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 MCInstPrinter *createMCInstPrinter(const Triple & /*T*/,
  50                                           unsigned SyntaxVariant,
  51                                           const MCAsmInfo &MAI,
  52                                           const MCInstrInfo &MII,
  53                                           const MCRegisterInfo &MRI) {
  54   assert(SyntaxVariant == 0);
  55   return new WebAssemblyInstPrinter(MAI, MII, MRI);
  56 }
  57
  58 static MCCodeEmitter *createCodeEmitter(const MCInstrInfo &MCII,
  59                                         const MCRegisterInfo & /*MRI*/,
  60                                         MCContext &Ctx) {
  61   return createWebAssemblyMCCodeEmitter(MCII, Ctx);
  62 }
  63
  64 static MCAsmBackend *createAsmBackend(const Target & /*T*/,
  65                                       const MCRegisterInfo & /*MRI*/,
  66                                       const Triple &TT, StringRef /*CPU*/) {
  67   return createWebAssemblyAsmBackend(TT);
  68 }
  69
  70 static MCSubtargetInfo *createMCSubtargetInfo(const Triple &TT, StringRef CPU,
  71                                               StringRef FS) {
  72   return createWebAssemblyMCSubtargetInfoImpl(TT, CPU, FS);
  73 }
  74
  75 static MCTargetStreamer *
  76 createObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo & /*STI*/) {
  77   return new WebAssemblyTargetELFStreamer(S);
  78 }
  79
  80 static MCTargetStreamer *createAsmTargetStreamer(MCStreamer &S,
  81                                                  formatted_raw_ostream &OS,
  82                                                  MCInstPrinter * /*InstPrint*/,
  83                                                  bool /*isVerboseAsm*/) {
  84   return new WebAssemblyTargetAsmStreamer(S, OS);
  85 }
  86
  87 // Force static initialization.
  88 extern "C" void LLVMInitializeWebAssemblyTargetMC() {
  89   for (Target *T : {&TheWebAssemblyTarget32, &TheWebAssemblyTarget64}) {
  90     // Register the MC asm info.
  91     RegisterMCAsmInfoFn X(*T, createMCAsmInfo);
  92
  93     // Register the MC instruction info.
  94     TargetRegistry::RegisterMCInstrInfo(*T, createMCInstrInfo);
  95
  96     // Register the MCInstPrinter.
  97     TargetRegistry::RegisterMCInstPrinter(*T, createMCInstPrinter);
  98
  99     // Register the MC code emitter.
 100     TargetRegistry::RegisterMCCodeEmitter(*T, createCodeEmitter);
 101
 102     // Register the ASM Backend.
 103     TargetRegistry::RegisterMCAsmBackend(*T, createAsmBackend);
 104
 105     // Register the MC subtarget info.
 106     TargetRegistry::RegisterMCSubtargetInfo(*T, createMCSubtargetInfo);
 107
 108     // Register the object target streamer.
 109     TargetRegistry::RegisterObjectTargetStreamer(*T,
 110                                                  createObjectTargetStreamer);
 111     // Register the asm target streamer.
 112     TargetRegistry::RegisterAsmTargetStreamer(*T, createAsmTargetStreamer);
 113   }
 114 }