lib/Target/Mips/MCTargetDesc/MipsMCTargetDesc.cpp

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