include/llvm/CodeGen/MachineValueType.h - llvm - Git at Google

 //===- CodeGen/MachineValueType.h - Machine-Level types ---------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file defines the set of machine-level target independent types which
 // legal values in the code generator use.
 //
 //===----------------------------------------------------------------------===//

 #ifndef LLVM_CODEGEN_MACHINEVALUETYPE_H
 #define LLVM_CODEGEN_MACHINEVALUETYPE_H

 #include "llvm/ADT/iterator_range.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/MathExtras.h"

 namespace llvm {

   class Type;

   /// MVT - Machine Value Type. Every type that is supported natively by some
   /// processor targeted by LLVM occurs here. This means that any legal value
   /// type can be represented by an MVT.
 class MVT {
   public:
     enum SimpleValueType {
       // INVALID_SIMPLE_VALUE_TYPE - Simple value types less than zero are
       // considered extended value types.
       INVALID_SIMPLE_VALUE_TYPE = -1,

       // If you change this numbering, you must change the values in
       // ValueTypes.td as well!
       Other          =   0,   // This is a non-standard value
       i1             =   1,   // This is a 1 bit integer value
       i8             =   2,   // This is an 8 bit integer value
       i16            =   3,   // This is a 16 bit integer value
       i32            =   4,   // This is a 32 bit integer value
       i64            =   5,   // This is a 64 bit integer value
       i128           =   6,   // This is a 128 bit integer value

       FIRST_INTEGER_VALUETYPE = i1,
       LAST_INTEGER_VALUETYPE  = i128,

       f16            =   7,   // This is a 16 bit floating point value
       f32            =   8,   // This is a 32 bit floating point value
       f64            =   9,   // This is a 64 bit floating point value
       f80            =  10,   // This is a 80 bit floating point value
       f128           =  11,   // This is a 128 bit floating point value
       ppcf128        =  12,   // This is a PPC 128-bit floating point value

       FIRST_FP_VALUETYPE = f16,
       LAST_FP_VALUETYPE  = ppcf128,

       v2i1           =  13,   //  2 x i1
       v4i1           =  14,   //  4 x i1
       v8i1           =  15,   //  8 x i1
       v16i1          =  16,   // 16 x i1
       v32i1          =  17,   // 32 x i1
       v64i1          =  18,   // 64 x i1

       v1i8           =  19,   //  1 x i8
       v2i8           =  20,   //  2 x i8
       v4i8           =  21,   //  4 x i8
       v8i8           =  22,   //  8 x i8
       v16i8          =  23,   // 16 x i8
       v32i8          =  24,   // 32 x i8
       v64i8          =  25,   // 64 x i8
       v1i16          =  26,   //  1 x i16
       v2i16          =  27,   //  2 x i16
       v4i16          =  28,   //  4 x i16
       v8i16          =  29,   //  8 x i16
       v16i16         =  30,   // 16 x i16
       v32i16         =  31,   // 32 x i16
       v1i32          =  32,   //  1 x i32
       v2i32          =  33,   //  2 x i32
       v4i32          =  34,   //  4 x i32
       v8i32          =  35,   //  8 x i32
       v16i32         =  36,   // 16 x i32
       v1i64          =  37,   //  1 x i64
       v2i64          =  38,   //  2 x i64
       v4i64          =  39,   //  4 x i64
       v8i64          =  40,   //  8 x i64
       v16i64         =  41,   // 16 x i64
       v1i128         =  42,   //  1 x i128

       FIRST_INTEGER_VECTOR_VALUETYPE = v2i1,
       LAST_INTEGER_VECTOR_VALUETYPE = v1i128,

       v2f16          =  43,   //  2 x f16
       v4f16          =  44,   //  4 x f16
       v8f16          =  45,   //  8 x f16
       v1f32          =  46,   //  1 x f32
       v2f32          =  47,   //  2 x f32
       v4f32          =  48,   //  4 x f32
       v8f32          =  49,   //  8 x f32
       v16f32         =  50,   // 16 x f32
       v1f64          =  51,   //  1 x f64
       v2f64          =  52,   //  2 x f64
       v4f64          =  53,   //  4 x f64
       v8f64          =  54,   //  8 x f64

       FIRST_FP_VECTOR_VALUETYPE = v2f16,
       LAST_FP_VECTOR_VALUETYPE = v8f64,

       FIRST_VECTOR_VALUETYPE = v2i1,
       LAST_VECTOR_VALUETYPE  = v8f64,

       x86mmx         =  55,   // This is an X86 MMX value

       Glue           =  56,   // This glues nodes together during pre-RA sched

       isVoid         =  57,   // This has no value

       Untyped        =  58,   // This value takes a register, but has
                               // unspecified type.  The register class
                               // will be determined by the opcode.

       FIRST_VALUETYPE = 0,    // This is always the beginning of the list.
       LAST_VALUETYPE =  59,   // This always remains at the end of the list.

       // This is the current maximum for LAST_VALUETYPE.
       // MVT::MAX_ALLOWED_VALUETYPE is used for asserts and to size bit vectors
       // This value must be a multiple of 32.
       MAX_ALLOWED_VALUETYPE = 64,

       // Metadata - This is MDNode or MDString.
       Metadata       = 250,

       // iPTRAny - An int value the size of the pointer of the current
       // target to any address space. This must only be used internal to
       // tblgen. Other than for overloading, we treat iPTRAny the same as iPTR.
       iPTRAny        = 251,

       // vAny - A vector with any length and element size. This is used
       // for intrinsics that have overloadings based on vector types.
       // This is only for tblgen's consumption!
       vAny           = 252,

       // fAny - Any floating-point or vector floating-point value. This is used
       // for intrinsics that have overloadings based on floating-point types.
       // This is only for tblgen's consumption!
       fAny           = 253,

       // iAny - An integer or vector integer value of any bit width. This is
       // used for intrinsics that have overloadings based on integer bit widths.
       // This is only for tblgen's consumption!
       iAny           = 254,

       // iPTR - An int value the size of the pointer of the current
       // target.  This should only be used internal to tblgen!
       iPTR           = 255,

       // Any - Any type. This is used for intrinsics that have overloadings.
       // This is only for tblgen's consumption!
       Any            = 256
     };

     SimpleValueType SimpleTy;

     LLVM_CONSTEXPR MVT() : SimpleTy(INVALID_SIMPLE_VALUE_TYPE) {}
     LLVM_CONSTEXPR MVT(SimpleValueType SVT) : SimpleTy(SVT) { }

     bool operator>(const MVT& S)  const { return SimpleTy >  S.SimpleTy; }
     bool operator<(const MVT& S)  const { return SimpleTy <  S.SimpleTy; }
     bool operator==(const MVT& S) const { return SimpleTy == S.SimpleTy; }
     bool operator!=(const MVT& S) const { return SimpleTy != S.SimpleTy; }
     bool operator>=(const MVT& S) const { return SimpleTy >= S.SimpleTy; }
     bool operator<=(const MVT& S) const { return SimpleTy <= S.SimpleTy; }

     /// isValid - Return true if this is a valid simple valuetype.
     bool isValid() const {
       return (SimpleTy >= MVT::FIRST_VALUETYPE &&
               SimpleTy < MVT::LAST_VALUETYPE);
     }

     /// isFloatingPoint - Return true if this is a FP, or a vector FP type.
     bool isFloatingPoint() const {
       return ((SimpleTy >= MVT::FIRST_FP_VALUETYPE &&
                SimpleTy <= MVT::LAST_FP_VALUETYPE) ||
               (SimpleTy >= MVT::FIRST_FP_VECTOR_VALUETYPE &&
                SimpleTy <= MVT::LAST_FP_VECTOR_VALUETYPE));
     }

     /// isInteger - Return true if this is an integer, or a vector integer type.
     bool isInteger() const {
       return ((SimpleTy >= MVT::FIRST_INTEGER_VALUETYPE &&
                SimpleTy <= MVT::LAST_INTEGER_VALUETYPE) ||
               (SimpleTy >= MVT::FIRST_INTEGER_VECTOR_VALUETYPE &&
                SimpleTy <= MVT::LAST_INTEGER_VECTOR_VALUETYPE));
     }

     /// isVector - Return true if this is a vector value type.
     bool isVector() const {
       return (SimpleTy >= MVT::FIRST_VECTOR_VALUETYPE &&
               SimpleTy <= MVT::LAST_VECTOR_VALUETYPE);
     }

     /// is16BitVector - Return true if this is a 16-bit vector type.
     bool is16BitVector() const {
       return (SimpleTy == MVT::v2i8  || SimpleTy == MVT::v1i16 ||
               SimpleTy == MVT::v16i1);
     }

     /// is32BitVector - Return true if this is a 32-bit vector type.
     bool is32BitVector() const {
       return (SimpleTy == MVT::v4i8  || SimpleTy == MVT::v2i16 ||
               SimpleTy == MVT::v1i32 || SimpleTy == MVT::v2f16 ||
               SimpleTy == MVT::v1f32);
     }

     /// is64BitVector - Return true if this is a 64-bit vector type.
     bool is64BitVector() const {
       return (SimpleTy == MVT::v8i8  || SimpleTy == MVT::v4i16 ||
               SimpleTy == MVT::v2i32 || SimpleTy == MVT::v1i64 ||
               SimpleTy == MVT::v4f16 || SimpleTy == MVT::v2f32 ||
               SimpleTy == MVT::v1f64);
     }

     /// is128BitVector - Return true if this is a 128-bit vector type.
     bool is128BitVector() const {
       return (SimpleTy == MVT::v16i8  || SimpleTy == MVT::v8i16 ||
               SimpleTy == MVT::v4i32  || SimpleTy == MVT::v2i64 ||
               SimpleTy == MVT::v1i128 || SimpleTy == MVT::v8f16 ||
               SimpleTy == MVT::v4f32  || SimpleTy == MVT::v2f64);
     }

     /// is256BitVector - Return true if this is a 256-bit vector type.
     bool is256BitVector() const {
       return (SimpleTy == MVT::v8f32 || SimpleTy == MVT::v4f64  ||
               SimpleTy == MVT::v32i8 || SimpleTy == MVT::v16i16 ||
               SimpleTy == MVT::v8i32 || SimpleTy == MVT::v4i64);
     }

     /// is512BitVector - Return true if this is a 512-bit vector type.
     bool is512BitVector() const {
       return (SimpleTy == MVT::v8f64 || SimpleTy == MVT::v16f32 ||
               SimpleTy == MVT::v64i8 || SimpleTy == MVT::v32i16 ||
               SimpleTy == MVT::v8i64 || SimpleTy == MVT::v16i32);
     }

     /// is1024BitVector - Return true if this is a 1024-bit vector type.
     bool is1024BitVector() const {
       return (SimpleTy == MVT::v16i64);
     }

     /// isOverloaded - Return true if this is an overloaded type for TableGen.
     bool isOverloaded() const {
       return (SimpleTy==MVT::Any  ||
               SimpleTy==MVT::iAny || SimpleTy==MVT::fAny ||
               SimpleTy==MVT::vAny || SimpleTy==MVT::iPTRAny);
     }

     /// isPow2VectorType - Returns true if the given vector is a power of 2.
     bool isPow2VectorType() const {
       unsigned NElts = getVectorNumElements();
       return !(NElts & (NElts - 1));
     }

     /// getPow2VectorType - Widens the length of the given vector MVT up to
     /// the nearest power of 2 and returns that type.
     MVT getPow2VectorType() const {
       if (isPow2VectorType())
         return *this;

       unsigned NElts = getVectorNumElements();
       unsigned Pow2NElts = 1 << Log2_32_Ceil(NElts);
       return MVT::getVectorVT(getVectorElementType(), Pow2NElts);
     }

     /// getScalarType - If this is a vector type, return the element type,
     /// otherwise return this.
     MVT getScalarType() const {
       return isVector() ? getVectorElementType() : *this;
     }

     MVT getVectorElementType() const {
       switch (SimpleTy) {
       default:
         llvm_unreachable("Not a vector MVT!");
       case v2i1 :
       case v4i1 :
       case v8i1 :
       case v16i1 :
       case v32i1 :
       case v64i1: return i1;
       case v1i8 :
       case v2i8 :
       case v4i8 :
       case v8i8 :
       case v16i8:
       case v32i8:
       case v64i8: return i8;
       case v1i16:
       case v2i16:
       case v4i16:
       case v8i16:
       case v16i16:
       case v32i16: return i16;
       case v1i32:
       case v2i32:
       case v4i32:
       case v8i32:
       case v16i32: return i32;
       case v1i64:
       case v2i64:
       case v4i64:
       case v8i64:
       case v16i64: return i64;
       case v1i128: return i128;
       case v2f16:
       case v4f16:
       case v8f16: return f16;
       case v1f32:
       case v2f32:
       case v4f32:
       case v8f32:
       case v16f32: return f32;
       case v1f64:
       case v2f64:
       case v4f64:
       case v8f64: return f64;
       }
     }

     unsigned getVectorNumElements() const {
       switch (SimpleTy) {
       default:
         llvm_unreachable("Not a vector MVT!");
       case v32i1:
       case v32i8:
       case v32i16: return 32;
       case v64i1:
       case v64i8: return 64;
       case v16i1:
       case v16i8:
       case v16i16:
       case v16i32:
       case v16i64:
       case v16f32: return 16;
       case v8i1 :
       case v8i8 :
       case v8i16:
       case v8i32:
       case v8i64:
       case v8f16:
       case v8f32:
       case v8f64: return 8;
       case v4i1:
       case v4i8:
       case v4i16:
       case v4i32:
       case v4i64:
       case v4f16:
       case v4f32:
       case v4f64: return 4;
       case v2i1:
       case v2i8:
       case v2i16:
       case v2i32:
       case v2i64:
       case v2f16:
       case v2f32:
       case v2f64: return 2;
       case v1i8:
       case v1i16:
       case v1i32:
       case v1i64:
       case v1i128:
       case v1f32:
       case v1f64: return 1;
       }
     }

     unsigned getSizeInBits() const {
       switch (SimpleTy) {
       default:
         llvm_unreachable("getSizeInBits called on extended MVT.");
       case Other:
         llvm_unreachable("Value type is non-standard value, Other.");
       case iPTR:
         llvm_unreachable("Value type size is target-dependent. Ask TLI.");
       case iPTRAny:
       case iAny:
       case fAny:
       case vAny:
       case Any:
         llvm_unreachable("Value type is overloaded.");
       case Metadata:
         llvm_unreachable("Value type is metadata.");
       case i1  :  return 1;
       case v2i1:  return 2;
       case v4i1:  return 4;
       case i8  :
       case v1i8:
       case v8i1: return 8;
       case i16 :
       case f16:
       case v16i1:
       case v2i8:
       case v1i16: return 16;
       case f32 :
       case i32 :
       case v32i1:
       case v4i8:
       case v2i16:
       case v2f16:
       case v1f32:
       case v1i32: return 32;
       case x86mmx:
       case f64 :
       case i64 :
       case v64i1:
       case v8i8:
       case v4i16:
       case v2i32:
       case v1i64:
       case v4f16:
       case v2f32:
       case v1f64: return 64;
       case f80 :  return 80;
       case f128:
       case ppcf128:
       case i128:
       case v16i8:
       case v8i16:
       case v4i32:
       case v2i64:
       case v1i128:
       case v8f16:
       case v4f32:
       case v2f64: return 128;
       case v32i8:
       case v16i16:
       case v8i32:
       case v4i64:
       case v8f32:
       case v4f64: return 256;
       case v64i8:
       case v32i16:
       case v16i32:
       case v8i64:
       case v16f32:
       case v8f64: return 512;
       case v16i64:return 1024;
       }
     }

     unsigned getScalarSizeInBits() const {
       return getScalarType().getSizeInBits();
     }

     /// getStoreSize - Return the number of bytes overwritten by a store
     /// of the specified value type.
     unsigned getStoreSize() const {
       return (getSizeInBits() + 7) / 8;
     }

     /// getStoreSizeInBits - Return the number of bits overwritten by a store
     /// of the specified value type.
     unsigned getStoreSizeInBits() const {
       return getStoreSize() * 8;
     }

     /// Return true if this has more bits than VT.
     bool bitsGT(MVT VT) const {
       return getSizeInBits() > VT.getSizeInBits();
     }

     /// Return true if this has no less bits than VT.
     bool bitsGE(MVT VT) const {
       return getSizeInBits() >= VT.getSizeInBits();
     }

     /// Return true if this has less bits than VT.
     bool bitsLT(MVT VT) const {
       return getSizeInBits() < VT.getSizeInBits();
     }

     /// Return true if this has no more bits than VT.
     bool bitsLE(MVT VT) const {
       return getSizeInBits() <= VT.getSizeInBits();
     }


     static MVT getFloatingPointVT(unsigned BitWidth) {
       switch (BitWidth) {
       default:
         llvm_unreachable("Bad bit width!");
       case 16:
         return MVT::f16;
       case 32:
         return MVT::f32;
       case 64:
         return MVT::f64;
       case 80:
         return MVT::f80;
       case 128:
         return MVT::f128;
       }
     }

     static MVT getIntegerVT(unsigned BitWidth) {
       switch (BitWidth) {
       default:
         return (MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE);
       case 1:
         return MVT::i1;
       case 8:
         return MVT::i8;
       case 16:
         return MVT::i16;
       case 32:
         return MVT::i32;
       case 64:
         return MVT::i64;
       case 128:
         return MVT::i128;
       }
     }

     static MVT getVectorVT(MVT VT, unsigned NumElements) {
       switch (VT.SimpleTy) {
       default:
         break;
       case MVT::i1:
         if (NumElements == 2)  return MVT::v2i1;
         if (NumElements == 4)  return MVT::v4i1;
         if (NumElements == 8)  return MVT::v8i1;
         if (NumElements == 16) return MVT::v16i1;
         if (NumElements == 32) return MVT::v32i1;
         if (NumElements == 64) return MVT::v64i1;
         break;
       case MVT::i8:
         if (NumElements == 1)  return MVT::v1i8;
         if (NumElements == 2)  return MVT::v2i8;
         if (NumElements == 4)  return MVT::v4i8;
         if (NumElements == 8)  return MVT::v8i8;
         if (NumElements == 16) return MVT::v16i8;
         if (NumElements == 32) return MVT::v32i8;
         if (NumElements == 64) return MVT::v64i8;
         break;
       case MVT::i16:
         if (NumElements == 1)  return MVT::v1i16;
         if (NumElements == 2)  return MVT::v2i16;
         if (NumElements == 4)  return MVT::v4i16;
         if (NumElements == 8)  return MVT::v8i16;
         if (NumElements == 16) return MVT::v16i16;
         if (NumElements == 32) return MVT::v32i16;
         break;
       case MVT::i32:
         if (NumElements == 1)  return MVT::v1i32;
         if (NumElements == 2)  return MVT::v2i32;
         if (NumElements == 4)  return MVT::v4i32;
         if (NumElements == 8)  return MVT::v8i32;
         if (NumElements == 16) return MVT::v16i32;
         break;
       case MVT::i64:
         if (NumElements == 1)  return MVT::v1i64;
         if (NumElements == 2)  return MVT::v2i64;
         if (NumElements == 4)  return MVT::v4i64;
         if (NumElements == 8)  return MVT::v8i64;
         if (NumElements == 16) return MVT::v16i64;
         break;
       case MVT::i128:
         if (NumElements == 1)  return MVT::v1i128;
         break;
       case MVT::f16:
         if (NumElements == 2)  return MVT::v2f16;
         if (NumElements == 4)  return MVT::v4f16;
         if (NumElements == 8)  return MVT::v8f16;
         break;
       case MVT::f32:
         if (NumElements == 1)  return MVT::v1f32;
         if (NumElements == 2)  return MVT::v2f32;
         if (NumElements == 4)  return MVT::v4f32;
         if (NumElements == 8)  return MVT::v8f32;
         if (NumElements == 16) return MVT::v16f32;
         break;
       case MVT::f64:
         if (NumElements == 1)  return MVT::v1f64;
         if (NumElements == 2)  return MVT::v2f64;
         if (NumElements == 4)  return MVT::v4f64;
         if (NumElements == 8)  return MVT::v8f64;
         break;
       }
       return (MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE);
     }

     /// Return the value type corresponding to the specified type.  This returns
     /// all pointers as iPTR.  If HandleUnknown is true, unknown types are
     /// returned as Other, otherwise they are invalid.
     static MVT getVT(Type *Ty, bool HandleUnknown = false);

   private:
     /// A simple iterator over the MVT::SimpleValueType enum.
     struct mvt_iterator {
       SimpleValueType VT;
       mvt_iterator(SimpleValueType VT) : VT(VT) {}
       MVT operator*() const { return VT; }
       bool operator!=(const mvt_iterator &LHS) const { return VT != LHS.VT; }
       mvt_iterator& operator++() {
         VT = (MVT::SimpleValueType)((int)VT + 1);
         assert((int)VT <= MVT::MAX_ALLOWED_VALUETYPE &&
                "MVT iterator overflowed.");
         return *this;
       }
     };
     /// A range of the MVT::SimpleValueType enum.
     typedef iterator_range<mvt_iterator> mvt_range;

   public:
     /// SimpleValueType Iteration
     /// @{
     static mvt_range all_valuetypes() {
       return mvt_range(MVT::FIRST_VALUETYPE, MVT::LAST_VALUETYPE);
     }
     static mvt_range integer_valuetypes() {
       return mvt_range(MVT::FIRST_INTEGER_VALUETYPE,
                        (MVT::SimpleValueType)(MVT::LAST_INTEGER_VALUETYPE + 1));
     }
     static mvt_range fp_valuetypes() {
       return mvt_range(MVT::FIRST_FP_VALUETYPE,
                        (MVT::SimpleValueType)(MVT::LAST_FP_VALUETYPE + 1));
     }
     static mvt_range vector_valuetypes() {
       return mvt_range(MVT::FIRST_VECTOR_VALUETYPE,
                        (MVT::SimpleValueType)(MVT::LAST_VECTOR_VALUETYPE + 1));
     }
     static mvt_range integer_vector_valuetypes() {
       return mvt_range(
           MVT::FIRST_INTEGER_VECTOR_VALUETYPE,
           (MVT::SimpleValueType)(MVT::LAST_INTEGER_VECTOR_VALUETYPE + 1));
     }
     static mvt_range fp_vector_valuetypes() {
       return mvt_range(
           MVT::FIRST_FP_VECTOR_VALUETYPE,
           (MVT::SimpleValueType)(MVT::LAST_FP_VECTOR_VALUETYPE + 1));
     }
     /// @}
   };

 } // End llvm namespace

 #endif
	//===- CodeGen/MachineValueType.h - Machine-Level types ---------- C++ --===//
	//
	// The LLVM Compiler Infrastructure
	//
	// This file is distributed under the University of Illinois Open Source
	// License. See LICENSE.TXT for details.
	//
	//===----------------------------------------------------------------------===//
	//
	// This file defines the set of machine-level target independent types which
	// legal values in the code generator use.
	//
	//===----------------------------------------------------------------------===//

	#ifndef LLVM_CODEGEN_MACHINEVALUETYPE_H
	#define LLVM_CODEGEN_MACHINEVALUETYPE_H

	#include "llvm/ADT/iterator_range.h"
	#include "llvm/Support/ErrorHandling.h"
	#include "llvm/Support/MathExtras.h"

	namespace llvm {

	class Type;

	/// MVT - Machine Value Type. Every type that is supported natively by some
	/// processor targeted by LLVM occurs here. This means that any legal value
	/// type can be represented by an MVT.
	class MVT {
	public:
	enum SimpleValueType {
	// INVALID_SIMPLE_VALUE_TYPE - Simple value types less than zero are
	// considered extended value types.
	INVALID_SIMPLE_VALUE_TYPE = -1,

	// If you change this numbering, you must change the values in
	// ValueTypes.td as well!
	Other = 0, // This is a non-standard value
	i1 = 1, // This is a 1 bit integer value
	i8 = 2, // This is an 8 bit integer value
	i16 = 3, // This is a 16 bit integer value
	i32 = 4, // This is a 32 bit integer value
	i64 = 5, // This is a 64 bit integer value
	i128 = 6, // This is a 128 bit integer value

	FIRST_INTEGER_VALUETYPE = i1,
	LAST_INTEGER_VALUETYPE = i128,

	f16 = 7, // This is a 16 bit floating point value
	f32 = 8, // This is a 32 bit floating point value
	f64 = 9, // This is a 64 bit floating point value
	f80 = 10, // This is a 80 bit floating point value
	f128 = 11, // This is a 128 bit floating point value
	ppcf128 = 12, // This is a PPC 128-bit floating point value

	FIRST_FP_VALUETYPE = f16,
	LAST_FP_VALUETYPE = ppcf128,

	v2i1 = 13, // 2 x i1
	v4i1 = 14, // 4 x i1
	v8i1 = 15, // 8 x i1
	v16i1 = 16, // 16 x i1
	v32i1 = 17, // 32 x i1
	v64i1 = 18, // 64 x i1

	v1i8 = 19, // 1 x i8
	v2i8 = 20, // 2 x i8
	v4i8 = 21, // 4 x i8
	v8i8 = 22, // 8 x i8
	v16i8 = 23, // 16 x i8
	v32i8 = 24, // 32 x i8
	v64i8 = 25, // 64 x i8
	v1i16 = 26, // 1 x i16
	v2i16 = 27, // 2 x i16
	v4i16 = 28, // 4 x i16
	v8i16 = 29, // 8 x i16
	v16i16 = 30, // 16 x i16
	v32i16 = 31, // 32 x i16
	v1i32 = 32, // 1 x i32
	v2i32 = 33, // 2 x i32
	v4i32 = 34, // 4 x i32
	v8i32 = 35, // 8 x i32
	v16i32 = 36, // 16 x i32
	v1i64 = 37, // 1 x i64
	v2i64 = 38, // 2 x i64
	v4i64 = 39, // 4 x i64
	v8i64 = 40, // 8 x i64
	v16i64 = 41, // 16 x i64
	v1i128 = 42, // 1 x i128

	FIRST_INTEGER_VECTOR_VALUETYPE = v2i1,
	LAST_INTEGER_VECTOR_VALUETYPE = v1i128,

	v2f16 = 43, // 2 x f16
	v4f16 = 44, // 4 x f16
	v8f16 = 45, // 8 x f16
	v1f32 = 46, // 1 x f32
	v2f32 = 47, // 2 x f32
	v4f32 = 48, // 4 x f32
	v8f32 = 49, // 8 x f32
	v16f32 = 50, // 16 x f32
	v1f64 = 51, // 1 x f64
	v2f64 = 52, // 2 x f64
	v4f64 = 53, // 4 x f64
	v8f64 = 54, // 8 x f64

	FIRST_FP_VECTOR_VALUETYPE = v2f16,
	LAST_FP_VECTOR_VALUETYPE = v8f64,

	FIRST_VECTOR_VALUETYPE = v2i1,
	LAST_VECTOR_VALUETYPE = v8f64,

	x86mmx = 55, // This is an X86 MMX value

	Glue = 56, // This glues nodes together during pre-RA sched

	isVoid = 57, // This has no value

	Untyped = 58, // This value takes a register, but has
	// unspecified type. The register class
	// will be determined by the opcode.

	FIRST_VALUETYPE = 0, // This is always the beginning of the list.
	LAST_VALUETYPE = 59, // This always remains at the end of the list.

	// This is the current maximum for LAST_VALUETYPE.
	// MVT::MAX_ALLOWED_VALUETYPE is used for asserts and to size bit vectors
	// This value must be a multiple of 32.
	MAX_ALLOWED_VALUETYPE = 64,

	// Metadata - This is MDNode or MDString.
	Metadata = 250,

	// iPTRAny - An int value the size of the pointer of the current
	// target to any address space. This must only be used internal to
	// tblgen. Other than for overloading, we treat iPTRAny the same as iPTR.
	iPTRAny = 251,

	// vAny - A vector with any length and element size. This is used
	// for intrinsics that have overloadings based on vector types.
	// This is only for tblgen's consumption!
	vAny = 252,

	// fAny - Any floating-point or vector floating-point value. This is used
	// for intrinsics that have overloadings based on floating-point types.
	// This is only for tblgen's consumption!
	fAny = 253,

	// iAny - An integer or vector integer value of any bit width. This is
	// used for intrinsics that have overloadings based on integer bit widths.
	// This is only for tblgen's consumption!
	iAny = 254,

	// iPTR - An int value the size of the pointer of the current
	// target. This should only be used internal to tblgen!
	iPTR = 255,

	// Any - Any type. This is used for intrinsics that have overloadings.
	// This is only for tblgen's consumption!
	Any = 256
	};

	SimpleValueType SimpleTy;

	LLVM_CONSTEXPR MVT() : SimpleTy(INVALID_SIMPLE_VALUE_TYPE) {}
	LLVM_CONSTEXPR MVT(SimpleValueType SVT) : SimpleTy(SVT) { }

	bool operator>(const MVT& S) const { return SimpleTy > S.SimpleTy; }
	bool operator<(const MVT& S) const { return SimpleTy < S.SimpleTy; }
	bool operator==(const MVT& S) const { return SimpleTy == S.SimpleTy; }
	bool operator!=(const MVT& S) const { return SimpleTy != S.SimpleTy; }
	bool operator>=(const MVT& S) const { return SimpleTy >= S.SimpleTy; }
	bool operator<=(const MVT& S) const { return SimpleTy <= S.SimpleTy; }

	/// isValid - Return true if this is a valid simple valuetype.
	bool isValid() const {
	return (SimpleTy >= MVT::FIRST_VALUETYPE &&
	SimpleTy < MVT::LAST_VALUETYPE);
	}

	/// isFloatingPoint - Return true if this is a FP, or a vector FP type.
	bool isFloatingPoint() const {
	return ((SimpleTy >= MVT::FIRST_FP_VALUETYPE &&
	SimpleTy <= MVT::LAST_FP_VALUETYPE) \|\|
	(SimpleTy >= MVT::FIRST_FP_VECTOR_VALUETYPE &&
	SimpleTy <= MVT::LAST_FP_VECTOR_VALUETYPE));
	}

	/// isInteger - Return true if this is an integer, or a vector integer type.
	bool isInteger() const {
	return ((SimpleTy >= MVT::FIRST_INTEGER_VALUETYPE &&
	SimpleTy <= MVT::LAST_INTEGER_VALUETYPE) \|\|
	(SimpleTy >= MVT::FIRST_INTEGER_VECTOR_VALUETYPE &&
	SimpleTy <= MVT::LAST_INTEGER_VECTOR_VALUETYPE));
	}

	/// isVector - Return true if this is a vector value type.
	bool isVector() const {
	return (SimpleTy >= MVT::FIRST_VECTOR_VALUETYPE &&
	SimpleTy <= MVT::LAST_VECTOR_VALUETYPE);
	}

	/// is16BitVector - Return true if this is a 16-bit vector type.
	bool is16BitVector() const {
	return (SimpleTy == MVT::v2i8 \|\| SimpleTy == MVT::v1i16 \|\|
	SimpleTy == MVT::v16i1);
	}

	/// is32BitVector - Return true if this is a 32-bit vector type.
	bool is32BitVector() const {
	return (SimpleTy == MVT::v4i8 \|\| SimpleTy == MVT::v2i16 \|\|
	SimpleTy == MVT::v1i32 \|\| SimpleTy == MVT::v2f16 \|\|
	SimpleTy == MVT::v1f32);
	}

	/// is64BitVector - Return true if this is a 64-bit vector type.
	bool is64BitVector() const {
	return (SimpleTy == MVT::v8i8 \|\| SimpleTy == MVT::v4i16 \|\|
	SimpleTy == MVT::v2i32 \|\| SimpleTy == MVT::v1i64 \|\|
	SimpleTy == MVT::v4f16 \|\| SimpleTy == MVT::v2f32 \|\|
	SimpleTy == MVT::v1f64);
	}

	/// is128BitVector - Return true if this is a 128-bit vector type.
	bool is128BitVector() const {
	return (SimpleTy == MVT::v16i8 \|\| SimpleTy == MVT::v8i16 \|\|
	SimpleTy == MVT::v4i32 \|\| SimpleTy == MVT::v2i64 \|\|
	SimpleTy == MVT::v1i128 \|\| SimpleTy == MVT::v8f16 \|\|
	SimpleTy == MVT::v4f32 \|\| SimpleTy == MVT::v2f64);
	}

	/// is256BitVector - Return true if this is a 256-bit vector type.
	bool is256BitVector() const {
	return (SimpleTy == MVT::v8f32 \|\| SimpleTy == MVT::v4f64 \|\|
	SimpleTy == MVT::v32i8 \|\| SimpleTy == MVT::v16i16 \|\|
	SimpleTy == MVT::v8i32 \|\| SimpleTy == MVT::v4i64);
	}

	/// is512BitVector - Return true if this is a 512-bit vector type.
	bool is512BitVector() const {
	return (SimpleTy == MVT::v8f64 \|\| SimpleTy == MVT::v16f32 \|\|
	SimpleTy == MVT::v64i8 \|\| SimpleTy == MVT::v32i16 \|\|
	SimpleTy == MVT::v8i64 \|\| SimpleTy == MVT::v16i32);
	}

	/// is1024BitVector - Return true if this is a 1024-bit vector type.
	bool is1024BitVector() const {
	return (SimpleTy == MVT::v16i64);
	}

	/// isOverloaded - Return true if this is an overloaded type for TableGen.
	bool isOverloaded() const {
	return (SimpleTy==MVT::Any \|\|
	SimpleTy==MVT::iAny \|\| SimpleTy==MVT::fAny \|\|
	SimpleTy==MVT::vAny \|\| SimpleTy==MVT::iPTRAny);
	}

	/// isPow2VectorType - Returns true if the given vector is a power of 2.
	bool isPow2VectorType() const {
	unsigned NElts = getVectorNumElements();
	return !(NElts & (NElts - 1));
	}

	/// getPow2VectorType - Widens the length of the given vector MVT up to
	/// the nearest power of 2 and returns that type.
	MVT getPow2VectorType() const {
	if (isPow2VectorType())
	return *this;

	unsigned NElts = getVectorNumElements();
	unsigned Pow2NElts = 1 << Log2_32_Ceil(NElts);
	return MVT::getVectorVT(getVectorElementType(), Pow2NElts);
	}

	/// getScalarType - If this is a vector type, return the element type,
	/// otherwise return this.
	MVT getScalarType() const {
	return isVector() ? getVectorElementType() : *this;
	}

	MVT getVectorElementType() const {
	switch (SimpleTy) {
	default:
	llvm_unreachable("Not a vector MVT!");
	case v2i1 :
	case v4i1 :
	case v8i1 :
	case v16i1 :
	case v32i1 :
	case v64i1: return i1;
	case v1i8 :
	case v2i8 :
	case v4i8 :
	case v8i8 :
	case v16i8:
	case v32i8:
	case v64i8: return i8;
	case v1i16:
	case v2i16:
	case v4i16:
	case v8i16:
	case v16i16:
	case v32i16: return i16;
	case v1i32:
	case v2i32:
	case v4i32:
	case v8i32:
	case v16i32: return i32;
	case v1i64:
	case v2i64:
	case v4i64:
	case v8i64:
	case v16i64: return i64;
	case v1i128: return i128;
	case v2f16:
	case v4f16:
	case v8f16: return f16;
	case v1f32:
	case v2f32:
	case v4f32:
	case v8f32:
	case v16f32: return f32;
	case v1f64:
	case v2f64:
	case v4f64:
	case v8f64: return f64;
	}
	}

	unsigned getVectorNumElements() const {
	switch (SimpleTy) {
	default:
	llvm_unreachable("Not a vector MVT!");
	case v32i1:
	case v32i8:
	case v32i16: return 32;
	case v64i1:
	case v64i8: return 64;
	case v16i1:
	case v16i8:
	case v16i16:
	case v16i32:
	case v16i64:
	case v16f32: return 16;
	case v8i1 :
	case v8i8 :
	case v8i16:
	case v8i32:
	case v8i64:
	case v8f16:
	case v8f32:
	case v8f64: return 8;
	case v4i1:
	case v4i8:
	case v4i16:
	case v4i32:
	case v4i64:
	case v4f16:
	case v4f32:
	case v4f64: return 4;
	case v2i1:
	case v2i8:
	case v2i16:
	case v2i32:
	case v2i64:
	case v2f16:
	case v2f32:
	case v2f64: return 2;
	case v1i8:
	case v1i16:
	case v1i32:
	case v1i64:
	case v1i128:
	case v1f32:
	case v1f64: return 1;
	}
	}

	unsigned getSizeInBits() const {
	switch (SimpleTy) {
	default:
	llvm_unreachable("getSizeInBits called on extended MVT.");
	case Other:
	llvm_unreachable("Value type is non-standard value, Other.");
	case iPTR:
	llvm_unreachable("Value type size is target-dependent. Ask TLI.");
	case iPTRAny:
	case iAny:
	case fAny:
	case vAny:
	case Any:
	llvm_unreachable("Value type is overloaded.");
	case Metadata:
	llvm_unreachable("Value type is metadata.");
	case i1 : return 1;
	case v2i1: return 2;
	case v4i1: return 4;
	case i8 :
	case v1i8:
	case v8i1: return 8;
	case i16 :
	case f16:
	case v16i1:
	case v2i8:
	case v1i16: return 16;
	case f32 :
	case i32 :
	case v32i1:
	case v4i8:
	case v2i16:
	case v2f16:
	case v1f32:
	case v1i32: return 32;
	case x86mmx:
	case f64 :
	case i64 :
	case v64i1:
	case v8i8:
	case v4i16:
	case v2i32:
	case v1i64:
	case v4f16:
	case v2f32:
	case v1f64: return 64;
	case f80 : return 80;
	case f128:
	case ppcf128:
	case i128:
	case v16i8:
	case v8i16:
	case v4i32:
	case v2i64:
	case v1i128:
	case v8f16:
	case v4f32:
	case v2f64: return 128;
	case v32i8:
	case v16i16:
	case v8i32:
	case v4i64:
	case v8f32:
	case v4f64: return 256;
	case v64i8:
	case v32i16:
	case v16i32:
	case v8i64:
	case v16f32:
	case v8f64: return 512;
	case v16i64:return 1024;
	}
	}

	unsigned getScalarSizeInBits() const {
	return getScalarType().getSizeInBits();
	}

	/// getStoreSize - Return the number of bytes overwritten by a store
	/// of the specified value type.
	unsigned getStoreSize() const {
	return (getSizeInBits() + 7) / 8;
	}

	/// getStoreSizeInBits - Return the number of bits overwritten by a store
	/// of the specified value type.
	unsigned getStoreSizeInBits() const {
	return getStoreSize() * 8;
	}

	/// Return true if this has more bits than VT.
	bool bitsGT(MVT VT) const {
	return getSizeInBits() > VT.getSizeInBits();
	}

	/// Return true if this has no less bits than VT.
	bool bitsGE(MVT VT) const {
	return getSizeInBits() >= VT.getSizeInBits();
	}

	/// Return true if this has less bits than VT.
	bool bitsLT(MVT VT) const {
	return getSizeInBits() < VT.getSizeInBits();
	}

	/// Return true if this has no more bits than VT.
	bool bitsLE(MVT VT) const {
	return getSizeInBits() <= VT.getSizeInBits();
	}


	static MVT getFloatingPointVT(unsigned BitWidth) {
	switch (BitWidth) {
	default:
	llvm_unreachable("Bad bit width!");
	case 16:
	return MVT::f16;
	case 32:
	return MVT::f32;
	case 64:
	return MVT::f64;
	case 80:
	return MVT::f80;
	case 128:
	return MVT::f128;
	}
	}

	static MVT getIntegerVT(unsigned BitWidth) {
	switch (BitWidth) {
	default:
	return (MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE);
	case 1:
	return MVT::i1;
	case 8:
	return MVT::i8;
	case 16:
	return MVT::i16;
	case 32:
	return MVT::i32;
	case 64:
	return MVT::i64;
	case 128:
	return MVT::i128;
	}
	}

	static MVT getVectorVT(MVT VT, unsigned NumElements) {
	switch (VT.SimpleTy) {
	default:
	break;
	case MVT::i1:
	if (NumElements == 2) return MVT::v2i1;
	if (NumElements == 4) return MVT::v4i1;
	if (NumElements == 8) return MVT::v8i1;
	if (NumElements == 16) return MVT::v16i1;
	if (NumElements == 32) return MVT::v32i1;
	if (NumElements == 64) return MVT::v64i1;
	break;
	case MVT::i8:
	if (NumElements == 1) return MVT::v1i8;
	if (NumElements == 2) return MVT::v2i8;
	if (NumElements == 4) return MVT::v4i8;
	if (NumElements == 8) return MVT::v8i8;
	if (NumElements == 16) return MVT::v16i8;
	if (NumElements == 32) return MVT::v32i8;
	if (NumElements == 64) return MVT::v64i8;
	break;
	case MVT::i16:
	if (NumElements == 1) return MVT::v1i16;
	if (NumElements == 2) return MVT::v2i16;
	if (NumElements == 4) return MVT::v4i16;
	if (NumElements == 8) return MVT::v8i16;
	if (NumElements == 16) return MVT::v16i16;
	if (NumElements == 32) return MVT::v32i16;
	break;
	case MVT::i32:
	if (NumElements == 1) return MVT::v1i32;
	if (NumElements == 2) return MVT::v2i32;
	if (NumElements == 4) return MVT::v4i32;
	if (NumElements == 8) return MVT::v8i32;
	if (NumElements == 16) return MVT::v16i32;
	break;
	case MVT::i64:
	if (NumElements == 1) return MVT::v1i64;
	if (NumElements == 2) return MVT::v2i64;
	if (NumElements == 4) return MVT::v4i64;
	if (NumElements == 8) return MVT::v8i64;
	if (NumElements == 16) return MVT::v16i64;
	break;
	case MVT::i128:
	if (NumElements == 1) return MVT::v1i128;
	break;
	case MVT::f16:
	if (NumElements == 2) return MVT::v2f16;
	if (NumElements == 4) return MVT::v4f16;
	if (NumElements == 8) return MVT::v8f16;
	break;
	case MVT::f32:
	if (NumElements == 1) return MVT::v1f32;
	if (NumElements == 2) return MVT::v2f32;
	if (NumElements == 4) return MVT::v4f32;
	if (NumElements == 8) return MVT::v8f32;
	if (NumElements == 16) return MVT::v16f32;
	break;
	case MVT::f64:
	if (NumElements == 1) return MVT::v1f64;
	if (NumElements == 2) return MVT::v2f64;
	if (NumElements == 4) return MVT::v4f64;
	if (NumElements == 8) return MVT::v8f64;
	break;
	}
	return (MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE);
	}

	/// Return the value type corresponding to the specified type. This returns
	/// all pointers as iPTR. If HandleUnknown is true, unknown types are
	/// returned as Other, otherwise they are invalid.
	static MVT getVT(Type *Ty, bool HandleUnknown = false);

	private:
	/// A simple iterator over the MVT::SimpleValueType enum.
	struct mvt_iterator {
	SimpleValueType VT;
	mvt_iterator(SimpleValueType VT) : VT(VT) {}
	MVT operator*() const { return VT; }
	bool operator!=(const mvt_iterator &LHS) const { return VT != LHS.VT; }
	mvt_iterator& operator++() {
	VT = (MVT::SimpleValueType)((int)VT + 1);
	assert((int)VT <= MVT::MAX_ALLOWED_VALUETYPE &&
	"MVT iterator overflowed.");
	return *this;
	}
	};
	/// A range of the MVT::SimpleValueType enum.
	typedef iterator_range<mvt_iterator> mvt_range;

	public:
	/// SimpleValueType Iteration
	/// @{
	static mvt_range all_valuetypes() {
	return mvt_range(MVT::FIRST_VALUETYPE, MVT::LAST_VALUETYPE);
	}
	static mvt_range integer_valuetypes() {
	return mvt_range(MVT::FIRST_INTEGER_VALUETYPE,
	(MVT::SimpleValueType)(MVT::LAST_INTEGER_VALUETYPE + 1));
	}
	static mvt_range fp_valuetypes() {
	return mvt_range(MVT::FIRST_FP_VALUETYPE,
	(MVT::SimpleValueType)(MVT::LAST_FP_VALUETYPE + 1));
	}
	static mvt_range vector_valuetypes() {
	return mvt_range(MVT::FIRST_VECTOR_VALUETYPE,
	(MVT::SimpleValueType)(MVT::LAST_VECTOR_VALUETYPE + 1));
	}
	static mvt_range integer_vector_valuetypes() {
	return mvt_range(
	MVT::FIRST_INTEGER_VECTOR_VALUETYPE,
	(MVT::SimpleValueType)(MVT::LAST_INTEGER_VECTOR_VALUETYPE + 1));
	}
	static mvt_range fp_vector_valuetypes() {
	return mvt_range(
	MVT::FIRST_FP_VECTOR_VALUETYPE,
	(MVT::SimpleValueType)(MVT::LAST_FP_VECTOR_VALUETYPE + 1));
	}
	/// @}
	};

	} // End llvm namespace

	#endif