1 //===-- WebAssemblyMCTargetDesc.cpp - WebAssembly Target Descriptions -----===//
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
7 //===----------------------------------------------------------------------===//
10 /// This file provides WebAssembly-specific target descriptions.
12 //===----------------------------------------------------------------------===//
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/Support/ErrorHandling.h"
23 #include "llvm/Support/TargetRegistry.h"
26 #define DEBUG_TYPE "wasm-mc-target-desc"
28 #define GET_INSTRINFO_MC_DESC
29 #include "WebAssemblyGenInstrInfo.inc"
31 #define GET_SUBTARGETINFO_MC_DESC
32 #include "WebAssemblyGenSubtargetInfo.inc"
34 #define GET_REGINFO_MC_DESC
35 #include "WebAssemblyGenRegisterInfo.inc"
37 static MCAsmInfo *createMCAsmInfo(const MCRegisterInfo & /*MRI*/,
39 const MCTargetOptions &Options) {
40 return new WebAssemblyMCAsmInfo(TT, Options);
43 static MCInstrInfo *createMCInstrInfo() {
44 auto *X = new MCInstrInfo();
45 InitWebAssemblyMCInstrInfo(X);
49 static MCRegisterInfo *createMCRegisterInfo(const Triple & /*T*/) {
50 auto *X = new MCRegisterInfo();
51 InitWebAssemblyMCRegisterInfo(X, 0);
55 static MCInstPrinter *createMCInstPrinter(const Triple & /*T*/,
56 unsigned SyntaxVariant,
58 const MCInstrInfo &MII,
59 const MCRegisterInfo &MRI) {
60 assert(SyntaxVariant == 0 && "WebAssembly only has one syntax variant");
61 return new WebAssemblyInstPrinter(MAI, MII, MRI);
64 static MCCodeEmitter *createCodeEmitter(const MCInstrInfo &MCII,
65 const MCRegisterInfo & /*MRI*/,
67 return createWebAssemblyMCCodeEmitter(MCII);
70 static MCAsmBackend *createAsmBackend(const Target & /*T*/,
71 const MCSubtargetInfo &STI,
72 const MCRegisterInfo & /*MRI*/,
73 const MCTargetOptions & /*Options*/) {
74 return createWebAssemblyAsmBackend(STI.getTargetTriple());
77 static MCSubtargetInfo *createMCSubtargetInfo(const Triple &TT, StringRef CPU,
79 return createWebAssemblyMCSubtargetInfoImpl(TT, CPU, FS);
82 static MCTargetStreamer *
83 createObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo &STI) {
84 return new WebAssemblyTargetWasmStreamer(S);
87 static MCTargetStreamer *createAsmTargetStreamer(MCStreamer &S,
88 formatted_raw_ostream &OS,
89 MCInstPrinter * /*InstPrint*/,
90 bool /*isVerboseAsm*/) {
91 return new WebAssemblyTargetAsmStreamer(S, OS);
94 static MCTargetStreamer *createNullTargetStreamer(MCStreamer &S) {
95 return new WebAssemblyTargetNullStreamer(S);
98 // Force static initialization.
99 extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeWebAssemblyTargetMC() {
101 {&getTheWebAssemblyTarget32(), &getTheWebAssemblyTarget64()}) {
102 // Register the MC asm info.
103 RegisterMCAsmInfoFn X(*T, createMCAsmInfo);
105 // Register the MC instruction info.
106 TargetRegistry::RegisterMCInstrInfo(*T, createMCInstrInfo);
108 // Register the MC register info.
109 TargetRegistry::RegisterMCRegInfo(*T, createMCRegisterInfo);
111 // Register the MCInstPrinter.
112 TargetRegistry::RegisterMCInstPrinter(*T, createMCInstPrinter);
114 // Register the MC code emitter.
115 TargetRegistry::RegisterMCCodeEmitter(*T, createCodeEmitter);
117 // Register the ASM Backend.
118 TargetRegistry::RegisterMCAsmBackend(*T, createAsmBackend);
120 // Register the MC subtarget info.
121 TargetRegistry::RegisterMCSubtargetInfo(*T, createMCSubtargetInfo);
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);
133 wasm::ValType WebAssembly::toValType(const MVT &Ty) {
134 switch (Ty.SimpleTy) {
136 return wasm::ValType::I32;
138 return wasm::ValType::I64;
140 return wasm::ValType::F32;
142 return wasm::ValType::F64;
149 return wasm::ValType::V128;
151 return wasm::ValType::EXNREF;
153 llvm_unreachable("unexpected type");