lib/Target/XCore/MCTargetDesc/XCoreMCTargetDesc.cpp

   1 //===-- XCoreMCTargetDesc.cpp - XCore Target Descriptions -----------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file provides XCore specific target descriptions.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "MCTargetDesc/XCoreMCTargetDesc.h"
  14 #include "MCTargetDesc/XCoreInstPrinter.h"
  15 #include "MCTargetDesc/XCoreMCAsmInfo.h"
  16 #include "TargetInfo/XCoreTargetInfo.h"
  17 #include "XCoreTargetStreamer.h"
  18 #include "llvm/ADT/StringRef.h"
  19 #include "llvm/MC/MCDwarf.h"
  20 #include "llvm/MC/MCInstrInfo.h"
  21 #include "llvm/MC/MCRegisterInfo.h"
  22 #include "llvm/MC/MCSubtargetInfo.h"
  23 #include "llvm/Support/CodeGen.h"
  24 #include "llvm/Support/ErrorHandling.h"
  25 #include "llvm/Support/FormattedStream.h"
  26 #include "llvm/Support/TargetRegistry.h"
  27 #include "llvm/Support/raw_ostream.h"
  28
  29 using namespace llvm;
  30
  31 #define GET_INSTRINFO_MC_DESC
  32 #include "XCoreGenInstrInfo.inc"
  33
  34 #define GET_SUBTARGETINFO_MC_DESC
  35 #include "XCoreGenSubtargetInfo.inc"
  36
  37 #define GET_REGINFO_MC_DESC
  38 #include "XCoreGenRegisterInfo.inc"
  39
  40 static MCInstrInfo *createXCoreMCInstrInfo() {
  41   MCInstrInfo *X = new MCInstrInfo();
  42   InitXCoreMCInstrInfo(X);
  43   return X;
  44 }
  45
  46 static MCRegisterInfo *createXCoreMCRegisterInfo(const Triple &TT) {
  47   MCRegisterInfo *X = new MCRegisterInfo();
  48   InitXCoreMCRegisterInfo(X, XCore::LR);
  49   return X;
  50 }
  51
  52 static MCSubtargetInfo *
  53 createXCoreMCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS) {
  54   return createXCoreMCSubtargetInfoImpl(TT, CPU, FS);
  55 }
  56
  57 static MCAsmInfo *createXCoreMCAsmInfo(const MCRegisterInfo &MRI,
  58                                        const Triple &TT) {
  59   MCAsmInfo *MAI = new XCoreMCAsmInfo(TT);
  60
  61   // Initial state of the frame pointer is SP.
  62   MCCFIInstruction Inst = MCCFIInstruction::createDefCfa(nullptr, XCore::SP, 0);
  63   MAI->addInitialFrameState(Inst);
  64
  65   return MAI;
  66 }
  67
  68 static MCInstPrinter *createXCoreMCInstPrinter(const Triple &T,
  69                                                unsigned SyntaxVariant,
  70                                                const MCAsmInfo &MAI,
  71                                                const MCInstrInfo &MII,
  72                                                const MCRegisterInfo &MRI) {
  73   return new XCoreInstPrinter(MAI, MII, MRI);
  74 }
  75
  76 XCoreTargetStreamer::XCoreTargetStreamer(MCStreamer &S) : MCTargetStreamer(S) {}
  77
  78 XCoreTargetStreamer::~XCoreTargetStreamer() = default;
  79
  80 namespace {
  81
  82 class XCoreTargetAsmStreamer : public XCoreTargetStreamer {
  83   formatted_raw_ostream &OS;
  84
  85 public:
  86   XCoreTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS);
  87
  88   void emitCCTopData(StringRef Name) override;
  89   void emitCCTopFunction(StringRef Name) override;
  90   void emitCCBottomData(StringRef Name) override;
  91   void emitCCBottomFunction(StringRef Name) override;
  92 };
  93
  94 } // end anonymous namespace
  95
  96 XCoreTargetAsmStreamer::XCoreTargetAsmStreamer(MCStreamer &S,
  97                                                formatted_raw_ostream &OS)
  98     : XCoreTargetStreamer(S), OS(OS) {}
  99
 100 void XCoreTargetAsmStreamer::emitCCTopData(StringRef Name) {
 101   OS << "\t.cc_top " << Name << ".data," << Name << '\n';
 102 }
 103
 104 void XCoreTargetAsmStreamer::emitCCTopFunction(StringRef Name) {
 105   OS << "\t.cc_top " << Name << ".function," << Name << '\n';
 106 }
 107
 108 void XCoreTargetAsmStreamer::emitCCBottomData(StringRef Name) {
 109   OS << "\t.cc_bottom " << Name << ".data\n";
 110 }
 111
 112 void XCoreTargetAsmStreamer::emitCCBottomFunction(StringRef Name) {
 113   OS << "\t.cc_bottom " << Name << ".function\n";
 114 }
 115
 116 static MCTargetStreamer *createTargetAsmStreamer(MCStreamer &S,
 117                                                  formatted_raw_ostream &OS,
 118                                                  MCInstPrinter *InstPrint,
 119                                                  bool isVerboseAsm) {
 120   return new XCoreTargetAsmStreamer(S, OS);
 121 }
 122
 123 // Force static initialization.
 124 extern "C" void LLVMInitializeXCoreTargetMC() {
 125   // Register the MC asm info.
 126   RegisterMCAsmInfoFn X(getTheXCoreTarget(), createXCoreMCAsmInfo);
 127
 128   // Register the MC instruction info.
 129   TargetRegistry::RegisterMCInstrInfo(getTheXCoreTarget(),
 130                                       createXCoreMCInstrInfo);
 131
 132   // Register the MC register info.
 133   TargetRegistry::RegisterMCRegInfo(getTheXCoreTarget(),
 134                                     createXCoreMCRegisterInfo);
 135
 136   // Register the MC subtarget info.
 137   TargetRegistry::RegisterMCSubtargetInfo(getTheXCoreTarget(),
 138                                           createXCoreMCSubtargetInfo);
 139
 140   // Register the MCInstPrinter
 141   TargetRegistry::RegisterMCInstPrinter(getTheXCoreTarget(),
 142                                         createXCoreMCInstPrinter);
 143
 144   TargetRegistry::RegisterAsmTargetStreamer(getTheXCoreTarget(),
 145                                             createTargetAsmStreamer);
 146 }