MipsMCTargetDesc.cpp revision 3e74d6fdd248e20a280f1dff3da9a6c689c2c4c3 
1//===-- MipsMCTargetDesc.cpp - Mips Target Descriptions ---------*- 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 provides Mips specific target descriptions.
11//
12//===----------------------------------------------------------------------===//
13
14#include "MipsMCTargetDesc.h"
15#include "MipsMCAsmInfo.h"
16#include "InstPrinter/MipsInstPrinter.h"
17#include "llvm/MC/MachineLocation.h"
18#include "llvm/MC/MCCodeGenInfo.h"
19#include "llvm/MC/MCInstrInfo.h"
20#include "llvm/MC/MCRegisterInfo.h"
21#include "llvm/MC/MCSubtargetInfo.h"
22#include "llvm/Support/TargetRegistry.h"
23
24#define GET_INSTRINFO_MC_DESC
25#include "MipsGenInstrInfo.inc"
26
27#define GET_SUBTARGETINFO_MC_DESC
28#include "MipsGenSubtargetInfo.inc"
29
30#define GET_REGINFO_MC_DESC
31#include "MipsGenRegisterInfo.inc"
32
33using namespace llvm;
34
35static MCInstrInfo *createMipsMCInstrInfo() {
36  MCInstrInfo *X = new MCInstrInfo();
37  InitMipsMCInstrInfo(X);
38  return X;
39}
40
41static MCRegisterInfo *createMipsMCRegisterInfo(StringRef TT) {
42  MCRegisterInfo *X = new MCRegisterInfo();
43  InitMipsMCRegisterInfo(X, Mips::RA);
44  return X;
45}
46
47static MCSubtargetInfo *createMipsMCSubtargetInfo(StringRef TT, StringRef CPU,
48                                                  StringRef FS) {
49  MCSubtargetInfo *X = new MCSubtargetInfo();
50  InitMipsMCSubtargetInfo(X, TT, CPU, FS);
51  return X;
52}
53
54static MCAsmInfo *createMipsMCAsmInfo(const Target &T, StringRef TT) {
55  MCAsmInfo *MAI = new MipsMCAsmInfo(T, TT);
56
57  MachineLocation Dst(MachineLocation::VirtualFP);
58  MachineLocation Src(Mips::SP, 0);
59  MAI->addInitialFrameState(0, Dst, Src);
60
61  return MAI;
62}
63
64static MCCodeGenInfo *createMipsMCCodeGenInfo(StringRef TT, Reloc::Model RM,
65                                              CodeModel::Model CM) {
66  MCCodeGenInfo *X = new MCCodeGenInfo();
67  if (RM == Reloc::Default) {
68    // Abicall enables PIC by default
69    if (TT.find("mipsallegrex") != std::string::npos ||
70        TT.find("psp") != std::string::npos)
71      RM = Reloc::Static;
72    else
73      RM = Reloc::PIC_;
74  }
75  X->InitMCCodeGenInfo(RM, CM);
76  return X;
77}
78
79static MCInstPrinter *createMipsMCInstPrinter(const Target &T,
80                                              unsigned SyntaxVariant,
81                                              const MCAsmInfo &MAI) {
82  return new MipsInstPrinter(MAI);
83}
84
85extern "C" void LLVMInitializeMipsTargetMC() {
86  // Register the MC asm info.
87  RegisterMCAsmInfoFn X(TheMipsTarget, createMipsMCAsmInfo);
88  RegisterMCAsmInfoFn Y(TheMipselTarget, createMipsMCAsmInfo);
89
90  // Register the MC codegen info.
91  TargetRegistry::RegisterMCCodeGenInfo(TheMipsTarget,
92                                        createMipsMCCodeGenInfo);
93  TargetRegistry::RegisterMCCodeGenInfo(TheMipselTarget,
94                                        createMipsMCCodeGenInfo);
95
96  // Register the MC instruction info.
97  TargetRegistry::RegisterMCInstrInfo(TheMipsTarget, createMipsMCInstrInfo);
98
99  // Register the MC register info.
100  TargetRegistry::RegisterMCRegInfo(TheMipsTarget, createMipsMCRegisterInfo);
101  TargetRegistry::RegisterMCRegInfo(TheMipselTarget, createMipsMCRegisterInfo);
102
103  // Register the MC subtarget info.
104  TargetRegistry::RegisterMCSubtargetInfo(TheMipsTarget,
105                                          createMipsMCSubtargetInfo);
106
107  // Register the MCInstPrinter.
108  TargetRegistry::RegisterMCInstPrinter(TheMipsTarget,
109                                        createMipsMCInstPrinter);
110  TargetRegistry::RegisterMCInstPrinter(TheMipselTarget,
111                                        createMipsMCInstPrinter);
112}
113