llvm/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/MC/TargetRegistry.h"
  24 #include "llvm/Support/CodeGen.h"
  25 #include "llvm/Support/ErrorHandling.h"
  26 #include "llvm/Support/FormattedStream.h"
  27 #include "llvm/Support/raw_ostream.h"
  28
  29 using namespace llvm;
  30
  31 #define GET_INSTRINFO_MC_DESC
  32 #define ENABLE_INSTR_PREDICATE_VERIFIER
  33 #include "XCoreGenInstrInfo.inc"
  34
  35 #define GET_SUBTARGETINFO_MC_DESC
  36 #include "XCoreGenSubtargetInfo.inc"
  37
  38 #define GET_REGINFO_MC_DESC
  39 #include "XCoreGenRegisterInfo.inc"
  40
  41 static MCInstrInfo *createXCoreMCInstrInfo() {
  42   MCInstrInfo *X = new MCInstrInfo();
  43   InitXCoreMCInstrInfo(X);
  44   return X;
  45 }
  46
  47 static MCRegisterInfo *createXCoreMCRegisterInfo(const Triple &TT) {
  48   MCRegisterInfo *X = new MCRegisterInfo();
  49   InitXCoreMCRegisterInfo(X, XCore::LR);
  50   return X;
  51 }
  52
  53 static MCSubtargetInfo *
  54 createXCoreMCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS) {
  55   return createXCoreMCSubtargetInfoImpl(TT, CPU, /*TuneCPU*/ CPU, FS);
  56 }
  57
  58 static MCAsmInfo *createXCoreMCAsmInfo(const MCRegisterInfo &MRI,
  59                                        const Triple &TT,
  60                                        const MCTargetOptions &Options) {
  61   MCAsmInfo *MAI = new XCoreMCAsmInfo(TT);
  62
  63   // Initial state of the frame pointer is SP.
  64   MCCFIInstruction Inst = MCCFIInstruction::cfiDefCfa(nullptr, XCore::SP, 0);
  65   MAI->addInitialFrameState(Inst);
  66
  67   return MAI;
  68 }
  69
  70 static MCInstPrinter *createXCoreMCInstPrinter(const Triple &T,
  71                                                unsigned SyntaxVariant,
  72                                                const MCAsmInfo &MAI,
  73                                                const MCInstrInfo &MII,
  74                                                const MCRegisterInfo &MRI) {
  75   return new XCoreInstPrinter(MAI, MII, MRI);
  76 }
  77
  78 XCoreTargetStreamer::XCoreTargetStreamer(MCStreamer &S) : MCTargetStreamer(S) {}
  79
  80 XCoreTargetStreamer::~XCoreTargetStreamer() = default;
  81
  82 namespace {
  83
  84 class XCoreTargetAsmStreamer : public XCoreTargetStreamer {
  85   formatted_raw_ostream &OS;
  86
  87 public:
  88   XCoreTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS);
  89
  90   void emitCCTopData(StringRef Name) override;
  91   void emitCCTopFunction(StringRef Name) override;
  92   void emitCCBottomData(StringRef Name) override;
  93   void emitCCBottomFunction(StringRef Name) override;
  94 };
  95
  96 } // end anonymous namespace
  97
  98 XCoreTargetAsmStreamer::XCoreTargetAsmStreamer(MCStreamer &S,
  99                                                formatted_raw_ostream &OS)
 100     : XCoreTargetStreamer(S), OS(OS) {}
 101
 102 void XCoreTargetAsmStreamer::emitCCTopData(StringRef Name) {
 103   OS << "\t.cc_top " << Name << ".data," << Name << '\n';
 104 }
 105
 106 void XCoreTargetAsmStreamer::emitCCTopFunction(StringRef Name) {
 107   OS << "\t.cc_top " << Name << ".function," << Name << '\n';
 108 }
 109
 110 void XCoreTargetAsmStreamer::emitCCBottomData(StringRef Name) {
 111   OS << "\t.cc_bottom " << Name << ".data\n";
 112 }
 113
 114 void XCoreTargetAsmStreamer::emitCCBottomFunction(StringRef Name) {
 115   OS << "\t.cc_bottom " << Name << ".function\n";
 116 }
 117
 118 static MCTargetStreamer *createTargetAsmStreamer(MCStreamer &S,
 119                                                  formatted_raw_ostream &OS,
 120                                                  MCInstPrinter *InstPrint,
 121                                                  bool isVerboseAsm) {
 122   return new XCoreTargetAsmStreamer(S, OS);
 123 }
 124
 125 static MCTargetStreamer *createNullTargetStreamer(MCStreamer &S) {
 126   return new XCoreTargetStreamer(S);
 127 }
 128
 129 // Force static initialization.
 130 extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeXCoreTargetMC() {
 131   // Register the MC asm info.
 132   RegisterMCAsmInfoFn X(getTheXCoreTarget(), createXCoreMCAsmInfo);
 133
 134   // Register the MC instruction info.
 135   TargetRegistry::RegisterMCInstrInfo(getTheXCoreTarget(),
 136                                       createXCoreMCInstrInfo);
 137
 138   // Register the MC register info.
 139   TargetRegistry::RegisterMCRegInfo(getTheXCoreTarget(),
 140                                     createXCoreMCRegisterInfo);
 141
 142   // Register the MC subtarget info.
 143   TargetRegistry::RegisterMCSubtargetInfo(getTheXCoreTarget(),
 144                                           createXCoreMCSubtargetInfo);
 145
 146   // Register the MCInstPrinter
 147   TargetRegistry::RegisterMCInstPrinter(getTheXCoreTarget(),
 148                                         createXCoreMCInstPrinter);
 149
 150   TargetRegistry::RegisterAsmTargetStreamer(getTheXCoreTarget(),
 151                                             createTargetAsmStreamer);
 152
 153   TargetRegistry::RegisterNullTargetStreamer(getTheXCoreTarget(),
 154                                              createNullTargetStreamer);
 155 }