HexagonMCTargetDesc.cpp revision d239ff67f210094c205be7e57332948caecf6a24 
1//===-- HexagonMCTargetDesc.cpp - Cell Hexagon 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 Cell Hexagon specific target descriptions.
11//
12//===----------------------------------------------------------------------===//
13
14#include "HexagonMCTargetDesc.h"
15#include "HexagonMCAsmInfo.h"
16#include "llvm/MC/MachineLocation.h"
17#include "llvm/MC/MCCodeGenInfo.h"
18#include "llvm/MC/MCInstrInfo.h"
19#include "llvm/MC/MCRegisterInfo.h"
20#include "llvm/MC/MCSubtargetInfo.h"
21#include "llvm/Support/TargetRegistry.h"
22
23#define GET_INSTRINFO_MC_DESC
24#include "HexagonGenInstrInfo.inc"
25
26#define GET_SUBTARGETINFO_MC_DESC
27#include "HexagonGenSubtargetInfo.inc"
28
29#define GET_REGINFO_MC_DESC
30#include "HexagonGenRegisterInfo.inc"
31
32using namespace llvm;
33
34static MCInstrInfo *createHexagonMCInstrInfo() {
35  MCInstrInfo *X = new MCInstrInfo();
36  InitHexagonMCInstrInfo(X);
37  return X;
38}
39
40static MCRegisterInfo *createHexagonMCRegisterInfo(StringRef TT) {
41  MCRegisterInfo *X = new MCRegisterInfo();
42  InitHexagonMCRegisterInfo(X, Hexagon::R0);
43  return X;
44}
45
46static MCSubtargetInfo *createHexagonMCSubtargetInfo(StringRef TT,
47                                                     StringRef CPU,
48                                                     StringRef FS) {
49  MCSubtargetInfo *X = new MCSubtargetInfo();
50  InitHexagonMCSubtargetInfo(X, TT, CPU, FS);
51  return X;
52}
53
54static MCAsmInfo *createHexagonMCAsmInfo(const Target &T, StringRef TT) {
55  MCAsmInfo *MAI = new HexagonMCAsmInfo(T, TT);
56
57  // VirtualFP = (R30 + #0).
58  MachineLocation Dst(MachineLocation::VirtualFP);
59  MachineLocation Src(Hexagon::R30, 0);
60  MAI->addInitialFrameState(0, Dst, Src);
61
62  return MAI;
63}
64
65static MCCodeGenInfo *createHexagonMCCodeGenInfo(StringRef TT, Reloc::Model RM,
66                                             CodeModel::Model CM,
67                                             CodeGenOpt::Level OL) {
68  MCCodeGenInfo *X = new MCCodeGenInfo();
69  // For the time being, use static relocations, since there's really no
70  // support for PIC yet.
71  X->InitMCCodeGenInfo(Reloc::Static, CM, OL);
72  return X;
73}
74
75// Force static initialization.
76extern "C" void LLVMInitializeHexagonTargetMC() {
77  // Register the MC asm info.
78  RegisterMCAsmInfoFn X(TheHexagonTarget, createHexagonMCAsmInfo);
79
80  // Register the MC codegen info.
81  TargetRegistry::RegisterMCCodeGenInfo(TheHexagonTarget,
82                                        createHexagonMCCodeGenInfo);
83
84  // Register the MC instruction info.
85  TargetRegistry::RegisterMCInstrInfo(TheHexagonTarget, createHexagonMCInstrInfo);
86
87  // Register the MC register info.
88  TargetRegistry::RegisterMCRegInfo(TheHexagonTarget,
89                                    createHexagonMCRegisterInfo);
90
91  // Register the MC subtarget info.
92  TargetRegistry::RegisterMCSubtargetInfo(TheHexagonTarget,
93                                          createHexagonMCSubtargetInfo);
94}
95