lib/Target/XCore/MCTargetDesc/XCoreMCTargetDesc.cpp

   1 //===-- XCoreMCTargetDesc.cpp - XCore 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 XCore specific target descriptions.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "XCoreMCTargetDesc.h"
  15 #include "InstPrinter/XCoreInstPrinter.h"
  16 #include "XCoreMCAsmInfo.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/ErrorHandling.h"
  22 #include "llvm/Support/TargetRegistry.h"
  23
  24 #define GET_INSTRINFO_MC_DESC
  25 #include "XCoreGenInstrInfo.inc"
  26
  27 #define GET_SUBTARGETINFO_MC_DESC
  28 #include "XCoreGenSubtargetInfo.inc"
  29
  30 #define GET_REGINFO_MC_DESC
  31 #include "XCoreGenRegisterInfo.inc"
  32
  33 using namespace llvm;
  34
  35 static MCInstrInfo *createXCoreMCInstrInfo() {
  36   MCInstrInfo *X = new MCInstrInfo();
  37   InitXCoreMCInstrInfo(X);
  38   return X;
  39 }
  40
  41 static MCRegisterInfo *createXCoreMCRegisterInfo(StringRef TT) {
  42   MCRegisterInfo *X = new MCRegisterInfo();
  43   InitXCoreMCRegisterInfo(X, XCore::LR);
  44   return X;
  45 }
  46
  47 static MCSubtargetInfo *createXCoreMCSubtargetInfo(StringRef TT, StringRef CPU,
  48                                                    StringRef FS) {
  49   MCSubtargetInfo *X = new MCSubtargetInfo();
  50   InitXCoreMCSubtargetInfo(X, TT, CPU, FS);
  51   return X;
  52 }
  53
  54 static MCAsmInfo *createXCoreMCAsmInfo(const MCRegisterInfo &MRI,
  55                                        StringRef TT) {
  56   MCAsmInfo *MAI = new XCoreMCAsmInfo(TT);
  57
  58   // Initial state of the frame pointer is SP.
  59   MCCFIInstruction Inst = MCCFIInstruction::createDefCfa(0, XCore::SP, 0);
  60   MAI->addInitialFrameState(Inst);
  61
  62   return MAI;
  63 }
  64
  65 static MCCodeGenInfo *createXCoreMCCodeGenInfo(StringRef TT, Reloc::Model RM,
  66                                                CodeModel::Model CM,
  67                                                CodeGenOpt::Level OL) {
  68   MCCodeGenInfo *X = new MCCodeGenInfo();
  69   if (RM == Reloc::Default) {
  70     RM = Reloc::Static;
  71   }
  72   if (CM == CodeModel::Default) {
  73     CM = CodeModel::Small;
  74   }
  75   if (CM != CodeModel::Small && CM != CodeModel::Large)
  76     report_fatal_error("Target only supports CodeModel Small or Large");
  77
  78   X->InitMCCodeGenInfo(RM, CM, OL);
  79   return X;
  80 }
  81
  82 static MCInstPrinter *createXCoreMCInstPrinter(const Target &T,
  83                                                unsigned SyntaxVariant,
  84                                                const MCAsmInfo &MAI,
  85                                                const MCInstrInfo &MII,
  86                                                const MCRegisterInfo &MRI,
  87                                                const MCSubtargetInfo &STI) {
  88   return new XCoreInstPrinter(MAI, MII, MRI);
  89 }
  90
  91 // Force static initialization.
  92 extern "C" void LLVMInitializeXCoreTargetMC() {
  93   // Register the MC asm info.
  94   RegisterMCAsmInfoFn X(TheXCoreTarget, createXCoreMCAsmInfo);
  95
  96   // Register the MC codegen info.
  97   TargetRegistry::RegisterMCCodeGenInfo(TheXCoreTarget,
  98                                         createXCoreMCCodeGenInfo);
  99
 100   // Register the MC instruction info.
 101   TargetRegistry::RegisterMCInstrInfo(TheXCoreTarget, createXCoreMCInstrInfo);
 102
 103   // Register the MC register info.
 104   TargetRegistry::RegisterMCRegInfo(TheXCoreTarget, createXCoreMCRegisterInfo);
 105
 106   // Register the MC subtarget info.
 107   TargetRegistry::RegisterMCSubtargetInfo(TheXCoreTarget,
 108                                           createXCoreMCSubtargetInfo);
 109
 110   // Register the MCInstPrinter
 111   TargetRegistry::RegisterMCInstPrinter(TheXCoreTarget,
 112                                         createXCoreMCInstPrinter);
 113 }