1//=-- Hexagon.h - Top-level interface for Hexagon representation --*- C++ -*-=//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file contains the entry points for global functions defined in the LLVM
11// Hexagon back-end.
12//
13//===----------------------------------------------------------------------===//
14
15#ifndef TARGET_Hexagon_H
16#define TARGET_Hexagon_H
17
18#include "MCTargetDesc/HexagonMCTargetDesc.h"
19#include "llvm/Target/TargetLowering.h"
20#include "llvm/Target/TargetMachine.h"
21
22namespace llvm {
23  class FunctionPass;
24  class ModulePass;
25  class TargetMachine;
26  class MachineInstr;
27  class HexagonMCInst;
28  class HexagonAsmPrinter;
29  class HexagonTargetMachine;
30  class raw_ostream;
31
32  FunctionPass *createHexagonISelDag(HexagonTargetMachine &TM,
33                                     CodeGenOpt::Level OptLevel);
34  FunctionPass *createHexagonDelaySlotFillerPass(TargetMachine &TM);
35  FunctionPass *createHexagonFPMoverPass(TargetMachine &TM);
36  FunctionPass *createHexagonRemoveExtendOps(HexagonTargetMachine &TM);
37  FunctionPass *createHexagonCFGOptimizer(HexagonTargetMachine &TM);
38
39  FunctionPass *createHexagonSplitTFRCondSets(HexagonTargetMachine &TM);
40  FunctionPass *createHexagonExpandPredSpillCode(HexagonTargetMachine &TM);
41
42  FunctionPass *createHexagonHardwareLoops();
43  FunctionPass *createHexagonPeephole();
44  FunctionPass *createHexagonFixupHwLoops();
45  FunctionPass *createHexagonPacketizer();
46  FunctionPass *createHexagonNewValueJump();
47
48
49/* TODO: object output.
50  MCCodeEmitter *createHexagonMCCodeEmitter(const Target &,
51                                            TargetMachine &TM,
52                                            MCContext &Ctx);
53*/
54/* TODO: assembler input.
55  TargetAsmBackend *createHexagonAsmBackend(const Target &,
56                                                  const std::string &);
57*/
58  void HexagonLowerToMC(const MachineInstr *MI, HexagonMCInst &MCI,
59                        HexagonAsmPrinter &AP);
60} // end namespace llvm;
61
62#define Hexagon_POINTER_SIZE 4
63
64#define Hexagon_PointerSize (Hexagon_POINTER_SIZE)
65#define Hexagon_PointerSize_Bits (Hexagon_POINTER_SIZE * 8)
66#define Hexagon_WordSize Hexagon_PointerSize
67#define Hexagon_WordSize_Bits Hexagon_PointerSize_Bits
68
69// allocframe saves LR and FP on stack before allocating
70// a new stack frame. This takes 8 bytes.
71#define HEXAGON_LRFP_SIZE 8
72
73// Normal instruction size (in bytes).
74#define HEXAGON_INSTR_SIZE 4
75
76// Maximum number of words and instructions in a packet.
77#define HEXAGON_PACKET_SIZE 4
78
79#endif
80