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