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 void adjustCodeGenOpts(const Triple & /*TT*/, Reloc::Model /*RM*/,
45 CodeModel::Model &CM) {
46 CodeModel::Model M = (CM == CodeModel::Default || CM == CodeModel::JITDefault)
49 if (M != CodeModel::Large)
50 report_fatal_error("Non-large code models are not supported yet");
53 static MCInstrInfo *createMCInstrInfo() {
54 MCInstrInfo *X = new MCInstrInfo();
55 InitWebAssemblyMCInstrInfo(X);
59 static MCRegisterInfo *createMCRegisterInfo(const Triple & /*T*/) {
60 MCRegisterInfo *X = new MCRegisterInfo();
61 InitWebAssemblyMCRegisterInfo(X, 0);
65 static MCInstPrinter *createMCInstPrinter(const Triple & /*T*/,
66 unsigned SyntaxVariant,
68 const MCInstrInfo &MII,
69 const MCRegisterInfo &MRI) {
70 assert(SyntaxVariant == 0 && "WebAssembly only has one syntax variant");
71 return new WebAssemblyInstPrinter(MAI, MII, MRI);
74 static MCCodeEmitter *createCodeEmitter(const MCInstrInfo &MCII,
75 const MCRegisterInfo & /*MRI*/,
77 return createWebAssemblyMCCodeEmitter(MCII, Ctx);
80 static MCAsmBackend *createAsmBackend(const Target & /*T*/,
81 const MCRegisterInfo & /*MRI*/,
82 const Triple &TT, StringRef /*CPU*/,
83 const MCTargetOptions & /*Options*/) {
84 return createWebAssemblyAsmBackend(TT);
87 static MCSubtargetInfo *createMCSubtargetInfo(const Triple &TT, StringRef CPU,
89 return createWebAssemblyMCSubtargetInfoImpl(TT, CPU, FS);
92 static MCTargetStreamer *
93 createObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo &STI) {
94 const Triple &TT = STI.getTargetTriple();
95 if (TT.isOSBinFormatELF())
96 return new WebAssemblyTargetELFStreamer(S);
98 return new WebAssemblyTargetWasmStreamer(S);
101 static MCTargetStreamer *createAsmTargetStreamer(MCStreamer &S,
102 formatted_raw_ostream &OS,
103 MCInstPrinter * /*InstPrint*/,
104 bool /*isVerboseAsm*/) {
105 return new WebAssemblyTargetAsmStreamer(S, OS);
108 // Force static initialization.
109 extern "C" void LLVMInitializeWebAssemblyTargetMC() {
111 {&getTheWebAssemblyTarget32(), &getTheWebAssemblyTarget64()}) {
112 // Register the MC asm info.
113 RegisterMCAsmInfoFn X(*T, createMCAsmInfo);
115 // Register the MC instruction info.
116 TargetRegistry::RegisterMCInstrInfo(*T, createMCInstrInfo);
118 // Register the MC codegen info.
119 TargetRegistry::registerMCAdjustCodeGenOpts(*T, adjustCodeGenOpts);
121 // Register the MC register info.
122 TargetRegistry::RegisterMCRegInfo(*T, createMCRegisterInfo);
124 // Register the MCInstPrinter.
125 TargetRegistry::RegisterMCInstPrinter(*T, createMCInstPrinter);
127 // Register the MC code emitter.
128 TargetRegistry::RegisterMCCodeEmitter(*T, createCodeEmitter);
130 // Register the ASM Backend.
131 TargetRegistry::RegisterMCAsmBackend(*T, createAsmBackend);
133 // Register the MC subtarget info.
134 TargetRegistry::RegisterMCSubtargetInfo(*T, createMCSubtargetInfo);
136 // Register the object target streamer.
137 TargetRegistry::RegisterObjectTargetStreamer(*T,
138 createObjectTargetStreamer);
139 // Register the asm target streamer.
140 TargetRegistry::RegisterAsmTargetStreamer(*T, createAsmTargetStreamer);
144 wasm::ValType WebAssembly::toValType(const MVT &Ty) {
145 switch (Ty.SimpleTy) {
146 case MVT::i32: return wasm::ValType::I32;
147 case MVT::i64: return wasm::ValType::I64;
148 case MVT::f32: return wasm::ValType::F32;
149 case MVT::f64: return wasm::ValType::F64;
150 default: llvm_unreachable("unexpected type");