156 lines · 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-exception6//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/Compiler.h"25#include "llvm/Support/ErrorHandling.h"26#include "llvm/Support/FormattedStream.h"27#include "llvm/Support/raw_ostream.h"28 29using namespace llvm;30 31#define GET_INSTRINFO_MC_DESC32#define ENABLE_INSTR_PREDICATE_VERIFIER33#include "XCoreGenInstrInfo.inc"34 35#define GET_SUBTARGETINFO_MC_DESC36#include "XCoreGenSubtargetInfo.inc"37 38#define GET_REGINFO_MC_DESC39#include "XCoreGenRegisterInfo.inc"40 41static MCInstrInfo *createXCoreMCInstrInfo() {42 MCInstrInfo *X = new MCInstrInfo();43 InitXCoreMCInstrInfo(X);44 return X;45}46 47static MCRegisterInfo *createXCoreMCRegisterInfo(const Triple &TT) {48 MCRegisterInfo *X = new MCRegisterInfo();49 InitXCoreMCRegisterInfo(X, XCore::LR);50 return X;51}52 53static MCSubtargetInfo *54createXCoreMCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS) {55 return createXCoreMCSubtargetInfoImpl(TT, CPU, /*TuneCPU*/ CPU, FS);56}57 58static 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 70static 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 78XCoreTargetStreamer::XCoreTargetStreamer(MCStreamer &S) : MCTargetStreamer(S) {}79 80XCoreTargetStreamer::~XCoreTargetStreamer() = default;81 82namespace {83 84class XCoreTargetAsmStreamer : public XCoreTargetStreamer {85 formatted_raw_ostream &OS;86 87public: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 namespace97 98XCoreTargetAsmStreamer::XCoreTargetAsmStreamer(MCStreamer &S,99 formatted_raw_ostream &OS)100 : XCoreTargetStreamer(S), OS(OS) {}101 102void XCoreTargetAsmStreamer::emitCCTopData(StringRef Name) {103 OS << "\t.cc_top " << Name << ".data," << Name << '\n';104}105 106void XCoreTargetAsmStreamer::emitCCTopFunction(StringRef Name) {107 OS << "\t.cc_top " << Name << ".function," << Name << '\n';108}109 110void XCoreTargetAsmStreamer::emitCCBottomData(StringRef Name) {111 OS << "\t.cc_bottom " << Name << ".data\n";112}113 114void XCoreTargetAsmStreamer::emitCCBottomFunction(StringRef Name) {115 OS << "\t.cc_bottom " << Name << ".function\n";116}117 118static MCTargetStreamer *createTargetAsmStreamer(MCStreamer &S,119 formatted_raw_ostream &OS,120 MCInstPrinter *InstPrint) {121 return new XCoreTargetAsmStreamer(S, OS);122}123 124static MCTargetStreamer *createNullTargetStreamer(MCStreamer &S) {125 return new XCoreTargetStreamer(S);126}127 128// Force static initialization.129extern "C" LLVM_ABI LLVM_EXTERNAL_VISIBILITY void130LLVMInitializeXCoreTargetMC() {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 MCInstPrinter147 TargetRegistry::RegisterMCInstPrinter(getTheXCoreTarget(),148 createXCoreMCInstPrinter);149 150 TargetRegistry::RegisterAsmTargetStreamer(getTheXCoreTarget(),151 createTargetAsmStreamer);152 153 TargetRegistry::RegisterNullTargetStreamer(getTheXCoreTarget(),154 createNullTargetStreamer);155}156