target/X86/X86FastISel.cpp
@@ -1393,7 +1393,7 @@ bool X86FastISel::X86VisitIntrinsicCall(const IntrinsicInst &I) {
     assert(DI->getAddress() && "Null address should be checked earlier!");
     if (!X86SelectAddress(DI->getAddress(), AM))
       return false;
-    const TargetInstrDesc &II = TII.get(TargetOpcode::DBG_VALUE);
+    const MCInstrDesc &II = TII.get(TargetOpcode::DBG_VALUE);
     // FIXME may need to add RegState::Debug to any registers produced,
     // although ESP/EBP should be the only ones at the moment.
     addFullAddress(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, II), AM).
diff --git a/lib/Target/X86/X86InstrBuilder.h b/lib/Target/X86/X86InstrBuilder.h
index 1ea8071053..0245e5c096 100644
--- a/lib/Target/X86/X86InstrBuilder.h
+++ b/lib/Target/X86/X86InstrBuilder.h
@@ -150,11 +150,11 @@ addFrameReference(const MachineInstrBuilder &MIB, int FI, int Offset = 0) {
   MachineInstr *MI = MIB;
   MachineFunction &MF = *MI->getParent()->getParent();
   MachineFrameInfo &MFI = *MF.getFrameInfo();
-  const TargetInstrDesc &TID = MI->getDesc();
+  const MCInstrDesc &MCID = MI->getDesc();
   unsigned Flags = 0;
-  if (TID.mayLoad())
+  if (MCID.mayLoad())
     Flags |= MachineMemOperand::MOLoad;
-  if (TID.mayStore())
+  if (MCID.mayStore())
     Flags |= MachineMemOperand::MOStore;
   MachineMemOperand *MMO =
     MF.getMachineMemOperand(MachinePointerInfo::getFixedStack(FI, Offset),
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index d4c279c04c..f875010e04 100644
--- a/lib/Target/X86/X86InstrInfo.cpp
+++ b/lib/Target/X86/X86InstrInfo.cpp
@@ -1689,13 +1689,13 @@ X86::CondCode X86::GetOppositeBranchCondition(X86::CondCode CC) {
 }
 
 bool X86InstrInfo::isUnpredicatedTerminator(const MachineInstr *MI) const {
-  const TargetInstrDesc &TID = MI->getDesc();
-  if (!TID.isTerminator()) return false;
+  const MCInstrDesc &MCID = MI->getDesc();
+  if (!MCID.isTerminator()) return false;
 
   // Conditional branch is a special case.
-  if (TID.isBranch() && !TID.isBarrier())
+  if (MCID.isBranch() && !MCID.isBarrier())
     return true;
-  if (!TID.isPredicable())
+  if (!MCID.isPredicable())
     return true;
   return !isPredicated(MI);
 }
@@ -2225,7 +2225,7 @@ X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
   bool isTwoAddrFold = false;
   unsigned NumOps = MI->getDesc().getNumOperands();
   bool isTwoAddr = NumOps > 1 &&
-    MI->getDesc().getOperandConstraint(1, TOI::TIED_TO) != -1;
+    MI->getDesc().getOperandConstraint(1, MCOI::TIED_TO) != -1;
 
   // FIXME: AsmPrinter doesn't know how to handle
   // X86II::MO_GOT_ABSOLUTE_ADDRESS after folding.
@@ -2543,7 +2543,7 @@ bool X86InstrInfo::canFoldMemoryOperand(const MachineInstr *MI,
   unsigned Opc = MI->getOpcode();
   unsigned NumOps = MI->getDesc().getNumOperands();
   bool isTwoAddr = NumOps > 1 &&
-    MI->getDesc().getOperandConstraint(1, TOI::TIED_TO) != -1;
+    MI->getDesc().getOperandConstraint(1, MCOI::TIED_TO) != -1;
 
   // Folding a memory location into the two-address part of a two-address
   // instruction is different than folding it other places.  It requires
@@ -2589,8 +2589,8 @@ bool X86InstrInfo::unfoldMemoryOperand(MachineFunction &MF, MachineInstr *MI,
     return false;
   UnfoldStore &= FoldedStore;
 
-  const TargetInstrDesc &TID = get(Opc);
-  const TargetRegisterClass *RC = getRegClass(TID, Index, &RI);
+  const MCInstrDesc &MCID = get(Opc);
+  const TargetRegisterClass *RC = getRegClass(MCID, Index, &RI);
   if (!MI->hasOneMemOperand() &&
       RC == &X86::VR128RegClass &&
       !TM.getSubtarget<X86Subtarget>().isUnalignedMemAccessFast())
@@ -2632,7 +2632,7 @@ bool X86InstrInfo::unfoldMemoryOperand(MachineFunction &MF, MachineInstr *MI,
   }
 
   // Emit the data processing instruction.
-  MachineInstr *DataMI = MF.CreateMachineInstr(TID, MI->getDebugLoc(), true);
+  MachineInstr *DataMI = MF.CreateMachineInstr(MCID, MI->getDebugLoc(), true);
   MachineInstrBuilder MIB(DataMI);
 
   if (FoldedStore)
@@ -2685,7 +2685,7 @@ bool X86InstrInfo::unfoldMemoryOperand(MachineFunction &MF, MachineInstr *MI,
 
   // Emit the store instruction.
   if (UnfoldStore) {
-    const TargetRegisterClass *DstRC = getRegClass(TID, 0, &RI);
+    const TargetRegisterClass *DstRC = getRegClass(MCID, 0, &RI);
     std::pair<MachineInstr::mmo_iterator,
               MachineInstr::mmo_iterator> MMOs =
       MF.extractStoreMemRefs(MI->memoperands_begin(),
@@ -2710,9 +2710,9 @@ X86InstrInfo::unfoldMemoryOperand(SelectionDAG &DAG, SDNode *N,
   unsigned Index = I->second.second & 0xf;
   bool FoldedLoad = I->second.second & (1 << 4);
   bool FoldedStore = I->second.second & (1 << 5);
-  const TargetInstrDesc &TID = get(Opc);
-  const TargetRegisterClass *RC = getRegClass(TID, Index, &RI);
-  unsigned NumDefs = TID.NumDefs;
+  const MCInstrDesc &MCID = get(Opc);
+  const TargetRegisterClass *RC = getRegClass(MCID, Index, &RI);
+  unsigned NumDefs = MCID.NumDefs;
   std::vector<SDValue> AddrOps;
   std::vector<SDValue> BeforeOps;
   std::vector<SDValue> AfterOps;
@@ -2756,13 +2756,13 @@ X86InstrInfo::unfoldMemoryOperand(SelectionDAG &DAG, SDNode *N,
   // Emit the data processing instruction.
   std::vector<EVT> VTs;
   const TargetRegisterClass *DstRC = 0;
-  if (TID.getNumDefs() > 0) {
-    DstRC = getRegClass(TID, 0, &RI);
+  if (MCID.getNumDefs() > 0) {
+    DstRC = getRegClass(MCID, 0, &RI);
     VTs.push_back(*DstRC->vt_begin());
   }
   for (unsigned i = 0, e = N->getNumValues(); i != e; ++i) {
     EVT VT = N->getValueType(i);
-    if (VT != MVT::Other && i >= (unsigned)TID.getNumDefs())
+    if (VT != MVT::Other && i >= (unsigned)MCID.getNumDefs())
       VTs.push_back(VT);
   }
   if (Load)
diff --git a/lib/Target/X86/X86MCCodeEmitter.cpp b/lib/Target/X86/X86MCCodeEmitter.cpp
index 55aceba9f2..04149e7348 100644
--- a/lib/Target/X86/X86MCCodeEmitter.cpp
+++ b/lib/Target/X86/X86MCCodeEmitter.cpp
@@ -111,7 +111,7 @@ public:
                          SmallVectorImpl<MCFixup> &Fixups) const;
 
   void EmitVEXOpcodePrefix(uint64_t TSFlags, unsigned &CurByte, int MemOperand,
-                           const MCInst &MI, const TargetInstrDesc &Desc,
+                           const MCInst &MI, const MCInstrDesc &Desc,
                            raw_ostream &OS) const;
 
   void EmitSegmentOverridePrefix(uint64_t TSFlags, unsigned &CurByte,
@@ -119,7 +119,7 @@ public:
                                  raw_ostream &OS) const;
 
   void EmitOpcodePrefix(uint64_t TSFlags, unsigned &CurByte, int MemOperand,
-                        const MCInst &MI, const TargetInstrDesc &Desc,
+                        const MCInst &MI, const MCInstrDesc &Desc,
                         raw_ostream &OS) const;
 };
 
@@ -379,7 +379,7 @@ void X86MCCodeEmitter::EmitMemModRMByte(const MCInst &MI, unsigned Op,
 /// called VEX.
 void X86MCCodeEmitter::EmitVEXOpcodePrefix(uint64_t TSFlags, unsigned &CurByte,
                                            int MemOperand, const MCInst &MI,
-                                           const TargetInstrDesc &Desc,
+                                           const MCInstrDesc &Desc,
                                            raw_ostream &OS) const {
   bool HasVEX_4V = false;
   if ((TSFlags >> X86II::VEXShift) & X86II::VEX_4V)
@@ -586,7 +586,7 @@ void X86MCCodeEmitter::EmitVEXOpcodePrefix(uint64_t TSFlags, unsigned &CurByte,
 /// REX prefix which specifies 1) 64-bit instructions, 2) non-default operand
 /// size, and 3) use of X86-64 extended registers.
 static unsigned DetermineREXPrefix(const MCInst &MI, uint64_t TSFlags,
-                                   const TargetInstrDesc &Desc) {
+                                   const MCInstrDesc &Desc) {
   unsigned REX = 0;
   if (TSFlags & X86II::REX_W)
     REX |= 1 << 3; // set REX.W
@@ -596,7 +596,7 @@ static unsigned DetermineREXPrefix(const MCInst &MI, uint64_t TSFlags,
   unsigned NumOps = MI.getNumOperands();
   // FIXME: MCInst should explicitize the two-addrness.
   bool isTwoAddr = NumOps > 1 &&
-                      Desc.getOperandConstraint(1, TOI::TIED_TO) != -1;
+                      Desc.getOperandConstraint(1, MCOI::TIED_TO) != -1;
 
   // If it accesses SPL, BPL, SIL, or DIL, then it requires a 0x40 REX prefix.
   unsigned i = isTwoAddr ? 1 : 0;
@@ -713,7 +713,7 @@ void X86MCCodeEmitter::EmitSegmentOverridePrefix(uint64_t TSFlags,
 /// Not present, it is -1.
 void X86MCCodeEmitter::EmitOpcodePrefix(uint64_t TSFlags, unsigned &CurByte,
                                         int MemOperand, const MCInst &MI,
-                                        const TargetInstrDesc &Desc,
+                                        const MCInstrDesc &Desc,
                                         raw_ostream &OS) const {
 
   // Emit the lock opcode prefix as needed.
@@ -803,7 +803,7 @@ void X86MCCodeEmitter::
 EncodeInstruction(const MCInst &MI, raw_ostream &OS,
                   SmallVectorImpl<MCFixup> &Fixups) const {
   unsigned Opcode = MI.getOpcode();
-  const TargetInstrDesc &Desc = TII.get(Opcode);
+  const MCInstrDesc &Desc = TII.get(Opcode);
   uint64_t TSFlags = Desc.TSFlags;
 
   // Pseudo instructions don't get encoded.
@@ -814,9 +814,9 @@ EncodeInstruction(const MCInst &MI, raw_ostream &OS,
   // FIXME: This should be handled during MCInst lowering.
   unsigned NumOps = Desc.getNumOperands();
   unsigned CurOp = 0;
-  if (NumOps > 1 && Desc.getOperandConstraint(1, TOI::TIED_TO) != -1)
+  if (NumOps > 1 && Desc.getOperandConstraint(1, MCOI::TIED_TO) != -1)
     ++CurOp;
-  else if (NumOps > 2 && Desc.getOperandConstraint(NumOps-1, TOI::TIED_TO)== 0)
+  else if (NumOps > 2 && Desc.getOperandConstraint(NumOps-1, MCOI::TIED_TO)== 0)
     // Skip the last source operand that is tied_to the dest reg. e.g. LXADD32
     --NumOps;