Move all of the header files which are involved in modelling the LLVM IR

into their new header subdirectory: include/llvm/IR. This matches the
directory structure of lib, and begins to correct a long standing point
of file layout clutter in LLVM.

There are still more header files to move here, but I wanted to handle
them in separate commits to make tracking what files make sense at each
layer easier.

The only really questionable files here are the target intrinsic
tablegen files. But that's a battle I'd rather not fight today.

I've updated both CMake and Makefile build systems (I think, and my
tests think, but I may have missed something).

I've also re-sorted the includes throughout the project. I'll be
committing updates to Clang, DragonEgg, and Polly momentarily.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1163 insertions, 0 deletions

diff --git a/include/llvm/IR/Constants.h b/include/llvm/IR/Constants.h
new file mode 100644
index 0000000000..0f49fe5e69
--- /dev/null
+++ b/include/llvm/IR/Constants.h
@@ -0,0 +1,1163 @@
+//===-- llvm/Constants.h - Constant class subclass definitions --*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+/// @file
+/// This file contains the declarations for the subclasses of Constant,
+/// which represent the different flavors of constant values that live in LLVM.
+/// Note that Constants are immutable (once created they never change) and are
+/// fully shared by structural equivalence.  This means that two structurally
+/// equivalent constants will always have the same address.  Constant's are
+/// created on demand as needed and never deleted: thus clients don't have to
+/// worry about the lifetime of the objects.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CONSTANTS_H
+#define LLVM_CONSTANTS_H
+
+#include "llvm/ADT/APFloat.h"
+#include "llvm/ADT/APInt.h"
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/IR/Constant.h"
+#include "llvm/IR/OperandTraits.h"
+
+namespace llvm {
+
+class ArrayType;
+class IntegerType;
+class StructType;
+class PointerType;
+class VectorType;
+class SequentialType;
+
+template<class ConstantClass, class TypeClass, class ValType>
+struct ConstantCreator;
+template<class ConstantClass, class TypeClass>
+struct ConstantArrayCreator;
+template<class ConstantClass, class TypeClass>
+struct ConvertConstantType;
+
+//===----------------------------------------------------------------------===//
+/// This is the shared class of boolean and integer constants. This class
+/// represents both boolean and integral constants.
+/// @brief Class for constant integers.
+class ConstantInt : public Constant {
+  virtual void anchor();
+  void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
+  ConstantInt(const ConstantInt &) LLVM_DELETED_FUNCTION;
+  ConstantInt(IntegerType *Ty, const APInt& V);
+  APInt Val;
+protected:
+  // allocate space for exactly zero operands
+  void *operator new(size_t s) {
+    return User::operator new(s, 0);
+  }
+public:
+  static ConstantInt *getTrue(LLVMContext &Context);
+  static ConstantInt *getFalse(LLVMContext &Context);
+  static Constant *getTrue(Type *Ty);
+  static Constant *getFalse(Type *Ty);
+
+  /// If Ty is a vector type, return a Constant with a splat of the given
+  /// value. Otherwise return a ConstantInt for the given value.
+  static Constant *get(Type *Ty, uint64_t V, bool isSigned = false);
+
+  /// Return a ConstantInt with the specified integer value for the specified
+  /// type. If the type is wider than 64 bits, the value will be zero-extended
+  /// to fit the type, unless isSigned is true, in which case the value will
+  /// be interpreted as a 64-bit signed integer and sign-extended to fit
+  /// the type.
+  /// @brief Get a ConstantInt for a specific value.
+  static ConstantInt *get(IntegerType *Ty, uint64_t V,
+                          bool isSigned = false);
+
+  /// Return a ConstantInt with the specified value for the specified type. The
+  /// value V will be canonicalized to a an unsigned APInt. Accessing it with
+  /// either getSExtValue() or getZExtValue() will yield a correctly sized and
+  /// signed value for the type Ty.
+  /// @brief Get a ConstantInt for a specific signed value.
+  static ConstantInt *getSigned(IntegerType *Ty, int64_t V);
+  static Constant *getSigned(Type *Ty, int64_t V);
+
+  /// Return a ConstantInt with the specified value and an implied Type. The
+  /// type is the integer type that corresponds to the bit width of the value.
+  static ConstantInt *get(LLVMContext &Context, const APInt &V);
+
+  /// Return a ConstantInt constructed from the string strStart with the given
+  /// radix.
+  static ConstantInt *get(IntegerType *Ty, StringRef Str,
+                          uint8_t radix);
+
+  /// If Ty is a vector type, return a Constant with a splat of the given
+  /// value. Otherwise return a ConstantInt for the given value.
+  static Constant *get(Type* Ty, const APInt& V);
+
+  /// Return the constant as an APInt value reference. This allows clients to
+  /// obtain a copy of the value, with all its precision in tact.
+  /// @brief Return the constant's value.
+  inline const APInt &getValue() const {
+    return Val;
+  }
+
+  /// getBitWidth - Return the bitwidth of this constant.
+  unsigned getBitWidth() const { return Val.getBitWidth(); }
+
+  /// Return the constant as a 64-bit unsigned integer value after it
+  /// has been zero extended as appropriate for the type of this constant. Note
+  /// that this method can assert if the value does not fit in 64 bits.
+  /// @deprecated
+  /// @brief Return the zero extended value.
+  inline uint64_t getZExtValue() const {
+    return Val.getZExtValue();
+  }
+
+  /// Return the constant as a 64-bit integer value after it has been sign
+  /// extended as appropriate for the type of this constant. Note that
+  /// this method can assert if the value does not fit in 64 bits.
+  /// @deprecated
+  /// @brief Return the sign extended value.
+  inline int64_t getSExtValue() const {
+    return Val.getSExtValue();
+  }
+
+  /// A helper method that can be used to determine if the constant contained
+  /// within is equal to a constant.  This only works for very small values,
+  /// because this is all that can be represented with all types.
+  /// @brief Determine if this constant's value is same as an unsigned char.
+  bool equalsInt(uint64_t V) const {
+    return Val == V;
+  }
+
+  /// getType - Specialize the getType() method to always return an IntegerType,
+  /// which reduces the amount of casting needed in parts of the compiler.
+  ///
+  inline IntegerType *getType() const {
+    return reinterpret_cast<IntegerType*>(Value::getType());
+  }
+
+  /// This static method returns true if the type Ty is big enough to
+  /// represent the value V. This can be used to avoid having the get method
+  /// assert when V is larger than Ty can represent. Note that there are two
+  /// versions of this method, one for unsigned and one for signed integers.
+  /// Although ConstantInt canonicalizes everything to an unsigned integer,
+  /// the signed version avoids callers having to convert a signed quantity
+  /// to the appropriate unsigned type before calling the method.
+  /// @returns true if V is a valid value for type Ty
+  /// @brief Determine if the value is in range for the given type.
+  static bool isValueValidForType(Type *Ty, uint64_t V);
+  static bool isValueValidForType(Type *Ty, int64_t V);
+
+  bool isNegative() const { return Val.isNegative(); }
+
+  /// This is just a convenience method to make client code smaller for a
+  /// common code. It also correctly performs the comparison without the
+  /// potential for an assertion from getZExtValue().
+  bool isZero() const {
+    return Val == 0;
+  }
+
+  /// This is just a convenience method to make client code smaller for a
+  /// common case. It also correctly performs the comparison without the
+  /// potential for an assertion from getZExtValue().
+  /// @brief Determine if the value is one.
+  bool isOne() const {
+    return Val == 1;
+  }
+
+  /// This function will return true iff every bit in this constant is set
+  /// to true.
+  /// @returns true iff this constant's bits are all set to true.
+  /// @brief Determine if the value is all ones.
+  bool isMinusOne() const {
+    return Val.isAllOnesValue();
+  }
+
+  /// This function will return true iff this constant represents the largest
+  /// value that may be represented by the constant's type.
+  /// @returns true iff this is the largest value that may be represented
+  /// by this type.
+  /// @brief Determine if the value is maximal.
+  bool isMaxValue(bool isSigned) const {
+    if (isSigned)
+      return Val.isMaxSignedValue();
+    else
+      return Val.isMaxValue();
+  }
+
+  /// This function will return true iff this constant represents the smallest
+  /// value that may be represented by this constant's type.
+  /// @returns true if this is the smallest value that may be represented by
+  /// this type.
+  /// @brief Determine if the value is minimal.
+  bool isMinValue(bool isSigned) const {
+    if (isSigned)
+      return Val.isMinSignedValue();
+    else
+      return Val.isMinValue();
+  }
+
+  /// This function will return true iff this constant represents a value with
+  /// active bits bigger than 64 bits or a value greater than the given uint64_t
+  /// value.
+  /// @returns true iff this constant is greater or equal to the given number.
+  /// @brief Determine if the value is greater or equal to the given number.
+  bool uge(uint64_t Num) const {
+    return Val.getActiveBits() > 64 || Val.getZExtValue() >= Num;
+  }
+
+  /// getLimitedValue - If the value is smaller than the specified limit,
+  /// return it, otherwise return the limit value.  This causes the value
+  /// to saturate to the limit.
+  /// @returns the min of the value of the constant and the specified value
+  /// @brief Get the constant's value with a saturation limit
+  uint64_t getLimitedValue(uint64_t Limit = ~0ULL) const {
+    return Val.getLimitedValue(Limit);
+  }
+
+  /// @brief Methods to support type inquiry through isa, cast, and dyn_cast.
+  static bool classof(const Value *V) {
+    return V->getValueID() == ConstantIntVal;
+  }
+};
+
+
+//===----------------------------------------------------------------------===//
+/// ConstantFP - Floating Point Values [float, double]
+///
+class ConstantFP : public Constant {
+  APFloat Val;
+  virtual void anchor();
+  void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
+  ConstantFP(const ConstantFP &) LLVM_DELETED_FUNCTION;
+  friend class LLVMContextImpl;
+protected:
+  ConstantFP(Type *Ty, const APFloat& V);
+protected:
+  // allocate space for exactly zero operands
+  void *operator new(size_t s) {
+    return User::operator new(s, 0);
+  }
+public:
+  /// Floating point negation must be implemented with f(x) = -0.0 - x. This
+  /// method returns the negative zero constant for floating point or vector
+  /// floating point types; for all other types, it returns the null value.
+  static Constant *getZeroValueForNegation(Type *Ty);
+
+  /// get() - This returns a ConstantFP, or a vector containing a splat of a
+  /// ConstantFP, for the specified value in the specified type.  This should
+  /// only be used for simple constant values like 2.0/1.0 etc, that are
+  /// known-valid both as host double and as the target format.
+  static Constant *get(Type* Ty, double V);
+  static Constant *get(Type* Ty, StringRef Str);
+  static ConstantFP *get(LLVMContext &Context, const APFloat &V);
+  static ConstantFP *getNegativeZero(Type* Ty);
+  static ConstantFP *getInfinity(Type *Ty, bool Negative = false);
+
+  /// isValueValidForType - return true if Ty is big enough to represent V.
+  static bool isValueValidForType(Type *Ty, const APFloat &V);
+  inline const APFloat &getValueAPF() const { return Val; }
+
+  /// isZero - Return true if the value is positive or negative zero.
+  bool isZero() const { return Val.isZero(); }
+
+  /// isNegative - Return true if the sign bit is set.
+  bool isNegative() const { return Val.isNegative(); }
+
+  /// isNaN - Return true if the value is a NaN.
+  bool isNaN() const { return Val.isNaN(); }
+
+  /// isExactlyValue - We don't rely on operator== working on double values, as
+  /// it returns true for things that are clearly not equal, like -0.0 and 0.0.
+  /// As such, this method can be used to do an exact bit-for-bit comparison of
+  /// two floating point values.  The version with a double operand is retained
+  /// because it's so convenient to write isExactlyValue(2.0), but please use
+  /// it only for simple constants.
+  bool isExactlyValue(const APFloat &V) const;
+
+  bool isExactlyValue(double V) const {
+    bool ignored;
+    APFloat FV(V);
+    FV.convert(Val.getSemantics(), APFloat::rmNearestTiesToEven, &ignored);
+    return isExactlyValue(FV);
+  }
+  /// Methods for support type inquiry through isa, cast, and dyn_cast:
+  static bool classof(const Value *V) {
+    return V->getValueID() == ConstantFPVal;
+  }
+};
+
+//===----------------------------------------------------------------------===//
+/// ConstantAggregateZero - All zero aggregate value
+///
+class ConstantAggregateZero : public Constant {
+  void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
+  ConstantAggregateZero(const ConstantAggregateZero &) LLVM_DELETED_FUNCTION;
+protected:
+  explicit ConstantAggregateZero(Type *ty)
+    : Constant(ty, ConstantAggregateZeroVal, 0, 0) {}
+protected:
+  // allocate space for exactly zero operands
+  void *operator new(size_t s) {
+    return User::operator new(s, 0);
+  }
+public:
+  static ConstantAggregateZero *get(Type *Ty);
+
+  virtual void destroyConstant();
+
+  /// getSequentialElement - If this CAZ has array or vector type, return a zero
+  /// with the right element type.
+  Constant *getSequentialElement() const;
+
+  /// getStructElement - If this CAZ has struct type, return a zero with the
+  /// right element type for the specified element.
+  Constant *getStructElement(unsigned Elt) const;
+
+  /// getElementValue - Return a zero of the right value for the specified GEP
+  /// index.
+  Constant *getElementValue(Constant *C) const;
+
+  /// getElementValue - Return a zero of the right value for the specified GEP
+  /// index.
+  Constant *getElementValue(unsigned Idx) const;
+
+  /// Methods for support type inquiry through isa, cast, and dyn_cast:
+  ///
+  static bool classof(const Value *V) {
+    return V->getValueID() == ConstantAggregateZeroVal;
+  }
+};
+
+
+//===----------------------------------------------------------------------===//
+/// ConstantArray - Constant Array Declarations
+///
+class ConstantArray : public Constant {
+  friend struct ConstantArrayCreator<ConstantArray, ArrayType>;
+  ConstantArray(const ConstantArray &) LLVM_DELETED_FUNCTION;
+protected:
+  ConstantArray(ArrayType *T, ArrayRef<Constant *> Val);
+public:
+  // ConstantArray accessors
+  static Constant *get(ArrayType *T, ArrayRef<Constant*> V);
+
+  /// Transparently provide more efficient getOperand methods.
+  DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
+
+  /// getType - Specialize the getType() method to always return an ArrayType,
+  /// which reduces the amount of casting needed in parts of the compiler.
+  ///
+  inline ArrayType *getType() const {
+    return reinterpret_cast<ArrayType*>(Value::getType());
+  }
+
+  virtual void destroyConstant();
+  virtual void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U);
+
+  /// Methods for support type inquiry through isa, cast, and dyn_cast:
+  static bool classof(const Value *V) {
+    return V->getValueID() == ConstantArrayVal;
+  }
+};
+
+template <>
+struct OperandTraits<ConstantArray> :
+  public VariadicOperandTraits<ConstantArray> {
+};
+
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ConstantArray, Constant)
+
+//===----------------------------------------------------------------------===//
+// ConstantStruct - Constant Struct Declarations
+//
+class ConstantStruct : public Constant {
+  friend struct ConstantArrayCreator<ConstantStruct, StructType>;
+  ConstantStruct(const ConstantStruct &) LLVM_DELETED_FUNCTION;
+protected:
+  ConstantStruct(StructType *T, ArrayRef<Constant *> Val);
+public:
+  // ConstantStruct accessors
+  static Constant *get(StructType *T, ArrayRef<Constant*> V);
+  static Constant *get(StructType *T, ...) END_WITH_NULL;
+
+  /// getAnon - Return an anonymous struct that has the specified
+  /// elements.  If the struct is possibly empty, then you must specify a
+  /// context.
+  static Constant *getAnon(ArrayRef<Constant*> V, bool Packed = false) {
+    return get(getTypeForElements(V, Packed), V);
+  }
+  static Constant *getAnon(LLVMContext &Ctx,
+                           ArrayRef<Constant*> V, bool Packed = false) {
+    return get(getTypeForElements(Ctx, V, Packed), V);
+  }
+
+  /// getTypeForElements - Return an anonymous struct type to use for a constant
+  /// with the specified set of elements.  The list must not be empty.
+  static StructType *getTypeForElements(ArrayRef<Constant*> V,
+                                        bool Packed = false);
+  /// getTypeForElements - This version of the method allows an empty list.
+  static StructType *getTypeForElements(LLVMContext &Ctx,
+                                        ArrayRef<Constant*> V,
+                                        bool Packed = false);
+
+  /// Transparently provide more efficient getOperand methods.
+  DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
+
+  /// getType() specialization - Reduce amount of casting...
+  ///
+  inline StructType *getType() const {
+    return reinterpret_cast<StructType*>(Value::getType());
+  }
+
+  virtual void destroyConstant();
+  virtual void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U);
+
+  /// Methods for support type inquiry through isa, cast, and dyn_cast:
+  static bool classof(const Value *V) {
+    return V->getValueID() == ConstantStructVal;
+  }
+};
+
+template <>
+struct OperandTraits<ConstantStruct> :
+  public VariadicOperandTraits<ConstantStruct> {
+};
+
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ConstantStruct, Constant)
+
+
+//===----------------------------------------------------------------------===//
+/// ConstantVector - Constant Vector Declarations
+///
+class ConstantVector : public Constant {
+  friend struct ConstantArrayCreator<ConstantVector, VectorType>;
+  ConstantVector(const ConstantVector &) LLVM_DELETED_FUNCTION;
+protected:
+  ConstantVector(VectorType *T, ArrayRef<Constant *> Val);
+public:
+  // ConstantVector accessors
+  static Constant *get(ArrayRef<Constant*> V);
+
+  /// getSplat - Return a ConstantVector with the specified constant in each
+  /// element.
+  static Constant *getSplat(unsigned NumElts, Constant *Elt);
+
+  /// Transparently provide more efficient getOperand methods.
+  DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
+
+  /// getType - Specialize the getType() method to always return a VectorType,
+  /// which reduces the amount of casting needed in parts of the compiler.
+  ///
+  inline VectorType *getType() const {
+    return reinterpret_cast<VectorType*>(Value::getType());
+  }
+
+  /// getSplatValue - If this is a splat constant, meaning that all of the
+  /// elements have the same value, return that value. Otherwise return NULL.
+  Constant *getSplatValue() const;
+
+  virtual void destroyConstant();
+  virtual void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U);
+
+  /// Methods for support type inquiry through isa, cast, and dyn_cast:
+  static bool classof(const Value *V) {
+    return V->getValueID() == ConstantVectorVal;
+  }
+};
+
+template <>
+struct OperandTraits<ConstantVector> :
+  public VariadicOperandTraits<ConstantVector> {
+};
+
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ConstantVector, Constant)
+
+//===----------------------------------------------------------------------===//
+/// ConstantPointerNull - a constant pointer value that points to null
+///
+class ConstantPointerNull : public Constant {
+  void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
+  ConstantPointerNull(const ConstantPointerNull &) LLVM_DELETED_FUNCTION;
+protected:
+  explicit ConstantPointerNull(PointerType *T)
+    : Constant(reinterpret_cast<Type*>(T),
+               Value::ConstantPointerNullVal, 0, 0) {}
+
+protected:
+  // allocate space for exactly zero operands
+  void *operator new(size_t s) {
+    return User::operator new(s, 0);
+  }
+public:
+  /// get() - Static factory methods - Return objects of the specified value
+  static ConstantPointerNull *get(PointerType *T);
+
+  virtual void destroyConstant();
+
+  /// getType - Specialize the getType() method to always return an PointerType,
+  /// which reduces the amount of casting needed in parts of the compiler.
+  ///
+  inline PointerType *getType() const {
+    return reinterpret_cast<PointerType*>(Value::getType());
+  }
+
+  /// Methods for support type inquiry through isa, cast, and dyn_cast:
+  static bool classof(const Value *V) {
+    return V->getValueID() == ConstantPointerNullVal;
+  }
+};
+
+//===----------------------------------------------------------------------===//
+/// ConstantDataSequential - A vector or array constant whose element type is a
+/// simple 1/2/4/8-byte integer or float/double, and whose elements are just
+/// simple data values (i.e. ConstantInt/ConstantFP).  This Constant node has no
+/// operands because it stores all of the elements of the constant as densely
+/// packed data, instead of as Value*'s.
+///
+/// This is the common base class of ConstantDataArray and ConstantDataVector.
+///
+class ConstantDataSequential : public Constant {
+  friend class LLVMContextImpl;
+  /// DataElements - A pointer to the bytes underlying this constant (which is
+  /// owned by the uniquing StringMap).
+  const char *DataElements;
+
+  /// Next - This forms a link list of ConstantDataSequential nodes that have
+  /// the same value but different type.  For example, 0,0,0,1 could be a 4
+  /// element array of i8, or a 1-element array of i32.  They'll both end up in
+  /// the same StringMap bucket, linked up.
+  ConstantDataSequential *Next;
+  void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
+  ConstantDataSequential(const ConstantDataSequential &) LLVM_DELETED_FUNCTION;
+protected:
+  explicit ConstantDataSequential(Type *ty, ValueTy VT, const char *Data)
+    : Constant(ty, VT, 0, 0), DataElements(Data), Next(0) {}
+  ~ConstantDataSequential() { delete Next; }
+
+  static Constant *getImpl(StringRef Bytes, Type *Ty);
+
+protected:
+  // allocate space for exactly zero operands.
+  void *operator new(size_t s) {
+    return User::operator new(s, 0);
+  }
+public:
+
+  /// isElementTypeCompatible - Return true if a ConstantDataSequential can be
+  /// formed with a vector or array of the specified element type.
+  /// ConstantDataArray only works with normal float and int types that are
+  /// stored densely in memory, not with things like i42 or x86_f80.
+  static bool isElementTypeCompatible(const Type *Ty);
+
+  /// getElementAsInteger - If this is a sequential container of integers (of
+  /// any size), return the specified element in the low bits of a uint64_t.
+  uint64_t getElementAsInteger(unsigned i) const;
+
+  /// getElementAsAPFloat - If this is a sequential container of floating point
+  /// type, return the specified element as an APFloat.
+  APFloat getElementAsAPFloat(unsigned i) const;
+
+  /// getElementAsFloat - If this is an sequential container of floats, return
+  /// the specified element as a float.
+  float getElementAsFloat(unsigned i) const;
+
+  /// getElementAsDouble - If this is an sequential container of doubles, return
+  /// the specified element as a double.
+  double getElementAsDouble(unsigned i) const;
+
+  /// getElementAsConstant - Return a Constant for a specified index's element.
+  /// Note that this has to compute a new constant to return, so it isn't as
+  /// efficient as getElementAsInteger/Float/Double.
+  Constant *getElementAsConstant(unsigned i) const;
+
+  /// getType - Specialize the getType() method to always return a
+  /// SequentialType, which reduces the amount of casting needed in parts of the
+  /// compiler.
+  inline SequentialType *getType() const {
+    return reinterpret_cast<SequentialType*>(Value::getType());
+  }
+
+  /// getElementType - Return the element type of the array/vector.
+  Type *getElementType() const;
+
+  /// getNumElements - Return the number of elements in the array or vector.
+  unsigned getNumElements() const;
+
+  /// getElementByteSize - Return the size (in bytes) of each element in the
+  /// array/vector.  The size of the elements is known to be a multiple of one
+  /// byte.
+  uint64_t getElementByteSize() const;
+
+
+  /// isString - This method returns true if this is an array of i8.
+  bool isString() const;
+
+  /// isCString - This method returns true if the array "isString", ends with a
+  /// nul byte, and does not contains any other nul bytes.
+  bool isCString() const;
+
+  /// getAsString - If this array is isString(), then this method returns the
+  /// array as a StringRef.  Otherwise, it asserts out.
+  ///
+  StringRef getAsString() const {
+    assert(isString() && "Not a string");
+    return getRawDataValues();
+  }
+
+  /// getAsCString - If this array is isCString(), then this method returns the
+  /// array (without the trailing null byte) as a StringRef. Otherwise, it
+  /// asserts out.
+  ///
+  StringRef getAsCString() const {
+    assert(isCString() && "Isn't a C string");
+    StringRef Str = getAsString();
+    return Str.substr(0, Str.size()-1);
+  }
+
+  /// getRawDataValues - Return the raw, underlying, bytes of this data.  Note
+  /// that this is an extremely tricky thing to work with, as it exposes the
+  /// host endianness of the data elements.
+  StringRef getRawDataValues() const;
+
+  virtual void destroyConstant();
+
+  /// Methods for support type inquiry through isa, cast, and dyn_cast:
+  ///
+  static bool classof(const Value *V) {
+    return V->getValueID() == ConstantDataArrayVal ||
+           V->getValueID() == ConstantDataVectorVal;
+  }
+private:
+  const char *getElementPointer(unsigned Elt) const;
+};
+
+//===----------------------------------------------------------------------===//
+/// ConstantDataArray - An array constant whose element type is a simple
+/// 1/2/4/8-byte integer or float/double, and whose elements are just simple
+/// data values (i.e. ConstantInt/ConstantFP).  This Constant node has no
+/// operands because it stores all of the elements of the constant as densely
+/// packed data, instead of as Value*'s.
+class ConstantDataArray : public ConstantDataSequential {
+  void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
+  ConstantDataArray(const ConstantDataArray &) LLVM_DELETED_FUNCTION;
+  virtual void anchor();
+  friend class ConstantDataSequential;
+  explicit ConstantDataArray(Type *ty, const char *Data)
+    : ConstantDataSequential(ty, ConstantDataArrayVal, Data) {}
+protected:
+  // allocate space for exactly zero operands.
+  void *operator new(size_t s) {
+    return User::operator new(s, 0);
+  }
+public:
+
+  /// get() constructors - Return a constant with array type with an element
+  /// count and element type matching the ArrayRef passed in.  Note that this
+  /// can return a ConstantAggregateZero object.
+  static Constant *get(LLVMContext &Context, ArrayRef<uint8_t> Elts);
+  static Constant *get(LLVMContext &Context, ArrayRef<uint16_t> Elts);
+  static Constant *get(LLVMContext &Context, ArrayRef<uint32_t> Elts);
+  static Constant *get(LLVMContext &Context, ArrayRef<uint64_t> Elts);
+  static Constant *get(LLVMContext &Context, ArrayRef<float> Elts);
+  static Constant *get(LLVMContext &Context, ArrayRef<double> Elts);
+
+  /// getString - This method constructs a CDS and initializes it with a text
+  /// string. The default behavior (AddNull==true) causes a null terminator to
+  /// be placed at the end of the array (increasing the length of the string by
+  /// one more than the StringRef would normally indicate.  Pass AddNull=false
+  /// to disable this behavior.
+  static Constant *getString(LLVMContext &Context, StringRef Initializer,
+                             bool AddNull = true);
+
+  /// getType - Specialize the getType() method to always return an ArrayType,
+  /// which reduces the amount of casting needed in parts of the compiler.
+  ///
+  inline ArrayType *getType() const {
+    return reinterpret_cast<ArrayType*>(Value::getType());
+  }
+
+  /// Methods for support type inquiry through isa, cast, and dyn_cast:
+  ///
+  static bool classof(const Value *V) {
+    return V->getValueID() == ConstantDataArrayVal;
+  }
+};
+
+//===----------------------------------------------------------------------===//
+/// ConstantDataVector - A vector constant whose element type is a simple
+/// 1/2/4/8-byte integer or float/double, and whose elements are just simple
+/// data values (i.e. ConstantInt/ConstantFP).  This Constant node has no
+/// operands because it stores all of the elements of the constant as densely
+/// packed data, instead of as Value*'s.
+class ConstantDataVector : public ConstantDataSequential {
+  void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
+  ConstantDataVector(const ConstantDataVector &) LLVM_DELETED_FUNCTION;
+  virtual void anchor();
+  friend class ConstantDataSequential;
+  explicit ConstantDataVector(Type *ty, const char *Data)
+  : ConstantDataSequential(ty, ConstantDataVectorVal, Data) {}
+protected:
+  // allocate space for exactly zero operands.
+  void *operator new(size_t s) {
+    return User::operator new(s, 0);
+  }
+public:
+
+  /// get() constructors - Return a constant with vector type with an element
+  /// count and element type matching the ArrayRef passed in.  Note that this
+  /// can return a ConstantAggregateZero object.
+  static Constant *get(LLVMContext &Context, ArrayRef<uint8_t> Elts);
+  static Constant *get(LLVMContext &Context, ArrayRef<uint16_t> Elts);
+  static Constant *get(LLVMContext &Context, ArrayRef<uint32_t> Elts);
+  static Constant *get(LLVMContext &Context, ArrayRef<uint64_t> Elts);
+  static Constant *get(LLVMContext &Context, ArrayRef<float> Elts);
+  static Constant *get(LLVMContext &Context, ArrayRef<double> Elts);
+
+  /// getSplat - Return a ConstantVector with the specified constant in each
+  /// element.  The specified constant has to be a of a compatible type (i8/i16/
+  /// i32/i64/float/double) and must be a ConstantFP or ConstantInt.
+  static Constant *getSplat(unsigned NumElts, Constant *Elt);
+
+  /// getSplatValue - If this is a splat constant, meaning that all of the
+  /// elements have the same value, return that value. Otherwise return NULL.
+  Constant *getSplatValue() const;
+
+  /// getType - Specialize the getType() method to always return a VectorType,
+  /// which reduces the amount of casting needed in parts of the compiler.
+  ///
+  inline VectorType *getType() const {
+    return reinterpret_cast<VectorType*>(Value::getType());
+  }
+
+  /// Methods for support type inquiry through isa, cast, and dyn_cast:
+  ///
+  static bool classof(const Value *V) {
+    return V->getValueID() == ConstantDataVectorVal;
+  }
+};
+
+
+
+/// BlockAddress - The address of a basic block.
+///
+class BlockAddress : public Constant {
+  void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
+  void *operator new(size_t s) { return User::operator new(s, 2); }
+  BlockAddress(Function *F, BasicBlock *BB);
+public:
+  /// get - Return a BlockAddress for the specified function and basic block.
+  static BlockAddress *get(Function *F, BasicBlock *BB);
+
+  /// get - Return a BlockAddress for the specified basic block.  The basic
+  /// block must be embedded into a function.
+  static BlockAddress *get(BasicBlock *BB);
+
+  /// Transparently provide more efficient getOperand methods.
+  DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
+
+  Function *getFunction() const { return (Function*)Op<0>().get(); }
+  BasicBlock *getBasicBlock() const { return (BasicBlock*)Op<1>().get(); }
+
+  virtual void destroyConstant();
+  virtual void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U);
+
+  /// Methods for support type inquiry through isa, cast, and dyn_cast:
+  static inline bool classof(const Value *V) {
+    return V->getValueID() == BlockAddressVal;
+  }
+};
+
+template <>
+struct OperandTraits<BlockAddress> :
+  public FixedNumOperandTraits<BlockAddress, 2> {
+};
+
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(BlockAddress, Value)
+
+
+//===----------------------------------------------------------------------===//
+/// ConstantExpr - a constant value that is initialized with an expression using
+/// other constant values.
+///
+/// This class uses the standard Instruction opcodes to define the various
+/// constant expressions.  The Opcode field for the ConstantExpr class is
+/// maintained in the Value::SubclassData field.
+class ConstantExpr : public Constant {
+  friend struct ConstantCreator<ConstantExpr,Type,
+                            std::pair<unsigned, std::vector<Constant*> > >;
+  friend struct ConvertConstantType<ConstantExpr, Type>;
+
+protected:
+  ConstantExpr(Type *ty, unsigned Opcode, Use *Ops, unsigned NumOps)
+    : Constant(ty, ConstantExprVal, Ops, NumOps) {
+    // Operation type (an Instruction opcode) is stored as the SubclassData.
+    setValueSubclassData(Opcode);
+  }
+
+public:
+  // Static methods to construct a ConstantExpr of different kinds.  Note that
+  // these methods may return a object that is not an instance of the
+  // ConstantExpr class, because they will attempt to fold the constant
+  // expression into something simpler if possible.
+
+  /// getAlignOf constant expr - computes the alignment of a type in a target
+  /// independent way (Note: the return type is an i64).
+  static Constant *getAlignOf(Type *Ty);
+
+  /// getSizeOf constant expr - computes the (alloc) size of a type (in
+  /// address-units, not bits) in a target independent way (Note: the return
+  /// type is an i64).
+  ///
+  static Constant *getSizeOf(Type *Ty);
+
+  /// getOffsetOf constant expr - computes the offset of a struct field in a
+  /// target independent way (Note: the return type is an i64).
+  ///
+  static Constant *getOffsetOf(StructType *STy, unsigned FieldNo);
+
+  /// getOffsetOf constant expr - This is a generalized form of getOffsetOf,
+  /// which supports any aggregate type, and any Constant index.
+  ///
+  static Constant *getOffsetOf(Type *Ty, Constant *FieldNo);
+
+  static Constant *getNeg(Constant *C, bool HasNUW = false, bool HasNSW =false);
+  static Constant *getFNeg(Constant *C);
+  static Constant *getNot(Constant *C);
+  static Constant *getAdd(Constant *C1, Constant *C2,
+                          bool HasNUW = false, bool HasNSW = false);
+  static Constant *getFAdd(Constant *C1, Constant *C2);
+  static Constant *getSub(Constant *C1, Constant *C2,
+                          bool HasNUW = false, bool HasNSW = false);
+  static Constant *getFSub(Constant *C1, Constant *C2);
+  static Constant *getMul(Constant *C1, Constant *C2,
+                          bool HasNUW = false, bool HasNSW = false);
+  static Constant *getFMul(Constant *C1, Constant *C2);
+  static Constant *getUDiv(Constant *C1, Constant *C2, bool isExact = false);
+  static Constant *getSDiv(Constant *C1, Constant *C2, bool isExact = false);
+  static Constant *getFDiv(Constant *C1, Constant *C2);
+  static Constant *getURem(Constant *C1, Constant *C2);
+  static Constant *getSRem(Constant *C1, Constant *C2);
+  static Constant *getFRem(Constant *C1, Constant *C2);
+  static Constant *getAnd(Constant *C1, Constant *C2);
+  static Constant *getOr(Constant *C1, Constant *C2);
+  static Constant *getXor(Constant *C1, Constant *C2);
+  static Constant *getShl(Constant *C1, Constant *C2,
+                          bool HasNUW = false, bool HasNSW = false);
+  static Constant *getLShr(Constant *C1, Constant *C2, bool isExact = false);
+  static Constant *getAShr(Constant *C1, Constant *C2, bool isExact = false);
+  static Constant *getTrunc   (Constant *C, Type *Ty);
+  static Constant *getSExt    (Constant *C, Type *Ty);
+  static Constant *getZExt    (Constant *C, Type *Ty);
+  static Constant *getFPTrunc (Constant *C, Type *Ty);
+  static Constant *getFPExtend(Constant *C, Type *Ty);
+  static Constant *getUIToFP  (Constant *C, Type *Ty);
+  static Constant *getSIToFP  (Constant *C, Type *Ty);
+  static Constant *getFPToUI  (Constant *C, Type *Ty);
+  static Constant *getFPToSI  (Constant *C, Type *Ty);
+  static Constant *getPtrToInt(Constant *C, Type *Ty);
+  static Constant *getIntToPtr(Constant *C, Type *Ty);
+  static Constant *getBitCast (Constant *C, Type *Ty);
+
+  static Constant *getNSWNeg(Constant *C) { return getNeg(C, false, true); }
+  static Constant *getNUWNeg(Constant *C) { return getNeg(C, true, false); }
+  static Constant *getNSWAdd(Constant *C1, Constant *C2) {
+    return getAdd(C1, C2, false, true);
+  }
+  static Constant *getNUWAdd(Constant *C1, Constant *C2) {
+    return getAdd(C1, C2, true, false);
+  }
+  static Constant *getNSWSub(Constant *C1, Constant *C2) {
+    return getSub(C1, C2, false, true);
+  }
+  static Constant *getNUWSub(Constant *C1, Constant *C2) {
+    return getSub(C1, C2, true, false);
+  }
+  static Constant *getNSWMul(Constant *C1, Constant *C2) {
+    return getMul(C1, C2, false, true);
+  }
+  static Constant *getNUWMul(Constant *C1, Constant *C2) {
+    return getMul(C1, C2, true, false);
+  }
+  static Constant *getNSWShl(Constant *C1, Constant *C2) {
+    return getShl(C1, C2, false, true);
+  }
+  static Constant *getNUWShl(Constant *C1, Constant *C2) {
+    return getShl(C1, C2, true, false);
+  }
+  static Constant *getExactSDiv(Constant *C1, Constant *C2) {
+    return getSDiv(C1, C2, true);
+  }
+  static Constant *getExactUDiv(Constant *C1, Constant *C2) {
+    return getUDiv(C1, C2, true);
+  }
+  static Constant *getExactAShr(Constant *C1, Constant *C2) {
+    return getAShr(C1, C2, true);
+  }
+  static Constant *getExactLShr(Constant *C1, Constant *C2) {
+    return getLShr(C1, C2, true);
+  }
+
+  /// getBinOpIdentity - Return the identity for the given binary operation,
+  /// i.e. a constant C such that X op C = X and C op X = X for every X.  It
+  /// returns null if the operator doesn't have an identity.
+  static Constant *getBinOpIdentity(unsigned Opcode, Type *Ty);
+
+  /// getBinOpAbsorber - Return the absorbing element for the given binary
+  /// operation, i.e. a constant C such that X op C = C and C op X = C for
+  /// every X.  For example, this returns zero for integer multiplication.
+  /// It returns null if the operator doesn't have an absorbing element.
+  static Constant *getBinOpAbsorber(unsigned Opcode, Type *Ty);
+
+  /// Transparently provide more efficient getOperand methods.
+  DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
+
+  // @brief Convenience function for getting one of the casting operations
+  // using a CastOps opcode.
+  static Constant *getCast(
+    unsigned ops,  ///< The opcode for the conversion
+    Constant *C,   ///< The constant to be converted
+    Type *Ty ///< The type to which the constant is converted
+  );
+
+  // @brief Create a ZExt or BitCast cast constant expression
+  static Constant *getZExtOrBitCast(
+    Constant *C,   ///< The constant to zext or bitcast
+    Type *Ty ///< The type to zext or bitcast C to
+  );
+
+  // @brief Create a SExt or BitCast cast constant expression
+  static Constant *getSExtOrBitCast(
+    Constant *C,   ///< The constant to sext or bitcast
+    Type *Ty ///< The type to sext or bitcast C to
+  );
+
+  // @brief Create a Trunc or BitCast cast constant expression
+  static Constant *getTruncOrBitCast(
+    Constant *C,   ///< The constant to trunc or bitcast
+    Type *Ty ///< The type to trunc or bitcast C to
+  );
+
+  /// @brief Create a BitCast or a PtrToInt cast constant expression
+  static Constant *getPointerCast(
+    Constant *C,   ///< The pointer value to be casted (operand 0)
+    Type *Ty ///< The type to which cast should be made
+  );
+
+  /// @brief Create a ZExt, Bitcast or Trunc for integer -> integer casts
+  static Constant *getIntegerCast(
+    Constant *C,    ///< The integer constant to be casted
+    Type *Ty, ///< The integer type to cast to
+    bool isSigned   ///< Whether C should be treated as signed or not
+  );
+
+  /// @brief Create a FPExt, Bitcast or FPTrunc for fp -> fp casts
+  static Constant *getFPCast(
+    Constant *C,    ///< The integer constant to be casted
+    Type *Ty ///< The integer type to cast to
+  );
+
+  /// @brief Return true if this is a convert constant expression
+  bool isCast() const;
+
+  /// @brief Return true if this is a compare constant expression
+  bool isCompare() const;
+
+  /// @brief Return true if this is an insertvalue or extractvalue expression,
+  /// and the getIndices() method may be used.
+  bool hasIndices() const;
+
+  /// @brief Return true if this is a getelementptr expression and all
+  /// the index operands are compile-time known integers within the
+  /// corresponding notional static array extents. Note that this is
+  /// not equivalant to, a subset of, or a superset of the "inbounds"
+  /// property.
+  bool isGEPWithNoNotionalOverIndexing() const;
+
+  /// Select constant expr
+  ///
+  static Constant *getSelect(Constant *C, Constant *V1, Constant *V2);
+
+  /// get - Return a binary or shift operator constant expression,
+  /// folding if possible.
+  ///
+  static Constant *get(unsigned Opcode, Constant *C1, Constant *C2,
+                       unsigned Flags = 0);
+
+  /// @brief Return an ICmp or FCmp comparison operator constant expression.
+  static Constant *getCompare(unsigned short pred, Constant *C1, Constant *C2);
+
+  /// get* - Return some common constants without having to
+  /// specify the full Instruction::OPCODE identifier.
+  ///
+  static Constant *getICmp(unsigned short pred, Constant *LHS, Constant *RHS);
+  static Constant *getFCmp(unsigned short pred, Constant *LHS, Constant *RHS);
+
+  /// Getelementptr form.  Value* is only accepted for convenience;
+  /// all elements must be Constant's.
+  ///
+  static Constant *getGetElementPtr(Constant *C,
+                                    ArrayRef<Constant *> IdxList,
+                                    bool InBounds = false) {
+    return getGetElementPtr(C, makeArrayRef((Value * const *)IdxList.data(),
+                                            IdxList.size()),
+                            InBounds);
+  }
+  static Constant *getGetElementPtr(Constant *C,
+                                    Constant *Idx,
+                                    bool InBounds = false) {
+    // This form of the function only exists to avoid ambiguous overload
+    // warnings about whether to convert Idx to ArrayRef<Constant *> or
+    // ArrayRef<Value *>.
+    return getGetElementPtr(C, cast<Value>(Idx), InBounds);
+  }
+  static Constant *getGetElementPtr(Constant *C,
+                                    ArrayRef<Value *> IdxList,
+                                    bool InBounds = false);
+
+  /// Create an "inbounds" getelementptr. See the documentation for the
+  /// "inbounds" flag in LangRef.html for details.
+  static Constant *getInBoundsGetElementPtr(Constant *C,
+                                            ArrayRef<Constant *> IdxList) {
+    return getGetElementPtr(C, IdxList, true);
+  }
+  static Constant *getInBoundsGetElementPtr(Constant *C,
+                                            Constant *Idx) {
+    // This form of the function only exists to avoid ambiguous overload
+    // warnings about whether to convert Idx to ArrayRef<Constant *> or
+    // ArrayRef<Value *>.
+    return getGetElementPtr(C, Idx, true);
+  }
+  static Constant *getInBoundsGetElementPtr(Constant *C,
+                                            ArrayRef<Value *> IdxList) {
+    return getGetElementPtr(C, IdxList, true);
+  }
+
+  static Constant *getExtractElement(Constant *Vec, Constant *Idx);
+  static Constant *getInsertElement(Constant *Vec, Constant *Elt,Constant *Idx);
+  static Constant *getShuffleVector(Constant *V1, Constant *V2, Constant *Mask);
+  static Constant *getExtractValue(Constant *Agg, ArrayRef<unsigned> Idxs);
+  static Constant *getInsertValue(Constant *Agg, Constant *Val,
+                                  ArrayRef<unsigned> Idxs);
+
+  /// getOpcode - Return the opcode at the root of this constant expression
+  unsigned getOpcode() const { return getSubclassDataFromValue(); }
+
+  /// getPredicate - Return the ICMP or FCMP predicate value. Assert if this is
+  /// not an ICMP or FCMP constant expression.
+  unsigned getPredicate() const;
+
+  /// getIndices - Assert that this is an insertvalue or exactvalue
+  /// expression and return the list of indices.
+  ArrayRef<unsigned> getIndices() const;
+
+  /// getOpcodeName - Return a string representation for an opcode.
+  const char *getOpcodeName() const;
+
+  /// getWithOperandReplaced - Return a constant expression identical to this
+  /// one, but with the specified operand set to the specified value.
+  Constant *getWithOperandReplaced(unsigned OpNo, Constant *Op) const;
+
+  /// getWithOperands - This returns the current constant expression with the
+  /// operands replaced with the specified values.  The specified array must
+  /// have the same number of operands as our current one.
+  Constant *getWithOperands(ArrayRef<Constant*> Ops) const {
+    return getWithOperands(Ops, getType());
+  }
+
+  /// getWithOperands - This returns the current constant expression with the
+  /// operands replaced with the specified values and with the specified result
+  /// type.  The specified array must have the same number of operands as our
+  /// current one.
+  Constant *getWithOperands(ArrayRef<Constant*> Ops, Type *Ty) const;
+
+  /// getAsInstruction - Returns an Instruction which implements the same operation
+  /// as this ConstantExpr. The instruction is not linked to any basic block.
+  ///
+  /// A better approach to this could be to have a constructor for Instruction
+  /// which would take a ConstantExpr parameter, but that would have spread 
+  /// implementation details of ConstantExpr outside of Constants.cpp, which 
+  /// would make it harder to remove ConstantExprs altogether.
+  Instruction *getAsInstruction();
+
+  virtual void destroyConstant();
+  virtual void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U);
+
+  /// Methods for support type inquiry through isa, cast, and dyn_cast:
+  static inline bool classof(const Value *V) {
+    return V->getValueID() == ConstantExprVal;
+  }
+
+private:
+  // Shadow Value::setValueSubclassData with a private forwarding method so that
+  // subclasses cannot accidentally use it.
+  void setValueSubclassData(unsigned short D) {
+    Value::setValueSubclassData(D);
+  }
+};
+
+template <>
+struct OperandTraits<ConstantExpr> :
+  public VariadicOperandTraits<ConstantExpr, 1> {
+};
+
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ConstantExpr, Constant)
+
+//===----------------------------------------------------------------------===//
+/// UndefValue - 'undef' values are things that do not have specified contents.
+/// These are used for a variety of purposes, including global variable
+/// initializers and operands to instructions.  'undef' values can occur with
+/// any first-class type.
+///
+/// Undef values aren't exactly constants; if they have multiple uses, they
+/// can appear to have different bit patterns at each use. See
+/// LangRef.html#undefvalues for details.
+///
+class UndefValue : public Constant {
+  void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
+  UndefValue(const UndefValue &) LLVM_DELETED_FUNCTION;
+protected:
+  explicit UndefValue(Type *T) : Constant(T, UndefValueVal, 0, 0) {}
+protected:
+  // allocate space for exactly zero operands
+  void *operator new(size_t s) {
+    return User::operator new(s, 0);
+  }
+public:
+  /// get() - Static factory methods - Return an 'undef' object of the specified
+  /// type.
+  ///
+  static UndefValue *get(Type *T);
+
+  /// getSequentialElement - If this Undef has array or vector type, return a
+  /// undef with the right element type.
+  UndefValue *getSequentialElement() const;
+
+  /// getStructElement - If this undef has struct type, return a undef with the
+  /// right element type for the specified element.
+  UndefValue *getStructElement(unsigned Elt) const;
+
+  /// getElementValue - Return an undef of the right value for the specified GEP
+  /// index.
+  UndefValue *getElementValue(Constant *C) const;
+
+  /// getElementValue - Return an undef of the right value for the specified GEP
+  /// index.
+  UndefValue *getElementValue(unsigned Idx) const;
+
+  virtual void destroyConstant();
+
+  /// Methods for support type inquiry through isa, cast, and dyn_cast:
+  static bool classof(const Value *V) {
+    return V->getValueID() == UndefValueVal;
+  }
+};
+
+} // End llvm namespace
+
+#endif