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/MCCodeGenInfo.h"
  19 #include "llvm/MC/MCInstrInfo.h"
  20 #include "llvm/MC/MCRegisterInfo.h"
  21 #include "llvm/MC/MCSubtargetInfo.h"
  22 #include "llvm/Support/TargetRegistry.h"
  23
  24 #define GET_INSTRINFO_MC_DESC
  25 #include "MipsGenInstrInfo.inc"
  26
  27 #define GET_SUBTARGETINFO_MC_DESC
  28 #include "MipsGenSubtargetInfo.inc"
  29
  30 #define GET_REGINFO_MC_DESC
  31 #include "MipsGenRegisterInfo.inc"
  32
  33 using namespace llvm;
  34
  35 static MCInstrInfo *createMipsMCInstrInfo() {
  36   MCInstrInfo *X = new MCInstrInfo();
  37   InitMipsMCInstrInfo(X);
  38   return X;
  39 }
  40
  41 static MCRegisterInfo *createMipsMCRegisterInfo(StringRef TT) {
  42   MCRegisterInfo *X = new MCRegisterInfo();
  43   InitMipsMCRegisterInfo(X, Mips::RA);
  44   return X;
  45 }
  46
  47 static MCSubtargetInfo *createMipsMCSubtargetInfo(StringRef TT, StringRef CPU,
  48                                                   StringRef FS) {
  49   MCSubtargetInfo *X = new MCSubtargetInfo();
  50   InitMipsMCSubtargetInfo(X, TT, CPU, FS);
  51   return X;
  52 }
  53
  54 static MCAsmInfo *createMipsMCAsmInfo(const Target &T, StringRef TT) {
  55   MCAsmInfo *MAI = new MipsMCAsmInfo(T, TT);
  56
  57   MachineLocation Dst(MachineLocation::VirtualFP);
  58   MachineLocation Src(Mips::SP, 0);
  59   MAI->addInitialFrameState(0, Dst, Src);
  60
  61   return MAI;
  62 }
  63
  64 static MCCodeGenInfo *createMipsMCCodeGenInfo(StringRef TT, Reloc::Model RM,
  65                                               CodeModel::Model CM) {
  66   MCCodeGenInfo *X = new MCCodeGenInfo();
  67   if (RM == Reloc::Default) {
  68     // Abicall enables PIC by default
  69     if (TT.find("mipsallegrex") != std::string::npos ||
  70         TT.find("psp") != std::string::npos)
  71       RM = Reloc::Static;
  72     else
  73       RM = Reloc::PIC_;
  74   }
  75   X->InitMCCodeGenInfo(RM, CM);
  76   return X;
  77 }
  78
  79 static MCInstPrinter *createMipsMCInstPrinter(const Target &T,
  80                                               unsigned SyntaxVariant,
  81                                               const MCAsmInfo &MAI) {
  82   return new MipsInstPrinter(MAI);
  83 }
  84
  85 extern "C" void LLVMInitializeMipsTargetMC() {
  86   // Register the MC asm info.
  87   RegisterMCAsmInfoFn X(TheMipsTarget, createMipsMCAsmInfo);
  88   RegisterMCAsmInfoFn Y(TheMipselTarget, createMipsMCAsmInfo);
  89
  90   // Register the MC codegen info.
  91   TargetRegistry::RegisterMCCodeGenInfo(TheMipsTarget,
  92                                         createMipsMCCodeGenInfo);
  93   TargetRegistry::RegisterMCCodeGenInfo(TheMipselTarget,
  94                                         createMipsMCCodeGenInfo);
  95
  96   // Register the MC instruction info.
  97   TargetRegistry::RegisterMCInstrInfo(TheMipsTarget, createMipsMCInstrInfo);
  98
  99   // Register the MC register info.
 100   TargetRegistry::RegisterMCRegInfo(TheMipsTarget, createMipsMCRegisterInfo);
 101   TargetRegistry::RegisterMCRegInfo(TheMipselTarget, createMipsMCRegisterInfo);
 102
 103   // Register the MC subtarget info.
 104   TargetRegistry::RegisterMCSubtargetInfo(TheMipsTarget,
 105                                           createMipsMCSubtargetInfo);
 106
 107   // Register the MCInstPrinter.
 108   TargetRegistry::RegisterMCInstPrinter(TheMipsTarget,
 109                                         createMipsMCInstPrinter);
 110   TargetRegistry::RegisterMCInstPrinter(TheMipselTarget,
 111                                         createMipsMCInstPrinter);
 112 }