1 //===-- WebAssemblyMCTargetDesc.cpp - WebAssembly Target Descriptions -----===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// \brief This file provides WebAssembly-specific target descriptions.
13 //===----------------------------------------------------------------------===//
15 #include "WebAssemblyMCTargetDesc.h"
16 #include "InstPrinter/WebAssemblyInstPrinter.h"
17 #include "WebAssemblyMCAsmInfo.h"
18 #include "WebAssemblyTargetStreamer.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 if (TT.isOSBinFormatELF())
40 return new WebAssemblyMCAsmInfoELF(TT);
41 return new WebAssemblyMCAsmInfo(TT);
44 static MCInstrInfo *createMCInstrInfo() {
45 MCInstrInfo *X = new MCInstrInfo();
46 InitWebAssemblyMCInstrInfo(X);
50 static MCRegisterInfo *createMCRegisterInfo(const Triple & /*T*/) {
51 MCRegisterInfo *X = new MCRegisterInfo();
52 InitWebAssemblyMCRegisterInfo(X, 0);
56 static MCInstPrinter *createMCInstPrinter(const Triple & /*T*/,
57 unsigned SyntaxVariant,
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);
65 static MCCodeEmitter *createCodeEmitter(const MCInstrInfo &MCII,
66 const MCRegisterInfo & /*MRI*/,
68 return createWebAssemblyMCCodeEmitter(MCII);
71 static MCAsmBackend *createAsmBackend(const Target & /*T*/,
72 const MCSubtargetInfo &STI,
73 const MCRegisterInfo & /*MRI*/,
74 const MCTargetOptions & /*Options*/) {
75 return createWebAssemblyAsmBackend(STI.getTargetTriple());
78 static MCSubtargetInfo *createMCSubtargetInfo(const Triple &TT, StringRef CPU,
80 return createWebAssemblyMCSubtargetInfoImpl(TT, CPU, FS);
83 static MCTargetStreamer *
84 createObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo &STI) {
85 const Triple &TT = STI.getTargetTriple();
86 if (TT.isOSBinFormatELF())
87 return new WebAssemblyTargetELFStreamer(S);
89 return new WebAssemblyTargetWasmStreamer(S);
92 static MCTargetStreamer *createAsmTargetStreamer(MCStreamer &S,
93 formatted_raw_ostream &OS,
94 MCInstPrinter * /*InstPrint*/,
95 bool /*isVerboseAsm*/) {
96 return new WebAssemblyTargetAsmStreamer(S, OS);
99 // Force static initialization.
100 extern "C" void LLVMInitializeWebAssemblyTargetMC() {
102 {&getTheWebAssemblyTarget32(), &getTheWebAssemblyTarget64()}) {
103 // Register the MC asm info.
104 RegisterMCAsmInfoFn X(*T, createMCAsmInfo);
106 // Register the MC instruction info.
107 TargetRegistry::RegisterMCInstrInfo(*T, createMCInstrInfo);
109 // Register the MC register info.
110 TargetRegistry::RegisterMCRegInfo(*T, createMCRegisterInfo);
112 // Register the MCInstPrinter.
113 TargetRegistry::RegisterMCInstPrinter(*T, createMCInstPrinter);
115 // Register the MC code emitter.
116 TargetRegistry::RegisterMCCodeEmitter(*T, createCodeEmitter);
118 // Register the ASM Backend.
119 TargetRegistry::RegisterMCAsmBackend(*T, createAsmBackend);
121 // Register the MC subtarget info.
122 TargetRegistry::RegisterMCSubtargetInfo(*T, createMCSubtargetInfo);
124 // Register the object target streamer.
125 TargetRegistry::RegisterObjectTargetStreamer(*T,
126 createObjectTargetStreamer);
127 // Register the asm target streamer.
128 TargetRegistry::RegisterAsmTargetStreamer(*T, createAsmTargetStreamer);
132 wasm::ValType WebAssembly::toValType(const MVT &Ty) {
133 switch (Ty.SimpleTy) {
134 case MVT::i32: return wasm::ValType::I32;
135 case MVT::i64: return wasm::ValType::I64;
136 case MVT::f32: return wasm::ValType::F32;
137 case MVT::f64: return wasm::ValType::F64;
138 default: llvm_unreachable("unexpected type");