text: //=-- Hexagon.h - Top-level interface for Hexagon representation --*- C++ -*-=//
  //
  //                     The LLVM Compiler Infrastructure
  //
  // This file is distributed under the University of Illinois Open Source
  // License. See LICENSE.TXT for details.
  //
  //===----------------------------------------------------------------------===//
  //
  // This file contains the entry points for global functions defined in the LLVM
  // Hexagon back-end.
  //
  //===----------------------------------------------------------------------===//
  
  #ifndef LLVM_LIB_TARGET_HEXAGON_HEXAGON_H
  #define LLVM_LIB_TARGET_HEXAGON_HEXAGON_H
  
  #define Hexagon_POINTER_SIZE 4
  
  #define Hexagon_PointerSize (Hexagon_POINTER_SIZE)
  #define Hexagon_PointerSize_Bits (Hexagon_POINTER_SIZE * 8)
  #define Hexagon_WordSize Hexagon_PointerSize
  #define Hexagon_WordSize_Bits Hexagon_PointerSize_Bits
  
  // allocframe saves LR and FP on stack before allocating
  // a new stack frame. This takes 8 bytes.
  #define HEXAGON_LRFP_SIZE 8
  
  // Normal instruction size (in bytes).
  #define HEXAGON_INSTR_SIZE 4
  
  // Maximum number of words and instructions in a packet.
  #define HEXAGON_PACKET_SIZE 4
  #define HEXAGON_MAX_PACKET_SIZE (HEXAGON_PACKET_SIZE * HEXAGON_INSTR_SIZE)
  // Minimum number of instructions in an end-loop packet.
  #define HEXAGON_PACKET_INNER_SIZE 2
  #define HEXAGON_PACKET_OUTER_SIZE 3
  // Maximum number of instructions in a packet before shuffling,
  // including a compound one or a duplex or an extender.
  #define HEXAGON_PRESHUFFLE_PACKET_SIZE (HEXAGON_PACKET_SIZE + 3)
  
  // Name of the global offset table as defined by the Hexagon ABI
  #define HEXAGON_GOT_SYM_NAME "_GLOBAL_OFFSET_TABLE_"
  
  #include "MCTargetDesc/HexagonMCTargetDesc.h"
  #include "llvm/CodeGen/TargetLowering.h"
  #include "llvm/Target/TargetMachine.h"
  
  namespace llvm {
    class HexagonTargetMachine;
  
    /// \brief Creates a Hexagon-specific Target Transformation Info pass.
    ImmutablePass *createHexagonTargetTransformInfoPass(const HexagonTargetMachine *TM);
  } // end namespace llvm;
  
  #endif
  