Updating branches/google/testing to r177703testing

git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/google/testing@177985 91177308-0d34-0410-b5e6-96231b3b80d8

37 files changed, 260 insertions, 220 deletions

diff --git a/include/llvm/ADT/APSInt.h b/include/llvm/ADT/APSInt.h
index 42e123930d..11be4c513e 100644
--- a/include/llvm/ADT/APSInt.h
+++ b/include/llvm/ADT/APSInt.h
@@ -161,11 +161,11 @@ public:
   }
 
   APSInt& operator++() {
-    static_cast<APInt&>(*this)++;
+    ++(static_cast<APInt&>(*this));
     return *this;
   }
   APSInt& operator--() {
-    static_cast<APInt&>(*this)--;
+    --(static_cast<APInt&>(*this));
     return *this;
   }
   APSInt operator++(int) {
diff --git a/include/llvm/ADT/PostOrderIterator.h b/include/llvm/ADT/PostOrderIterator.h
index 7f6350e444..59fa3f39c9 100644
--- a/include/llvm/ADT/PostOrderIterator.h
+++ b/include/llvm/ADT/PostOrderIterator.h
@@ -260,7 +260,7 @@ class ReversePostOrderTraversal {
   typedef typename GT::NodeType NodeType;
   std::vector<NodeType*> Blocks;       // Block list in normal PO order
   inline void Initialize(NodeType *BB) {
-    copy(po_begin(BB), po_end(BB), back_inserter(Blocks));
+    std::copy(po_begin(BB), po_end(BB), std::back_inserter(Blocks));
   }
 public:
   typedef typename std::vector<NodeType*>::reverse_iterator rpo_iterator;
diff --git a/include/llvm/ADT/SmallBitVector.h b/include/llvm/ADT/SmallBitVector.h
index 62620fa267..652492a153 100644
--- a/include/llvm/ADT/SmallBitVector.h
+++ b/include/llvm/ADT/SmallBitVector.h
@@ -178,9 +178,9 @@ public:
   unsigned count() const {
     if (isSmall()) {
       uintptr_t Bits = getSmallBits();
-      if (sizeof(uintptr_t) * CHAR_BIT == 32)
+      if (NumBaseBits == 32)
         return CountPopulation_32(Bits);
-      if (sizeof(uintptr_t) * CHAR_BIT == 64)
+      if (NumBaseBits == 64)
         return CountPopulation_64(Bits);
       llvm_unreachable("Unsupported!");
     }
@@ -215,9 +215,9 @@ public:
       uintptr_t Bits = getSmallBits();
       if (Bits == 0)
         return -1;
-      if (sizeof(uintptr_t) * CHAR_BIT == 32)
+      if (NumBaseBits == 32)
         return CountTrailingZeros_32(Bits);
-      if (sizeof(uintptr_t) * CHAR_BIT == 64)
+      if (NumBaseBits == 64)
         return CountTrailingZeros_64(Bits);
       llvm_unreachable("Unsupported!");
     }
@@ -233,9 +233,9 @@ public:
       Bits &= ~uintptr_t(0) << (Prev + 1);
       if (Bits == 0 || Prev + 1 >= getSmallSize())
         return -1;
-      if (sizeof(uintptr_t) * CHAR_BIT == 32)
+      if (NumBaseBits == 32)
         return CountTrailingZeros_32(Bits);
-      if (sizeof(uintptr_t) * CHAR_BIT == 64)
+      if (NumBaseBits == 64)
         return CountTrailingZeros_64(Bits);
       llvm_unreachable("Unsupported!");
     }
diff --git a/include/llvm/ADT/StringSet.h b/include/llvm/ADT/StringSet.h
index b69a964a23..7bea577f34 100644
--- a/include/llvm/ADT/StringSet.h
+++ b/include/llvm/ADT/StringSet.h
@@ -18,23 +18,25 @@
 
 namespace llvm {
 
-  /// StringSet - A wrapper for StringMap that provides set-like
-  /// functionality.  Only insert() and count() methods are used by my
-  /// code.
+  /// StringSet - A wrapper for StringMap that provides set-like functionality.
   template <class AllocatorTy = llvm::MallocAllocator>
   class StringSet : public llvm::StringMap<char, AllocatorTy> {
     typedef llvm::StringMap<char, AllocatorTy> base;
   public:
-    bool insert(StringRef InLang) {
-      assert(!InLang.empty());
-      const char *KeyStart = InLang.data();
-      const char *KeyEnd = KeyStart + InLang.size();
-      llvm::StringMapEntry<char> *Entry = llvm::StringMapEntry<char>::
-                            Create(KeyStart, KeyEnd, base::getAllocator(), '+');
-      if (!base::insert(Entry)) {
-        Entry->Destroy(base::getAllocator());
+
+    /// insert - Insert the specified key into the set.  If the key already
+    /// exists in the set, return false and ignore the request, otherwise insert
+    /// it and return true.
+    bool insert(StringRef Key) {
+      // Get or create the map entry for the key; if it doesn't exist the value
+      // type will be default constructed which we use to detect insert.
+      //
+      // We use '+' as the sentinel value in the map.
+      assert(!Key.empty());
+      StringMapEntry<char> &Entry = this->GetOrCreateValue(Key);
+      if (Entry.getValue() == '+')
         return false;
-      }
+      Entry.setValue('+');
       return true;
     }
   };
diff --git a/include/llvm/Analysis/AliasSetTracker.h b/include/llvm/Analysis/AliasSetTracker.h
index 163331c262..da007072e5 100644
--- a/include/llvm/Analysis/AliasSetTracker.h
+++ b/include/llvm/Analysis/AliasSetTracker.h
@@ -20,7 +20,6 @@
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/ilist.h"
 #include "llvm/ADT/ilist_node.h"
-#include "llvm/Support/CallSite.h"
 #include "llvm/Support/ValueHandle.h"
 #include <vector>
 
diff --git a/include/llvm/Analysis/BlockFrequencyImpl.h b/include/llvm/Analysis/BlockFrequencyImpl.h
index f220c58244..b3e2d18eb2 100644
--- a/include/llvm/Analysis/BlockFrequencyImpl.h
+++ b/include/llvm/Analysis/BlockFrequencyImpl.h
@@ -271,7 +271,7 @@ class BlockFrequencyImpl {
 
     BlockT *EntryBlock = fn->begin();
 
-    copy(po_begin(EntryBlock), po_end(EntryBlock), back_inserter(POT));
+    std::copy(po_begin(EntryBlock), po_end(EntryBlock), std::back_inserter(POT));
 
     unsigned RPOidx = 0;
     for (rpot_iterator I = rpot_begin(), E = rpot_end(); I != E; ++I) {
diff --git a/include/llvm/CodeGen/LiveIntervalAnalysis.h b/include/llvm/CodeGen/LiveIntervalAnalysis.h
index 4632368157..7d72f37255 100644
--- a/include/llvm/CodeGen/LiveIntervalAnalysis.h
+++ b/include/llvm/CodeGen/LiveIntervalAnalysis.h
@@ -20,9 +20,7 @@
 #ifndef LLVM_CODEGEN_LIVEINTERVAL_ANALYSIS_H
 #define LLVM_CODEGEN_LIVEINTERVAL_ANALYSIS_H
 
-#include "llvm/ADT/BitVector.h"
 #include "llvm/ADT/IndexedMap.h"
-#include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/CodeGen/LiveInterval.h"
 #include "llvm/CodeGen/MachineBasicBlock.h"
@@ -36,6 +34,7 @@
 namespace llvm {
 
   class AliasAnalysis;
+  class BitVector;
   class LiveRangeCalc;
   class LiveVariables;
   class MachineDominatorTree;
diff --git a/include/llvm/CodeGen/LiveRangeEdit.h b/include/llvm/CodeGen/LiveRangeEdit.h
index def7b00ce7..8a32a3c11a 100644
--- a/include/llvm/CodeGen/LiveRangeEdit.h
+++ b/include/llvm/CodeGen/LiveRangeEdit.h
@@ -83,7 +83,7 @@ private:
   /// allUsesAvailableAt - Return true if all registers used by OrigMI at
   /// OrigIdx are also available with the same value at UseIdx.
   bool allUsesAvailableAt(const MachineInstr *OrigMI, SlotIndex OrigIdx,
-                          SlotIndex UseIdx);
+                          SlotIndex UseIdx) const;
 
   /// foldAsLoad - If LI has a single use and a single def that can be folded as
   /// a load, eliminate the register by folding the def into the use.
diff --git a/include/llvm/CodeGen/LiveVariables.h b/include/llvm/CodeGen/LiveVariables.h
index 3c5ed9297e..6628fd278e 100644
--- a/include/llvm/CodeGen/LiveVariables.h
+++ b/include/llvm/CodeGen/LiveVariables.h
@@ -29,21 +29,19 @@
 #ifndef LLVM_CODEGEN_LIVEVARIABLES_H
 #define LLVM_CODEGEN_LIVEVARIABLES_H
 
-#include "llvm/ADT/BitVector.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/IndexedMap.h"
 #include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/SparseBitVector.h"
-#include "llvm/CodeGen/MachineBasicBlock.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/CodeGen/MachineInstr.h"
 #include "llvm/Target/TargetRegisterInfo.h"
 
 namespace llvm {
 
+class MachineBasicBlock;
 class MachineRegisterInfo;
-class TargetRegisterInfo;
 
 class LiveVariables : public MachineFunctionPass {
 public:
diff --git a/include/llvm/CodeGen/MachineBranchProbabilityInfo.h b/include/llvm/CodeGen/MachineBranchProbabilityInfo.h
index 1c9bdd954c..98dd03b45c 100644
--- a/include/llvm/CodeGen/MachineBranchProbabilityInfo.h
+++ b/include/llvm/CodeGen/MachineBranchProbabilityInfo.h
@@ -1,4 +1,3 @@
-
 //==- MachineBranchProbabilityInfo.h - Machine Branch Probability Analysis -==//
 //
 //                     The LLVM Compiler Infrastructure
diff --git a/include/llvm/CodeGen/MachineFrameInfo.h b/include/llvm/CodeGen/MachineFrameInfo.h
index 93d77287d7..cdec7e6637 100644
--- a/include/llvm/CodeGen/MachineFrameInfo.h
+++ b/include/llvm/CodeGen/MachineFrameInfo.h
@@ -419,6 +419,9 @@ public:
   ///
   void setStackSize(uint64_t Size) { StackSize = Size; }
 
+  /// Estimate and return the size of the stack frame.
+  unsigned estimateStackSize(const MachineFunction &MF) const;
+
   /// getOffsetAdjustment - Return the correction for frame offsets.
   ///
   int getOffsetAdjustment() const { return OffsetAdjustment; }
diff --git a/include/llvm/CodeGen/MachineModuleInfo.h b/include/llvm/CodeGen/MachineModuleInfo.h
index 1db6252ef4..a3acec8095 100644
--- a/include/llvm/CodeGen/MachineModuleInfo.h
+++ b/include/llvm/CodeGen/MachineModuleInfo.h
@@ -295,7 +295,7 @@ public:
   /// isUsedFunction - Return true if the functions in the llvm.used list.  This
   /// does not return true for things in llvm.compiler.used unless they are also
   /// in llvm.used.
-  bool isUsedFunction(const Function *F) {
+  bool isUsedFunction(const Function *F) const {
     return UsedFunctions.count(F);
   }
 
diff --git a/include/llvm/DIBuilder.h b/include/llvm/DIBuilder.h
index d59847558a..de6c38f0e0 100644
--- a/include/llvm/DIBuilder.h
+++ b/include/llvm/DIBuilder.h
@@ -375,10 +375,6 @@ namespace llvm {
     /// flag set.
     DIType createObjectPointerType(DIType Ty);
 
-    /// createTemporaryType - Create a temporary forward-declared type.
-    DIType createTemporaryType();
-    DIType createTemporaryType(DIFile F);
-
     /// createForwardDecl - Create a temporary forward-declared type.
     DIType createForwardDecl(unsigned Tag, StringRef Name, DIDescriptor Scope,
                              DIFile F, unsigned Line, unsigned RuntimeLang = 0,
@@ -411,6 +407,19 @@ namespace llvm {
     createGlobalVariable(StringRef Name, DIFile File, unsigned LineNo,
                          DIType Ty, bool isLocalToUnit, llvm::Value *Val);
 
+    /// \brief Create a new descriptor for the specified global.
+    /// @param Name        Name of the variable.
+    /// @param LinkageName Mangled variable name.
+    /// @param File        File where this variable is defined.
+    /// @param LineNo      Line number.
+    /// @param Ty          Variable Type.
+    /// @param isLocalToUnit Boolean flag indicate whether this variable is
+    ///                      externally visible or not.
+    /// @param Val         llvm::Value of the variable.
+    DIGlobalVariable
+    createGlobalVariable(StringRef Name, StringRef LinkageName, DIFile File,
+                         unsigned LineNo, DIType Ty, bool isLocalToUnit,
+                         llvm::Value *Val);
 
     /// createStaticVariable - Create a new descriptor for the specified 
     /// variable.
diff --git a/include/llvm/DebugInfo.h b/include/llvm/DebugInfo.h
index 42d94f4777..f6ac869a5f 100644
--- a/include/llvm/DebugInfo.h
+++ b/include/llvm/DebugInfo.h
@@ -169,6 +169,18 @@ namespace llvm {
     StringRef getDirectory() const;
   };
 
+  /// DIFile - This is a wrapper for a file.
+  class DIFile : public DIScope {
+    friend class DIDescriptor;
+  public:
+    explicit DIFile(const MDNode *N = 0) : DIScope(N) {
+      if (DbgNode && !isFile())
+        DbgNode = 0;
+    }
+    MDNode *getFileNode() const;
+    bool Verify() const;
+  };
+
   /// DICompileUnit - A wrapper for a compile unit.
   class DICompileUnit : public DIScope {
     friend class DIDescriptor;
@@ -176,50 +188,24 @@ namespace llvm {
   public:
     explicit DICompileUnit(const MDNode *N = 0) : DIScope(N) {}
 
-    unsigned getLanguage() const   { return getUnsignedField(2); }
-    StringRef getFilename() const  { return getStringField(3);   }
-    StringRef getDirectory() const { return getStringField(4);   }
-    StringRef getProducer() const  { return getStringField(5);   }
-
-    /// isMain - Each input file is encoded as a separate compile unit in LLVM
-    /// debugging information output. However, many target specific tool chains
-    /// prefer to encode only one compile unit in an object file. In this
-    /// situation, the LLVM code generator will include debugging information
-    /// entities in the compile unit that is marked as main compile unit. The
-    /// code generator accepts maximum one main compile unit per module. If a
-    /// module does not contain any main compile unit then the code generator
-    /// will emit multiple compile units in the output object file.
-    // TODO: This can be removed when we remove the legacy debug information.
-    bool isMain() const                { return getUnsignedField(6) != 0; }
-    bool isOptimized() const           { return getUnsignedField(7) != 0; }
-    StringRef getFlags() const       { return getStringField(8);   }
-    unsigned getRunTimeVersion() const { return getUnsignedField(9); }
+    unsigned getLanguage() const { return getUnsignedField(2); }
+    StringRef getProducer() const { return getStringField(3); }
+
+    bool isOptimized() const { return getUnsignedField(4) != 0; }
+    StringRef getFlags() const { return getStringField(5); }
+    unsigned getRunTimeVersion() const { return getUnsignedField(6); }
 
     DIArray getEnumTypes() const;
     DIArray getRetainedTypes() const;
     DIArray getSubprograms() const;
     DIArray getGlobalVariables() const;
 
-    StringRef getSplitDebugFilename() const { return getStringField(14); }
+    StringRef getSplitDebugFilename() const { return getStringField(11); }
 
     /// Verify - Verify that a compile unit is well formed.
     bool Verify() const;
   };
 
-  /// DIFile - This is a wrapper for a file.
-  class DIFile : public DIScope {
-    friend class DIDescriptor;
-    void printInternal(raw_ostream &OS) const {} // FIXME: Output something?
-  public:
-    explicit DIFile(const MDNode *N = 0) : DIScope(N) {
-      if (DbgNode && !isFile())
-        DbgNode = 0;
-    }
-    StringRef getFilename() const  { return getStringField(1);   }
-    StringRef getDirectory() const { return getStringField(2);   }
-    bool Verify() const;
-  };
-
   /// DIEnumerator - A wrapper for an enumerator (e.g. X and Y in 'enum {X,Y}').
   /// FIXME: it seems strange that this doesn't have either a reference to the
   /// type/precision or a file/line pair for location info.
@@ -250,9 +236,8 @@ namespace llvm {
     explicit DIType(const MDNode *N);
     explicit DIType() {}
 
-    DIScope getContext() const          { return getFieldAs<DIScope>(1); }
-    StringRef getName() const           { return getStringField(2);     }
-    DIFile getFile() const              { return getFieldAs<DIFile>(3); }
+    DIScope getContext() const          { return getFieldAs<DIScope>(2); }
+    StringRef getName() const           { return getStringField(3);     }
     unsigned getLineNumber() const      { return getUnsignedField(4); }
     uint64_t getSizeInBits() const      { return getUInt64Field(5); }
     uint64_t getAlignInBits() const     { return getUInt64Field(6); }
@@ -297,12 +282,6 @@ namespace llvm {
     bool isValid() const {
       return DbgNode && (isBasicType() || isDerivedType() || isCompositeType());
     }
-    StringRef getDirectory() const  {
-      return getFieldAs<DIFile>(3).getDirectory();
-    }
-    StringRef getFilename() const  {
-      return getFieldAs<DIFile>(3).getFilename();
-    }
 
     /// isUnsignedDIType - Return true if type encoding is unsigned.
     bool isUnsignedDIType();
@@ -435,78 +414,66 @@ namespace llvm {
     StringRef getName() const         { return getStringField(3); }
     StringRef getDisplayName() const  { return getStringField(4); }
     StringRef getLinkageName() const  { return getStringField(5); }
-    unsigned getLineNumber() const      { return getUnsignedField(7); }
-    DICompositeType getType() const { return getFieldAs<DICompositeType>(8); }
+    unsigned getLineNumber() const      { return getUnsignedField(6); }
+    DICompositeType getType() const { return getFieldAs<DICompositeType>(7); }
 
     /// getReturnTypeName - Subprogram return types are encoded either as
     /// DIType or as DICompositeType.
     StringRef getReturnTypeName() const {
-      DICompositeType DCT(getFieldAs<DICompositeType>(8));
+      DICompositeType DCT(getFieldAs<DICompositeType>(7));
       if (DCT.Verify()) {
         DIArray A = DCT.getTypeArray();
         DIType T(A.getElement(0));
         return T.getName();
       }
-      DIType T(getFieldAs<DIType>(8));
+      DIType T(getFieldAs<DIType>(7));
       return T.getName();
     }
 
     /// isLocalToUnit - Return true if this subprogram is local to the current
     /// compile unit, like 'static' in C.
-    unsigned isLocalToUnit() const     { return getUnsignedField(9); }
-    unsigned isDefinition() const      { return getUnsignedField(10); }
+    unsigned isLocalToUnit() const     { return getUnsignedField(8); }
+    unsigned isDefinition() const      { return getUnsignedField(9); }
 
-    unsigned getVirtuality() const { return getUnsignedField(11); }
-    unsigned getVirtualIndex() const { return getUnsignedField(12); }
+    unsigned getVirtuality() const { return getUnsignedField(10); }
+    unsigned getVirtualIndex() const { return getUnsignedField(11); }
 
     DICompositeType getContainingType() const {
-      return getFieldAs<DICompositeType>(13);
+      return getFieldAs<DICompositeType>(12);
     }
 
     unsigned getFlags() const {
-      return getUnsignedField(14);
+      return getUnsignedField(13);
     }
 
     unsigned isArtificial() const    {
-      return (getUnsignedField(14) & FlagArtificial) != 0;
+      return (getUnsignedField(13) & FlagArtificial) != 0;
     }
     /// isPrivate - Return true if this subprogram has "private"
     /// access specifier.
     bool isPrivate() const    {
-      return (getUnsignedField(14) & FlagPrivate) != 0;
+      return (getUnsignedField(13) & FlagPrivate) != 0;
     }
     /// isProtected - Return true if this subprogram has "protected"
     /// access specifier.
     bool isProtected() const    {
-      return (getUnsignedField(14) & FlagProtected) != 0;
+      return (getUnsignedField(13) & FlagProtected) != 0;
     }
     /// isExplicit - Return true if this subprogram is marked as explicit.
     bool isExplicit() const    {
-      return (getUnsignedField(14) & FlagExplicit) != 0;
+      return (getUnsignedField(13) & FlagExplicit) != 0;
     }
     /// isPrototyped - Return true if this subprogram is prototyped.
     bool isPrototyped() const    {
-      return (getUnsignedField(14) & FlagPrototyped) != 0;
+      return (getUnsignedField(13) & FlagPrototyped) != 0;
     }
 
     unsigned isOptimized() const;
 
-    StringRef getFilename() const    {
-      return getFieldAs<DIFile>(6).getFilename();
-    }
-
-    StringRef getDirectory() const   {
-      return getFieldAs<DIFile>(6).getDirectory();
-    }
-
-    DIFile getFile() const {
-      return getFieldAs<DIFile>(6);
-    }
-
     /// getScopeLineNumber - Get the beginning of the scope of the
     /// function, not necessarily where the name of the program
     /// starts.
-    unsigned getScopeLineNumber() const { return getUnsignedField(20); }
+    unsigned getScopeLineNumber() const { return getUnsignedField(19); }
 
     /// Verify - Verify that a subprogram descriptor is well formed.
     bool Verify() const;
@@ -515,11 +482,11 @@ namespace llvm {
     /// information for the function F.
     bool describes(const Function *F);
 
-    Function *getFunction() const { return getFunctionField(16); }
-    void replaceFunction(Function *F) { replaceFunctionField(16, F); }
-    DIArray getTemplateParams() const { return getFieldAs<DIArray>(17); }
+    Function *getFunction() const { return getFunctionField(15); }
+    void replaceFunction(Function *F) { replaceFunctionField(15, F); }
+    DIArray getTemplateParams() const { return getFieldAs<DIArray>(16); }
     DISubprogram getFunctionDeclaration() const {
-      return getFieldAs<DISubprogram>(18);
+      return getFieldAs<DISubprogram>(17);
     }
     MDNode *getVariablesNodes() const;
     DIArray getVariables() const;
@@ -623,16 +590,14 @@ namespace llvm {
   class DILexicalBlock : public DIScope {
   public:
     explicit DILexicalBlock(const MDNode *N = 0) : DIScope(N) {}
-    DIScope getContext() const       { return getFieldAs<DIScope>(1);      }
-    unsigned getLineNumber() const   { return getUnsignedField(2);         }
-    unsigned getColumnNumber() const { return getUnsignedField(3);         }
+    DIScope getContext() const       { return getFieldAs<DIScope>(2);      }
+    unsigned getLineNumber() const   { return getUnsignedField(3);         }
+    unsigned getColumnNumber() const { return getUnsignedField(4);         }
     StringRef getDirectory() const {
-      StringRef dir = getFieldAs<DIFile>(4).getDirectory();
-      return !dir.empty() ? dir : getContext().getDirectory();
+      return getFieldAs<DIFile>(1).getDirectory();
     }
     StringRef getFilename() const {
-      StringRef filename = getFieldAs<DIFile>(4).getFilename();
-      return !filename.empty() ? filename : getContext().getFilename();
+      return getFieldAs<DIFile>(1).getFilename();
     }
     bool Verify() const;
   };
@@ -646,13 +611,10 @@ namespace llvm {
     unsigned getLineNumber() const { return getScope().getLineNumber(); }
     unsigned getColumnNumber() const { return getScope().getColumnNumber(); }
     StringRef getDirectory() const {
-      StringRef dir = getFieldAs<DIFile>(2).getDirectory();
-      return !dir.empty() ? dir : getContext().getDirectory();
+      return getFieldAs<DIFile>(2).getDirectory();
     }
     StringRef getFilename() const {
-      StringRef filename = getFieldAs<DIFile>(2).getFilename();
-      assert(!filename.empty() && "Why'd you create this then?");
-      return filename;
+      return getFieldAs<DIFile>(2).getFilename();
     }
     DILexicalBlock getScope() const { return getFieldAs<DILexicalBlock>(1); }
     bool Verify() const;
@@ -660,16 +622,12 @@ namespace llvm {
 
   /// DINameSpace - A wrapper for a C++ style name space.
   class DINameSpace : public DIScope {
+    friend class DIDescriptor;
+    void printInternal(raw_ostream &OS) const;
   public:
     explicit DINameSpace(const MDNode *N = 0) : DIScope(N) {}
-    DIScope getContext() const     { return getFieldAs<DIScope>(1);      }
-    StringRef getName() const      { return getStringField(2);           }
-    StringRef getDirectory() const  {
-      return getFieldAs<DIFile>(3).getDirectory();
-    }
-    StringRef getFilename() const  {
-      return getFieldAs<DIFile>(3).getFilename();
-    }
+    DIScope getContext() const     { return getFieldAs<DIScope>(2);      }
+    StringRef getName() const      { return getStringField(3);           }
     unsigned getLineNumber() const { return getUnsignedField(4);         }
     bool Verify() const;
   };
diff --git a/include/llvm/ExecutionEngine/GenericValue.h b/include/llvm/ExecutionEngine/GenericValue.h
index e160e3aafd..21b99421b3 100644
--- a/include/llvm/ExecutionEngine/GenericValue.h
+++ b/include/llvm/ExecutionEngine/GenericValue.h
@@ -24,11 +24,15 @@ typedef void* PointerTy;
 class APInt;
 
 struct GenericValue {
+  struct IntPair {
+    unsigned int first;
+    unsigned int second;
+  };
   union {
     double          DoubleVal;
     float           FloatVal;
     PointerTy       PointerVal;
-    struct { unsigned int first; unsigned int second; } UIntPairVal;
+    struct IntPair  UIntPairVal;
     unsigned char   Untyped[8];
   };
   APInt IntVal;   // also used for long doubles
diff --git a/include/llvm/IR/Attributes.h b/include/llvm/IR/Attributes.h
index 30c0965337..074b38779a 100644
--- a/include/llvm/IR/Attributes.h
+++ b/include/llvm/IR/Attributes.h
@@ -226,11 +226,6 @@ private:
   explicit AttributeSet(AttributeSetImpl *LI) : pImpl(LI) {}
 public:
   AttributeSet() : pImpl(0) {}
-  AttributeSet(const AttributeSet &P) : pImpl(P.pImpl) {}
-  const AttributeSet &operator=(const AttributeSet &RHS) {
-    pImpl = RHS.pImpl;
-    return *this;
-  }
 
   //===--------------------------------------------------------------------===//
   // AttributeSet Construction and Mutation
@@ -247,6 +242,11 @@ public:
   AttributeSet addAttribute(LLVMContext &C, unsigned Idx,
                             Attribute::AttrKind Attr) const;
 
+  /// \brief Add an attribute to the attribute set at the given index. Since
+  /// attribute sets are immutable, this returns a new set.
+  AttributeSet addAttribute(LLVMContext &C, unsigned Idx,
+                            StringRef Kind) const;
+
   /// \brief Add attributes to the attribute set at the given index. Since
   /// attribute sets are immutable, this returns a new set.
   AttributeSet addAttributes(LLVMContext &C, unsigned Idx,
diff --git a/include/llvm/IR/DataLayout.h b/include/llvm/IR/DataLayout.h
index 5eb186d531..72b4eedabd 100644
--- a/include/llvm/IR/DataLayout.h
+++ b/include/llvm/IR/DataLayout.h
@@ -22,6 +22,8 @@
 
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/SmallVector.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Type.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/DataTypes.h"
 
@@ -181,6 +183,10 @@ public:
 
   ~DataLayout();  // Not virtual, do not subclass this class
 
+  /// DataLayout is an immutable pass, but holds state.  This allows the pass
+  /// manager to clear its mutable state.
+  bool doFinalization(Module &M);
+
   /// Parse a data layout string (with fallback to default values). Ensure that
   /// the data layout pass is registered.
   void init(StringRef LayoutDescription);
@@ -419,6 +425,49 @@ private:
   StructLayout(StructType *ST, const DataLayout &TD);
 };
 
+
+// The implementation of this method is provided inline as it is particularly
+// well suited to constant folding when called on a specific Type subclass.
+inline uint64_t DataLayout::getTypeSizeInBits(Type *Ty) const {
+  assert(Ty->isSized() && "Cannot getTypeInfo() on a type that is unsized!");
+  switch (Ty->getTypeID()) {
+  case Type::LabelTyID:
+    return getPointerSizeInBits(0);
+  case Type::PointerTyID:
+    return getPointerSizeInBits(cast<PointerType>(Ty)->getAddressSpace());
+  case Type::ArrayTyID: {
+    ArrayType *ATy = cast<ArrayType>(Ty);
+    return ATy->getNumElements() *
+           getTypeAllocSizeInBits(ATy->getElementType());
+  }
+  case Type::StructTyID:
+    // Get the layout annotation... which is lazily created on demand.
+    return getStructLayout(cast<StructType>(Ty))->getSizeInBits();
+  case Type::IntegerTyID:
+    return cast<IntegerType>(Ty)->getBitWidth();
+  case Type::HalfTyID:
+    return 16;
+  case Type::FloatTyID:
+    return 32;
+  case Type::DoubleTyID:
+  case Type::X86_MMXTyID:
+    return 64;
+  case Type::PPC_FP128TyID:
+  case Type::FP128TyID:
+    return 128;
+    // In memory objects this is always aligned to a higher boundary, but
+  // only 80 bits contain information.
+  case Type::X86_FP80TyID:
+    return 80;
+  case Type::VectorTyID: {
+    VectorType *VTy = cast<VectorType>(Ty);
+    return VTy->getNumElements() * getTypeSizeInBits(VTy->getElementType());
+  }
+  default:
+    llvm_unreachable("DataLayout::getTypeSizeInBits(): Unsupported type");
+  }
+}
+
 } // End llvm namespace
 
 #endif
diff --git a/include/llvm/IR/Function.h b/include/llvm/IR/Function.h
index a7dea5ca3d..f97929f658 100644
--- a/include/llvm/IR/Function.h
+++ b/include/llvm/IR/Function.h
@@ -181,6 +181,14 @@ public:
                                              AttributeSet::FunctionIndex, N));
   }
 
+  /// addFnAttr - Add function attributes to this function.
+  ///
+  void addFnAttr(StringRef Kind) {
+    setAttributes(
+      AttributeSets.addAttribute(getContext(),
+                                 AttributeSet::FunctionIndex, Kind));
+  }
+
   /// \brief Return true if the function has the attribute.
   bool hasFnAttribute(Attribute::AttrKind Kind) const {
     return AttributeSets.hasAttribute(AttributeSet::FunctionIndex, Kind);
diff --git a/include/llvm/IR/Instructions.h b/include/llvm/IR/Instructions.h
index 7e29699f73..5dbca52e82 100644
--- a/include/llvm/IR/Instructions.h
+++ b/include/llvm/IR/Instructions.h
@@ -2230,6 +2230,9 @@ public:
   /// to determine what type of clause this is.
   Value *getClause(unsigned Idx) const { return OperandList[Idx + 1]; }
 
+  /// hasCatchAll - Return 'true' if this landing pad has a catch-all.
+  bool hasCatchAll() const;
+
   /// isCatch - Return 'true' if the clause and index Idx is a catch clause.
   bool isCatch(unsigned Idx) const {
     return !isa<ArrayType>(OperandList[Idx + 1]->getType());
diff --git a/include/llvm/Linker.h b/include/llvm/Linker.h
index 8bf9efa8e2..679638427d 100644
--- a/include/llvm/Linker.h
+++ b/include/llvm/Linker.h
@@ -6,10 +6,6 @@
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
-//
-// This file defines the interface to the module/file/archive linker.
-//
-//===----------------------------------------------------------------------===//
 
 #ifndef LLVM_LINKER_H
 #define LLVM_LINKER_H
@@ -19,7 +15,6 @@
 #include <vector>
 
 namespace llvm {
-  namespace sys { class Path; }
 
 class Module;
 class LLVMContext;
@@ -31,8 +26,7 @@ class StringRef;
 /// In this case the Linker still retains ownership of the Module. If the
 /// releaseModule() method is used, the ownership of the Module is transferred
 /// to the caller and the Linker object is only suitable for destruction.
-/// The Linker can link Modules from memory.  It retains a set of search paths
-/// in which to find any libraries presented to it. By default, the linker
+/// The Linker can link Modules from memory. By default, the linker
 /// will generate error and warning messages to stderr but this capability can
 /// be turned off with the QuietWarnings and QuietErrors flags. It can also be
 /// instructed to verbosely print out the linking actions it is taking with
@@ -96,16 +90,10 @@ class Linker {
     /// must arrange for its destruct. After this method is called, the Linker
     /// terminates the linking session for the returned Module. It will no
     /// longer utilize the returned Module but instead resets itself for
-    /// subsequent linking as if the constructor had been called. The Linker's
-    /// LibPaths and flags to be reset, and memory will be released.
+    /// subsequent linking as if the constructor had been called.
     /// @brief Release the linked/composite module.
     Module* releaseModule();
 
-    /// This method gets the list of libraries that form the path that the
-    /// Linker will search when it is presented with a library name.
-    /// @brief Get the Linkers library path
-    const std::vector<sys::Path>& getLibPaths() const { return LibPaths; }
-
     /// This method returns an error string suitable for printing to the user.
     /// The return value will be empty unless an error occurred in one of the
     /// LinkIn* methods. In those cases, the LinkIn* methods will have returned
@@ -120,31 +108,6 @@ class Linker {
   /// @name Mutators
   /// @{
   public:
-    /// Add a path to the list of paths that the Linker will search. The Linker
-    /// accumulates the set of libraries added
-    /// library paths for the target platform. The standard libraries will
-    /// always be searched last. The added libraries will be searched in the
-    /// order added.
-    /// @brief Add a path.
-    void addPath(const sys::Path& path);
-
-    /// Add a set of paths to the list of paths that the linker will search. The
-    /// Linker accumulates the set of libraries added. The \p paths will be
-    /// added to the end of the Linker's list. Order will be retained.
-    /// @brief Add a set of paths.
-    void addPaths(const std::vector<std::string>& paths);
-
-    /// This method augments the Linker's list of library paths with the system
-    /// paths of the host operating system, include LLVM_LIB_SEARCH_PATH.
-    /// @brief Add the system paths.
-    void addSystemPaths();
-
-    /// Control optional linker behavior by setting a group of flags. The flags
-    /// are defined in the ControlFlags enumeration.
-    /// @see ControlFlags
-    /// @brief Set control flags.
-    void setFlags(unsigned flags) { Flags = flags; }
-
     /// This method links the \p Src module into the Linker's Composite module
     /// by calling LinkModules.
     /// @see LinkModules
@@ -185,7 +148,6 @@ class Linker {
   private:
     LLVMContext& Context; ///< The context for global information
     Module* Composite; ///< The composite module linked together
-    std::vector<sys::Path> LibPaths; ///< The library search paths
     unsigned Flags;    ///< Flags to control optional behavior.
     std::string Error; ///< Text of error that occurred.
     std::string ProgramName; ///< Name of the program being linked
diff --git a/include/llvm/MC/MCAtom.h b/include/llvm/MC/MCAtom.h
index 682cf7cd76..ae5bf0bc20 100644
--- a/include/llvm/MC/MCAtom.h
+++ b/include/llvm/MC/MCAtom.h
@@ -46,8 +46,8 @@ class MCAtom {
     : Type(T), Parent(P), Begin(B), End(E) { }
 
 public:
-  bool isTextAtom() { return Type == TextAtom; }
-  bool isDataAtom() { return Type == DataAtom; }
+  bool isTextAtom() const { return Type == TextAtom; }
+  bool isDataAtom() const { return Type == DataAtom; }
 
   void addInst(const MCInst &I, uint64_t Address, unsigned Size);
   void addData(const MCData &D);
diff --git a/include/llvm/MC/MCContext.h b/include/llvm/MC/MCContext.h
index 1251c5fbe2..0db3dee2ff 100644
--- a/include/llvm/MC/MCContext.h
+++ b/include/llvm/MC/MCContext.h
@@ -11,6 +11,7 @@
 #define LLVM_MC_MCCONTEXT_H
 
 #include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringMap.h"
 #include "llvm/MC/MCDwarf.h"
 #include "llvm/MC/SectionKind.h"
@@ -105,9 +106,9 @@ namespace llvm {
     /// We now emit a line table for each compile unit. To reduce the prologue
     /// size of each line table, the files and directories used by each compile
     /// unit are separated.
-    typedef std::map<unsigned, std::vector<MCDwarfFile *> > MCDwarfFilesMap;
+    typedef std::map<unsigned, SmallVector<MCDwarfFile *, 4> > MCDwarfFilesMap;
     MCDwarfFilesMap MCDwarfFilesCUMap;
-    std::map<unsigned, std::vector<StringRef> > MCDwarfDirsCUMap;
+    std::map<unsigned, SmallVector<StringRef, 4> > MCDwarfDirsCUMap;
 
     /// The current dwarf line information from the last dwarf .loc directive.
     MCDwarfLoc CurrentDwarfLoc;
@@ -301,10 +302,10 @@ namespace llvm {
       return false;
     }
 
-    const std::vector<MCDwarfFile *> &getMCDwarfFiles(unsigned CUID = 0) {
+    const SmallVectorImpl<MCDwarfFile *> &getMCDwarfFiles(unsigned CUID = 0) {
       return MCDwarfFilesCUMap[CUID];
     }
-    const std::vector<StringRef> &getMCDwarfDirs(unsigned CUID = 0) {
+    const SmallVectorImpl<StringRef> &getMCDwarfDirs(unsigned CUID = 0) {
       return MCDwarfDirsCUMap[CUID];
     }
 
diff --git a/include/llvm/MC/MCParser/MCParsedAsmOperand.h b/include/llvm/MC/MCParser/MCParsedAsmOperand.h
index c78cd976f2..4650bf21be 100644
--- a/include/llvm/MC/MCParser/MCParsedAsmOperand.h
+++ b/include/llvm/MC/MCParser/MCParsedAsmOperand.h
@@ -57,19 +57,12 @@ public:
 
   /// isMem - Is this a memory operand?
   virtual bool isMem() const = 0;
-  virtual unsigned getMemSize() const { return 0; }
 
   /// getStartLoc - Get the location of the first token of this operand.
   virtual SMLoc getStartLoc() const = 0;
   /// getEndLoc - Get the location of the last token of this operand.
   virtual SMLoc getEndLoc() const = 0;
 
-  /// needAsmRewrite - AsmRewrites happen in both the target-independent and
-  /// target-dependent parsers.  The target-independent parser calls this
-  /// function to determine if the target-dependent parser has already taken
-  /// care of the rewrites.  Only valid when parsing MS-style inline assembly.
-  virtual bool needAsmRewrite() const { return true; }
-
   /// needAddressOf - Do we need to emit code to get the address of the
   /// variable/label?   Only valid when parsing MS-style inline assembly.
   virtual bool needAddressOf() const { return false; }
@@ -82,10 +75,6 @@ public:
   /// getOffsetOfLoc - Get the location of the offset operator.
   virtual SMLoc getOffsetOfLoc() const { return SMLoc(); }
 
-  /// needSizeDirective - Do we need to emit a sizing directive for this
-  /// operand?  Only valid when parsing MS-style inline assembly.
-  virtual bool needSizeDirective() const { return false; }
-
   /// print - Print a debug representation of the operand to the given stream.
   virtual void print(raw_ostream &OS) const = 0;
   /// dump - Print to the debug stream.
diff --git a/include/llvm/Support/CallSite.h b/include/llvm/Support/CallSite.h
index 3ce0fef4a0..92107ac025 100644
--- a/include/llvm/Support/CallSite.h
+++ b/include/llvm/Support/CallSite.h
@@ -28,7 +28,6 @@
 
 #include "llvm/ADT/PointerIntPair.h"
 #include "llvm/IR/Attributes.h"
-#include "llvm/IR/BasicBlock.h"
 #include "llvm/IR/CallingConv.h"
 #include "llvm/IR/Instructions.h"
 
diff --git a/include/llvm/Support/Compiler.h b/include/llvm/Support/Compiler.h
index 25f42a98e7..13d057be04 100644
--- a/include/llvm/Support/Compiler.h
+++ b/include/llvm/Support/Compiler.h
@@ -351,4 +351,14 @@
 #define LLVM_EXPLICIT
 #endif
 
+/// \macro LLVM_STATIC_ASSERT
+/// \brief Expands to C/C++'s static_assert on compilers which support it.
+#if __has_feature(cxx_static_assert)
+# define LLVM_STATIC_ASSERT(expr, msg) static_assert(expr, msg)
+#elif __has_feature(c_static_assert)
+# define LLVM_STATIC_ASSERT(expr, msg) _Static_assert(expr, msg)
+#else
+# define LLVM_STATIC_ASSERT(expr, msg)
+#endif
+
 #endif
diff --git a/include/llvm/Support/DebugLoc.h b/include/llvm/Support/DebugLoc.h
index 3596be87e3..f35d407292 100644
--- a/include/llvm/Support/DebugLoc.h
+++ b/include/llvm/Support/DebugLoc.h
@@ -9,7 +9,7 @@
 //
 // This file defines a number of light weight data structures used
 // to describe and track debug location information.
-// 
+//
 //===----------------------------------------------------------------------===//
 
 #ifndef LLVM_SUPPORT_DEBUGLOC_H
@@ -19,7 +19,7 @@ namespace llvm {
   template <typename T> struct DenseMapInfo;
   class MDNode;
   class LLVMContext;
-  
+
   /// DebugLoc - Debug location id.  This is carried by Instruction, SDNode,
   /// and MachineInstr to compactly encode file/line/scope information for an
   /// operation.
@@ -46,18 +46,18 @@ namespace llvm {
     /// location, encoded as 24-bits for line and 8 bits for col.  A value of 0
     /// for either means unknown.
     unsigned LineCol;
-    
+
     /// ScopeIdx - This is an opaque ID# for Scope/InlinedAt information,
     /// decoded by LLVMContext.  0 is unknown.
     int ScopeIdx;
   public:
     DebugLoc() : LineCol(0), ScopeIdx(0) {}  // Defaults to unknown.
-    
+
     /// get - Get a new DebugLoc that corresponds to the specified line/col
     /// scope/inline location.
     static DebugLoc get(unsigned Line, unsigned Col,
                         MDNode *Scope, MDNode *InlinedAt = 0);
-    
+
     /// getFromDILocation - Translate the DILocation quad into a DebugLoc.
     static DebugLoc getFromDILocation(MDNode *N);
 
@@ -66,32 +66,32 @@ namespace llvm {
 
     /// isUnknown - Return true if this is an unknown location.
     bool isUnknown() const { return ScopeIdx == 0; }
-    
+
     unsigned getLine() const {
       return (LineCol << 8) >> 8;  // Mask out column.
     }
-    
+
     unsigned getCol() const {
       return LineCol >> 24;
     }
-    
+
     /// getScope - This returns the scope pointer for this DebugLoc, or null if
     /// invalid.
     MDNode *getScope(const LLVMContext &Ctx) const;
-    
+
     /// getInlinedAt - This returns the InlinedAt pointer for this DebugLoc, or
     /// null if invalid or not present.
     MDNode *getInlinedAt(const LLVMContext &Ctx) const;
-    
+
     /// getScopeAndInlinedAt - Return both the Scope and the InlinedAt values.
     void getScopeAndInlinedAt(MDNode *&Scope, MDNode *&IA,
                               const LLVMContext &Ctx) const;
-    
-    
+
+
     /// getAsMDNode - This method converts the compressed DebugLoc node into a
     /// DILocation compatible MDNode.
     MDNode *getAsMDNode(const LLVMContext &Ctx) const;
-    
+
     bool operator==(const DebugLoc &DL) const {
       return LineCol == DL.LineCol && ScopeIdx == DL.ScopeIdx;
     }
diff --git a/include/llvm/Support/ELF.h b/include/llvm/Support/ELF.h
index 8e6b91e00e..cc9151ef50 100644
--- a/include/llvm/Support/ELF.h
+++ b/include/llvm/Support/ELF.h
@@ -588,6 +588,8 @@ enum {
 
 // ARM Specific e_flags
 enum {
+  EF_ARM_SOFT_FLOAT =     0x00000200U,
+  EF_ARM_VFP_FLOAT =      0x00000400U,
   EF_ARM_EABI_UNKNOWN =   0x00000000U,
   EF_ARM_EABI_VER1 =      0x01000000U,
   EF_ARM_EABI_VER2 =      0x02000000U,
diff --git a/include/llvm/Support/FileSystem.h b/include/llvm/Support/FileSystem.h
index bae3a5a608..ffa642787b 100644
--- a/include/llvm/Support/FileSystem.h
+++ b/include/llvm/Support/FileSystem.h
@@ -602,7 +602,7 @@ private:
   void *FileMappingHandle;
 #endif
 
-  error_code init(int FD, uint64_t Offset);
+  error_code init(int FD, bool CloseFD, uint64_t Offset);
 
 public:
   typedef char char_type;
@@ -633,8 +633,10 @@ public:
                      error_code &ec);
 
   /// \param fd An open file descriptor to map. mapped_file_region takes
-  ///           ownership. It must have been opended in the correct mode.
+  ///   ownership if closefd is true. It must have been opended in the correct
+  ///   mode.
   mapped_file_region(int fd,
+                     bool closefd,
                      mapmode mode,
                      uint64_t length,
                      uint64_t offset,
diff --git a/include/llvm/TableGen/Error.h b/include/llvm/TableGen/Error.h
index 2f6b7e625c..2d0a2b45a9 100644
--- a/include/llvm/TableGen/Error.h
+++ b/include/llvm/TableGen/Error.h
@@ -32,6 +32,7 @@ LLVM_ATTRIBUTE_NORETURN void PrintFatalError(ArrayRef<SMLoc> ErrorLoc,
                                              const std::string &Msg);
 
 extern SourceMgr SrcMgr;
+extern unsigned ErrorsPrinted;
 
 
 } // end namespace "llvm"
diff --git a/include/llvm/TableGen/Record.h b/include/llvm/TableGen/Record.h
index 3cf4f1f054..76ee69dd8d 100644
--- a/include/llvm/TableGen/Record.h
+++ b/include/llvm/TableGen/Record.h
@@ -1559,6 +1559,11 @@ public:
   ///
   Init *getValueInit(StringRef FieldName) const;
 
+  /// Return true if the named field is unset.
+  bool isValueUnset(StringRef FieldName) const {
+    return getValueInit(FieldName) == UnsetInit::get();
+  }
+
   /// getValueAsString - This method looks up the specified field and returns
   /// its value as a string, throwing an exception if the field does not exist
   /// or if the value is not a string.
diff --git a/include/llvm/Target/Target.td b/include/llvm/Target/Target.td
index 876479bf8a..deee2eb6de 100644
--- a/include/llvm/Target/Target.td
+++ b/include/llvm/Target/Target.td
@@ -397,6 +397,9 @@ class Instruction {
 
   InstrItinClass Itinerary = NoItinerary;// Execution steps used for scheduling.
 
+  // Scheduling information from TargetSchedule.td.
+  list<SchedReadWrite> SchedRW;
+
   string Constraints = "";  // OperandConstraint, e.g. $src = $dst.
 
   /// DisableEncoding - List of operand names (e.g. "$op1,$op2") that should not
diff --git a/include/llvm/Target/TargetFrameLowering.h b/include/llvm/Target/TargetFrameLowering.h
index 58bfcec07a..d5f30f40ad 100644
--- a/include/llvm/Target/TargetFrameLowering.h
+++ b/include/llvm/Target/TargetFrameLowering.h
@@ -194,7 +194,8 @@ public:
   /// finalized.  Once the frame is finalized, MO_FrameIndex operands are
   /// replaced with direct constants.  This method is optional.
   ///
-  virtual void processFunctionBeforeFrameFinalized(MachineFunction &MF) const {
+  virtual void processFunctionBeforeFrameFinalized(MachineFunction &MF,
+                                               RegScavenger *RS = NULL) const {
   }
 
   /// eliminateCallFramePseudoInstr - This method is called during prolog/epilog
diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h
index e3e5737300..5d74848b71 100644
--- a/include/llvm/Target/TargetLowering.h
+++ b/include/llvm/Target/TargetLowering.h
@@ -958,6 +958,13 @@ protected:
     RegClassForVT[VT.SimpleTy] = RC;
   }
 
+  /// clearRegisterClasses - remove all register classes
+  void clearRegisterClasses() {
+    for (unsigned i = 0 ; i<array_lengthof(RegClassForVT); i++)
+      RegClassForVT[i] = 0;
+    AvailableRegClasses.clear();
+  }
+
   /// findRepresentativeClass - Return the largest legal super-reg register class
   /// of the register class for the specified type and its associated "cost".
   virtual std::pair<const TargetRegisterClass*, uint8_t>
diff --git a/include/llvm/Target/TargetMachine.h b/include/llvm/Target/TargetMachine.h
index 35cf20a702..66f3a3c71b 100644
--- a/include/llvm/Target/TargetMachine.h
+++ b/include/llvm/Target/TargetMachine.h
@@ -95,7 +95,10 @@ public:
   /// a reference to that target's TargetSubtargetInfo-derived member variable.
   virtual const TargetSubtargetInfo *getSubtargetImpl() const { return 0; }
 
-  TargetOptions Options;
+  mutable TargetOptions Options;
+
+  /// \brief Reset the target options based on the function's attributes.
+  void resetTargetOptions(const MachineFunction *MF) const;
 
   // Interfaces to the major aspects of target machine information:
   // -- Instruction opcode and operand information
diff --git a/include/llvm/Target/TargetSchedule.td b/include/llvm/Target/TargetSchedule.td
index b7920bae8a..660d2c48b6 100644
--- a/include/llvm/Target/TargetSchedule.td
+++ b/include/llvm/Target/TargetSchedule.td
@@ -133,6 +133,11 @@ def EponymousProcResourceKind : ProcResourceKind;
 class ProcResource<int num> : ProcResourceKind,
   ProcResourceUnits<EponymousProcResourceKind, num>;
 
+class ProcResGroup<list<ProcResource> resources> : ProcResourceKind {
+  list<ProcResource> Resources = resources;
+  SchedMachineModel SchedModel = ?;
+}
+
 // A target architecture may define SchedReadWrite types and associate
 // them with instruction operands.
 class SchedReadWrite;
diff --git a/include/llvm/Transforms/Instrumentation.h b/include/llvm/Transforms/Instrumentation.h
index f96b5b3f77..4aae200dd0 100644
--- a/include/llvm/Transforms/Instrumentation.h
+++ b/include/llvm/Transforms/Instrumentation.h
@@ -31,20 +31,40 @@ ModulePass *createOptimalEdgeProfilerPass();
 ModulePass *createPathProfilerPass();
 
 // Insert GCOV profiling instrumentation
-static const char DefaultGCovVersion[4] = {'*', '2', '0', '4'};
-ModulePass *createGCOVProfilerPass(bool EmitNotes = true, bool EmitData = true,
-                                   const char (&Version)[4] =DefaultGCovVersion,
-                                   bool UseExtraChecksum = false,
-                                   bool NoRedZone = false,
-                                   bool NoFunctionNamesInData = false);
+struct GCOVOptions {
+  static GCOVOptions getDefault();
+
+  // Specify whether to emit .gcno files.
+  bool EmitNotes;
+
+  // Specify whether to modify the program to emit .gcda files when run.
+  bool EmitData;
+
+  // A four-byte version string. The meaning of a version string is described in
+  // gcc's gcov-io.h
+  char Version[4];
+
+  // Emit a "cfg checksum" that follows the "line number checksum" of a
+  // function. This affects both .gcno and .gcda files.
+  bool UseCfgChecksum;
+
+  // Add the 'noredzone' attribute to added runtime library calls.
+  bool NoRedZone;
+
+  // Emit the name of the function in the .gcda files. This is redundant, as
+  // the function identifier can be used to find the name from the .gcno file.
+  bool FunctionNamesInData;
+};
+ModulePass *createGCOVProfilerPass(const GCOVOptions &Options =
+                                   GCOVOptions::getDefault());
 
 // Insert AddressSanitizer (address sanity checking) instrumentation
 FunctionPass *createAddressSanitizerFunctionPass(
-    bool CheckInitOrder = false, bool CheckUseAfterReturn = false,
+    bool CheckInitOrder = true, bool CheckUseAfterReturn = false,
     bool CheckLifetime = false, StringRef BlacklistFile = StringRef(),
     bool ZeroBaseShadow = false);
 ModulePass *createAddressSanitizerModulePass(
-    bool CheckInitOrder = false, StringRef BlacklistFile = StringRef(),
+    bool CheckInitOrder = true, StringRef BlacklistFile = StringRef(),
     bool ZeroBaseShadow = false);
 
 // Insert MemorySanitizer instrumentation (detection of uninitialized reads)
@@ -54,7 +74,6 @@ FunctionPass *createMemorySanitizerPass(bool TrackOrigins = false,
 // Insert ThreadSanitizer (race detection) instrumentation
 FunctionPass *createThreadSanitizerPass(StringRef BlacklistFile = StringRef());
 
-
 // BoundsChecking - This pass instruments the code to perform run-time bounds
 // checking on loads, stores, and other memory intrinsics.
 FunctionPass *createBoundsCheckingPass();
diff --git a/include/llvm/Transforms/Scalar.h b/include/llvm/Transforms/Scalar.h
index e89759a097..e833aaa6d6 100644
--- a/include/llvm/Transforms/Scalar.h
+++ b/include/llvm/Transforms/Scalar.h
@@ -342,7 +342,7 @@ extern char &InstructionSimplifierID;
 
 //===----------------------------------------------------------------------===//
 //
-// LowerExpectIntriniscs - Removes llvm.expect intrinsics and creates
+// LowerExpectIntrinsics - Removes llvm.expect intrinsics and creates
 // "block_weights" metadata.
 FunctionPass *createLowerExpectIntrinsicPass();