1 //===-- WebAssemblyMCTargetDesc.cpp - WebAssembly 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 /// \file 10 /// This file provides WebAssembly-specific target descriptions. 11 /// 12 //===----------------------------------------------------------------------===// 13 14 #include "MCTargetDesc/WebAssemblyMCTargetDesc.h" 15 #include "MCTargetDesc/WebAssemblyInstPrinter.h" 16 #include "MCTargetDesc/WebAssemblyMCAsmInfo.h" 17 #include "MCTargetDesc/WebAssemblyTargetStreamer.h" 18 #include "TargetInfo/WebAssemblyTargetInfo.h" 19 #include "llvm/MC/MCInstrInfo.h" 20 #include "llvm/MC/MCRegisterInfo.h" 21 #include "llvm/MC/MCSubtargetInfo.h" 22 #include "llvm/MC/TargetRegistry.h" 23 #include "llvm/Support/ErrorHandling.h" 24 using namespace llvm; 25 26 #define DEBUG_TYPE "wasm-mc-target-desc" 27 28 #define GET_INSTRINFO_MC_DESC 29 #define ENABLE_INSTR_PREDICATE_VERIFIER 30 #include "WebAssemblyGenInstrInfo.inc" 31 32 #define GET_SUBTARGETINFO_MC_DESC 33 #include "WebAssemblyGenSubtargetInfo.inc" 34 35 #define GET_REGINFO_MC_DESC 36 #include "WebAssemblyGenRegisterInfo.inc" 37 38 static MCAsmInfo *createMCAsmInfo(const MCRegisterInfo & /*MRI*/, 39 const Triple &TT, 40 const MCTargetOptions &Options) { 41 return new WebAssemblyMCAsmInfo(TT, Options); 42 } 43 44 static MCInstrInfo *createMCInstrInfo() { 45 auto *X = new MCInstrInfo(); 46 InitWebAssemblyMCInstrInfo(X); 47 return X; 48 } 49 50 static MCRegisterInfo *createMCRegisterInfo(const Triple & /*T*/) { 51 auto *X = new MCRegisterInfo(); 52 InitWebAssemblyMCRegisterInfo(X, 0); 53 return X; 54 } 55 56 static MCInstPrinter *createMCInstPrinter(const Triple & /*T*/, 57 unsigned SyntaxVariant, 58 const MCAsmInfo &MAI, 59 const MCInstrInfo &MII, 60 const MCRegisterInfo &MRI) { 61 assert(SyntaxVariant == 0 && "WebAssembly only has one syntax variant"); 62 return new WebAssemblyInstPrinter(MAI, MII, MRI); 63 } 64 65 static MCCodeEmitter *createCodeEmitter(const MCInstrInfo &MCII, 66 MCContext &Ctx) { 67 return createWebAssemblyMCCodeEmitter(MCII); 68 } 69 70 static MCAsmBackend *createAsmBackend(const Target & /*T*/, 71 const MCSubtargetInfo &STI, 72 const MCRegisterInfo & /*MRI*/, 73 const MCTargetOptions & /*Options*/) { 74 return createWebAssemblyAsmBackend(STI.getTargetTriple()); 75 } 76 77 static MCSubtargetInfo *createMCSubtargetInfo(const Triple &TT, StringRef CPU, 78 StringRef FS) { 79 return createWebAssemblyMCSubtargetInfoImpl(TT, CPU, /*TuneCPU*/ CPU, FS); 80 } 81 82 static MCTargetStreamer * 83 createObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo &STI) { 84 return new WebAssemblyTargetWasmStreamer(S); 85 } 86 87 static MCTargetStreamer *createAsmTargetStreamer(MCStreamer &S, 88 formatted_raw_ostream &OS, 89 MCInstPrinter * /*InstPrint*/, 90 bool /*isVerboseAsm*/) { 91 return new WebAssemblyTargetAsmStreamer(S, OS); 92 } 93 94 static MCTargetStreamer *createNullTargetStreamer(MCStreamer &S) { 95 return new WebAssemblyTargetNullStreamer(S); 96 } 97 98 // Force static initialization. 99 extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeWebAssemblyTargetMC() { 100 for (Target *T : 101 {&getTheWebAssemblyTarget32(), &getTheWebAssemblyTarget64()}) { 102 // Register the MC asm info. 103 RegisterMCAsmInfoFn X(*T, createMCAsmInfo); 104 105 // Register the MC instruction info. 106 TargetRegistry::RegisterMCInstrInfo(*T, createMCInstrInfo); 107 108 // Register the MC register info. 109 TargetRegistry::RegisterMCRegInfo(*T, createMCRegisterInfo); 110 111 // Register the MCInstPrinter. 112 TargetRegistry::RegisterMCInstPrinter(*T, createMCInstPrinter); 113 114 // Register the MC code emitter. 115 TargetRegistry::RegisterMCCodeEmitter(*T, createCodeEmitter); 116 117 // Register the ASM Backend. 118 TargetRegistry::RegisterMCAsmBackend(*T, createAsmBackend); 119 120 // Register the MC subtarget info. 121 TargetRegistry::RegisterMCSubtargetInfo(*T, createMCSubtargetInfo); 122 123 // Register the object target streamer. 124 TargetRegistry::RegisterObjectTargetStreamer(*T, 125 createObjectTargetStreamer); 126 // Register the asm target streamer. 127 TargetRegistry::RegisterAsmTargetStreamer(*T, createAsmTargetStreamer); 128 // Register the null target streamer. 129 TargetRegistry::RegisterNullTargetStreamer(*T, createNullTargetStreamer); 130 } 131 } 132