lib/Target/Sparc/MCTargetDesc/SparcMCTargetDesc.cpp

   1 //===-- SparcMCTargetDesc.cpp - Sparc 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 Sparc specific target descriptions.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "SparcMCTargetDesc.h"
  15 #include "SparcMCAsmInfo.h"
  16 #include "SparcTargetStreamer.h"
  17 #include "InstPrinter/SparcInstPrinter.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/ErrorHandling.h"
  23 #include "llvm/Support/TargetRegistry.h"
  24
  25 #define GET_INSTRINFO_MC_DESC
  26 #include "SparcGenInstrInfo.inc"
  27
  28 #define GET_SUBTARGETINFO_MC_DESC
  29 #include "SparcGenSubtargetInfo.inc"
  30
  31 #define GET_REGINFO_MC_DESC
  32 #include "SparcGenRegisterInfo.inc"
  33
  34 using namespace llvm;
  35
  36 static MCInstrInfo *createSparcMCInstrInfo() {
  37   MCInstrInfo *X = new MCInstrInfo();
  38   InitSparcMCInstrInfo(X);
  39   return X;
  40 }
  41
  42 static MCRegisterInfo *createSparcMCRegisterInfo(StringRef TT) {
  43   MCRegisterInfo *X = new MCRegisterInfo();
  44   InitSparcMCRegisterInfo(X, SP::I7);
  45   return X;
  46 }
  47
  48 static MCSubtargetInfo *createSparcMCSubtargetInfo(StringRef TT, StringRef CPU,
  49                                                    StringRef FS) {
  50   MCSubtargetInfo *X = new MCSubtargetInfo();
  51   InitSparcMCSubtargetInfo(X, TT, CPU, FS);
  52   return X;
  53 }
  54
  55 // Code models. Some only make sense for 64-bit code.
  56 //
  57 // SunCC  Reloc   CodeModel  Constraints
  58 // abs32  Static  Small      text+data+bss linked below 2^32 bytes
  59 // abs44  Static  Medium     text+data+bss linked below 2^44 bytes
  60 // abs64  Static  Large      text smaller than 2^31 bytes
  61 // pic13  PIC_    Small      GOT < 2^13 bytes
  62 // pic32  PIC_    Medium     GOT < 2^32 bytes
  63 //
  64 // All code models require that the text segment is smaller than 2GB.
  65
  66 static MCCodeGenInfo *createSparcMCCodeGenInfo(StringRef TT, Reloc::Model RM,
  67                                                CodeModel::Model CM,
  68                                                CodeGenOpt::Level OL) {
  69   MCCodeGenInfo *X = new MCCodeGenInfo();
  70
  71   // The default 32-bit code model is abs32/pic32.
  72   if (CM == CodeModel::Default)
  73     CM = RM == Reloc::PIC_ ? CodeModel::Medium : CodeModel::Small;
  74
  75   X->InitMCCodeGenInfo(RM, CM, OL);
  76   return X;
  77 }
  78
  79 static MCCodeGenInfo *createSparcV9MCCodeGenInfo(StringRef TT, Reloc::Model RM,
  80                                                  CodeModel::Model CM,
  81                                                  CodeGenOpt::Level OL) {
  82   MCCodeGenInfo *X = new MCCodeGenInfo();
  83
  84   // The default 64-bit code model is abs44/pic32.
  85   if (CM == CodeModel::Default)
  86     CM = CodeModel::Medium;
  87
  88   X->InitMCCodeGenInfo(RM, CM, OL);
  89   return X;
  90 }
  91
  92 static MCStreamer *
  93 createMCAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
  94                     bool isVerboseAsm, bool useLoc, bool useCFI,
  95                     bool useDwarfDirectory, MCInstPrinter *InstPrint,
  96                     MCCodeEmitter *CE, MCAsmBackend *TAB, bool ShowInst) {
  97   SparcTargetAsmStreamer *S = new SparcTargetAsmStreamer(OS);
  98
  99   return llvm::createAsmStreamer(Ctx, S, OS, isVerboseAsm, useLoc, useCFI,
 100                                  useDwarfDirectory, InstPrint, CE, TAB,
 101                                  ShowInst);
 102 }
 103
 104 static MCInstPrinter *createSparcMCInstPrinter(const Target &T,
 105                                               unsigned SyntaxVariant,
 106                                               const MCAsmInfo &MAI,
 107                                               const MCInstrInfo &MII,
 108                                               const MCRegisterInfo &MRI,
 109                                               const MCSubtargetInfo &STI) {
 110   return new SparcInstPrinter(MAI, MII, MRI);
 111 }
 112
 113 extern "C" void LLVMInitializeSparcTargetMC() {
 114   // Register the MC asm info.
 115   RegisterMCAsmInfo<SparcELFMCAsmInfo> X(TheSparcTarget);
 116   RegisterMCAsmInfo<SparcELFMCAsmInfo> Y(TheSparcV9Target);
 117
 118   // Register the MC codegen info.
 119   TargetRegistry::RegisterMCCodeGenInfo(TheSparcTarget,
 120                                        createSparcMCCodeGenInfo);
 121   TargetRegistry::RegisterMCCodeGenInfo(TheSparcV9Target,
 122                                        createSparcV9MCCodeGenInfo);
 123
 124   // Register the MC instruction info.
 125   TargetRegistry::RegisterMCInstrInfo(TheSparcTarget, createSparcMCInstrInfo);
 126   TargetRegistry::RegisterMCInstrInfo(TheSparcV9Target, createSparcMCInstrInfo);
 127
 128   // Register the MC register info.
 129   TargetRegistry::RegisterMCRegInfo(TheSparcTarget, createSparcMCRegisterInfo);
 130   TargetRegistry::RegisterMCRegInfo(TheSparcV9Target,
 131                                     createSparcMCRegisterInfo);
 132
 133   // Register the MC subtarget info.
 134   TargetRegistry::RegisterMCSubtargetInfo(TheSparcTarget,
 135                                           createSparcMCSubtargetInfo);
 136   TargetRegistry::RegisterMCSubtargetInfo(TheSparcV9Target,
 137                                           createSparcMCSubtargetInfo);
 138
 139   // Register the MC Code Emitter.
 140   TargetRegistry::RegisterMCCodeEmitter(TheSparcTarget,
 141                                         createSparcMCCodeEmitter);
 142   TargetRegistry::RegisterMCCodeEmitter(TheSparcV9Target,
 143                                         createSparcMCCodeEmitter);
 144
 145   //Register the asm backend.
 146   TargetRegistry::RegisterMCAsmBackend(TheSparcTarget,
 147                                        createSparcAsmBackend);
 148   TargetRegistry::RegisterMCAsmBackend(TheSparcV9Target,
 149                                        createSparcAsmBackend);
 150
 151   TargetRegistry::RegisterAsmStreamer(TheSparcTarget,
 152                                       createMCAsmStreamer);
 153   TargetRegistry::RegisterAsmStreamer(TheSparcV9Target,
 154                                       createMCAsmStreamer);
 155
 156   // Register the MCInstPrinter
 157   TargetRegistry::RegisterMCInstPrinter(TheSparcTarget,
 158                                         createSparcMCInstPrinter);
 159   TargetRegistry::RegisterMCInstPrinter(TheSparcV9Target,
 160                                         createSparcMCInstPrinter);
 161 }