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      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   X->InitMCCodeGenInfo(RM, CM, OL);
     73   return X;
     74 }
     75 
     76 static MCInstPrinter *createXCoreMCInstPrinter(const Target &T,
     77                                                unsigned SyntaxVariant,
     78                                                const MCAsmInfo &MAI,
     79                                                const MCInstrInfo &MII,
     80                                                const MCRegisterInfo &MRI,
     81                                                const MCSubtargetInfo &STI) {
     82   return new XCoreInstPrinter(MAI, MII, MRI);
     83 }
     84 
     85 // Force static initialization.
     86 extern "C" void LLVMInitializeXCoreTargetMC() {
     87   // Register the MC asm info.
     88   RegisterMCAsmInfoFn X(TheXCoreTarget, createXCoreMCAsmInfo);
     89 
     90   // Register the MC codegen info.
     91   TargetRegistry::RegisterMCCodeGenInfo(TheXCoreTarget,
     92                                         createXCoreMCCodeGenInfo);
     93 
     94   // Register the MC instruction info.
     95   TargetRegistry::RegisterMCInstrInfo(TheXCoreTarget, createXCoreMCInstrInfo);
     96 
     97   // Register the MC register info.
     98   TargetRegistry::RegisterMCRegInfo(TheXCoreTarget, createXCoreMCRegisterInfo);
     99 
    100   // Register the MC subtarget info.
    101   TargetRegistry::RegisterMCSubtargetInfo(TheXCoreTarget,
    102                                           createXCoreMCSubtargetInfo);
    103 
    104   // Register the MCInstPrinter
    105   TargetRegistry::RegisterMCInstPrinter(TheXCoreTarget,
    106                                         createXCoreMCInstPrinter);
    107 }
    108