lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.cpp

   1 //===-- WebAssemblyMCTargetDesc.cpp - WebAssembly Target Descriptions -----===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 ///
  10 /// \file
  11 /// \brief This file provides WebAssembly-specific target descriptions.
  12 ///
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "WebAssemblyMCTargetDesc.h"
  16 #include "InstPrinter/WebAssemblyInstPrinter.h"
  17 #include "WebAssemblyMCAsmInfo.h"
  18 #include "WebAssemblyTargetStreamer.h"
  19 #include "llvm/MC/MCCodeGenInfo.h"
  20 #include "llvm/MC/MCInstrInfo.h"
  21 #include "llvm/MC/MCRegisterInfo.h"
  22 #include "llvm/MC/MCSubtargetInfo.h"
  23 #include "llvm/Support/ErrorHandling.h"
  24 #include "llvm/Support/TargetRegistry.h"
  25 using namespace llvm;
  26
  27 #define DEBUG_TYPE "wasm-mc-target-desc"
  28
  29 #define GET_INSTRINFO_MC_DESC
  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   return new WebAssemblyMCAsmInfo(TT);
  41 }
  42
  43 static MCInstrInfo *createMCInstrInfo() {
  44   MCInstrInfo *X = new MCInstrInfo();
  45   InitWebAssemblyMCInstrInfo(X);
  46   return X;
  47 }
  48
  49 static MCRegisterInfo *createMCRegisterInfo(const Triple & /*T*/) {
  50   MCRegisterInfo *X = new MCRegisterInfo();
  51   InitWebAssemblyMCRegisterInfo(X, 0);
  52   return X;
  53 }
  54
  55 static MCInstPrinter *createMCInstPrinter(const Triple & /*T*/,
  56                                           unsigned SyntaxVariant,
  57                                           const MCAsmInfo &MAI,
  58                                           const MCInstrInfo &MII,
  59                                           const MCRegisterInfo &MRI) {
  60   assert(SyntaxVariant == 0);
  61   return new WebAssemblyInstPrinter(MAI, MII, MRI);
  62 }
  63
  64 static MCCodeEmitter *createCodeEmitter(const MCInstrInfo &MCII,
  65                                         const MCRegisterInfo & /*MRI*/,
  66                                         MCContext &Ctx) {
  67   return createWebAssemblyMCCodeEmitter(MCII, Ctx);
  68 }
  69
  70 static MCAsmBackend *createAsmBackend(const Target & /*T*/,
  71                                       const MCRegisterInfo & /*MRI*/,
  72                                       const Triple &TT, StringRef /*CPU*/) {
  73   return createWebAssemblyAsmBackend(TT);
  74 }
  75
  76 static MCSubtargetInfo *createMCSubtargetInfo(const Triple &TT, StringRef CPU,
  77                                               StringRef FS) {
  78   return createWebAssemblyMCSubtargetInfoImpl(TT, CPU, FS);
  79 }
  80
  81 static MCTargetStreamer *
  82 createObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo & /*STI*/) {
  83   return new WebAssemblyTargetELFStreamer(S);
  84 }
  85
  86 static MCTargetStreamer *createAsmTargetStreamer(MCStreamer &S,
  87                                                  formatted_raw_ostream &OS,
  88                                                  MCInstPrinter * /*InstPrint*/,
  89                                                  bool /*isVerboseAsm*/) {
  90   return new WebAssemblyTargetAsmStreamer(S, OS);
  91 }
  92
  93 // Force static initialization.
  94 extern "C" void LLVMInitializeWebAssemblyTargetMC() {
  95   for (Target *T : {&TheWebAssemblyTarget32, &TheWebAssemblyTarget64}) {
  96     // Register the MC asm info.
  97     RegisterMCAsmInfoFn X(*T, createMCAsmInfo);
  98
  99     // Register the MC instruction info.
 100     TargetRegistry::RegisterMCInstrInfo(*T, createMCInstrInfo);
 101
 102     // Register the MC register info.
 103     TargetRegistry::RegisterMCRegInfo(*T, createMCRegisterInfo);
 104
 105     // Register the MCInstPrinter.
 106     TargetRegistry::RegisterMCInstPrinter(*T, createMCInstPrinter);
 107
 108     // Register the MC code emitter.
 109     TargetRegistry::RegisterMCCodeEmitter(*T, createCodeEmitter);
 110
 111     // Register the ASM Backend.
 112     TargetRegistry::RegisterMCAsmBackend(*T, createAsmBackend);
 113
 114     // Register the MC subtarget info.
 115     TargetRegistry::RegisterMCSubtargetInfo(*T, createMCSubtargetInfo);
 116
 117     // Register the object target streamer.
 118     TargetRegistry::RegisterObjectTargetStreamer(*T,
 119                                                  createObjectTargetStreamer);
 120     // Register the asm target streamer.
 121     TargetRegistry::RegisterAsmTargetStreamer(*T, createAsmTargetStreamer);
 122   }
 123 }