Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 5 | #include "src/v8.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 7 | #include "src/bootstrapper.h" |
| 8 | #include "src/code-stubs.h" |
| 9 | #include "src/cpu-profiler.h" |
| 10 | #include "src/factory.h" |
| 11 | #include "src/gdb-jit.h" |
| 12 | #include "src/ic/handler-compiler.h" |
| 13 | #include "src/ic/ic.h" |
| 14 | #include "src/macro-assembler.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 15 | |
| 16 | namespace v8 { |
| 17 | namespace internal { |
| 18 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 19 | |
| 20 | CodeStubDescriptor::CodeStubDescriptor(CodeStub* stub) |
| 21 | : call_descriptor_(stub->GetCallInterfaceDescriptor()), |
| 22 | stack_parameter_count_(no_reg), |
| 23 | hint_stack_parameter_count_(-1), |
| 24 | function_mode_(NOT_JS_FUNCTION_STUB_MODE), |
| 25 | deoptimization_handler_(NULL), |
| 26 | handler_arguments_mode_(DONT_PASS_ARGUMENTS), |
| 27 | miss_handler_(), |
| 28 | has_miss_handler_(false) { |
| 29 | stub->InitializeDescriptor(this); |
| 30 | } |
| 31 | |
| 32 | |
| 33 | CodeStubDescriptor::CodeStubDescriptor(Isolate* isolate, uint32_t stub_key) |
| 34 | : stack_parameter_count_(no_reg), |
| 35 | hint_stack_parameter_count_(-1), |
| 36 | function_mode_(NOT_JS_FUNCTION_STUB_MODE), |
| 37 | deoptimization_handler_(NULL), |
| 38 | handler_arguments_mode_(DONT_PASS_ARGUMENTS), |
| 39 | miss_handler_(), |
| 40 | has_miss_handler_(false) { |
| 41 | CodeStub::InitializeDescriptor(isolate, stub_key, this); |
| 42 | } |
| 43 | |
| 44 | |
| 45 | void CodeStubDescriptor::Initialize(Address deoptimization_handler, |
| 46 | int hint_stack_parameter_count, |
| 47 | StubFunctionMode function_mode) { |
| 48 | deoptimization_handler_ = deoptimization_handler; |
| 49 | hint_stack_parameter_count_ = hint_stack_parameter_count; |
| 50 | function_mode_ = function_mode; |
| 51 | } |
| 52 | |
| 53 | |
| 54 | void CodeStubDescriptor::Initialize(Register stack_parameter_count, |
| 55 | Address deoptimization_handler, |
| 56 | int hint_stack_parameter_count, |
| 57 | StubFunctionMode function_mode, |
| 58 | HandlerArgumentsMode handler_mode) { |
| 59 | Initialize(deoptimization_handler, hint_stack_parameter_count, function_mode); |
| 60 | stack_parameter_count_ = stack_parameter_count; |
| 61 | handler_arguments_mode_ = handler_mode; |
| 62 | } |
| 63 | |
| 64 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 65 | bool CodeStub::FindCodeInCache(Code** code_out) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 66 | UnseededNumberDictionary* stubs = isolate()->heap()->code_stubs(); |
| 67 | int index = stubs->FindEntry(GetKey()); |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 68 | if (index != UnseededNumberDictionary::kNotFound) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 69 | *code_out = Code::cast(stubs->ValueAt(index)); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 70 | return true; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 71 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 72 | return false; |
| 73 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 74 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 75 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 76 | void CodeStub::RecordCodeGeneration(Handle<Code> code) { |
| 77 | IC::RegisterWeakMapDependency(code); |
| 78 | OStringStream os; |
| 79 | os << *this; |
| 80 | PROFILE(isolate(), CodeCreateEvent(Logger::STUB_TAG, *code, os.c_str())); |
| 81 | Counters* counters = isolate()->counters(); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 82 | counters->total_stubs_code_size()->Increment(code->instruction_size()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 83 | } |
| 84 | |
| 85 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 86 | Code::Kind CodeStub::GetCodeKind() const { |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 87 | return Code::STUB; |
| 88 | } |
| 89 | |
| 90 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 91 | Handle<Code> CodeStub::GetCodeCopy(const Code::FindAndReplacePattern& pattern) { |
| 92 | Handle<Code> ic = GetCode(); |
| 93 | ic = isolate()->factory()->CopyCode(ic); |
| 94 | ic->FindAndReplace(pattern); |
| 95 | RecordCodeGeneration(ic); |
| 96 | return ic; |
| 97 | } |
| 98 | |
| 99 | |
| 100 | Handle<Code> PlatformCodeStub::GenerateCode() { |
| 101 | Factory* factory = isolate()->factory(); |
| 102 | |
| 103 | // Generate the new code. |
| 104 | MacroAssembler masm(isolate(), NULL, 256); |
| 105 | |
| 106 | // TODO(yangguo) remove this once the code serializer handles code stubs. |
| 107 | if (FLAG_serialize_toplevel) masm.enable_serializer(); |
| 108 | |
| 109 | { |
| 110 | // Update the static counter each time a new code stub is generated. |
| 111 | isolate()->counters()->code_stubs()->Increment(); |
| 112 | |
| 113 | // Generate the code for the stub. |
| 114 | masm.set_generating_stub(true); |
| 115 | NoCurrentFrameScope scope(&masm); |
| 116 | Generate(&masm); |
| 117 | } |
| 118 | |
| 119 | // Create the code object. |
| 120 | CodeDesc desc; |
| 121 | masm.GetCode(&desc); |
| 122 | |
| 123 | // Copy the generated code into a heap object. |
| 124 | Code::Flags flags = Code::ComputeFlags( |
| 125 | GetCodeKind(), |
| 126 | GetICState(), |
| 127 | GetExtraICState(), |
| 128 | GetStubType()); |
| 129 | Handle<Code> new_object = factory->NewCode( |
| 130 | desc, flags, masm.CodeObject(), NeedsImmovableCode()); |
| 131 | return new_object; |
| 132 | } |
| 133 | |
| 134 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 135 | Handle<Code> CodeStub::GetCode() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 136 | Heap* heap = isolate()->heap(); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 137 | Code* code; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 138 | if (UseSpecialCache() ? FindCodeInSpecialCache(&code) |
| 139 | : FindCodeInCache(&code)) { |
| 140 | DCHECK(GetCodeKind() == code->kind()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 141 | return Handle<Code>(code); |
| 142 | } |
| 143 | |
| 144 | { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 145 | HandleScope scope(isolate()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 146 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 147 | Handle<Code> new_object = GenerateCode(); |
| 148 | new_object->set_stub_key(GetKey()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 149 | FinishCode(new_object); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 150 | RecordCodeGeneration(new_object); |
| 151 | |
| 152 | #ifdef ENABLE_DISASSEMBLER |
| 153 | if (FLAG_print_code_stubs) { |
| 154 | CodeTracer::Scope trace_scope(isolate()->GetCodeTracer()); |
| 155 | OFStream os(trace_scope.file()); |
| 156 | OStringStream name; |
| 157 | name << *this; |
| 158 | new_object->Disassemble(name.c_str(), os); |
| 159 | os << "\n"; |
| 160 | } |
| 161 | #endif |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 162 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 163 | if (UseSpecialCache()) { |
| 164 | AddToSpecialCache(new_object); |
| 165 | } else { |
| 166 | // Update the dictionary and the root in Heap. |
| 167 | Handle<UnseededNumberDictionary> dict = |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 168 | UnseededNumberDictionary::AtNumberPut( |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 169 | Handle<UnseededNumberDictionary>(heap->code_stubs()), |
| 170 | GetKey(), |
| 171 | new_object); |
| 172 | heap->public_set_code_stubs(*dict); |
| 173 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 174 | code = *new_object; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 175 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 176 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 177 | Activate(code); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 178 | DCHECK(!NeedsImmovableCode() || |
| 179 | heap->lo_space()->Contains(code) || |
| 180 | heap->code_space()->FirstPage()->Contains(code->address())); |
| 181 | return Handle<Code>(code, isolate()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 182 | } |
| 183 | |
| 184 | |
Andrei Popescu | 3100271 | 2010-02-23 13:46:05 +0000 | [diff] [blame] | 185 | const char* CodeStub::MajorName(CodeStub::Major major_key, |
| 186 | bool allow_unknown_keys) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 187 | switch (major_key) { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 188 | #define DEF_CASE(name) case name: return #name "Stub"; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 189 | CODE_STUB_LIST(DEF_CASE) |
| 190 | #undef DEF_CASE |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 191 | case NoCache: |
| 192 | return "<NoCache>Stub"; |
| 193 | case NUMBER_OF_IDS: |
| 194 | UNREACHABLE(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 195 | return NULL; |
| 196 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 197 | return NULL; |
| 198 | } |
| 199 | |
| 200 | |
| 201 | void CodeStub::PrintBaseName(OStream& os) const { // NOLINT |
| 202 | os << MajorName(MajorKey(), false); |
| 203 | } |
| 204 | |
| 205 | |
| 206 | void CodeStub::PrintName(OStream& os) const { // NOLINT |
| 207 | PrintBaseName(os); |
| 208 | PrintState(os); |
| 209 | } |
| 210 | |
| 211 | |
| 212 | void CodeStub::Dispatch(Isolate* isolate, uint32_t key, void** value_out, |
| 213 | DispatchedCall call) { |
| 214 | switch (MajorKeyFromKey(key)) { |
| 215 | #define DEF_CASE(NAME) \ |
| 216 | case NAME: { \ |
| 217 | NAME##Stub stub(key, isolate); \ |
| 218 | CodeStub* pstub = &stub; \ |
| 219 | call(pstub, value_out); \ |
| 220 | break; \ |
| 221 | } |
| 222 | CODE_STUB_LIST(DEF_CASE) |
| 223 | #undef DEF_CASE |
| 224 | case NUMBER_OF_IDS: |
| 225 | UNREACHABLE(); |
| 226 | case NoCache: |
| 227 | *value_out = NULL; |
| 228 | break; |
| 229 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 230 | } |
| 231 | |
| 232 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 233 | static void InitializeDescriptorDispatchedCall(CodeStub* stub, |
| 234 | void** value_out) { |
| 235 | CodeStubDescriptor* descriptor_out = |
| 236 | reinterpret_cast<CodeStubDescriptor*>(value_out); |
| 237 | stub->InitializeDescriptor(descriptor_out); |
| 238 | descriptor_out->set_call_descriptor(stub->GetCallInterfaceDescriptor()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 239 | } |
| 240 | |
| 241 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 242 | void CodeStub::InitializeDescriptor(Isolate* isolate, uint32_t key, |
| 243 | CodeStubDescriptor* desc) { |
| 244 | void** value_out = reinterpret_cast<void**>(desc); |
| 245 | Dispatch(isolate, key, value_out, &InitializeDescriptorDispatchedCall); |
| 246 | } |
| 247 | |
| 248 | |
| 249 | void CodeStub::GetCodeDispatchCall(CodeStub* stub, void** value_out) { |
| 250 | Handle<Code>* code_out = reinterpret_cast<Handle<Code>*>(value_out); |
| 251 | // Code stubs with special cache cannot be recreated from stub key. |
| 252 | *code_out = stub->UseSpecialCache() ? Handle<Code>() : stub->GetCode(); |
| 253 | } |
| 254 | |
| 255 | |
| 256 | MaybeHandle<Code> CodeStub::GetCode(Isolate* isolate, uint32_t key) { |
| 257 | HandleScope scope(isolate); |
| 258 | Handle<Code> code; |
| 259 | void** value_out = reinterpret_cast<void**>(&code); |
| 260 | Dispatch(isolate, key, value_out, &GetCodeDispatchCall); |
| 261 | return scope.CloseAndEscape(code); |
| 262 | } |
| 263 | |
| 264 | |
| 265 | // static |
| 266 | void BinaryOpICStub::GenerateAheadOfTime(Isolate* isolate) { |
| 267 | // Generate the uninitialized versions of the stub. |
| 268 | for (int op = Token::BIT_OR; op <= Token::MOD; ++op) { |
| 269 | for (int mode = NO_OVERWRITE; mode <= OVERWRITE_RIGHT; ++mode) { |
| 270 | BinaryOpICStub stub(isolate, |
| 271 | static_cast<Token::Value>(op), |
| 272 | static_cast<OverwriteMode>(mode)); |
| 273 | stub.GetCode(); |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | // Generate special versions of the stub. |
| 278 | BinaryOpICState::GenerateAheadOfTime(isolate, &GenerateAheadOfTime); |
| 279 | } |
| 280 | |
| 281 | |
| 282 | void BinaryOpICStub::PrintState(OStream& os) const { // NOLINT |
| 283 | os << state(); |
| 284 | } |
| 285 | |
| 286 | |
| 287 | // static |
| 288 | void BinaryOpICStub::GenerateAheadOfTime(Isolate* isolate, |
| 289 | const BinaryOpICState& state) { |
| 290 | BinaryOpICStub stub(isolate, state); |
| 291 | stub.GetCode(); |
| 292 | } |
| 293 | |
| 294 | |
| 295 | // static |
| 296 | void BinaryOpICWithAllocationSiteStub::GenerateAheadOfTime(Isolate* isolate) { |
| 297 | // Generate special versions of the stub. |
| 298 | BinaryOpICState::GenerateAheadOfTime(isolate, &GenerateAheadOfTime); |
| 299 | } |
| 300 | |
| 301 | |
| 302 | void BinaryOpICWithAllocationSiteStub::PrintState( |
| 303 | OStream& os) const { // NOLINT |
| 304 | os << state(); |
| 305 | } |
| 306 | |
| 307 | |
| 308 | // static |
| 309 | void BinaryOpICWithAllocationSiteStub::GenerateAheadOfTime( |
| 310 | Isolate* isolate, const BinaryOpICState& state) { |
| 311 | if (state.CouldCreateAllocationMementos()) { |
| 312 | BinaryOpICWithAllocationSiteStub stub(isolate, state); |
| 313 | stub.GetCode(); |
| 314 | } |
| 315 | } |
| 316 | |
| 317 | |
| 318 | void StringAddStub::PrintBaseName(OStream& os) const { // NOLINT |
| 319 | os << "StringAddStub"; |
| 320 | if ((flags() & STRING_ADD_CHECK_BOTH) == STRING_ADD_CHECK_BOTH) { |
| 321 | os << "_CheckBoth"; |
| 322 | } else if ((flags() & STRING_ADD_CHECK_LEFT) == STRING_ADD_CHECK_LEFT) { |
| 323 | os << "_CheckLeft"; |
| 324 | } else if ((flags() & STRING_ADD_CHECK_RIGHT) == STRING_ADD_CHECK_RIGHT) { |
| 325 | os << "_CheckRight"; |
| 326 | } |
| 327 | if (pretenure_flag() == TENURED) { |
| 328 | os << "_Tenured"; |
| 329 | } |
| 330 | } |
| 331 | |
| 332 | |
| 333 | InlineCacheState CompareICStub::GetICState() const { |
| 334 | CompareICState::State state = Max(left(), right()); |
| 335 | switch (state) { |
| 336 | case CompareICState::UNINITIALIZED: |
| 337 | return ::v8::internal::UNINITIALIZED; |
| 338 | case CompareICState::SMI: |
| 339 | case CompareICState::NUMBER: |
| 340 | case CompareICState::INTERNALIZED_STRING: |
| 341 | case CompareICState::STRING: |
| 342 | case CompareICState::UNIQUE_NAME: |
| 343 | case CompareICState::OBJECT: |
| 344 | case CompareICState::KNOWN_OBJECT: |
| 345 | return MONOMORPHIC; |
| 346 | case CompareICState::GENERIC: |
| 347 | return ::v8::internal::GENERIC; |
| 348 | } |
| 349 | UNREACHABLE(); |
| 350 | return ::v8::internal::UNINITIALIZED; |
| 351 | } |
| 352 | |
| 353 | |
| 354 | Condition CompareICStub::GetCondition() const { |
| 355 | return CompareIC::ComputeCondition(op()); |
| 356 | } |
| 357 | |
| 358 | |
| 359 | void CompareICStub::AddToSpecialCache(Handle<Code> new_object) { |
| 360 | DCHECK(*known_map_ != NULL); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 361 | Isolate* isolate = new_object->GetIsolate(); |
| 362 | Factory* factory = isolate->factory(); |
| 363 | return Map::UpdateCodeCache(known_map_, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 364 | strict() ? |
| 365 | factory->strict_compare_ic_string() : |
| 366 | factory->compare_ic_string(), |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 367 | new_object); |
| 368 | } |
| 369 | |
| 370 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 371 | bool CompareICStub::FindCodeInSpecialCache(Code** code_out) { |
| 372 | Factory* factory = isolate()->factory(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 373 | Code::Flags flags = Code::ComputeFlags( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 374 | GetCodeKind(), |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 375 | UNINITIALIZED); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 376 | DCHECK(op() == Token::EQ || op() == Token::EQ_STRICT); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 377 | Handle<Object> probe( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 378 | known_map_->FindInCodeCache( |
| 379 | strict() ? |
| 380 | *factory->strict_compare_ic_string() : |
| 381 | *factory->compare_ic_string(), |
| 382 | flags), |
| 383 | isolate()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 384 | if (probe->IsCode()) { |
| 385 | *code_out = Code::cast(*probe); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 386 | #ifdef DEBUG |
| 387 | CompareICStub decode((*code_out)->stub_key(), isolate()); |
| 388 | DCHECK(op() == decode.op()); |
| 389 | DCHECK(left() == decode.left()); |
| 390 | DCHECK(right() == decode.right()); |
| 391 | DCHECK(state() == decode.state()); |
| 392 | #endif |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 393 | return true; |
| 394 | } |
| 395 | return false; |
| 396 | } |
| 397 | |
| 398 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 399 | void CompareICStub::Generate(MacroAssembler* masm) { |
| 400 | switch (state()) { |
| 401 | case CompareICState::UNINITIALIZED: |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 402 | GenerateMiss(masm); |
| 403 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 404 | case CompareICState::SMI: |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 405 | GenerateSmis(masm); |
| 406 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 407 | case CompareICState::NUMBER: |
| 408 | GenerateNumbers(masm); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 409 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 410 | case CompareICState::STRING: |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 411 | GenerateStrings(masm); |
| 412 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 413 | case CompareICState::INTERNALIZED_STRING: |
| 414 | GenerateInternalizedStrings(masm); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 415 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 416 | case CompareICState::UNIQUE_NAME: |
| 417 | GenerateUniqueNames(masm); |
| 418 | break; |
| 419 | case CompareICState::OBJECT: |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 420 | GenerateObjects(masm); |
| 421 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 422 | case CompareICState::KNOWN_OBJECT: |
| 423 | DCHECK(*known_map_ != NULL); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 424 | GenerateKnownObjects(masm); |
| 425 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 426 | case CompareICState::GENERIC: |
| 427 | GenerateGeneric(masm); |
| 428 | break; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 429 | } |
| 430 | } |
| 431 | |
| 432 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 433 | void CompareNilICStub::UpdateStatus(Handle<Object> object) { |
| 434 | State state = this->state(); |
| 435 | DCHECK(!state.Contains(GENERIC)); |
| 436 | State old_state = state; |
| 437 | if (object->IsNull()) { |
| 438 | state.Add(NULL_TYPE); |
| 439 | } else if (object->IsUndefined()) { |
| 440 | state.Add(UNDEFINED); |
| 441 | } else if (object->IsUndetectableObject() || |
| 442 | object->IsOddball() || |
| 443 | !object->IsHeapObject()) { |
| 444 | state.RemoveAll(); |
| 445 | state.Add(GENERIC); |
| 446 | } else if (IsMonomorphic()) { |
| 447 | state.RemoveAll(); |
| 448 | state.Add(GENERIC); |
| 449 | } else { |
| 450 | state.Add(MONOMORPHIC_MAP); |
| 451 | } |
| 452 | TraceTransition(old_state, state); |
| 453 | set_sub_minor_key(TypesBits::update(sub_minor_key(), state.ToIntegral())); |
| 454 | } |
| 455 | |
| 456 | |
| 457 | template<class StateType> |
| 458 | void HydrogenCodeStub::TraceTransition(StateType from, StateType to) { |
| 459 | // Note: Although a no-op transition is semantically OK, it is hinting at a |
| 460 | // bug somewhere in our state transition machinery. |
| 461 | DCHECK(from != to); |
| 462 | if (!FLAG_trace_ic) return; |
| 463 | OFStream os(stdout); |
| 464 | os << "["; |
| 465 | PrintBaseName(os); |
| 466 | os << ": " << from << "=>" << to << "]" << endl; |
| 467 | } |
| 468 | |
| 469 | |
| 470 | void CompareNilICStub::PrintBaseName(OStream& os) const { // NOLINT |
| 471 | CodeStub::PrintBaseName(os); |
| 472 | os << ((nil_value() == kNullValue) ? "(NullValue)" : "(UndefinedValue)"); |
| 473 | } |
| 474 | |
| 475 | |
| 476 | void CompareNilICStub::PrintState(OStream& os) const { // NOLINT |
| 477 | os << state(); |
| 478 | } |
| 479 | |
| 480 | |
| 481 | // TODO(svenpanne) Make this a real infix_ostream_iterator. |
| 482 | class SimpleListPrinter { |
| 483 | public: |
| 484 | explicit SimpleListPrinter(OStream& os) : os_(os), first_(true) {} |
| 485 | |
| 486 | void Add(const char* s) { |
| 487 | if (first_) { |
| 488 | first_ = false; |
| 489 | } else { |
| 490 | os_ << ","; |
| 491 | } |
| 492 | os_ << s; |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 493 | } |
| 494 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 495 | private: |
| 496 | OStream& os_; |
| 497 | bool first_; |
| 498 | }; |
| 499 | |
| 500 | |
| 501 | OStream& operator<<(OStream& os, const CompareNilICStub::State& s) { |
| 502 | os << "("; |
| 503 | SimpleListPrinter p(os); |
| 504 | if (s.IsEmpty()) p.Add("None"); |
| 505 | if (s.Contains(CompareNilICStub::UNDEFINED)) p.Add("Undefined"); |
| 506 | if (s.Contains(CompareNilICStub::NULL_TYPE)) p.Add("Null"); |
| 507 | if (s.Contains(CompareNilICStub::MONOMORPHIC_MAP)) p.Add("MonomorphicMap"); |
| 508 | if (s.Contains(CompareNilICStub::GENERIC)) p.Add("Generic"); |
| 509 | return os << ")"; |
| 510 | } |
| 511 | |
| 512 | |
| 513 | Type* CompareNilICStub::GetType(Zone* zone, Handle<Map> map) { |
| 514 | State state = this->state(); |
| 515 | if (state.Contains(CompareNilICStub::GENERIC)) return Type::Any(zone); |
| 516 | |
| 517 | Type* result = Type::None(zone); |
| 518 | if (state.Contains(CompareNilICStub::UNDEFINED)) { |
| 519 | result = Type::Union(result, Type::Undefined(zone), zone); |
| 520 | } |
| 521 | if (state.Contains(CompareNilICStub::NULL_TYPE)) { |
| 522 | result = Type::Union(result, Type::Null(zone), zone); |
| 523 | } |
| 524 | if (state.Contains(CompareNilICStub::MONOMORPHIC_MAP)) { |
| 525 | Type* type = |
| 526 | map.is_null() ? Type::Detectable(zone) : Type::Class(map, zone); |
| 527 | result = Type::Union(result, type, zone); |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 528 | } |
| 529 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 530 | return result; |
| 531 | } |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 532 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 533 | |
| 534 | Type* CompareNilICStub::GetInputType(Zone* zone, Handle<Map> map) { |
| 535 | Type* output_type = GetType(zone, map); |
| 536 | Type* nil_type = |
| 537 | nil_value() == kNullValue ? Type::Null(zone) : Type::Undefined(zone); |
| 538 | return Type::Union(output_type, nil_type, zone); |
| 539 | } |
| 540 | |
| 541 | |
| 542 | void CallIC_ArrayStub::PrintState(OStream& os) const { // NOLINT |
| 543 | os << state() << " (Array)"; |
| 544 | } |
| 545 | |
| 546 | |
| 547 | void CallICStub::PrintState(OStream& os) const { // NOLINT |
| 548 | os << state(); |
| 549 | } |
| 550 | |
| 551 | |
| 552 | void InstanceofStub::PrintName(OStream& os) const { // NOLINT |
| 553 | os << "InstanceofStub"; |
| 554 | if (HasArgsInRegisters()) os << "_REGS"; |
| 555 | if (HasCallSiteInlineCheck()) os << "_INLINE"; |
| 556 | if (ReturnTrueFalseObject()) os << "_TRUEFALSE"; |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 557 | } |
| 558 | |
| 559 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 560 | void JSEntryStub::FinishCode(Handle<Code> code) { |
| 561 | Handle<FixedArray> handler_table = |
| 562 | code->GetIsolate()->factory()->NewFixedArray(1, TENURED); |
| 563 | handler_table->set(0, Smi::FromInt(handler_offset_)); |
| 564 | code->set_handler_table(*handler_table); |
| 565 | } |
| 566 | |
| 567 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 568 | void LoadFastElementStub::InitializeDescriptor(CodeStubDescriptor* descriptor) { |
| 569 | descriptor->Initialize(FUNCTION_ADDR(KeyedLoadIC_MissFromStubFailure)); |
| 570 | } |
| 571 | |
| 572 | |
| 573 | void LoadDictionaryElementStub::InitializeDescriptor( |
| 574 | CodeStubDescriptor* descriptor) { |
| 575 | descriptor->Initialize(FUNCTION_ADDR(KeyedLoadIC_MissFromStubFailure)); |
| 576 | } |
| 577 | |
| 578 | |
| 579 | void KeyedLoadGenericStub::InitializeDescriptor( |
| 580 | CodeStubDescriptor* descriptor) { |
| 581 | descriptor->Initialize( |
| 582 | Runtime::FunctionForId(Runtime::kKeyedGetProperty)->entry); |
| 583 | } |
| 584 | |
| 585 | |
| 586 | void HandlerStub::InitializeDescriptor(CodeStubDescriptor* descriptor) { |
| 587 | if (kind() == Code::STORE_IC) { |
| 588 | descriptor->Initialize(FUNCTION_ADDR(StoreIC_MissFromStubFailure)); |
| 589 | } else if (kind() == Code::KEYED_LOAD_IC) { |
| 590 | descriptor->Initialize(FUNCTION_ADDR(KeyedLoadIC_MissFromStubFailure)); |
| 591 | } |
| 592 | } |
| 593 | |
| 594 | |
| 595 | CallInterfaceDescriptor HandlerStub::GetCallInterfaceDescriptor() { |
| 596 | if (kind() == Code::LOAD_IC || kind() == Code::KEYED_LOAD_IC) { |
| 597 | return LoadDescriptor(isolate()); |
| 598 | } else { |
| 599 | DCHECK_EQ(Code::STORE_IC, kind()); |
| 600 | return StoreDescriptor(isolate()); |
| 601 | } |
| 602 | } |
| 603 | |
| 604 | |
| 605 | void StoreFastElementStub::InitializeDescriptor( |
| 606 | CodeStubDescriptor* descriptor) { |
| 607 | descriptor->Initialize(FUNCTION_ADDR(KeyedStoreIC_MissFromStubFailure)); |
| 608 | } |
| 609 | |
| 610 | |
| 611 | void ElementsTransitionAndStoreStub::InitializeDescriptor( |
| 612 | CodeStubDescriptor* descriptor) { |
| 613 | descriptor->Initialize(FUNCTION_ADDR(ElementsTransitionAndStoreIC_Miss)); |
| 614 | } |
| 615 | |
| 616 | |
| 617 | static void InitializeVectorLoadStub(Isolate* isolate, |
| 618 | CodeStubDescriptor* descriptor, |
| 619 | Address deoptimization_handler) { |
| 620 | DCHECK(FLAG_vector_ics); |
| 621 | descriptor->Initialize(deoptimization_handler); |
| 622 | } |
| 623 | |
| 624 | |
| 625 | void VectorLoadStub::InitializeDescriptor(CodeStubDescriptor* descriptor) { |
| 626 | InitializeVectorLoadStub(isolate(), descriptor, |
| 627 | FUNCTION_ADDR(VectorLoadIC_MissFromStubFailure)); |
| 628 | } |
| 629 | |
| 630 | |
| 631 | void VectorKeyedLoadStub::InitializeDescriptor(CodeStubDescriptor* descriptor) { |
| 632 | InitializeVectorLoadStub( |
| 633 | isolate(), descriptor, |
| 634 | FUNCTION_ADDR(VectorKeyedLoadIC_MissFromStubFailure)); |
| 635 | } |
| 636 | |
| 637 | |
| 638 | void MegamorphicLoadStub::InitializeDescriptor(CodeStubDescriptor* d) {} |
| 639 | |
| 640 | |
| 641 | void FastNewClosureStub::InitializeDescriptor(CodeStubDescriptor* descriptor) { |
| 642 | descriptor->Initialize( |
| 643 | Runtime::FunctionForId(Runtime::kNewClosureFromStubFailure)->entry); |
| 644 | } |
| 645 | |
| 646 | |
| 647 | void FastNewContextStub::InitializeDescriptor(CodeStubDescriptor* d) {} |
| 648 | |
| 649 | |
| 650 | void ToNumberStub::InitializeDescriptor(CodeStubDescriptor* d) {} |
| 651 | |
| 652 | |
| 653 | void NumberToStringStub::InitializeDescriptor(CodeStubDescriptor* descriptor) { |
| 654 | NumberToStringDescriptor call_descriptor(isolate()); |
| 655 | descriptor->Initialize( |
| 656 | Runtime::FunctionForId(Runtime::kNumberToStringRT)->entry); |
| 657 | } |
| 658 | |
| 659 | |
| 660 | void FastCloneShallowArrayStub::InitializeDescriptor( |
| 661 | CodeStubDescriptor* descriptor) { |
| 662 | FastCloneShallowArrayDescriptor call_descriptor(isolate()); |
| 663 | descriptor->Initialize( |
| 664 | Runtime::FunctionForId(Runtime::kCreateArrayLiteralStubBailout)->entry); |
| 665 | } |
| 666 | |
| 667 | |
| 668 | void FastCloneShallowObjectStub::InitializeDescriptor( |
| 669 | CodeStubDescriptor* descriptor) { |
| 670 | FastCloneShallowObjectDescriptor call_descriptor(isolate()); |
| 671 | descriptor->Initialize( |
| 672 | Runtime::FunctionForId(Runtime::kCreateObjectLiteral)->entry); |
| 673 | } |
| 674 | |
| 675 | |
| 676 | void CreateAllocationSiteStub::InitializeDescriptor(CodeStubDescriptor* d) {} |
| 677 | |
| 678 | |
| 679 | void RegExpConstructResultStub::InitializeDescriptor( |
| 680 | CodeStubDescriptor* descriptor) { |
| 681 | descriptor->Initialize( |
| 682 | Runtime::FunctionForId(Runtime::kRegExpConstructResult)->entry); |
| 683 | } |
| 684 | |
| 685 | |
| 686 | void TransitionElementsKindStub::InitializeDescriptor( |
| 687 | CodeStubDescriptor* descriptor) { |
| 688 | descriptor->Initialize( |
| 689 | Runtime::FunctionForId(Runtime::kTransitionElementsKind)->entry); |
| 690 | } |
| 691 | |
| 692 | |
| 693 | void CompareNilICStub::InitializeDescriptor(CodeStubDescriptor* descriptor) { |
| 694 | descriptor->Initialize(FUNCTION_ADDR(CompareNilIC_Miss)); |
| 695 | descriptor->SetMissHandler( |
| 696 | ExternalReference(IC_Utility(IC::kCompareNilIC_Miss), isolate())); |
| 697 | } |
| 698 | |
| 699 | |
| 700 | void ToBooleanStub::InitializeDescriptor(CodeStubDescriptor* descriptor) { |
| 701 | descriptor->Initialize(FUNCTION_ADDR(ToBooleanIC_Miss)); |
| 702 | descriptor->SetMissHandler( |
| 703 | ExternalReference(IC_Utility(IC::kToBooleanIC_Miss), isolate())); |
| 704 | } |
| 705 | |
| 706 | |
| 707 | void BinaryOpICStub::InitializeDescriptor(CodeStubDescriptor* descriptor) { |
| 708 | descriptor->Initialize(FUNCTION_ADDR(BinaryOpIC_Miss)); |
| 709 | descriptor->SetMissHandler( |
| 710 | ExternalReference(IC_Utility(IC::kBinaryOpIC_Miss), isolate())); |
| 711 | } |
| 712 | |
| 713 | |
| 714 | void BinaryOpWithAllocationSiteStub::InitializeDescriptor( |
| 715 | CodeStubDescriptor* descriptor) { |
| 716 | descriptor->Initialize(FUNCTION_ADDR(BinaryOpIC_MissWithAllocationSite)); |
| 717 | } |
| 718 | |
| 719 | |
| 720 | void StringAddStub::InitializeDescriptor(CodeStubDescriptor* descriptor) { |
| 721 | descriptor->Initialize(Runtime::FunctionForId(Runtime::kStringAdd)->entry); |
| 722 | } |
| 723 | |
| 724 | |
| 725 | void CreateAllocationSiteStub::GenerateAheadOfTime(Isolate* isolate) { |
| 726 | CreateAllocationSiteStub stub(isolate); |
| 727 | stub.GetCode(); |
| 728 | } |
| 729 | |
| 730 | |
| 731 | void StoreElementStub::Generate(MacroAssembler* masm) { |
| 732 | switch (elements_kind()) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 733 | case FAST_ELEMENTS: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 734 | case FAST_HOLEY_ELEMENTS: |
| 735 | case FAST_SMI_ELEMENTS: |
| 736 | case FAST_HOLEY_SMI_ELEMENTS: |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 737 | case FAST_DOUBLE_ELEMENTS: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 738 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
| 739 | #define TYPED_ARRAY_CASE(Type, type, TYPE, ctype, size) \ |
| 740 | case EXTERNAL_##TYPE##_ELEMENTS: \ |
| 741 | case TYPE##_ELEMENTS: |
| 742 | |
| 743 | TYPED_ARRAYS(TYPED_ARRAY_CASE) |
| 744 | #undef TYPED_ARRAY_CASE |
| 745 | UNREACHABLE(); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 746 | break; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 747 | case DICTIONARY_ELEMENTS: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 748 | ElementHandlerCompiler::GenerateStoreSlow(masm); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 749 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 750 | case SLOPPY_ARGUMENTS_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 751 | UNREACHABLE(); |
| 752 | break; |
| 753 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 754 | } |
| 755 | |
| 756 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 757 | void ArgumentsAccessStub::Generate(MacroAssembler* masm) { |
| 758 | switch (type()) { |
| 759 | case READ_ELEMENT: |
| 760 | GenerateReadElement(masm); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 761 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 762 | case NEW_SLOPPY_FAST: |
| 763 | GenerateNewSloppyFast(masm); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 764 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 765 | case NEW_SLOPPY_SLOW: |
| 766 | GenerateNewSloppySlow(masm); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 767 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 768 | case NEW_STRICT: |
| 769 | GenerateNewStrict(masm); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 770 | break; |
| 771 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 772 | } |
| 773 | |
| 774 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 775 | void ArgumentsAccessStub::PrintName(OStream& os) const { // NOLINT |
| 776 | os << "ArgumentsAccessStub_"; |
| 777 | switch (type()) { |
| 778 | case READ_ELEMENT: |
| 779 | os << "ReadElement"; |
| 780 | break; |
| 781 | case NEW_SLOPPY_FAST: |
| 782 | os << "NewSloppyFast"; |
| 783 | break; |
| 784 | case NEW_SLOPPY_SLOW: |
| 785 | os << "NewSloppySlow"; |
| 786 | break; |
| 787 | case NEW_STRICT: |
| 788 | os << "NewStrict"; |
| 789 | break; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 790 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 791 | return; |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 792 | } |
| 793 | |
| 794 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 795 | void CallFunctionStub::PrintName(OStream& os) const { // NOLINT |
| 796 | os << "CallFunctionStub_Args" << argc(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 797 | } |
| 798 | |
| 799 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 800 | void CallConstructStub::PrintName(OStream& os) const { // NOLINT |
| 801 | os << "CallConstructStub"; |
| 802 | if (RecordCallTarget()) os << "_Recording"; |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame] | 803 | } |
| 804 | |
| 805 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 806 | void ArrayConstructorStub::PrintName(OStream& os) const { // NOLINT |
| 807 | os << "ArrayConstructorStub"; |
| 808 | switch (argument_count()) { |
| 809 | case ANY: |
| 810 | os << "_Any"; |
| 811 | break; |
| 812 | case NONE: |
| 813 | os << "_None"; |
| 814 | break; |
| 815 | case ONE: |
| 816 | os << "_One"; |
| 817 | break; |
| 818 | case MORE_THAN_ONE: |
| 819 | os << "_More_Than_One"; |
| 820 | break; |
| 821 | } |
| 822 | return; |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 823 | } |
| 824 | |
| 825 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 826 | OStream& ArrayConstructorStubBase::BasePrintName(OStream& os, // NOLINT |
| 827 | const char* name) const { |
| 828 | os << name << "_" << ElementsKindToString(elements_kind()); |
| 829 | if (override_mode() == DISABLE_ALLOCATION_SITES) { |
| 830 | os << "_DISABLE_ALLOCATION_SITES"; |
| 831 | } |
| 832 | return os; |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 833 | } |
| 834 | |
| 835 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 836 | bool ToBooleanStub::UpdateStatus(Handle<Object> object) { |
| 837 | Types new_types = types(); |
| 838 | Types old_types = new_types; |
| 839 | bool to_boolean_value = new_types.UpdateStatus(object); |
| 840 | TraceTransition(old_types, new_types); |
| 841 | set_sub_minor_key(TypesBits::update(sub_minor_key(), new_types.ToByte())); |
| 842 | return to_boolean_value; |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 843 | } |
| 844 | |
| 845 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 846 | void ToBooleanStub::PrintState(OStream& os) const { // NOLINT |
| 847 | os << types(); |
| 848 | } |
| 849 | |
| 850 | |
| 851 | OStream& operator<<(OStream& os, const ToBooleanStub::Types& s) { |
| 852 | os << "("; |
| 853 | SimpleListPrinter p(os); |
| 854 | if (s.IsEmpty()) p.Add("None"); |
| 855 | if (s.Contains(ToBooleanStub::UNDEFINED)) p.Add("Undefined"); |
| 856 | if (s.Contains(ToBooleanStub::BOOLEAN)) p.Add("Bool"); |
| 857 | if (s.Contains(ToBooleanStub::NULL_TYPE)) p.Add("Null"); |
| 858 | if (s.Contains(ToBooleanStub::SMI)) p.Add("Smi"); |
| 859 | if (s.Contains(ToBooleanStub::SPEC_OBJECT)) p.Add("SpecObject"); |
| 860 | if (s.Contains(ToBooleanStub::STRING)) p.Add("String"); |
| 861 | if (s.Contains(ToBooleanStub::SYMBOL)) p.Add("Symbol"); |
| 862 | if (s.Contains(ToBooleanStub::HEAP_NUMBER)) p.Add("HeapNumber"); |
| 863 | return os << ")"; |
| 864 | } |
| 865 | |
| 866 | |
| 867 | bool ToBooleanStub::Types::UpdateStatus(Handle<Object> object) { |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 868 | if (object->IsUndefined()) { |
| 869 | Add(UNDEFINED); |
| 870 | return false; |
| 871 | } else if (object->IsBoolean()) { |
| 872 | Add(BOOLEAN); |
| 873 | return object->IsTrue(); |
| 874 | } else if (object->IsNull()) { |
| 875 | Add(NULL_TYPE); |
| 876 | return false; |
| 877 | } else if (object->IsSmi()) { |
| 878 | Add(SMI); |
| 879 | return Smi::cast(*object)->value() != 0; |
| 880 | } else if (object->IsSpecObject()) { |
| 881 | Add(SPEC_OBJECT); |
| 882 | return !object->IsUndetectableObject(); |
| 883 | } else if (object->IsString()) { |
| 884 | Add(STRING); |
| 885 | return !object->IsUndetectableObject() && |
| 886 | String::cast(*object)->length() != 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 887 | } else if (object->IsSymbol()) { |
| 888 | Add(SYMBOL); |
| 889 | return true; |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 890 | } else if (object->IsHeapNumber()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 891 | DCHECK(!object->IsUndetectableObject()); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 892 | Add(HEAP_NUMBER); |
| 893 | double value = HeapNumber::cast(*object)->value(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 894 | return value != 0 && !std::isnan(value); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 895 | } else { |
| 896 | // We should never see an internal object at runtime here! |
| 897 | UNREACHABLE(); |
| 898 | return true; |
| 899 | } |
| 900 | } |
| 901 | |
| 902 | |
| 903 | bool ToBooleanStub::Types::NeedsMap() const { |
| 904 | return Contains(ToBooleanStub::SPEC_OBJECT) |
| 905 | || Contains(ToBooleanStub::STRING) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 906 | || Contains(ToBooleanStub::SYMBOL) |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 907 | || Contains(ToBooleanStub::HEAP_NUMBER); |
| 908 | } |
| 909 | |
| 910 | |
| 911 | bool ToBooleanStub::Types::CanBeUndetectable() const { |
| 912 | return Contains(ToBooleanStub::SPEC_OBJECT) |
| 913 | || Contains(ToBooleanStub::STRING); |
| 914 | } |
| 915 | |
| 916 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 917 | void StubFailureTrampolineStub::GenerateAheadOfTime(Isolate* isolate) { |
| 918 | StubFailureTrampolineStub stub1(isolate, NOT_JS_FUNCTION_STUB_MODE); |
| 919 | StubFailureTrampolineStub stub2(isolate, JS_FUNCTION_STUB_MODE); |
| 920 | stub1.GetCode(); |
| 921 | stub2.GetCode(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 922 | } |
| 923 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 924 | |
| 925 | void ProfileEntryHookStub::EntryHookTrampoline(intptr_t function, |
| 926 | intptr_t stack_pointer, |
| 927 | Isolate* isolate) { |
| 928 | FunctionEntryHook entry_hook = isolate->function_entry_hook(); |
| 929 | DCHECK(entry_hook != NULL); |
| 930 | entry_hook(function, stack_pointer); |
| 931 | } |
| 932 | |
| 933 | |
| 934 | ArrayConstructorStub::ArrayConstructorStub(Isolate* isolate) |
| 935 | : PlatformCodeStub(isolate) { |
| 936 | minor_key_ = ArgumentCountBits::encode(ANY); |
| 937 | ArrayConstructorStubBase::GenerateStubsAheadOfTime(isolate); |
| 938 | } |
| 939 | |
| 940 | |
| 941 | ArrayConstructorStub::ArrayConstructorStub(Isolate* isolate, |
| 942 | int argument_count) |
| 943 | : PlatformCodeStub(isolate) { |
| 944 | if (argument_count == 0) { |
| 945 | minor_key_ = ArgumentCountBits::encode(NONE); |
| 946 | } else if (argument_count == 1) { |
| 947 | minor_key_ = ArgumentCountBits::encode(ONE); |
| 948 | } else if (argument_count >= 2) { |
| 949 | minor_key_ = ArgumentCountBits::encode(MORE_THAN_ONE); |
| 950 | } else { |
| 951 | UNREACHABLE(); |
| 952 | } |
| 953 | ArrayConstructorStubBase::GenerateStubsAheadOfTime(isolate); |
| 954 | } |
| 955 | |
| 956 | |
| 957 | InternalArrayConstructorStub::InternalArrayConstructorStub( |
| 958 | Isolate* isolate) : PlatformCodeStub(isolate) { |
| 959 | InternalArrayConstructorStubBase::GenerateStubsAheadOfTime(isolate); |
| 960 | } |
| 961 | |
| 962 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 963 | } } // namespace v8::internal |