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 return new WebAssemblyMCAsmInfo(TT);
42 static void adjustCodeGenOpts(const Triple & /*TT*/, Reloc::Model /*RM*/,
43 CodeModel::Model &CM) {
44 CodeModel::Model M = (CM == CodeModel::Default || CM == CodeModel::JITDefault)
47 if (M != CodeModel::Large)
48 report_fatal_error("Non-large code models are not supported yet");
51 static MCInstrInfo *createMCInstrInfo() {
52 MCInstrInfo *X = new MCInstrInfo();
53 InitWebAssemblyMCInstrInfo(X);
57 static MCRegisterInfo *createMCRegisterInfo(const Triple & /*T*/) {
58 MCRegisterInfo *X = new MCRegisterInfo();
59 InitWebAssemblyMCRegisterInfo(X, 0);
63 static MCInstPrinter *createMCInstPrinter(const Triple & /*T*/,
64 unsigned SyntaxVariant,
66 const MCInstrInfo &MII,
67 const MCRegisterInfo &MRI) {
68 assert(SyntaxVariant == 0 && "WebAssembly only has one syntax variant");
69 return new WebAssemblyInstPrinter(MAI, MII, MRI);
72 static MCCodeEmitter *createCodeEmitter(const MCInstrInfo &MCII,
73 const MCRegisterInfo & /*MRI*/,
74 MCContext & /*Ctx*/) {
75 return createWebAssemblyMCCodeEmitter(MCII);
78 static MCAsmBackend *createAsmBackend(const Target & /*T*/,
79 const MCRegisterInfo & /*MRI*/,
80 const Triple &TT, StringRef /*CPU*/,
81 const MCTargetOptions & /*Options*/) {
82 return createWebAssemblyAsmBackend(TT);
85 static MCSubtargetInfo *createMCSubtargetInfo(const Triple &TT, StringRef CPU,
87 return createWebAssemblyMCSubtargetInfoImpl(TT, CPU, FS);
90 static MCTargetStreamer *
91 createObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo & /*STI*/) {
92 return new WebAssemblyTargetELFStreamer(S);
95 static MCTargetStreamer *createAsmTargetStreamer(MCStreamer &S,
96 formatted_raw_ostream &OS,
97 MCInstPrinter * /*InstPrint*/,
98 bool /*isVerboseAsm*/) {
99 return new WebAssemblyTargetAsmStreamer(S, OS);
102 // Force static initialization.
103 extern "C" void LLVMInitializeWebAssemblyTargetMC() {
105 {&getTheWebAssemblyTarget32(), &getTheWebAssemblyTarget64()}) {
106 // Register the MC asm info.
107 RegisterMCAsmInfoFn X(*T, createMCAsmInfo);
109 // Register the MC instruction info.
110 TargetRegistry::RegisterMCInstrInfo(*T, createMCInstrInfo);
112 // Register the MC codegen info.
113 TargetRegistry::registerMCAdjustCodeGenOpts(*T, adjustCodeGenOpts);
115 // Register the MC register info.
116 TargetRegistry::RegisterMCRegInfo(*T, createMCRegisterInfo);
118 // Register the MCInstPrinter.
119 TargetRegistry::RegisterMCInstPrinter(*T, createMCInstPrinter);
121 // Register the MC code emitter.
122 TargetRegistry::RegisterMCCodeEmitter(*T, createCodeEmitter);
124 // Register the ASM Backend.
125 TargetRegistry::RegisterMCAsmBackend(*T, createAsmBackend);
127 // Register the MC subtarget info.
128 TargetRegistry::RegisterMCSubtargetInfo(*T, createMCSubtargetInfo);
130 // Register the object target streamer.
131 TargetRegistry::RegisterObjectTargetStreamer(*T,
132 createObjectTargetStreamer);
133 // Register the asm target streamer.
134 TargetRegistry::RegisterAsmTargetStreamer(*T, createAsmTargetStreamer);
138 WebAssembly::ValType WebAssembly::toValType(const MVT &Ty) {
139 switch (Ty.SimpleTy) {
140 case MVT::i32: return WebAssembly::ValType::I32;
141 case MVT::i64: return WebAssembly::ValType::I64;
142 case MVT::f32: return WebAssembly::ValType::F32;
143 case MVT::f64: return WebAssembly::ValType::F64;
144 default: llvm_unreachable("unexpected type");