PPCMCTargetDesc.cpp revision 439661395fd2a2a832dba01c65bc88718528313c 
1//===-- PPCMCTargetDesc.cpp - PowerPC 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 PowerPC specific target descriptions.
11//
12//===----------------------------------------------------------------------===//
13
14#include "PPCMCTargetDesc.h"
15#include "PPCMCAsmInfo.h"
16#include "llvm/MC/MachineLocation.h"
17#include "llvm/MC/MCInstrInfo.h"
18#include "llvm/MC/MCRegisterInfo.h"
19#include "llvm/MC/MCSubtargetInfo.h"
20#include "llvm/Target/TargetRegistry.h"
21
22#define GET_INSTRINFO_MC_DESC
23#include "PPCGenInstrInfo.inc"
24
25#define GET_SUBTARGETINFO_MC_DESC
26#include "PPCGenSubtargetInfo.inc"
27
28#define GET_REGINFO_MC_DESC
29#include "PPCGenRegisterInfo.inc"
30
31using namespace llvm;
32
33static MCInstrInfo *createPPCMCInstrInfo() {
34  MCInstrInfo *X = new MCInstrInfo();
35  InitPPCMCInstrInfo(X);
36  return X;
37}
38
39extern "C" void LLVMInitializePowerPCMCInstrInfo() {
40  TargetRegistry::RegisterMCInstrInfo(ThePPC32Target, createPPCMCInstrInfo);
41  TargetRegistry::RegisterMCInstrInfo(ThePPC64Target, createPPCMCInstrInfo);
42}
43
44static MCRegisterInfo *createPPCMCRegisterInfo(StringRef TT) {
45  Triple TheTriple(TT);
46  bool isPPC64 = (TheTriple.getArch() == Triple::ppc64);
47  unsigned Flavour = isPPC64 ? 0 : 1;
48  unsigned RA = isPPC64 ? PPC::LR8 : PPC::LR;
49
50  MCRegisterInfo *X = new MCRegisterInfo();
51  InitPPCMCRegisterInfo(X, RA, Flavour, Flavour);
52  return X;
53}
54
55extern "C" void LLVMInitializePowerPCMCRegisterInfo() {
56  TargetRegistry::RegisterMCRegInfo(ThePPC32Target, createPPCMCRegisterInfo);
57  TargetRegistry::RegisterMCRegInfo(ThePPC64Target, createPPCMCRegisterInfo);
58}
59
60static MCSubtargetInfo *createPPCMCSubtargetInfo(StringRef TT, StringRef CPU,
61                                                 StringRef FS) {
62  MCSubtargetInfo *X = new MCSubtargetInfo();
63  InitPPCMCSubtargetInfo(X, TT, CPU, FS);
64  return X;
65}
66
67extern "C" void LLVMInitializePowerPCMCSubtargetInfo() {
68  TargetRegistry::RegisterMCSubtargetInfo(ThePPC32Target,
69                                          createPPCMCSubtargetInfo);
70  TargetRegistry::RegisterMCSubtargetInfo(ThePPC64Target,
71                                          createPPCMCSubtargetInfo);
72}
73
74static MCAsmInfo *createPPCMCAsmInfo(const Target &T, StringRef TT) {
75  Triple TheTriple(TT);
76  bool isPPC64 = TheTriple.getArch() == Triple::ppc64;
77
78  MCAsmInfo *MAI;
79  if (TheTriple.isOSDarwin())
80    MAI = new PPCMCAsmInfoDarwin(isPPC64);
81  else
82    MAI = new PPCLinuxMCAsmInfo(isPPC64);
83
84  // Initial state of the frame pointer is R1.
85  MachineLocation Dst(MachineLocation::VirtualFP);
86  MachineLocation Src(PPC::R1, 0);
87  MAI->addInitialFrameState(0, Dst, Src);
88
89  return MAI;
90}
91
92extern "C" void LLVMInitializePowerPCMCAsmInfo() {
93  RegisterMCAsmInfoFn C(ThePPC32Target, createPPCMCAsmInfo);
94  RegisterMCAsmInfoFn D(ThePPC64Target, createPPCMCAsmInfo);
95}
96
97MCCodeGenInfo *createPPCMCCodeGenInfo(StringRef TT, Reloc::Model RM) {
98  MCCodeGenInfo *X = new MCCodeGenInfo();
99
100  if (RM == Reloc::Default) {
101    Triple T(TT);
102    if (T.isOSDarwin())
103      RM = Reloc::DynamicNoPIC;
104    else
105      RM = Reloc::Static;
106  }
107  X->InitMCCodeGenInfo(RM);
108  return X;
109}
110
111extern "C" void LLVMInitializePowerPCMCCodeGenInfo() {
112  TargetRegistry::RegisterMCCodeGenInfo(ThePPC32Target, createPPCMCCodeGenInfo);
113  TargetRegistry::RegisterMCCodeGenInfo(ThePPC64Target, createPPCMCCodeGenInfo);
114}
115