HexagonMCTargetDesc.cpp revision 6e53180db120b30f600ac31611a9dd47ef7f4921 
1//===-- HexagonMCTargetDesc.cpp - Hexagon Target Descriptions -------------===//
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 Hexagon specific target descriptions.
11//
12//===----------------------------------------------------------------------===//
13
14#include "HexagonMCTargetDesc.h"
15#include "HexagonMCAsmInfo.h"
16#include "InstPrinter/HexagonInstPrinter.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/MCStreamer.h"
22#include "llvm/MC/MCSubtargetInfo.h"
23#include "llvm/Support/ErrorHandling.h"
24#include "llvm/Support/TargetRegistry.h"
25
26#define GET_INSTRINFO_MC_DESC
27#include "HexagonGenInstrInfo.inc"
28
29#define GET_SUBTARGETINFO_MC_DESC
30#include "HexagonGenSubtargetInfo.inc"
31
32#define GET_REGINFO_MC_DESC
33#include "HexagonGenRegisterInfo.inc"
34
35using namespace llvm;
36
37static MCInstrInfo *createHexagonMCInstrInfo() {
38  MCInstrInfo *X = new MCInstrInfo();
39  InitHexagonMCInstrInfo(X);
40  return X;
41}
42
43static MCRegisterInfo *createHexagonMCRegisterInfo(StringRef TT) {
44  MCRegisterInfo *X = new MCRegisterInfo();
45  InitHexagonMCRegisterInfo(X, Hexagon::R0);
46  return X;
47}
48
49static MCSubtargetInfo *createHexagonMCSubtargetInfo(StringRef TT,
50                                                     StringRef CPU,
51                                                     StringRef FS) {
52  MCSubtargetInfo *X = new MCSubtargetInfo();
53  InitHexagonMCSubtargetInfo(X, TT, CPU, FS);
54  return X;
55}
56
57static MCAsmInfo *createHexagonMCAsmInfo(StringRef TT) {
58  MCAsmInfo *MAI = new HexagonMCAsmInfo(TT);
59
60  // VirtualFP = (R30 + #0).
61  MachineLocation Dst(MachineLocation::VirtualFP);
62  MachineLocation Src(Hexagon::R30, 0);
63  MAI->addInitialFrameState(0, Dst, Src);
64
65  return MAI;
66}
67
68static MCCodeGenInfo *createHexagonMCCodeGenInfo(StringRef TT, Reloc::Model RM,
69                                             CodeModel::Model CM,
70                                             CodeGenOpt::Level OL) {
71  MCCodeGenInfo *X = new MCCodeGenInfo();
72  // For the time being, use static relocations, since there's really no
73  // support for PIC yet.
74  X->InitMCCodeGenInfo(Reloc::Static, CM, OL);
75  return X;
76}
77
78// Force static initialization.
79extern "C" void LLVMInitializeHexagonTargetMC() {
80  // Register the MC asm info.
81  RegisterMCAsmInfoFn X(TheHexagonTarget, createHexagonMCAsmInfo);
82
83  // Register the MC codegen info.
84  TargetRegistry::RegisterMCCodeGenInfo(TheHexagonTarget,
85                                        createHexagonMCCodeGenInfo);
86
87  // Register the MC instruction info.
88  TargetRegistry::RegisterMCInstrInfo(TheHexagonTarget, createHexagonMCInstrInfo);
89
90  // Register the MC register info.
91  TargetRegistry::RegisterMCRegInfo(TheHexagonTarget,
92                                    createHexagonMCRegisterInfo);
93
94  // Register the MC subtarget info.
95  TargetRegistry::RegisterMCSubtargetInfo(TheHexagonTarget,
96                                          createHexagonMCSubtargetInfo);
97}
98