Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1 | //===- subzero/src/WasmTranslator.cpp - WASM to Subzero Translation -------===// |
| 2 | // |
| 3 | // The Subzero Code Generator |
| 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 Defines a driver for translating Wasm bitcode into PNaCl bitcode. |
| 12 | /// |
| 13 | /// The translator uses V8's WebAssembly decoder to handle the binary Wasm |
| 14 | /// format but replaces the usual TurboFan builder with a new PNaCl builder. |
| 15 | /// |
| 16 | //===----------------------------------------------------------------------===// |
| 17 | |
John Porto | 681f90f | 2016-04-05 06:20:50 -0700 | [diff] [blame] | 18 | #if ALLOW_WASM |
| 19 | |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 20 | #include "WasmTranslator.h" |
| 21 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 22 | #ifdef __clang__ |
| 23 | #pragma clang diagnostic push |
| 24 | #pragma clang diagnostic ignored "-Wunused-parameter" |
| 25 | #pragma clang diagnostic ignored "-Wcovered-switch-default" |
| 26 | #endif // __clang__ |
| 27 | #if defined(__GNUC__) && !defined(__clang__) |
| 28 | #pragma GCC diagnostic push |
| 29 | #pragma GCC diagnostic ignored "-Wunused-but-set-variable" |
| 30 | #endif // defined(__GNUC__) && !defined(__clang__) |
| 31 | |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 32 | #include "src/wasm/module-decoder.h" |
| 33 | #include "src/wasm/wasm-opcodes.h" |
| 34 | #include "src/zone.h" |
| 35 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 36 | #include "src/bit-vector.h" |
| 37 | |
| 38 | #include "src/wasm/ast-decoder-impl.h" |
| 39 | |
| 40 | #ifdef __clang__ |
| 41 | #pragma clang diagnostic pop |
| 42 | #endif // __clang__ |
| 43 | #if defined(__GNUC__) && !defined(__clang__) |
| 44 | #pragma GCC diagnostic pop |
| 45 | #endif // defined(__GNUC__) && !defined(__clang__) |
| 46 | |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 47 | #include "IceCfgNode.h" |
| 48 | #include "IceGlobalInits.h" |
| 49 | |
| 50 | using namespace std; |
| 51 | using namespace Ice; |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 52 | using namespace v8::internal; |
| 53 | using namespace v8::internal::wasm; |
| 54 | using v8::internal::wasm::DecodeWasmModule; |
| 55 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 56 | #undef LOG |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 57 | #define LOG(Expr) log([&](Ostream & out) { Expr; }) |
| 58 | |
| 59 | namespace { |
Eric Holk | 085bdae | 2016-04-18 15:08:19 -0700 | [diff] [blame] | 60 | // 64KB |
| 61 | const uint32_t WASM_PAGE_SIZE = 64 << 10; |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 62 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 63 | std::string toStdString(WasmName Name) { |
| 64 | return std::string(Name.name, Name.length); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 65 | } |
| 66 | |
| 67 | Ice::Type toIceType(wasm::LocalType Type) { |
| 68 | switch (Type) { |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 69 | case MachineRepresentation::kNone: |
| 70 | llvm::report_fatal_error("kNone type not supported"); |
| 71 | case MachineRepresentation::kBit: |
| 72 | return IceType_i1; |
| 73 | case MachineRepresentation::kWord8: |
| 74 | return IceType_i8; |
| 75 | case MachineRepresentation::kWord16: |
| 76 | return IceType_i16; |
| 77 | case MachineRepresentation::kWord32: |
| 78 | return IceType_i32; |
| 79 | case MachineRepresentation::kWord64: |
| 80 | return IceType_i64; |
| 81 | case MachineRepresentation::kFloat32: |
| 82 | return IceType_f32; |
| 83 | case MachineRepresentation::kFloat64: |
| 84 | return IceType_f64; |
| 85 | case MachineRepresentation::kSimd128: |
| 86 | llvm::report_fatal_error("ambiguous SIMD type"); |
| 87 | case MachineRepresentation::kTagged: |
| 88 | llvm::report_fatal_error("kTagged type not supported"); |
| 89 | } |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 90 | llvm::report_fatal_error("unexpected type"); |
| 91 | } |
| 92 | |
| 93 | Ice::Type toIceType(v8::internal::MachineType Type) { |
| 94 | // TODO (eholk): reorder these based on expected call frequency. |
| 95 | if (Type == MachineType::Int32()) { |
| 96 | return IceType_i32; |
| 97 | } |
| 98 | if (Type == MachineType::Uint32()) { |
| 99 | return IceType_i32; |
| 100 | } |
| 101 | if (Type == MachineType::Int8()) { |
| 102 | return IceType_i8; |
| 103 | } |
| 104 | if (Type == MachineType::Uint8()) { |
| 105 | return IceType_i8; |
| 106 | } |
| 107 | if (Type == MachineType::Int16()) { |
| 108 | return IceType_i16; |
| 109 | } |
| 110 | if (Type == MachineType::Uint16()) { |
| 111 | return IceType_i16; |
| 112 | } |
| 113 | if (Type == MachineType::Int64()) { |
| 114 | return IceType_i64; |
| 115 | } |
| 116 | if (Type == MachineType::Uint64()) { |
| 117 | return IceType_i64; |
| 118 | } |
| 119 | if (Type == MachineType::Float32()) { |
| 120 | return IceType_f32; |
| 121 | } |
| 122 | if (Type == MachineType::Float64()) { |
| 123 | return IceType_f64; |
| 124 | } |
| 125 | llvm::report_fatal_error("Unsupported MachineType"); |
| 126 | } |
| 127 | |
| 128 | std::string fnNameFromId(uint32_t Id) { |
| 129 | return std::string("fn") + to_string(Id); |
| 130 | } |
| 131 | |
| 132 | std::string getFunctionName(const WasmModule *Module, uint32_t func_index) { |
| 133 | // Try to find the function name in the export table |
| 134 | for (const auto Export : Module->export_table) { |
| 135 | if (Export.func_index == func_index) { |
| 136 | return "__szwasm_" + toStdString(Module->GetName(Export.name_offset, |
| 137 | Export.name_length)); |
| 138 | } |
| 139 | } |
| 140 | return fnNameFromId(func_index); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 141 | } |
| 142 | |
| 143 | } // end of anonymous namespace |
| 144 | |
| 145 | /// This class wraps either an Operand or a CfgNode. |
| 146 | /// |
| 147 | /// Turbofan's sea of nodes representation only has nodes for values, control |
| 148 | /// flow, etc. In Subzero these concepts are all separate. This class lets V8's |
| 149 | /// Wasm decoder treat Subzero objects as though they are all the same. |
| 150 | class OperandNode { |
| 151 | static constexpr uintptr_t NODE_FLAG = 1; |
| 152 | static constexpr uintptr_t UNDEF_PTR = (uintptr_t)-1; |
| 153 | |
| 154 | uintptr_t Data = UNDEF_PTR; |
| 155 | |
| 156 | public: |
| 157 | OperandNode() = default; |
| 158 | explicit OperandNode(Operand *Operand) |
| 159 | : Data(reinterpret_cast<uintptr_t>(Operand)) {} |
| 160 | explicit OperandNode(CfgNode *Node) |
| 161 | : Data(reinterpret_cast<uintptr_t>(Node) | NODE_FLAG) {} |
| 162 | explicit OperandNode(nullptr_t) : Data(UNDEF_PTR) {} |
| 163 | |
| 164 | operator Operand *() const { |
| 165 | if (UNDEF_PTR == Data) { |
| 166 | return nullptr; |
| 167 | } |
| 168 | if (!isOperand()) { |
| 169 | llvm::report_fatal_error("This OperandNode is not an Operand"); |
| 170 | } |
| 171 | return reinterpret_cast<Operand *>(Data); |
| 172 | } |
| 173 | |
| 174 | operator CfgNode *() const { |
| 175 | if (UNDEF_PTR == Data) { |
| 176 | return nullptr; |
| 177 | } |
| 178 | if (!isCfgNode()) { |
| 179 | llvm::report_fatal_error("This OperandNode is not a CfgNode"); |
| 180 | } |
| 181 | return reinterpret_cast<CfgNode *>(Data & ~NODE_FLAG); |
| 182 | } |
| 183 | |
| 184 | explicit operator bool() const { return (Data != UNDEF_PTR) && Data; } |
| 185 | bool operator==(const OperandNode &Rhs) const { |
| 186 | return (Data == Rhs.Data) || |
| 187 | (UNDEF_PTR == Data && (Rhs.Data == 0 || Rhs.Data == NODE_FLAG)) || |
| 188 | (UNDEF_PTR == Rhs.Data && (Data == 0 || Data == NODE_FLAG)); |
| 189 | } |
| 190 | bool operator!=(const OperandNode &Rhs) const { return !(*this == Rhs); } |
| 191 | |
| 192 | bool isOperand() const { return (Data != UNDEF_PTR) && !(Data & NODE_FLAG); } |
| 193 | bool isCfgNode() const { return (Data != UNDEF_PTR) && (Data & NODE_FLAG); } |
| 194 | |
| 195 | Operand *toOperand() const { return static_cast<Operand *>(*this); } |
| 196 | |
| 197 | CfgNode *toCfgNode() const { return static_cast<CfgNode *>(*this); } |
| 198 | }; |
| 199 | |
| 200 | Ostream &operator<<(Ostream &Out, const OperandNode &Op) { |
| 201 | if (Op.isOperand()) { |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 202 | const auto *Oper = Op.toOperand(); |
| 203 | Out << "(Operand*)" << Oper; |
| 204 | if (Oper) { |
| 205 | Out << "::" << Oper->getType(); |
| 206 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 207 | } else if (Op.isCfgNode()) { |
| 208 | Out << "(CfgNode*)" << Op.toCfgNode(); |
| 209 | } else { |
| 210 | Out << "nullptr"; |
| 211 | } |
| 212 | return Out; |
| 213 | } |
| 214 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 215 | bool isComparison(wasm::WasmOpcode Opcode) { |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 216 | switch (Opcode) { |
| 217 | case kExprI32Ne: |
| 218 | case kExprI64Ne: |
| 219 | case kExprI32Eq: |
| 220 | case kExprI64Eq: |
| 221 | case kExprI32LtS: |
| 222 | case kExprI64LtS: |
| 223 | case kExprI32LtU: |
| 224 | case kExprI64LtU: |
| 225 | case kExprI32GeS: |
| 226 | case kExprI64GeS: |
| 227 | case kExprI32GtS: |
| 228 | case kExprI64GtS: |
| 229 | case kExprI32GtU: |
| 230 | case kExprI64GtU: |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 231 | case kExprF32Eq: |
| 232 | case kExprF64Eq: |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 233 | case kExprF32Ne: |
| 234 | case kExprF64Ne: |
| 235 | case kExprF32Le: |
| 236 | case kExprF64Le: |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 237 | case kExprF32Lt: |
| 238 | case kExprF64Lt: |
| 239 | case kExprF32Ge: |
| 240 | case kExprF64Ge: |
| 241 | case kExprF32Gt: |
| 242 | case kExprF64Gt: |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 243 | case kExprI32LeS: |
| 244 | case kExprI64LeS: |
| 245 | case kExprI32GeU: |
| 246 | case kExprI64GeU: |
| 247 | case kExprI32LeU: |
| 248 | case kExprI64LeU: |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 249 | return true; |
| 250 | default: |
| 251 | return false; |
| 252 | } |
| 253 | } |
| 254 | |
| 255 | class IceBuilder { |
| 256 | using Node = OperandNode; |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 257 | using Variable = Ice::Variable; |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 258 | |
| 259 | IceBuilder() = delete; |
| 260 | IceBuilder(const IceBuilder &) = delete; |
| 261 | IceBuilder &operator=(const IceBuilder &) = delete; |
| 262 | |
| 263 | public: |
| 264 | explicit IceBuilder(class Cfg *Func) |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 265 | : ControlPtr(nullptr), Func(Func), Ctx(Func->getContext()) {} |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 266 | |
| 267 | /// Allocates a buffer of Nodes for use by V8. |
| 268 | Node *Buffer(size_t Count) { |
| 269 | LOG(out << "Buffer(" << Count << ")\n"); |
| 270 | return Func->allocateArrayOf<Node>(Count); |
| 271 | } |
| 272 | |
| 273 | Node Error() { llvm::report_fatal_error("Error"); } |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 274 | Node Start(uint32_t Params) { |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 275 | LOG(out << "Start(" << Params << ") = "); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 276 | auto *Entry = Func->getEntryNode(); |
| 277 | assert(Entry); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 278 | LOG(out << Node(Entry) << "\n"); |
Eric Holk | 179a55d | 2016-05-02 10:42:27 -0700 | [diff] [blame] | 279 | |
| 280 | // Load the WasmMemory address to make it available everywhere else in the |
| 281 | // function. |
| 282 | auto *WasmMemoryPtr = |
| 283 | Ctx->getConstantExternSym(Ctx->getGlobalString("WASM_MEMORY")); |
| 284 | assert(WasmMemory == nullptr); |
| 285 | auto *WasmMemoryV = makeVariable(getPointerType()); |
| 286 | Entry->appendInst(InstLoad::create(Func, WasmMemoryV, WasmMemoryPtr)); |
| 287 | WasmMemory = WasmMemoryV; |
| 288 | |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 289 | return OperandNode(Entry); |
| 290 | } |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 291 | Node Param(uint32_t Index, wasm::LocalType Type) { |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 292 | LOG(out << "Param(" << Index << ") = "); |
| 293 | auto *Arg = makeVariable(toIceType(Type)); |
| 294 | assert(Index == NextArg); |
| 295 | Func->addArg(Arg); |
| 296 | ++NextArg; |
| 297 | LOG(out << Node(Arg) << "\n"); |
| 298 | return OperandNode(Arg); |
| 299 | } |
| 300 | Node Loop(CfgNode *Entry) { |
| 301 | auto *Loop = Func->makeNode(); |
| 302 | LOG(out << "Loop(" << Entry << ") = " << Loop << "\n"); |
| 303 | Entry->appendInst(InstBr::create(Func, Loop)); |
| 304 | return OperandNode(Loop); |
| 305 | } |
| 306 | void Terminate(Node Effect, Node Control) { |
| 307 | // TODO(eholk): this is almost certainly wrong |
| 308 | LOG(out << "Terminate(" << Effect << ", " << Control << ")" |
| 309 | << "\n"); |
| 310 | } |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 311 | Node Merge(uint32_t Count, Node *Controls) { |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 312 | LOG(out << "Merge(" << Count); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 313 | for (uint32_t i = 0; i < Count; ++i) { |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 314 | LOG(out << ", " << Controls[i]); |
| 315 | } |
| 316 | LOG(out << ") = "); |
| 317 | |
| 318 | auto *MergedNode = Func->makeNode(); |
| 319 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 320 | for (uint32_t i = 0; i < Count; ++i) { |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 321 | CfgNode *Control = Controls[i]; |
| 322 | Control->appendInst(InstBr::create(Func, MergedNode)); |
| 323 | } |
| 324 | LOG(out << (OperandNode)MergedNode << "\n"); |
| 325 | return OperandNode(MergedNode); |
| 326 | } |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 327 | Node Phi(wasm::LocalType, uint32_t Count, Node *Vals, Node Control) { |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 328 | LOG(out << "Phi(" << Count << ", " << Control); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 329 | for (uint32_t i = 0; i < Count; ++i) { |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 330 | LOG(out << ", " << Vals[i]); |
| 331 | } |
| 332 | LOG(out << ") = "); |
| 333 | |
| 334 | const auto &InEdges = Control.toCfgNode()->getInEdges(); |
| 335 | assert(Count == InEdges.size()); |
| 336 | |
| 337 | assert(Count > 0); |
| 338 | |
| 339 | auto *Dest = makeVariable(Vals[0].toOperand()->getType(), Control); |
| 340 | |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 341 | // Multiply by 200 in case more things get added later. |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 342 | |
| 343 | // TODO(eholk): find a better way besides multiplying by some arbitrary |
| 344 | // constant. |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 345 | auto *Phi = InstPhi::create(Func, Count * 200, Dest); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 346 | for (uint32_t i = 0; i < Count; ++i) { |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 347 | auto *Op = Vals[i].toOperand(); |
| 348 | assert(Op); |
| 349 | Phi->addArgument(Op, InEdges[i]); |
| 350 | } |
| 351 | setDefiningInst(Dest, Phi); |
| 352 | Control.toCfgNode()->appendInst(Phi); |
| 353 | LOG(out << Node(Dest) << "\n"); |
| 354 | return OperandNode(Dest); |
| 355 | } |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 356 | Node EffectPhi(uint32_t Count, Node *Effects, Node Control) { |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 357 | // TODO(eholk): this function is almost certainly wrong. |
| 358 | LOG(out << "EffectPhi(" << Count << ", " << Control << "):\n"); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 359 | for (uint32_t i = 0; i < Count; ++i) { |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 360 | LOG(out << " " << Effects[i] << "\n"); |
| 361 | } |
| 362 | return OperandNode(nullptr); |
| 363 | } |
| 364 | Node Int32Constant(int32_t Value) { |
| 365 | LOG(out << "Int32Constant(" << Value << ") = "); |
| 366 | auto *Const = Ctx->getConstantInt32(Value); |
| 367 | assert(Const); |
| 368 | assert(Control()); |
| 369 | LOG(out << Node(Const) << "\n"); |
| 370 | return OperandNode(Const); |
| 371 | } |
| 372 | Node Int64Constant(int64_t Value) { |
| 373 | LOG(out << "Int64Constant(" << Value << ") = "); |
| 374 | auto *Const = Ctx->getConstantInt64(Value); |
| 375 | assert(Const); |
| 376 | LOG(out << Node(Const) << "\n"); |
| 377 | return OperandNode(Const); |
| 378 | } |
| 379 | Node Float32Constant(float Value) { |
| 380 | LOG(out << "Float32Constant(" << Value << ") = "); |
| 381 | auto *Const = Ctx->getConstantFloat(Value); |
| 382 | assert(Const); |
| 383 | LOG(out << Node(Const) << "\n"); |
| 384 | return OperandNode(Const); |
| 385 | } |
| 386 | Node Float64Constant(double Value) { |
| 387 | LOG(out << "Float64Constant(" << Value << ") = "); |
| 388 | auto *Const = Ctx->getConstantDouble(Value); |
| 389 | assert(Const); |
| 390 | LOG(out << Node(Const) << "\n"); |
| 391 | return OperandNode(Const); |
| 392 | } |
| 393 | Node Binop(wasm::WasmOpcode Opcode, Node Left, Node Right) { |
| 394 | LOG(out << "Binop(" << WasmOpcodes::OpcodeName(Opcode) << ", " << Left |
| 395 | << ", " << Right << ") = "); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 396 | BooleanVariable *BoolDest = nullptr; |
| 397 | Variable *Dest = nullptr; |
| 398 | if (isComparison(Opcode)) { |
| 399 | BoolDest = makeVariable<BooleanVariable>(IceType_i32); |
| 400 | Dest = BoolDest; |
| 401 | } else { |
| 402 | Dest = makeVariable(Left.toOperand()->getType()); |
| 403 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 404 | switch (Opcode) { |
| 405 | case kExprI32Add: |
| 406 | case kExprI64Add: |
| 407 | Control()->appendInst( |
| 408 | InstArithmetic::create(Func, InstArithmetic::Add, Dest, Left, Right)); |
| 409 | break; |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 410 | case kExprF32Add: |
| 411 | case kExprF64Add: |
| 412 | Control()->appendInst(InstArithmetic::create(Func, InstArithmetic::Fadd, |
| 413 | Dest, Left, Right)); |
| 414 | break; |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 415 | case kExprI32Sub: |
| 416 | case kExprI64Sub: |
| 417 | Control()->appendInst( |
| 418 | InstArithmetic::create(Func, InstArithmetic::Sub, Dest, Left, Right)); |
| 419 | break; |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 420 | case kExprF32Sub: |
| 421 | case kExprF64Sub: |
| 422 | Control()->appendInst(InstArithmetic::create(Func, InstArithmetic::Fsub, |
| 423 | Dest, Left, Right)); |
| 424 | break; |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 425 | case kExprI32Mul: |
| 426 | case kExprI64Mul: |
| 427 | Control()->appendInst( |
| 428 | InstArithmetic::create(Func, InstArithmetic::Mul, Dest, Left, Right)); |
| 429 | break; |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 430 | case kExprF32Mul: |
| 431 | case kExprF64Mul: |
| 432 | Control()->appendInst(InstArithmetic::create(Func, InstArithmetic::Fmul, |
| 433 | Dest, Left, Right)); |
| 434 | break; |
| 435 | case kExprI32DivS: |
| 436 | case kExprI64DivS: |
| 437 | Control()->appendInst(InstArithmetic::create(Func, InstArithmetic::Sdiv, |
| 438 | Dest, Left, Right)); |
| 439 | break; |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 440 | case kExprI32DivU: |
| 441 | case kExprI64DivU: |
| 442 | Control()->appendInst(InstArithmetic::create(Func, InstArithmetic::Udiv, |
| 443 | Dest, Left, Right)); |
| 444 | break; |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 445 | case kExprF32Div: |
| 446 | case kExprF64Div: |
| 447 | Control()->appendInst(InstArithmetic::create(Func, InstArithmetic::Fdiv, |
| 448 | Dest, Left, Right)); |
| 449 | break; |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 450 | case kExprI32RemU: |
| 451 | case kExprI64RemU: |
| 452 | Control()->appendInst(InstArithmetic::create(Func, InstArithmetic::Urem, |
| 453 | Dest, Left, Right)); |
| 454 | break; |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 455 | case kExprI32RemS: |
| 456 | case kExprI64RemS: |
| 457 | Control()->appendInst(InstArithmetic::create(Func, InstArithmetic::Srem, |
| 458 | Dest, Left, Right)); |
| 459 | break; |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 460 | case kExprI32Ior: |
| 461 | case kExprI64Ior: |
| 462 | Control()->appendInst( |
| 463 | InstArithmetic::create(Func, InstArithmetic::Or, Dest, Left, Right)); |
| 464 | break; |
| 465 | case kExprI32Xor: |
| 466 | case kExprI64Xor: |
| 467 | Control()->appendInst( |
| 468 | InstArithmetic::create(Func, InstArithmetic::Xor, Dest, Left, Right)); |
| 469 | break; |
| 470 | case kExprI32Shl: |
| 471 | case kExprI64Shl: |
| 472 | Control()->appendInst( |
| 473 | InstArithmetic::create(Func, InstArithmetic::Shl, Dest, Left, Right)); |
| 474 | break; |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 475 | case kExprI32Rol: |
| 476 | case kExprI64Rol: { |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 477 | // TODO(eholk): add rotate as an ICE instruction to make it easier to take |
| 478 | // advantage of hardware support. |
| 479 | |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 480 | const auto DestTy = Left.toOperand()->getType(); |
| 481 | const SizeT BitCount = typeWidthInBytes(DestTy) * CHAR_BIT; |
| 482 | |
| 483 | auto *Masked = makeVariable(DestTy); |
| 484 | auto *Bottom = makeVariable(DestTy); |
| 485 | auto *Top = makeVariable(DestTy); |
| 486 | Control()->appendInst( |
| 487 | InstArithmetic::create(Func, InstArithmetic::And, Masked, Right, |
| 488 | Ctx->getConstantInt(DestTy, BitCount - 1))); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 489 | Control()->appendInst( |
| 490 | InstArithmetic::create(Func, InstArithmetic::Shl, Top, Left, Masked)); |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 491 | auto *RotShift = makeVariable(DestTy); |
| 492 | Control()->appendInst(InstArithmetic::create( |
| 493 | Func, InstArithmetic::Sub, RotShift, |
| 494 | Ctx->getConstantInt(DestTy, BitCount), Masked)); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 495 | Control()->appendInst(InstArithmetic::create(Func, InstArithmetic::Lshr, |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 496 | Bottom, Left, RotShift)); |
| 497 | Control()->appendInst( |
| 498 | InstArithmetic::create(Func, InstArithmetic::Or, Dest, Top, Bottom)); |
| 499 | break; |
| 500 | } |
| 501 | case kExprI32Ror: |
| 502 | case kExprI64Ror: { |
| 503 | // TODO(eholk): add rotate as an ICE instruction to make it easier to take |
| 504 | // advantage of hardware support. |
| 505 | |
| 506 | const auto DestTy = Left.toOperand()->getType(); |
| 507 | const SizeT BitCount = typeWidthInBytes(DestTy) * CHAR_BIT; |
| 508 | |
| 509 | auto *Masked = makeVariable(DestTy); |
| 510 | auto *Bottom = makeVariable(DestTy); |
| 511 | auto *Top = makeVariable(DestTy); |
| 512 | Control()->appendInst( |
| 513 | InstArithmetic::create(Func, InstArithmetic::And, Masked, Right, |
| 514 | Ctx->getConstantInt(DestTy, BitCount - 1))); |
| 515 | Control()->appendInst(InstArithmetic::create(Func, InstArithmetic::Lshr, |
| 516 | Top, Left, Masked)); |
| 517 | auto *RotShift = makeVariable(DestTy); |
| 518 | Control()->appendInst(InstArithmetic::create( |
| 519 | Func, InstArithmetic::Sub, RotShift, |
| 520 | Ctx->getConstantInt(DestTy, BitCount), Masked)); |
| 521 | Control()->appendInst(InstArithmetic::create(Func, InstArithmetic::Shl, |
| 522 | Bottom, Left, RotShift)); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 523 | Control()->appendInst( |
| 524 | InstArithmetic::create(Func, InstArithmetic::Or, Dest, Top, Bottom)); |
| 525 | break; |
| 526 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 527 | case kExprI32ShrU: |
| 528 | case kExprI64ShrU: |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 529 | Control()->appendInst(InstArithmetic::create(Func, InstArithmetic::Lshr, |
| 530 | Dest, Left, Right)); |
| 531 | break; |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 532 | case kExprI32ShrS: |
| 533 | case kExprI64ShrS: |
| 534 | Control()->appendInst(InstArithmetic::create(Func, InstArithmetic::Ashr, |
| 535 | Dest, Left, Right)); |
| 536 | break; |
| 537 | case kExprI32And: |
| 538 | case kExprI64And: |
| 539 | Control()->appendInst( |
| 540 | InstArithmetic::create(Func, InstArithmetic::And, Dest, Left, Right)); |
| 541 | break; |
| 542 | case kExprI32Ne: |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 543 | case kExprI64Ne: { |
| 544 | auto *TmpDest = makeVariable(IceType_i1); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 545 | Control()->appendInst( |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 546 | InstIcmp::create(Func, InstIcmp::Ne, TmpDest, Left, Right)); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 547 | BoolDest->setBoolSource(TmpDest); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 548 | Control()->appendInst( |
Eric Holk | 085bdae | 2016-04-18 15:08:19 -0700 | [diff] [blame] | 549 | InstCast::create(Func, InstCast::Zext, Dest, TmpDest)); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 550 | break; |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 551 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 552 | case kExprI32Eq: |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 553 | case kExprI64Eq: { |
| 554 | auto *TmpDest = makeVariable(IceType_i1); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 555 | Control()->appendInst( |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 556 | InstIcmp::create(Func, InstIcmp::Eq, TmpDest, Left, Right)); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 557 | BoolDest->setBoolSource(TmpDest); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 558 | Control()->appendInst( |
Eric Holk | 085bdae | 2016-04-18 15:08:19 -0700 | [diff] [blame] | 559 | InstCast::create(Func, InstCast::Zext, Dest, TmpDest)); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 560 | break; |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 561 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 562 | case kExprI32LtS: |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 563 | case kExprI64LtS: { |
| 564 | auto *TmpDest = makeVariable(IceType_i1); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 565 | Control()->appendInst( |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 566 | InstIcmp::create(Func, InstIcmp::Slt, TmpDest, Left, Right)); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 567 | BoolDest->setBoolSource(TmpDest); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 568 | Control()->appendInst( |
Eric Holk | 085bdae | 2016-04-18 15:08:19 -0700 | [diff] [blame] | 569 | InstCast::create(Func, InstCast::Zext, Dest, TmpDest)); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 570 | break; |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 571 | } |
| 572 | case kExprI32LeS: |
| 573 | case kExprI64LeS: { |
| 574 | auto *TmpDest = makeVariable(IceType_i1); |
| 575 | Control()->appendInst( |
| 576 | InstIcmp::create(Func, InstIcmp::Sle, TmpDest, Left, Right)); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 577 | BoolDest->setBoolSource(TmpDest); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 578 | Control()->appendInst( |
Eric Holk | 085bdae | 2016-04-18 15:08:19 -0700 | [diff] [blame] | 579 | InstCast::create(Func, InstCast::Zext, Dest, TmpDest)); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 580 | break; |
| 581 | } |
| 582 | case kExprI32GeU: |
| 583 | case kExprI64GeU: { |
| 584 | auto *TmpDest = makeVariable(IceType_i1); |
| 585 | Control()->appendInst( |
| 586 | InstIcmp::create(Func, InstIcmp::Uge, TmpDest, Left, Right)); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 587 | BoolDest->setBoolSource(TmpDest); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 588 | Control()->appendInst( |
Eric Holk | 085bdae | 2016-04-18 15:08:19 -0700 | [diff] [blame] | 589 | InstCast::create(Func, InstCast::Zext, Dest, TmpDest)); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 590 | break; |
| 591 | } |
| 592 | case kExprI32LeU: |
| 593 | case kExprI64LeU: { |
| 594 | auto *TmpDest = makeVariable(IceType_i1); |
| 595 | Control()->appendInst( |
| 596 | InstIcmp::create(Func, InstIcmp::Ule, TmpDest, Left, Right)); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 597 | BoolDest->setBoolSource(TmpDest); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 598 | Control()->appendInst( |
Eric Holk | 085bdae | 2016-04-18 15:08:19 -0700 | [diff] [blame] | 599 | InstCast::create(Func, InstCast::Zext, Dest, TmpDest)); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 600 | break; |
| 601 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 602 | case kExprI32LtU: |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 603 | case kExprI64LtU: { |
| 604 | auto *TmpDest = makeVariable(IceType_i1); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 605 | Control()->appendInst( |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 606 | InstIcmp::create(Func, InstIcmp::Ult, TmpDest, Left, Right)); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 607 | BoolDest->setBoolSource(TmpDest); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 608 | Control()->appendInst( |
Eric Holk | 085bdae | 2016-04-18 15:08:19 -0700 | [diff] [blame] | 609 | InstCast::create(Func, InstCast::Zext, Dest, TmpDest)); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 610 | break; |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 611 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 612 | case kExprI32GeS: |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 613 | case kExprI64GeS: { |
| 614 | auto *TmpDest = makeVariable(IceType_i1); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 615 | Control()->appendInst( |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 616 | InstIcmp::create(Func, InstIcmp::Sge, TmpDest, Left, Right)); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 617 | BoolDest->setBoolSource(TmpDest); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 618 | Control()->appendInst( |
Eric Holk | 085bdae | 2016-04-18 15:08:19 -0700 | [diff] [blame] | 619 | InstCast::create(Func, InstCast::Zext, Dest, TmpDest)); |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 620 | break; |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 621 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 622 | case kExprI32GtS: |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 623 | case kExprI64GtS: { |
| 624 | auto *TmpDest = makeVariable(IceType_i1); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 625 | Control()->appendInst( |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 626 | InstIcmp::create(Func, InstIcmp::Sgt, TmpDest, Left, Right)); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 627 | BoolDest->setBoolSource(TmpDest); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 628 | Control()->appendInst( |
Eric Holk | 085bdae | 2016-04-18 15:08:19 -0700 | [diff] [blame] | 629 | InstCast::create(Func, InstCast::Zext, Dest, TmpDest)); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 630 | break; |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 631 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 632 | case kExprI32GtU: |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 633 | case kExprI64GtU: { |
| 634 | auto *TmpDest = makeVariable(IceType_i1); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 635 | Control()->appendInst( |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 636 | InstIcmp::create(Func, InstIcmp::Ugt, TmpDest, Left, Right)); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 637 | BoolDest->setBoolSource(TmpDest); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 638 | Control()->appendInst( |
Eric Holk | 085bdae | 2016-04-18 15:08:19 -0700 | [diff] [blame] | 639 | InstCast::create(Func, InstCast::Zext, Dest, TmpDest)); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 640 | break; |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 641 | } |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 642 | case kExprF32Eq: |
| 643 | case kExprF64Eq: { |
| 644 | auto *TmpDest = makeVariable(IceType_i1); |
| 645 | Control()->appendInst( |
| 646 | InstFcmp::create(Func, InstFcmp::Ueq, TmpDest, Left, Right)); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 647 | BoolDest->setBoolSource(TmpDest); |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 648 | Control()->appendInst( |
| 649 | InstCast::create(Func, InstCast::Zext, Dest, TmpDest)); |
| 650 | break; |
| 651 | } |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 652 | case kExprF32Ne: |
| 653 | case kExprF64Ne: { |
| 654 | auto *TmpDest = makeVariable(IceType_i1); |
| 655 | Control()->appendInst( |
| 656 | InstFcmp::create(Func, InstFcmp::Une, TmpDest, Left, Right)); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 657 | BoolDest->setBoolSource(TmpDest); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 658 | Control()->appendInst( |
Eric Holk | 085bdae | 2016-04-18 15:08:19 -0700 | [diff] [blame] | 659 | InstCast::create(Func, InstCast::Zext, Dest, TmpDest)); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 660 | break; |
| 661 | } |
| 662 | case kExprF32Le: |
| 663 | case kExprF64Le: { |
| 664 | auto *TmpDest = makeVariable(IceType_i1); |
| 665 | Control()->appendInst( |
| 666 | InstFcmp::create(Func, InstFcmp::Ule, TmpDest, Left, Right)); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 667 | BoolDest->setBoolSource(TmpDest); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 668 | Control()->appendInst( |
Eric Holk | 085bdae | 2016-04-18 15:08:19 -0700 | [diff] [blame] | 669 | InstCast::create(Func, InstCast::Zext, Dest, TmpDest)); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 670 | break; |
| 671 | } |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 672 | case kExprF32Lt: |
| 673 | case kExprF64Lt: { |
| 674 | auto *TmpDest = makeVariable(IceType_i1); |
| 675 | Control()->appendInst( |
| 676 | InstFcmp::create(Func, InstFcmp::Ult, TmpDest, Left, Right)); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 677 | BoolDest->setBoolSource(TmpDest); |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 678 | Control()->appendInst( |
| 679 | InstCast::create(Func, InstCast::Zext, Dest, TmpDest)); |
| 680 | break; |
| 681 | } |
| 682 | case kExprF32Ge: |
| 683 | case kExprF64Ge: { |
| 684 | auto *TmpDest = makeVariable(IceType_i1); |
| 685 | Control()->appendInst( |
| 686 | InstFcmp::create(Func, InstFcmp::Uge, TmpDest, Left, Right)); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 687 | BoolDest->setBoolSource(TmpDest); |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 688 | Control()->appendInst( |
| 689 | InstCast::create(Func, InstCast::Zext, Dest, TmpDest)); |
| 690 | break; |
| 691 | } |
| 692 | case kExprF32Gt: |
| 693 | case kExprF64Gt: { |
| 694 | auto *TmpDest = makeVariable(IceType_i1); |
| 695 | Control()->appendInst( |
| 696 | InstFcmp::create(Func, InstFcmp::Ugt, TmpDest, Left, Right)); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 697 | BoolDest->setBoolSource(TmpDest); |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 698 | Control()->appendInst( |
| 699 | InstCast::create(Func, InstCast::Zext, Dest, TmpDest)); |
| 700 | break; |
| 701 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 702 | default: |
| 703 | LOG(out << "Unknown binop: " << WasmOpcodes::OpcodeName(Opcode) << "\n"); |
| 704 | llvm::report_fatal_error("Uncovered or invalid binop."); |
| 705 | return OperandNode(nullptr); |
| 706 | } |
| 707 | LOG(out << Dest << "\n"); |
| 708 | return OperandNode(Dest); |
| 709 | } |
| 710 | Node Unop(wasm::WasmOpcode Opcode, Node Input) { |
| 711 | LOG(out << "Unop(" << WasmOpcodes::OpcodeName(Opcode) << ", " << Input |
| 712 | << ") = "); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 713 | Variable *Dest = nullptr; |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 714 | switch (Opcode) { |
Eric Holk | 87def2c | 2016-04-29 14:42:17 -0700 | [diff] [blame] | 715 | // TODO (eholk): merge these next two cases using getConstantInteger |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 716 | case kExprI32Eqz: { |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 717 | auto *BoolDest = makeVariable<BooleanVariable>(IceType_i32); |
| 718 | Dest = BoolDest; |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 719 | auto *Tmp = makeVariable(IceType_i1); |
| 720 | Control()->appendInst(InstIcmp::create(Func, InstIcmp::Eq, Tmp, Input, |
| 721 | Ctx->getConstantInt32(0))); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 722 | BoolDest->setBoolSource(Tmp); |
Eric Holk | 085bdae | 2016-04-18 15:08:19 -0700 | [diff] [blame] | 723 | Control()->appendInst(InstCast::create(Func, InstCast::Zext, Dest, Tmp)); |
| 724 | break; |
| 725 | } |
| 726 | case kExprI64Eqz: { |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 727 | auto *BoolDest = makeVariable<BooleanVariable>(IceType_i32); |
| 728 | Dest = BoolDest; |
Eric Holk | 085bdae | 2016-04-18 15:08:19 -0700 | [diff] [blame] | 729 | auto *Tmp = makeVariable(IceType_i1); |
| 730 | Control()->appendInst(InstIcmp::create(Func, InstIcmp::Eq, Tmp, Input, |
| 731 | Ctx->getConstantInt64(0))); |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 732 | BoolDest->setBoolSource(Tmp); |
Eric Holk | 085bdae | 2016-04-18 15:08:19 -0700 | [diff] [blame] | 733 | Control()->appendInst(InstCast::create(Func, InstCast::Zext, Dest, Tmp)); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 734 | break; |
| 735 | } |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 736 | case kExprI32Ctz: { |
| 737 | Dest = makeVariable(IceType_i32); |
| 738 | const auto FnName = Ctx->getGlobalString("llvm.cttz.i32"); |
| 739 | bool BadInstrinsic = false; |
| 740 | const auto *Info = Ctx->getIntrinsicsInfo().find(FnName, BadInstrinsic); |
| 741 | assert(!BadInstrinsic); |
| 742 | assert(Info); |
| 743 | |
| 744 | auto *Call = InstIntrinsicCall::create( |
| 745 | Func, 1, Dest, Ctx->getConstantExternSym(FnName), Info->Info); |
| 746 | Call->addArg(Input); |
| 747 | Control()->appendInst(Call); |
| 748 | break; |
| 749 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 750 | case kExprF32Neg: { |
| 751 | Dest = makeVariable(IceType_f32); |
| 752 | Control()->appendInst(InstArithmetic::create( |
| 753 | Func, InstArithmetic::Fsub, Dest, Ctx->getConstantFloat(0), Input)); |
| 754 | break; |
| 755 | } |
| 756 | case kExprF64Neg: { |
| 757 | Dest = makeVariable(IceType_f64); |
| 758 | Control()->appendInst(InstArithmetic::create( |
| 759 | Func, InstArithmetic::Fsub, Dest, Ctx->getConstantDouble(0), Input)); |
| 760 | break; |
| 761 | } |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 762 | case kExprF32Abs: { |
| 763 | Dest = makeVariable(IceType_f32); |
| 764 | const auto FnName = Ctx->getGlobalString("llvm.fabs.f32"); |
| 765 | bool BadInstrinsic = false; |
| 766 | const auto *Info = Ctx->getIntrinsicsInfo().find(FnName, BadInstrinsic); |
| 767 | assert(!BadInstrinsic); |
| 768 | assert(Info); |
| 769 | |
| 770 | auto *Call = InstIntrinsicCall::create( |
| 771 | Func, 1, Dest, Ctx->getConstantExternSym(FnName), Info->Info); |
| 772 | Call->addArg(Input); |
| 773 | Control()->appendInst(Call); |
| 774 | break; |
| 775 | } |
| 776 | case kExprF64Abs: { |
| 777 | Dest = makeVariable(IceType_f64); |
| 778 | const auto FnName = Ctx->getGlobalString("llvm.fabs.f64"); |
| 779 | bool BadInstrinsic = false; |
| 780 | const auto *Info = Ctx->getIntrinsicsInfo().find(FnName, BadInstrinsic); |
| 781 | assert(!BadInstrinsic); |
| 782 | assert(Info); |
| 783 | |
| 784 | auto *Call = InstIntrinsicCall::create( |
| 785 | Func, 1, Dest, Ctx->getConstantExternSym(FnName), Info->Info); |
| 786 | Call->addArg(Input); |
| 787 | Control()->appendInst(Call); |
| 788 | break; |
| 789 | } |
| 790 | case kExprF32Floor: { |
| 791 | Dest = makeVariable(IceType_f64); |
| 792 | const auto FnName = Ctx->getGlobalString("env$$floor_f"); |
| 793 | constexpr bool HasTailCall = false; |
| 794 | |
| 795 | auto *Call = InstCall::create( |
| 796 | Func, 1, Dest, Ctx->getConstantExternSym(FnName), HasTailCall); |
| 797 | Call->addArg(Input); |
| 798 | Control()->appendInst(Call); |
| 799 | break; |
| 800 | } |
| 801 | case kExprF64Floor: { |
| 802 | Dest = makeVariable(IceType_f64); |
| 803 | const auto FnName = Ctx->getGlobalString("env$$floor_d"); |
| 804 | constexpr bool HasTailCall = false; |
| 805 | |
| 806 | auto *Call = InstCall::create( |
| 807 | Func, 1, Dest, Ctx->getConstantExternSym(FnName), HasTailCall); |
| 808 | Call->addArg(Input); |
| 809 | Control()->appendInst(Call); |
| 810 | break; |
| 811 | } |
Eric Holk | 87def2c | 2016-04-29 14:42:17 -0700 | [diff] [blame] | 812 | case kExprF32Sqrt: { |
| 813 | Dest = makeVariable(IceType_f32); |
| 814 | const auto FnName = Ctx->getGlobalString("llvm.sqrt.f32"); |
| 815 | bool BadInstrinsic = false; |
| 816 | const auto *Info = Ctx->getIntrinsicsInfo().find(FnName, BadInstrinsic); |
| 817 | assert(!BadInstrinsic); |
| 818 | assert(Info); |
| 819 | |
| 820 | auto *Call = InstIntrinsicCall::create( |
| 821 | Func, 1, Dest, Ctx->getConstantExternSym(FnName), Info->Info); |
| 822 | Call->addArg(Input); |
| 823 | Control()->appendInst(Call); |
| 824 | break; |
| 825 | } |
| 826 | case kExprF64Sqrt: { |
| 827 | Dest = makeVariable(IceType_f64); |
| 828 | const auto FnName = Ctx->getGlobalString("llvm.sqrt.f64"); |
| 829 | bool BadInstrinsic = false; |
| 830 | const auto *Info = Ctx->getIntrinsicsInfo().find(FnName, BadInstrinsic); |
| 831 | assert(!BadInstrinsic); |
| 832 | assert(Info); |
| 833 | |
| 834 | auto *Call = InstIntrinsicCall::create( |
| 835 | Func, 1, Dest, Ctx->getConstantExternSym(FnName), Info->Info); |
| 836 | Call->addArg(Input); |
| 837 | Control()->appendInst(Call); |
| 838 | break; |
| 839 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 840 | case kExprI64UConvertI32: |
| 841 | Dest = makeVariable(IceType_i64); |
| 842 | Control()->appendInst( |
| 843 | InstCast::create(Func, InstCast::Zext, Dest, Input)); |
| 844 | break; |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 845 | case kExprI64SConvertI32: |
| 846 | Dest = makeVariable(IceType_i64); |
| 847 | Control()->appendInst( |
| 848 | InstCast::create(Func, InstCast::Sext, Dest, Input)); |
| 849 | break; |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 850 | case kExprI32SConvertF32: |
| 851 | Dest = makeVariable(IceType_i32); |
| 852 | Control()->appendInst( |
| 853 | InstCast::create(Func, InstCast::Fptosi, Dest, Input)); |
| 854 | break; |
| 855 | case kExprI32UConvertF32: |
| 856 | Dest = makeVariable(IceType_i32); |
| 857 | Control()->appendInst( |
| 858 | InstCast::create(Func, InstCast::Fptoui, Dest, Input)); |
| 859 | break; |
| 860 | case kExprI32SConvertF64: |
| 861 | Dest = makeVariable(IceType_i32); |
| 862 | Control()->appendInst( |
| 863 | InstCast::create(Func, InstCast::Fptosi, Dest, Input)); |
| 864 | break; |
| 865 | case kExprI32UConvertF64: |
| 866 | Dest = makeVariable(IceType_i32); |
| 867 | Control()->appendInst( |
| 868 | InstCast::create(Func, InstCast::Fptoui, Dest, Input)); |
| 869 | break; |
| 870 | case kExprI32ReinterpretF32: |
| 871 | Dest = makeVariable(IceType_i32); |
| 872 | Control()->appendInst( |
| 873 | InstCast::create(Func, InstCast::Bitcast, Dest, Input)); |
| 874 | break; |
| 875 | case kExprI64ReinterpretF64: |
| 876 | Dest = makeVariable(IceType_i64); |
| 877 | Control()->appendInst( |
| 878 | InstCast::create(Func, InstCast::Bitcast, Dest, Input)); |
| 879 | break; |
| 880 | case kExprF64ReinterpretI64: |
| 881 | Dest = makeVariable(IceType_f64); |
| 882 | Control()->appendInst( |
| 883 | InstCast::create(Func, InstCast::Bitcast, Dest, Input)); |
| 884 | break; |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 885 | case kExprI32ConvertI64: |
| 886 | Dest = makeVariable(IceType_i32); |
| 887 | Control()->appendInst( |
| 888 | InstCast::create(Func, InstCast::Trunc, Dest, Input)); |
| 889 | break; |
| 890 | case kExprF64SConvertI32: |
| 891 | Dest = makeVariable(IceType_f64); |
| 892 | Control()->appendInst( |
| 893 | InstCast::create(Func, InstCast::Sitofp, Dest, Input)); |
| 894 | break; |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 895 | case kExprF64UConvertI32: |
| 896 | Dest = makeVariable(IceType_f64); |
| 897 | Control()->appendInst( |
| 898 | InstCast::create(Func, InstCast::Uitofp, Dest, Input)); |
| 899 | break; |
| 900 | case kExprF64ConvertF32: |
| 901 | Dest = makeVariable(IceType_f64); |
| 902 | Control()->appendInst( |
| 903 | InstCast::create(Func, InstCast::Fpext, Dest, Input)); |
| 904 | break; |
| 905 | case kExprF32SConvertI32: |
| 906 | Dest = makeVariable(IceType_f32); |
| 907 | Control()->appendInst( |
| 908 | InstCast::create(Func, InstCast::Sitofp, Dest, Input)); |
| 909 | break; |
| 910 | case kExprF32UConvertI32: |
| 911 | Dest = makeVariable(IceType_f32); |
| 912 | Control()->appendInst( |
| 913 | InstCast::create(Func, InstCast::Uitofp, Dest, Input)); |
| 914 | break; |
| 915 | case kExprF32ReinterpretI32: |
| 916 | Dest = makeVariable(IceType_f32); |
| 917 | Control()->appendInst( |
| 918 | InstCast::create(Func, InstCast::Bitcast, Dest, Input)); |
| 919 | break; |
| 920 | case kExprF32ConvertF64: |
| 921 | Dest = makeVariable(IceType_f32); |
| 922 | Control()->appendInst( |
| 923 | InstCast::create(Func, InstCast::Fptrunc, Dest, Input)); |
| 924 | break; |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 925 | default: |
| 926 | LOG(out << "Unknown unop: " << WasmOpcodes::OpcodeName(Opcode) << "\n"); |
| 927 | llvm::report_fatal_error("Uncovered or invalid unop."); |
| 928 | return OperandNode(nullptr); |
| 929 | } |
| 930 | LOG(out << Dest << "\n"); |
| 931 | return OperandNode(Dest); |
| 932 | } |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 933 | uint32_t InputCount(CfgNode *Node) const { return Node->getInEdges().size(); } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 934 | bool IsPhiWithMerge(Node Phi, Node Merge) const { |
| 935 | LOG(out << "IsPhiWithMerge(" << Phi << ", " << Merge << ")" |
| 936 | << "\n"); |
| 937 | if (Phi && Phi.isOperand()) { |
| 938 | LOG(out << " ...is operand" |
| 939 | << "\n"); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 940 | if (getDefiningInst(Phi)) { |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 941 | LOG(out << " ...has defining instruction" |
| 942 | << "\n"); |
| 943 | LOG(out << getDefNode(Phi) << "\n"); |
| 944 | LOG(out << " ..." << (getDefNode(Phi) == Merge) << "\n"); |
| 945 | return getDefNode(Phi) == Merge; |
| 946 | } |
| 947 | } |
| 948 | return false; |
| 949 | } |
| 950 | void AppendToMerge(CfgNode *Merge, CfgNode *From) const { |
| 951 | From->appendInst(InstBr::create(Func, Merge)); |
| 952 | } |
| 953 | void AppendToPhi(Node Merge, Node Phi, Node From) { |
| 954 | LOG(out << "AppendToPhi(" << Merge << ", " << Phi << ", " << From << ")" |
| 955 | << "\n"); |
| 956 | auto *Inst = getDefiningInst(Phi); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 957 | assert(Inst->getDest()->getType() == From.toOperand()->getType()); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 958 | Inst->addArgument(From, getDefNode(From)); |
| 959 | } |
| 960 | |
| 961 | //----------------------------------------------------------------------- |
| 962 | // Operations that read and/or write {control} and {effect}. |
| 963 | //----------------------------------------------------------------------- |
| 964 | Node Branch(Node Cond, Node *TrueNode, Node *FalseNode) { |
| 965 | // true_node and false_node appear to be out parameters. |
| 966 | LOG(out << "Branch(" << Cond << ", "); |
| 967 | |
| 968 | // save control here because true_node appears to alias control. |
| 969 | auto *Ctrl = Control(); |
| 970 | |
| 971 | *TrueNode = OperandNode(Func->makeNode()); |
| 972 | *FalseNode = OperandNode(Func->makeNode()); |
| 973 | |
| 974 | LOG(out << *TrueNode << ", " << *FalseNode << ")" |
| 975 | << "\n"); |
| 976 | |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 977 | auto *CondBool = Cond.toOperand()->asBoolean(); |
| 978 | if (CondBool == nullptr) { |
| 979 | CondBool = makeVariable(IceType_i1); |
| 980 | Ctrl->appendInst(InstIcmp::create(Func, InstIcmp::Ne, CondBool, Cond, |
| 981 | Ctx->getConstantInt32(0))); |
| 982 | } |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 983 | |
| 984 | Ctrl->appendInst(InstBr::create(Func, CondBool, *TrueNode, *FalseNode)); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 985 | return OperandNode(nullptr); |
| 986 | } |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 987 | InstSwitch *CurrentSwitch = nullptr; |
| 988 | CfgNode *SwitchNode = nullptr; |
| 989 | SizeT SwitchIndex = 0; |
| 990 | Node Switch(uint32_t Count, Node Key) { |
| 991 | LOG(out << "Switch(" << Count << ", " << Key << ")\n"); |
| 992 | |
| 993 | assert(!CurrentSwitch); |
| 994 | |
| 995 | auto *Default = Func->makeNode(); |
| 996 | // Count - 1 because the decoder counts the default label but Subzero does |
| 997 | // not. |
| 998 | CurrentSwitch = InstSwitch::create(Func, Count - 1, Key, Default); |
| 999 | SwitchIndex = 0; |
| 1000 | SwitchNode = Control(); |
| 1001 | // We don't actually append the switch to the CfgNode here because not all |
| 1002 | // the branches are ready. |
| 1003 | return Node(nullptr); |
| 1004 | } |
| 1005 | Node IfValue(int32_t Value, Node) { |
| 1006 | LOG(out << "IfValue(" << Value << ") [Index = " << SwitchIndex << "]\n"); |
| 1007 | assert(CurrentSwitch); |
| 1008 | auto *Target = Func->makeNode(); |
| 1009 | CurrentSwitch->addBranch(SwitchIndex++, Value, Target); |
| 1010 | return Node(Target); |
| 1011 | } |
| 1012 | Node IfDefault(Node) { |
| 1013 | LOG(out << "IfDefault(...) [Index = " << SwitchIndex << "]\n"); |
| 1014 | assert(CurrentSwitch); |
| 1015 | assert(CurrentSwitch->getLabelDefault()); |
| 1016 | // Now we append the switch, since this should be the last edge. |
| 1017 | assert(SwitchIndex == CurrentSwitch->getNumCases()); |
| 1018 | SwitchNode->appendInst(CurrentSwitch); |
| 1019 | SwitchNode = nullptr; |
| 1020 | auto Default = Node(CurrentSwitch->getLabelDefault()); |
| 1021 | CurrentSwitch = nullptr; |
| 1022 | return Default; |
| 1023 | } |
| 1024 | Node Return(uint32_t Count, Node *Vals) { |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1025 | assert(1 >= Count); |
| 1026 | LOG(out << "Return("); |
| 1027 | if (Count > 0) |
| 1028 | LOG(out << Vals[0]); |
| 1029 | LOG(out << ")" |
| 1030 | << "\n"); |
| 1031 | auto *Instr = |
| 1032 | 1 == Count ? InstRet::create(Func, Vals[0]) : InstRet::create(Func); |
| 1033 | Control()->appendInst(Instr); |
| 1034 | Control()->setHasReturn(); |
| 1035 | LOG(out << Node(nullptr) << "\n"); |
| 1036 | return OperandNode(nullptr); |
| 1037 | } |
| 1038 | Node ReturnVoid() { |
| 1039 | LOG(out << "ReturnVoid() = "); |
| 1040 | auto *Instr = InstRet::create(Func); |
| 1041 | Control()->appendInst(Instr); |
| 1042 | Control()->setHasReturn(); |
| 1043 | LOG(out << Node(nullptr) << "\n"); |
| 1044 | return OperandNode(nullptr); |
| 1045 | } |
| 1046 | Node Unreachable() { |
| 1047 | LOG(out << "Unreachable() = "); |
| 1048 | auto *Instr = InstUnreachable::create(Func); |
| 1049 | Control()->appendInst(Instr); |
| 1050 | LOG(out << Node(nullptr) << "\n"); |
| 1051 | return OperandNode(nullptr); |
| 1052 | } |
| 1053 | |
| 1054 | Node CallDirect(uint32_t Index, Node *Args) { |
| 1055 | LOG(out << "CallDirect(" << Index << ")" |
| 1056 | << "\n"); |
| 1057 | assert(Module->IsValidFunction(Index)); |
| 1058 | const auto *Module = this->Module->module; |
| 1059 | assert(Module); |
| 1060 | const auto &Target = Module->functions[Index]; |
| 1061 | const auto *Sig = Target.sig; |
| 1062 | assert(Sig); |
| 1063 | const auto NumArgs = Sig->parameter_count(); |
| 1064 | LOG(out << " number of args: " << NumArgs << "\n"); |
| 1065 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1066 | const auto TargetName = getFunctionName(Module, Index); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1067 | LOG(out << " target name: " << TargetName << "\n"); |
| 1068 | |
| 1069 | assert(Sig->return_count() <= 1); |
| 1070 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1071 | auto TargetOperand = |
| 1072 | Ctx->getConstantSym(0, Ctx->getGlobalString(TargetName)); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1073 | |
| 1074 | auto *Dest = Sig->return_count() > 0 |
| 1075 | ? makeVariable(toIceType(Sig->GetReturn())) |
| 1076 | : nullptr; |
| 1077 | auto *Call = InstCall::create(Func, NumArgs, Dest, TargetOperand, |
| 1078 | false /* HasTailCall */); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1079 | for (uint32_t i = 0; i < NumArgs; ++i) { |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1080 | // The builder reserves the first argument for the code object. |
| 1081 | LOG(out << " args[" << i << "] = " << Args[i + 1] << "\n"); |
| 1082 | Call->addArg(Args[i + 1]); |
| 1083 | } |
| 1084 | |
| 1085 | Control()->appendInst(Call); |
| 1086 | LOG(out << "Call Result = " << Node(Dest) << "\n"); |
| 1087 | return OperandNode(Dest); |
| 1088 | } |
| 1089 | Node CallImport(uint32_t Index, Node *Args) { |
| 1090 | LOG(out << "CallImport(" << Index << ")" |
| 1091 | << "\n"); |
| 1092 | const auto *Module = this->Module->module; |
| 1093 | assert(Module); |
| 1094 | const auto *Sig = this->Module->GetImportSignature(Index); |
| 1095 | assert(Sig); |
| 1096 | const auto NumArgs = Sig->parameter_count(); |
| 1097 | LOG(out << " number of args: " << NumArgs << "\n"); |
| 1098 | |
| 1099 | const auto &Target = Module->import_table[Index]; |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1100 | const auto ModuleName = toStdString( |
| 1101 | Module->GetName(Target.module_name_offset, Target.module_name_length)); |
| 1102 | const auto FnName = toStdString(Module->GetName( |
| 1103 | Target.function_name_offset, Target.function_name_length)); |
| 1104 | |
| 1105 | const auto TargetName = Ctx->getGlobalString(ModuleName + "$$" + FnName); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1106 | LOG(out << " target name: " << TargetName << "\n"); |
| 1107 | |
| 1108 | assert(Sig->return_count() <= 1); |
| 1109 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1110 | auto TargetOperand = Ctx->getConstantExternSym(TargetName); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1111 | |
| 1112 | auto *Dest = Sig->return_count() > 0 |
| 1113 | ? makeVariable(toIceType(Sig->GetReturn())) |
| 1114 | : nullptr; |
| 1115 | constexpr bool NoTailCall = false; |
| 1116 | auto *Call = |
| 1117 | InstCall::create(Func, NumArgs, Dest, TargetOperand, NoTailCall); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1118 | for (uint32_t i = 0; i < NumArgs; ++i) { |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1119 | // The builder reserves the first argument for the code object. |
| 1120 | LOG(out << " args[" << i << "] = " << Args[i + 1] << "\n"); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1121 | assert(Args[i + 1].toOperand()->getType() == toIceType(Sig->GetParam(i))); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1122 | Call->addArg(Args[i + 1]); |
| 1123 | } |
| 1124 | |
| 1125 | Control()->appendInst(Call); |
| 1126 | LOG(out << "Call Result = " << Node(Dest) << "\n"); |
| 1127 | return OperandNode(Dest); |
| 1128 | } |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1129 | Node CallIndirect(uint32_t SigIndex, Node *Args) { |
| 1130 | LOG(out << "CallIndirect(" << SigIndex << ")\n"); |
| 1131 | // TODO(eholk): Compile to something better than a switch. |
| 1132 | const auto *Module = this->Module->module; |
| 1133 | assert(Module); |
| 1134 | const auto &IndirectTable = Module->function_table; |
| 1135 | |
Eric Holk | 87def2c | 2016-04-29 14:42:17 -0700 | [diff] [blame] | 1136 | auto *Abort = getIndirectFailTarget(); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1137 | |
| 1138 | assert(Args[0].toOperand()); |
| 1139 | |
| 1140 | auto *Switch = InstSwitch::create(Func, IndirectTable.size(), |
| 1141 | Args[0].toOperand(), Abort); |
| 1142 | assert(Abort); |
| 1143 | |
| 1144 | const bool HasReturn = Module->signatures[SigIndex]->return_count() != 0; |
| 1145 | const Ice::Type DestTy = |
| 1146 | HasReturn ? toIceType(Module->signatures[SigIndex]->GetReturn()) |
| 1147 | : IceType_void; |
| 1148 | |
| 1149 | auto *Dest = HasReturn ? makeVariable(DestTy) : nullptr; |
| 1150 | |
| 1151 | auto *ExitNode = Func->makeNode(); |
| 1152 | auto *PhiInst = |
| 1153 | HasReturn ? InstPhi::create(Func, IndirectTable.size(), Dest) : nullptr; |
| 1154 | |
| 1155 | for (uint32_t Index = 0; Index < IndirectTable.size(); ++Index) { |
| 1156 | const auto &Target = Module->functions[IndirectTable[Index]]; |
| 1157 | |
| 1158 | if (SigIndex == Target.sig_index) { |
| 1159 | auto *CallNode = Func->makeNode(); |
| 1160 | auto *SavedControl = Control(); |
| 1161 | *ControlPtr = OperandNode(CallNode); |
| 1162 | auto *Tmp = CallDirect(Target.func_index, Args).toOperand(); |
| 1163 | *ControlPtr = OperandNode(SavedControl); |
| 1164 | if (PhiInst) { |
| 1165 | PhiInst->addArgument(Tmp, CallNode); |
| 1166 | } |
| 1167 | CallNode->appendInst(InstBr::create(Func, ExitNode)); |
| 1168 | Switch->addBranch(Index, Index, CallNode); |
| 1169 | } else { |
| 1170 | Switch->addBranch(Index, Index, Abort); |
| 1171 | } |
| 1172 | } |
| 1173 | |
| 1174 | if (PhiInst) { |
| 1175 | ExitNode->appendInst(PhiInst); |
| 1176 | } |
| 1177 | |
| 1178 | Control()->appendInst(Switch); |
| 1179 | *ControlPtr = OperandNode(ExitNode); |
| 1180 | return OperandNode(Dest); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1181 | } |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1182 | Node Invert(Node Node) { |
| 1183 | (void)Node; |
| 1184 | llvm::report_fatal_error("Invert"); |
| 1185 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1186 | |
| 1187 | //----------------------------------------------------------------------- |
| 1188 | // Operations that concern the linear memory. |
| 1189 | //----------------------------------------------------------------------- |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1190 | Node MemSize(uint32_t Offset) { |
| 1191 | (void)Offset; |
| 1192 | llvm::report_fatal_error("MemSize"); |
| 1193 | } |
| 1194 | Node LoadGlobal(uint32_t Index) { |
| 1195 | (void)Index; |
| 1196 | llvm::report_fatal_error("LoadGlobal"); |
| 1197 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1198 | Node StoreGlobal(uint32_t Index, Node Val) { |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1199 | (void)Index; |
| 1200 | (void)Val; |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1201 | llvm::report_fatal_error("StoreGlobal"); |
| 1202 | } |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1203 | |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1204 | Node LoadMem(wasm::LocalType Type, MachineType MemType, Node Index, |
| 1205 | uint32_t Offset) { |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 1206 | LOG(out << "LoadMem." << toIceType(MemType) << "(" << Index << "[" << Offset |
| 1207 | << "]) = "); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1208 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1209 | auto *RealAddr = sanitizeAddress(Index, Offset); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1210 | |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1211 | auto *LoadResult = makeVariable(toIceType(MemType)); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1212 | Control()->appendInst(InstLoad::create(Func, LoadResult, RealAddr)); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1213 | |
| 1214 | // and cast, if needed |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 1215 | Variable *Result = nullptr; |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1216 | if (toIceType(Type) != toIceType(MemType)) { |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1217 | auto DestType = toIceType(Type); |
| 1218 | Result = makeVariable(DestType); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1219 | // TODO(eholk): handle signs correctly. |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1220 | if (isScalarIntegerType(DestType)) { |
| 1221 | if (MemType.IsSigned()) { |
| 1222 | Control()->appendInst( |
| 1223 | InstCast::create(Func, InstCast::Sext, Result, LoadResult)); |
| 1224 | } else { |
| 1225 | Control()->appendInst( |
| 1226 | InstCast::create(Func, InstCast::Zext, Result, LoadResult)); |
| 1227 | } |
| 1228 | } else if (isScalarFloatingType(DestType)) { |
| 1229 | Control()->appendInst( |
| 1230 | InstCast::create(Func, InstCast::Sitofp, Result, LoadResult)); |
| 1231 | } else { |
| 1232 | llvm::report_fatal_error("Unsupported type for memory load"); |
| 1233 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1234 | } else { |
| 1235 | Result = LoadResult; |
| 1236 | } |
| 1237 | |
| 1238 | LOG(out << Result << "\n"); |
| 1239 | return OperandNode(Result); |
| 1240 | } |
| 1241 | void StoreMem(MachineType Type, Node Index, uint32_t Offset, Node Val) { |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 1242 | LOG(out << "StoreMem." << toIceType(Type) << "(" << Index << "[" << Offset |
| 1243 | << "] = " << Val << ")" |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1244 | << "\n"); |
| 1245 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1246 | auto *RealAddr = sanitizeAddress(Index, Offset); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1247 | |
| 1248 | // cast the value to the right type, if needed |
| 1249 | Operand *StoreVal = nullptr; |
| 1250 | if (toIceType(Type) != Val.toOperand()->getType()) { |
| 1251 | auto *LocalStoreVal = makeVariable(toIceType(Type)); |
| 1252 | Control()->appendInst( |
| 1253 | InstCast::create(Func, InstCast::Trunc, LocalStoreVal, Val)); |
| 1254 | StoreVal = LocalStoreVal; |
| 1255 | } else { |
| 1256 | StoreVal = Val; |
| 1257 | } |
| 1258 | |
| 1259 | // then store the memory |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1260 | Control()->appendInst(InstStore::create(Func, StoreVal, RealAddr)); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1261 | } |
| 1262 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1263 | static void PrintDebugName(OperandNode Node) { |
| 1264 | (void)Node; |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1265 | llvm::report_fatal_error("PrintDebugName"); |
| 1266 | } |
| 1267 | |
| 1268 | CfgNode *Control() { |
| 1269 | return ControlPtr ? ControlPtr->toCfgNode() : Func->getEntryNode(); |
| 1270 | } |
| 1271 | Node Effect() { return *EffectPtr; } |
| 1272 | |
| 1273 | void set_module(wasm::ModuleEnv *Module) { this->Module = Module; } |
| 1274 | |
| 1275 | void set_control_ptr(Node *Control) { this->ControlPtr = Control; } |
| 1276 | |
| 1277 | void set_effect_ptr(Node *Effect) { this->EffectPtr = Effect; } |
| 1278 | |
| 1279 | private: |
| 1280 | wasm::ModuleEnv *Module; |
| 1281 | Node *ControlPtr; |
| 1282 | Node *EffectPtr; |
| 1283 | |
| 1284 | class Cfg *Func; |
| 1285 | GlobalContext *Ctx; |
| 1286 | |
Eric Holk | 87def2c | 2016-04-29 14:42:17 -0700 | [diff] [blame] | 1287 | CfgNode *BoundsFailTarget = nullptr; |
| 1288 | CfgNode *IndirectFailTarget = nullptr; |
Eric Holk | 4aae81a | 2016-04-25 12:52:49 -0700 | [diff] [blame] | 1289 | |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1290 | SizeT NextArg = 0; |
| 1291 | |
| 1292 | CfgUnorderedMap<Operand *, InstPhi *> PhiMap; |
| 1293 | CfgUnorderedMap<Operand *, CfgNode *> DefNodeMap; |
| 1294 | |
Eric Holk | 179a55d | 2016-05-02 10:42:27 -0700 | [diff] [blame] | 1295 | Operand *WasmMemory = nullptr; |
| 1296 | |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1297 | InstPhi *getDefiningInst(Operand *Op) const { |
| 1298 | const auto &Iter = PhiMap.find(Op); |
| 1299 | if (Iter == PhiMap.end()) { |
| 1300 | return nullptr; |
| 1301 | } |
| 1302 | return Iter->second; |
| 1303 | } |
| 1304 | |
| 1305 | void setDefiningInst(Operand *Op, InstPhi *Phi) { |
| 1306 | LOG(out << "\n== setDefiningInst(" << Op << ", " << Phi << ") ==\n"); |
| 1307 | PhiMap.emplace(Op, Phi); |
| 1308 | } |
| 1309 | |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 1310 | template <typename T = Variable> T *makeVariable(Ice::Type Type) { |
| 1311 | return makeVariable<T>(Type, Control()); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1312 | } |
| 1313 | |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 1314 | template <typename T = Variable> |
| 1315 | T *makeVariable(Ice::Type Type, CfgNode *DefNode) { |
| 1316 | auto *Var = Func->makeVariable<T>(Type); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1317 | DefNodeMap.emplace(Var, DefNode); |
| 1318 | return Var; |
| 1319 | } |
| 1320 | |
| 1321 | CfgNode *getDefNode(Operand *Op) const { |
| 1322 | const auto &Iter = DefNodeMap.find(Op); |
| 1323 | if (Iter == DefNodeMap.end()) { |
| 1324 | return nullptr; |
| 1325 | } |
| 1326 | return Iter->second; |
| 1327 | } |
| 1328 | |
Eric Holk | 87def2c | 2016-04-29 14:42:17 -0700 | [diff] [blame] | 1329 | CfgNode *getBoundsFailTarget() { |
| 1330 | if (!BoundsFailTarget) { |
Eric Holk | 4aae81a | 2016-04-25 12:52:49 -0700 | [diff] [blame] | 1331 | // TODO (eholk): Move this node to the end of the CFG, or even better, |
| 1332 | // have only one abort block for the whole module. |
Eric Holk | 87def2c | 2016-04-29 14:42:17 -0700 | [diff] [blame] | 1333 | BoundsFailTarget = Func->makeNode(); |
| 1334 | BoundsFailTarget->appendInst(InstCall::create( |
| 1335 | Func, 0, nullptr, |
| 1336 | Ctx->getConstantExternSym(Ctx->getGlobalString("__Sz_bounds_fail")), |
| 1337 | false)); |
| 1338 | BoundsFailTarget->appendInst(InstUnreachable::create(Func)); |
Eric Holk | 4aae81a | 2016-04-25 12:52:49 -0700 | [diff] [blame] | 1339 | } |
| 1340 | |
Eric Holk | 87def2c | 2016-04-29 14:42:17 -0700 | [diff] [blame] | 1341 | return BoundsFailTarget; |
| 1342 | } |
| 1343 | CfgNode *getIndirectFailTarget() { |
| 1344 | if (!IndirectFailTarget) { |
| 1345 | // TODO (eholk): Move this node to the end of the CFG, or even better, |
| 1346 | // have only one abort block for the whole module. |
| 1347 | IndirectFailTarget = Func->makeNode(); |
| 1348 | IndirectFailTarget->appendInst(InstCall::create( |
| 1349 | Func, 0, nullptr, |
| 1350 | Ctx->getConstantExternSym(Ctx->getGlobalString("__Sz_indirect_fail")), |
| 1351 | false)); |
| 1352 | IndirectFailTarget->appendInst(InstUnreachable::create(Func)); |
| 1353 | } |
| 1354 | |
| 1355 | return IndirectFailTarget; |
Eric Holk | 4aae81a | 2016-04-25 12:52:49 -0700 | [diff] [blame] | 1356 | } |
| 1357 | |
Eric Holk | 179a55d | 2016-05-02 10:42:27 -0700 | [diff] [blame] | 1358 | Operand *getWasmMemory() { |
| 1359 | assert(WasmMemory != nullptr); |
| 1360 | return WasmMemory; |
| 1361 | } |
| 1362 | |
| 1363 | Operand *sanitizeAddress(Operand *Base, uint32_t Offset) { |
| 1364 | SizeT MemSize = Module->module->min_mem_pages * WASM_PAGE_SIZE; |
| 1365 | |
| 1366 | bool ConstZeroBase = false; |
| 1367 | |
| 1368 | // first, add the index and the offset together. |
| 1369 | if (auto *ConstBase = llvm::dyn_cast<ConstantInteger32>(Base)) { |
| 1370 | uint32_t RealOffset = Offset + ConstBase->getValue(); |
| 1371 | if (RealOffset >= MemSize) { |
| 1372 | // We've proven this will always be an out of bounds access, so insert |
| 1373 | // an unconditional trap. |
| 1374 | Control()->appendInst(InstUnreachable::create(Func)); |
| 1375 | // It doesn't matter what we return here, so return something that will |
| 1376 | // allow the rest of code generation to happen. |
| 1377 | // |
| 1378 | // We might be tempted to just abort translation here, but out of bounds |
| 1379 | // memory access is a runtime trap, not a compile error. |
| 1380 | return Ctx->getConstantZero(getPointerType()); |
| 1381 | } |
| 1382 | Base = Ctx->getConstantInt32(RealOffset); |
| 1383 | ConstZeroBase = (0 == RealOffset); |
| 1384 | } else if (0 != Offset) { |
| 1385 | auto *Addr = makeVariable(Ice::getPointerType()); |
| 1386 | auto *OffsetConstant = Ctx->getConstantInt32(Offset); |
| 1387 | Control()->appendInst(InstArithmetic::create(Func, InstArithmetic::Add, |
| 1388 | Addr, Base, OffsetConstant)); |
| 1389 | |
| 1390 | Base = Addr; |
| 1391 | } |
| 1392 | |
Eric Holk | 80ee5b3 | 2016-05-06 14:28:04 -0700 | [diff] [blame] | 1393 | // Do the bounds check if enabled |
| 1394 | if (getFlags().getWasmBoundsCheck() && |
| 1395 | !llvm::isa<ConstantInteger32>(Base)) { |
Eric Holk | 179a55d | 2016-05-02 10:42:27 -0700 | [diff] [blame] | 1396 | // TODO (eholk): creating a new basic block on every memory access is |
| 1397 | // terrible (see https://goo.gl/Zj7DTr). Try adding a new instruction that |
| 1398 | // encapsulates this "abort if false" pattern. |
| 1399 | auto *CheckPassed = Func->makeNode(); |
| 1400 | auto *CheckFailed = getBoundsFailTarget(); |
| 1401 | |
| 1402 | auto *Check = makeVariable(IceType_i1); |
| 1403 | Control()->appendInst(InstIcmp::create(Func, InstIcmp::Ult, Check, Base, |
| 1404 | Ctx->getConstantInt32(MemSize))); |
| 1405 | Control()->appendInst( |
| 1406 | InstBr::create(Func, Check, CheckPassed, CheckFailed)); |
| 1407 | |
| 1408 | *ControlPtr = OperandNode(CheckPassed); |
| 1409 | } |
| 1410 | |
| 1411 | Ice::Operand *RealAddr = nullptr; |
| 1412 | auto MemBase = getWasmMemory(); |
| 1413 | if (!ConstZeroBase) { |
| 1414 | auto RealAddrV = Func->makeVariable(Ice::getPointerType()); |
| 1415 | Control()->appendInst(InstArithmetic::create(Func, InstArithmetic::Add, |
| 1416 | RealAddrV, Base, MemBase)); |
| 1417 | |
| 1418 | RealAddr = RealAddrV; |
| 1419 | } else { |
| 1420 | RealAddr = MemBase; |
| 1421 | } |
| 1422 | return RealAddr; |
| 1423 | } |
| 1424 | |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1425 | template <typename F = std::function<void(Ostream &)>> void log(F Fn) const { |
| 1426 | if (BuildDefs::dump() && (getFlags().getVerbose() & IceV_Wasm)) { |
| 1427 | Fn(Ctx->getStrDump()); |
| 1428 | Ctx->getStrDump().flush(); |
| 1429 | } |
| 1430 | } |
| 1431 | }; |
| 1432 | |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1433 | std::unique_ptr<Cfg> WasmTranslator::translateFunction(Zone *Zone, |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1434 | FunctionBody &Body) { |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1435 | OstreamLocker L1(Ctx); |
| 1436 | auto Func = Cfg::create(Ctx, getNextSequenceNumber()); |
Eric Holk | 179a55d | 2016-05-02 10:42:27 -0700 | [diff] [blame] | 1437 | TimerMarker T(TimerStack::TT_wasmGenIce, Func.get()); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1438 | Ice::CfgLocalAllocatorScope L2(Func.get()); |
| 1439 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1440 | // TODO(eholk): parse the function signature... |
| 1441 | |
| 1442 | Func->setEntryNode(Func->makeNode()); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1443 | |
| 1444 | IceBuilder Builder(Func.get()); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1445 | SR_WasmDecoder<OperandNode, IceBuilder> Decoder(Zone, &Builder, Body); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1446 | |
| 1447 | LOG(out << getFlags().getDefaultGlobalPrefix() << "\n"); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1448 | Decoder.Decode(); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1449 | |
| 1450 | // We don't always know where the incoming branches are in phi nodes, so this |
| 1451 | // function finds them. |
| 1452 | Func->fixPhiNodes(); |
| 1453 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1454 | Func->computeInOutEdges(); |
| 1455 | |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1456 | return Func; |
| 1457 | } |
| 1458 | |
Eric Holk | 87def2c | 2016-04-29 14:42:17 -0700 | [diff] [blame] | 1459 | constexpr SizeT InitialBufferSize = 16 << 10; // 16KB |
Eric Holk | 29acb57 | 2016-04-22 09:34:41 -0700 | [diff] [blame] | 1460 | |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1461 | WasmTranslator::WasmTranslator(GlobalContext *Ctx) |
Eric Holk | 87def2c | 2016-04-29 14:42:17 -0700 | [diff] [blame] | 1462 | : Translator(Ctx), Buffer(InitialBufferSize) {} |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1463 | |
| 1464 | void WasmTranslator::translate( |
| 1465 | const std::string &IRFilename, |
| 1466 | std::unique_ptr<llvm::DataStreamer> InputStream) { |
Eric Holk | 179a55d | 2016-05-02 10:42:27 -0700 | [diff] [blame] | 1467 | TimerMarker T(TimerStack::TT_wasm, Ctx); |
| 1468 | |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1469 | LOG(out << "Initializing v8/wasm stuff..." |
| 1470 | << "\n"); |
| 1471 | Zone Zone; |
| 1472 | ZoneScope _(&Zone); |
| 1473 | |
Eric Holk | 87def2c | 2016-04-29 14:42:17 -0700 | [diff] [blame] | 1474 | SizeT BytesRead = 0; |
| 1475 | while (true) { |
| 1476 | BytesRead += |
| 1477 | InputStream->GetBytes(&Buffer[BytesRead], Buffer.size() - BytesRead); |
| 1478 | LOG(out << "Read " << BytesRead << " bytes" |
| 1479 | << "\n"); |
| 1480 | if (BytesRead < Buffer.size()) |
| 1481 | break; |
| 1482 | Buffer.resize(Buffer.size() * 2); |
| 1483 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1484 | |
| 1485 | LOG(out << "Decoding module " << IRFilename << "\n"); |
| 1486 | |
| 1487 | constexpr v8::internal::Isolate *NoIsolate = nullptr; |
Eric Holk | 87def2c | 2016-04-29 14:42:17 -0700 | [diff] [blame] | 1488 | auto Result = DecodeWasmModule(NoIsolate, &Zone, Buffer.data(), |
| 1489 | Buffer.data() + BytesRead, false, kWasmOrigin); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1490 | |
| 1491 | auto Module = Result.val; |
| 1492 | |
| 1493 | LOG(out << "Module info:" |
| 1494 | << "\n"); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1495 | LOG(out << " min_mem_pages: " << Module->min_mem_pages << "\n"); |
| 1496 | LOG(out << " max_mem_pages: " << Module->max_mem_pages << "\n"); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1497 | LOG(out << " number of globals: " << Module->globals.size() << "\n"); |
| 1498 | LOG(out << " number of signatures: " << Module->signatures.size() |
| 1499 | << "\n"); |
| 1500 | LOG(out << " number of functions: " << Module->functions.size() << "\n"); |
| 1501 | LOG(out << " number of data_segments: " << Module->data_segments.size() |
| 1502 | << "\n"); |
| 1503 | LOG(out << " function table size: " << Module->function_table.size() |
| 1504 | << "\n"); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1505 | LOG(out << " import table size: " << Module->import_table.size() |
| 1506 | << "\n"); |
| 1507 | LOG(out << " export table size: " << Module->export_table.size() |
| 1508 | << "\n"); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1509 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1510 | LOG(out << "\n" |
| 1511 | << "Data segment information:" |
| 1512 | << "\n"); |
| 1513 | uint32_t Id = 0; |
| 1514 | for (const auto Seg : Module->data_segments) { |
| 1515 | LOG(out << Id << ": (" << Seg.source_offset << ", " << Seg.source_size |
| 1516 | << ") => " << Seg.dest_addr); |
| 1517 | if (Seg.init) { |
| 1518 | LOG(out << " init\n"); |
| 1519 | } else { |
| 1520 | LOG(out << "\n"); |
| 1521 | } |
| 1522 | Id++; |
| 1523 | } |
| 1524 | |
| 1525 | LOG(out << "\n" |
| 1526 | << "Import information:" |
| 1527 | << "\n"); |
| 1528 | for (const auto Import : Module->import_table) { |
| 1529 | auto ModuleName = toStdString( |
| 1530 | Module->GetName(Import.module_name_offset, Import.module_name_length)); |
| 1531 | auto FnName = toStdString(Module->GetName(Import.function_name_offset, |
| 1532 | Import.function_name_length)); |
| 1533 | LOG(out << " " << Import.sig_index << ": " << ModuleName << "::" << FnName |
| 1534 | << "\n"); |
| 1535 | } |
| 1536 | |
| 1537 | LOG(out << "\n" |
| 1538 | << "Export information:" |
| 1539 | << "\n"); |
| 1540 | for (const auto Export : Module->export_table) { |
| 1541 | LOG(out << " " << Export.func_index << ": " |
| 1542 | << toStdString( |
| 1543 | Module->GetName(Export.name_offset, Export.name_length)) |
| 1544 | << " (" << Export.name_offset << ", " << Export.name_length << ")"); |
| 1545 | LOG(out << "\n"); |
| 1546 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1547 | |
| 1548 | LOG(out << "\n" |
| 1549 | << "Function information:" |
| 1550 | << "\n"); |
| 1551 | for (const auto F : Module->functions) { |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1552 | LOG(out << " " << F.func_index << ": " |
| 1553 | << toStdString(Module->GetName(F.name_offset, F.name_length)) |
| 1554 | << " (" << F.name_offset << ", " << F.name_length << ")"); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1555 | if (F.exported) |
| 1556 | LOG(out << " export"); |
| 1557 | if (F.external) |
| 1558 | LOG(out << " extern"); |
| 1559 | LOG(out << "\n"); |
| 1560 | } |
| 1561 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1562 | LOG(out << "\n" |
| 1563 | << "Indirect table:" |
| 1564 | << "\n"); |
| 1565 | for (uint32_t F : Module->function_table) { |
| 1566 | LOG(out << " " << F << ": " << getFunctionName(Module, F) << "\n"); |
| 1567 | } |
| 1568 | |
| 1569 | ModuleEnv ModuleEnv; |
| 1570 | ModuleEnv.module = Module; |
| 1571 | |
| 1572 | FunctionBody Body; |
| 1573 | Body.module = &ModuleEnv; |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1574 | |
| 1575 | LOG(out << "Translating " << IRFilename << "\n"); |
| 1576 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1577 | { |
| 1578 | unique_ptr<VariableDeclarationList> Globals = |
| 1579 | makeUnique<VariableDeclarationList>(); |
| 1580 | |
| 1581 | // Global variables, etc go here. |
| 1582 | auto *WasmMemory = VariableDeclaration::createExternal(Globals.get()); |
Eric Holk | 179a55d | 2016-05-02 10:42:27 -0700 | [diff] [blame] | 1583 | WasmMemory->setName(Ctx->getGlobalString("WASM_DATA_INIT")); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1584 | |
| 1585 | // Fill in the segments |
| 1586 | SizeT WritePtr = 0; |
| 1587 | for (const auto Seg : Module->data_segments) { |
| 1588 | // fill in gaps with zero. |
| 1589 | if (Seg.dest_addr > WritePtr) { |
| 1590 | WasmMemory->addInitializer(VariableDeclaration::ZeroInitializer::create( |
| 1591 | Globals.get(), Seg.dest_addr - WritePtr)); |
| 1592 | WritePtr = Seg.dest_addr; |
| 1593 | } |
| 1594 | |
| 1595 | // Add the data |
| 1596 | WasmMemory->addInitializer(VariableDeclaration::DataInitializer::create( |
| 1597 | Globals.get(), reinterpret_cast<const char *>(Module->module_start) + |
| 1598 | Seg.source_offset, |
| 1599 | Seg.source_size)); |
| 1600 | |
| 1601 | WritePtr += Seg.source_size; |
| 1602 | } |
| 1603 | |
Eric Holk | 4aae81a | 2016-04-25 12:52:49 -0700 | [diff] [blame] | 1604 | // Save the size of the initialized data in a global variable so the runtime |
| 1605 | // can use it to determine the initial heap break. |
| 1606 | auto *GlobalDataSize = VariableDeclaration::createExternal(Globals.get()); |
| 1607 | GlobalDataSize->setName(Ctx->getGlobalString("WASM_DATA_SIZE")); |
| 1608 | GlobalDataSize->addInitializer(VariableDeclaration::DataInitializer::create( |
| 1609 | Globals.get(), reinterpret_cast<const char *>(&WritePtr), |
| 1610 | sizeof(WritePtr))); |
| 1611 | |
Eric Holk | 4aae81a | 2016-04-25 12:52:49 -0700 | [diff] [blame] | 1612 | // Save the number of pages for the runtime |
| 1613 | auto *GlobalNumPages = VariableDeclaration::createExternal(Globals.get()); |
| 1614 | GlobalNumPages->setName(Ctx->getGlobalString("WASM_NUM_PAGES")); |
| 1615 | GlobalNumPages->addInitializer(VariableDeclaration::DataInitializer::create( |
| 1616 | Globals.get(), reinterpret_cast<const char *>(&Module->min_mem_pages), |
| 1617 | sizeof(Module->min_mem_pages))); |
| 1618 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1619 | Globals->push_back(WasmMemory); |
Eric Holk | 4aae81a | 2016-04-25 12:52:49 -0700 | [diff] [blame] | 1620 | Globals->push_back(GlobalDataSize); |
| 1621 | Globals->push_back(GlobalNumPages); |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1622 | |
| 1623 | lowerGlobals(std::move(Globals)); |
| 1624 | } |
| 1625 | |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1626 | // Translate each function. |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1627 | for (const auto Fn : Module->functions) { |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1628 | const auto FnName = getFunctionName(Module, Fn.func_index); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1629 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1630 | LOG(out << " " << Fn.func_index << ": " << FnName << "..."); |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1631 | |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1632 | Body.sig = Fn.sig; |
Eric Holk | 87def2c | 2016-04-29 14:42:17 -0700 | [diff] [blame] | 1633 | Body.base = Buffer.data(); |
| 1634 | Body.start = Buffer.data() + Fn.code_start_offset; |
| 1635 | Body.end = Buffer.data() + Fn.code_end_offset; |
Eric Holk | 67c7c41 | 2016-04-15 13:05:37 -0700 | [diff] [blame] | 1636 | |
Eric Holk | 179a55d | 2016-05-02 10:42:27 -0700 | [diff] [blame] | 1637 | std::unique_ptr<Cfg> Func = nullptr; |
| 1638 | { |
| 1639 | TimerMarker T_func(getContext(), FnName); |
| 1640 | Func = translateFunction(&Zone, Body); |
| 1641 | Func->setFunctionName(Ctx->getGlobalString(FnName)); |
| 1642 | } |
Eric Holk | 16f8061 | 2016-04-04 17:07:42 -0700 | [diff] [blame] | 1643 | Ctx->optQueueBlockingPush(makeUnique<CfgOptWorkItem>(std::move(Func))); |
| 1644 | LOG(out << "done.\n"); |
| 1645 | } |
| 1646 | |
| 1647 | return; |
| 1648 | } |
John Porto | 681f90f | 2016-04-05 06:20:50 -0700 | [diff] [blame] | 1649 | |
| 1650 | #endif // ALLOW_WASM |