path: root/include/llvm/CodeGen/ValueTypes.h

//===- CodeGen/ValueTypes.h - Low-Level Target independ. 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 low-level target independent types which various
// values in the code generator are.  This allows the target specific behavior
// of instructions to be described to target independent passes.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CODEGEN_VALUETYPES_H
#define LLVM_CODEGEN_VALUETYPES_H

#include "llvm/Support/DataTypes.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
#include <cassert>
#include <string>

namespace llvm {
  class Type;
  class LLVMContext;
  struct EVT;

  /// 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 a 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

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

      FIRST_INTEGER_VECTOR_VALUETYPE = v2i1,
      LAST_INTEGER_VECTOR_VALUETYPE = v16i64,

      v2f16          =  41,   //  2 x f16
      v2f32          =  42,   //  2 x f32
      v4f32          =  43,   //  4 x f32
      v8f32          =  44,   //  8 x f32
      v16f32         =  45,   // 16 x f32
      v2f64          =  46,   //  2 x f64
      v4f64          =  47,   //  4 x f64
      v8f64          =  48,   //  8 x f64

      FIRST_FP_VECTOR_VALUETYPE = v2f16,
      LAST_FP_VECTOR_VALUETYPE = v8f64,

      FIRST_VECTOR_VALUETYPE = v2i1,
      LAST_VECTOR_VALUETYPE  = v8f64,

      x86mmx         =  49,   // This is an X86 MMX value

      Glue           =  50,   // This glues nodes together during pre-RA sched

      isVoid         =  51,   // This has no value

      Untyped        =  52,   // This value takes a register, but has
                              // unspecified type.  The register class
                              // will be determined by the opcode.

      LAST_VALUETYPE =  53,   // 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
    };

    SimpleValueType SimpleTy;

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