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 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5 | #include "src/code-stubs.h" |
| 6 | |
| 7 | #include <sstream> |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 9 | #include "src/bootstrapper.h" |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 10 | #include "src/code-factory.h" |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 11 | #include "src/code-stub-assembler.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 12 | #include "src/factory.h" |
| 13 | #include "src/gdb-jit.h" |
| 14 | #include "src/ic/handler-compiler.h" |
| 15 | #include "src/ic/ic.h" |
| 16 | #include "src/macro-assembler.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 17 | #include "src/parsing/parser.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 18 | |
| 19 | namespace v8 { |
| 20 | namespace internal { |
| 21 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 22 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 23 | RUNTIME_FUNCTION(UnexpectedStubMiss) { |
| 24 | FATAL("Unexpected deopt of a stub"); |
| 25 | return Smi::FromInt(0); |
| 26 | } |
| 27 | |
| 28 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 29 | CodeStubDescriptor::CodeStubDescriptor(CodeStub* stub) |
| 30 | : call_descriptor_(stub->GetCallInterfaceDescriptor()), |
| 31 | stack_parameter_count_(no_reg), |
| 32 | hint_stack_parameter_count_(-1), |
| 33 | function_mode_(NOT_JS_FUNCTION_STUB_MODE), |
| 34 | deoptimization_handler_(NULL), |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 35 | miss_handler_(), |
| 36 | has_miss_handler_(false) { |
| 37 | stub->InitializeDescriptor(this); |
| 38 | } |
| 39 | |
| 40 | |
| 41 | CodeStubDescriptor::CodeStubDescriptor(Isolate* isolate, uint32_t stub_key) |
| 42 | : stack_parameter_count_(no_reg), |
| 43 | hint_stack_parameter_count_(-1), |
| 44 | function_mode_(NOT_JS_FUNCTION_STUB_MODE), |
| 45 | deoptimization_handler_(NULL), |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 46 | miss_handler_(), |
| 47 | has_miss_handler_(false) { |
| 48 | CodeStub::InitializeDescriptor(isolate, stub_key, this); |
| 49 | } |
| 50 | |
| 51 | |
| 52 | void CodeStubDescriptor::Initialize(Address deoptimization_handler, |
| 53 | int hint_stack_parameter_count, |
| 54 | StubFunctionMode function_mode) { |
| 55 | deoptimization_handler_ = deoptimization_handler; |
| 56 | hint_stack_parameter_count_ = hint_stack_parameter_count; |
| 57 | function_mode_ = function_mode; |
| 58 | } |
| 59 | |
| 60 | |
| 61 | void CodeStubDescriptor::Initialize(Register stack_parameter_count, |
| 62 | Address deoptimization_handler, |
| 63 | int hint_stack_parameter_count, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 64 | StubFunctionMode function_mode) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 65 | Initialize(deoptimization_handler, hint_stack_parameter_count, function_mode); |
| 66 | stack_parameter_count_ = stack_parameter_count; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 67 | } |
| 68 | |
| 69 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 70 | bool CodeStub::FindCodeInCache(Code** code_out) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 71 | UnseededNumberDictionary* stubs = isolate()->heap()->code_stubs(); |
| 72 | int index = stubs->FindEntry(GetKey()); |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 73 | if (index != UnseededNumberDictionary::kNotFound) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 74 | *code_out = Code::cast(stubs->ValueAt(index)); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 75 | return true; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 76 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 77 | return false; |
| 78 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 79 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 80 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 81 | void CodeStub::RecordCodeGeneration(Handle<Code> code) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 82 | std::ostringstream os; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 83 | os << *this; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 84 | PROFILE(isolate(), |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 85 | CodeCreateEvent(CodeEventListener::STUB_TAG, |
| 86 | AbstractCode::cast(*code), os.str().c_str())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 87 | Counters* counters = isolate()->counters(); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 88 | counters->total_stubs_code_size()->Increment(code->instruction_size()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 89 | #ifdef DEBUG |
| 90 | code->VerifyEmbeddedObjects(); |
| 91 | #endif |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 92 | } |
| 93 | |
| 94 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 95 | Code::Kind CodeStub::GetCodeKind() const { |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 96 | return Code::STUB; |
| 97 | } |
| 98 | |
| 99 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 100 | Code::Flags CodeStub::GetCodeFlags() const { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 101 | return Code::ComputeFlags(GetCodeKind(), GetExtraICState()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 102 | } |
| 103 | |
| 104 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 105 | Handle<Code> CodeStub::GetCodeCopy(const Code::FindAndReplacePattern& pattern) { |
| 106 | Handle<Code> ic = GetCode(); |
| 107 | ic = isolate()->factory()->CopyCode(ic); |
| 108 | ic->FindAndReplace(pattern); |
| 109 | RecordCodeGeneration(ic); |
| 110 | return ic; |
| 111 | } |
| 112 | |
| 113 | |
| 114 | Handle<Code> PlatformCodeStub::GenerateCode() { |
| 115 | Factory* factory = isolate()->factory(); |
| 116 | |
| 117 | // Generate the new code. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 118 | MacroAssembler masm(isolate(), NULL, 256, CodeObjectRequired::kYes); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 119 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 120 | { |
| 121 | // Update the static counter each time a new code stub is generated. |
| 122 | isolate()->counters()->code_stubs()->Increment(); |
| 123 | |
| 124 | // Generate the code for the stub. |
| 125 | masm.set_generating_stub(true); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 126 | // TODO(yangguo): remove this once we can serialize IC stubs. |
| 127 | masm.enable_serializer(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 128 | NoCurrentFrameScope scope(&masm); |
| 129 | Generate(&masm); |
| 130 | } |
| 131 | |
| 132 | // Create the code object. |
| 133 | CodeDesc desc; |
| 134 | masm.GetCode(&desc); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 135 | // Copy the generated code into a heap object. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 136 | Code::Flags flags = Code::ComputeFlags(GetCodeKind(), GetExtraICState()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 137 | Handle<Code> new_object = factory->NewCode( |
| 138 | desc, flags, masm.CodeObject(), NeedsImmovableCode()); |
| 139 | return new_object; |
| 140 | } |
| 141 | |
| 142 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 143 | Handle<Code> CodeStub::GetCode() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 144 | Heap* heap = isolate()->heap(); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 145 | Code* code; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 146 | if (UseSpecialCache() ? FindCodeInSpecialCache(&code) |
| 147 | : FindCodeInCache(&code)) { |
| 148 | DCHECK(GetCodeKind() == code->kind()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 149 | return Handle<Code>(code); |
| 150 | } |
| 151 | |
| 152 | { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 153 | HandleScope scope(isolate()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 154 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 155 | Handle<Code> new_object = GenerateCode(); |
| 156 | new_object->set_stub_key(GetKey()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 157 | FinishCode(new_object); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 158 | RecordCodeGeneration(new_object); |
| 159 | |
| 160 | #ifdef ENABLE_DISASSEMBLER |
| 161 | if (FLAG_print_code_stubs) { |
| 162 | CodeTracer::Scope trace_scope(isolate()->GetCodeTracer()); |
| 163 | OFStream os(trace_scope.file()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 164 | std::ostringstream name; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 165 | name << *this; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 166 | new_object->Disassemble(name.str().c_str(), os); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 167 | os << "\n"; |
| 168 | } |
| 169 | #endif |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 170 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 171 | if (UseSpecialCache()) { |
| 172 | AddToSpecialCache(new_object); |
| 173 | } else { |
| 174 | // Update the dictionary and the root in Heap. |
| 175 | Handle<UnseededNumberDictionary> dict = |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 176 | UnseededNumberDictionary::AtNumberPut( |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 177 | Handle<UnseededNumberDictionary>(heap->code_stubs()), |
| 178 | GetKey(), |
| 179 | new_object); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 180 | heap->SetRootCodeStubs(*dict); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 181 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 182 | code = *new_object; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 183 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 184 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 185 | Activate(code); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 186 | DCHECK(!NeedsImmovableCode() || |
| 187 | heap->lo_space()->Contains(code) || |
| 188 | heap->code_space()->FirstPage()->Contains(code->address())); |
| 189 | return Handle<Code>(code, isolate()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 190 | } |
| 191 | |
| 192 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 193 | const char* CodeStub::MajorName(CodeStub::Major major_key) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 194 | switch (major_key) { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 195 | #define DEF_CASE(name) case name: return #name "Stub"; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 196 | CODE_STUB_LIST(DEF_CASE) |
| 197 | #undef DEF_CASE |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 198 | case NoCache: |
| 199 | return "<NoCache>Stub"; |
| 200 | case NUMBER_OF_IDS: |
| 201 | UNREACHABLE(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 202 | return NULL; |
| 203 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 204 | return NULL; |
| 205 | } |
| 206 | |
| 207 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 208 | void CodeStub::PrintBaseName(std::ostream& os) const { // NOLINT |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 209 | os << MajorName(MajorKey()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 210 | } |
| 211 | |
| 212 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 213 | void CodeStub::PrintName(std::ostream& os) const { // NOLINT |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 214 | PrintBaseName(os); |
| 215 | PrintState(os); |
| 216 | } |
| 217 | |
| 218 | |
| 219 | void CodeStub::Dispatch(Isolate* isolate, uint32_t key, void** value_out, |
| 220 | DispatchedCall call) { |
| 221 | switch (MajorKeyFromKey(key)) { |
| 222 | #define DEF_CASE(NAME) \ |
| 223 | case NAME: { \ |
| 224 | NAME##Stub stub(key, isolate); \ |
| 225 | CodeStub* pstub = &stub; \ |
| 226 | call(pstub, value_out); \ |
| 227 | break; \ |
| 228 | } |
| 229 | CODE_STUB_LIST(DEF_CASE) |
| 230 | #undef DEF_CASE |
| 231 | case NUMBER_OF_IDS: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 232 | case NoCache: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 233 | UNREACHABLE(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 234 | break; |
| 235 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 236 | } |
| 237 | |
| 238 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 239 | static void InitializeDescriptorDispatchedCall(CodeStub* stub, |
| 240 | void** value_out) { |
| 241 | CodeStubDescriptor* descriptor_out = |
| 242 | reinterpret_cast<CodeStubDescriptor*>(value_out); |
| 243 | stub->InitializeDescriptor(descriptor_out); |
| 244 | descriptor_out->set_call_descriptor(stub->GetCallInterfaceDescriptor()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 245 | } |
| 246 | |
| 247 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 248 | void CodeStub::InitializeDescriptor(Isolate* isolate, uint32_t key, |
| 249 | CodeStubDescriptor* desc) { |
| 250 | void** value_out = reinterpret_cast<void**>(desc); |
| 251 | Dispatch(isolate, key, value_out, &InitializeDescriptorDispatchedCall); |
| 252 | } |
| 253 | |
| 254 | |
| 255 | void CodeStub::GetCodeDispatchCall(CodeStub* stub, void** value_out) { |
| 256 | Handle<Code>* code_out = reinterpret_cast<Handle<Code>*>(value_out); |
| 257 | // Code stubs with special cache cannot be recreated from stub key. |
| 258 | *code_out = stub->UseSpecialCache() ? Handle<Code>() : stub->GetCode(); |
| 259 | } |
| 260 | |
| 261 | |
| 262 | MaybeHandle<Code> CodeStub::GetCode(Isolate* isolate, uint32_t key) { |
| 263 | HandleScope scope(isolate); |
| 264 | Handle<Code> code; |
| 265 | void** value_out = reinterpret_cast<void**>(&code); |
| 266 | Dispatch(isolate, key, value_out, &GetCodeDispatchCall); |
| 267 | return scope.CloseAndEscape(code); |
| 268 | } |
| 269 | |
| 270 | |
| 271 | // static |
| 272 | void BinaryOpICStub::GenerateAheadOfTime(Isolate* isolate) { |
| 273 | // Generate the uninitialized versions of the stub. |
| 274 | for (int op = Token::BIT_OR; op <= Token::MOD; ++op) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 275 | BinaryOpICStub stub(isolate, static_cast<Token::Value>(op)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 276 | stub.GetCode(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 277 | } |
| 278 | |
| 279 | // Generate special versions of the stub. |
| 280 | BinaryOpICState::GenerateAheadOfTime(isolate, &GenerateAheadOfTime); |
| 281 | } |
| 282 | |
| 283 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 284 | void BinaryOpICStub::PrintState(std::ostream& os) const { // NOLINT |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 285 | os << state(); |
| 286 | } |
| 287 | |
| 288 | |
| 289 | // static |
| 290 | void BinaryOpICStub::GenerateAheadOfTime(Isolate* isolate, |
| 291 | const BinaryOpICState& state) { |
| 292 | BinaryOpICStub stub(isolate, state); |
| 293 | stub.GetCode(); |
| 294 | } |
| 295 | |
| 296 | |
| 297 | // static |
| 298 | void BinaryOpICWithAllocationSiteStub::GenerateAheadOfTime(Isolate* isolate) { |
| 299 | // Generate special versions of the stub. |
| 300 | BinaryOpICState::GenerateAheadOfTime(isolate, &GenerateAheadOfTime); |
| 301 | } |
| 302 | |
| 303 | |
| 304 | void BinaryOpICWithAllocationSiteStub::PrintState( |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 305 | std::ostream& os) const { // NOLINT |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 306 | os << state(); |
| 307 | } |
| 308 | |
| 309 | |
| 310 | // static |
| 311 | void BinaryOpICWithAllocationSiteStub::GenerateAheadOfTime( |
| 312 | Isolate* isolate, const BinaryOpICState& state) { |
| 313 | if (state.CouldCreateAllocationMementos()) { |
| 314 | BinaryOpICWithAllocationSiteStub stub(isolate, state); |
| 315 | stub.GetCode(); |
| 316 | } |
| 317 | } |
| 318 | |
| 319 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 320 | std::ostream& operator<<(std::ostream& os, const StringAddFlags& flags) { |
| 321 | switch (flags) { |
| 322 | case STRING_ADD_CHECK_NONE: |
| 323 | return os << "CheckNone"; |
| 324 | case STRING_ADD_CHECK_LEFT: |
| 325 | return os << "CheckLeft"; |
| 326 | case STRING_ADD_CHECK_RIGHT: |
| 327 | return os << "CheckRight"; |
| 328 | case STRING_ADD_CHECK_BOTH: |
| 329 | return os << "CheckBoth"; |
| 330 | case STRING_ADD_CONVERT_LEFT: |
| 331 | return os << "ConvertLeft"; |
| 332 | case STRING_ADD_CONVERT_RIGHT: |
| 333 | return os << "ConvertRight"; |
| 334 | case STRING_ADD_CONVERT: |
| 335 | break; |
| 336 | } |
| 337 | UNREACHABLE(); |
| 338 | return os; |
| 339 | } |
| 340 | |
| 341 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 342 | void StringAddStub::PrintBaseName(std::ostream& os) const { // NOLINT |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 343 | os << "StringAddStub_" << flags() << "_" << pretenure_flag(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 344 | } |
| 345 | |
| 346 | |
| 347 | InlineCacheState CompareICStub::GetICState() const { |
| 348 | CompareICState::State state = Max(left(), right()); |
| 349 | switch (state) { |
| 350 | case CompareICState::UNINITIALIZED: |
| 351 | return ::v8::internal::UNINITIALIZED; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 352 | case CompareICState::BOOLEAN: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 353 | case CompareICState::SMI: |
| 354 | case CompareICState::NUMBER: |
| 355 | case CompareICState::INTERNALIZED_STRING: |
| 356 | case CompareICState::STRING: |
| 357 | case CompareICState::UNIQUE_NAME: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 358 | case CompareICState::RECEIVER: |
| 359 | case CompareICState::KNOWN_RECEIVER: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 360 | return MONOMORPHIC; |
| 361 | case CompareICState::GENERIC: |
| 362 | return ::v8::internal::GENERIC; |
| 363 | } |
| 364 | UNREACHABLE(); |
| 365 | return ::v8::internal::UNINITIALIZED; |
| 366 | } |
| 367 | |
| 368 | |
| 369 | Condition CompareICStub::GetCondition() const { |
| 370 | return CompareIC::ComputeCondition(op()); |
| 371 | } |
| 372 | |
| 373 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 374 | void CompareICStub::Generate(MacroAssembler* masm) { |
| 375 | switch (state()) { |
| 376 | case CompareICState::UNINITIALIZED: |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 377 | GenerateMiss(masm); |
| 378 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 379 | case CompareICState::BOOLEAN: |
| 380 | GenerateBooleans(masm); |
| 381 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 382 | case CompareICState::SMI: |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 383 | GenerateSmis(masm); |
| 384 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 385 | case CompareICState::NUMBER: |
| 386 | GenerateNumbers(masm); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 387 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 388 | case CompareICState::STRING: |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 389 | GenerateStrings(masm); |
| 390 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 391 | case CompareICState::INTERNALIZED_STRING: |
| 392 | GenerateInternalizedStrings(masm); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 393 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 394 | case CompareICState::UNIQUE_NAME: |
| 395 | GenerateUniqueNames(masm); |
| 396 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 397 | case CompareICState::RECEIVER: |
| 398 | GenerateReceivers(masm); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 399 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 400 | case CompareICState::KNOWN_RECEIVER: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 401 | DCHECK(*known_map_ != NULL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 402 | GenerateKnownReceivers(masm); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 403 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 404 | case CompareICState::GENERIC: |
| 405 | GenerateGeneric(masm); |
| 406 | break; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 407 | } |
| 408 | } |
| 409 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 410 | Handle<Code> TurboFanCodeStub::GenerateCode() { |
| 411 | const char* name = CodeStub::MajorName(MajorKey()); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 412 | Zone zone(isolate()->allocator()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 413 | CallInterfaceDescriptor descriptor(GetCallInterfaceDescriptor()); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 414 | CodeStubAssembler assembler(isolate(), &zone, descriptor, GetCodeFlags(), |
| 415 | name); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 416 | GenerateAssembly(&assembler); |
| 417 | return assembler.GenerateCode(); |
| 418 | } |
| 419 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 420 | void LoadICTrampolineTFStub::GenerateAssembly( |
| 421 | CodeStubAssembler* assembler) const { |
| 422 | typedef compiler::Node Node; |
| 423 | |
| 424 | Node* receiver = assembler->Parameter(0); |
| 425 | Node* name = assembler->Parameter(1); |
| 426 | Node* slot = assembler->Parameter(2); |
| 427 | Node* context = assembler->Parameter(3); |
| 428 | Node* vector = assembler->LoadTypeFeedbackVectorForStub(); |
| 429 | |
| 430 | CodeStubAssembler::LoadICParameters p(context, receiver, name, slot, vector); |
| 431 | assembler->LoadIC(&p); |
| 432 | } |
| 433 | |
| 434 | void LoadICTFStub::GenerateAssembly(CodeStubAssembler* assembler) const { |
| 435 | typedef compiler::Node Node; |
| 436 | |
| 437 | Node* receiver = assembler->Parameter(0); |
| 438 | Node* name = assembler->Parameter(1); |
| 439 | Node* slot = assembler->Parameter(2); |
| 440 | Node* vector = assembler->Parameter(3); |
| 441 | Node* context = assembler->Parameter(4); |
| 442 | |
| 443 | CodeStubAssembler::LoadICParameters p(context, receiver, name, slot, vector); |
| 444 | assembler->LoadIC(&p); |
| 445 | } |
| 446 | |
| 447 | void LoadGlobalICTrampolineStub::GenerateAssembly( |
| 448 | CodeStubAssembler* assembler) const { |
| 449 | typedef compiler::Node Node; |
| 450 | |
| 451 | Node* slot = assembler->Parameter(0); |
| 452 | Node* context = assembler->Parameter(1); |
| 453 | Node* vector = assembler->LoadTypeFeedbackVectorForStub(); |
| 454 | |
| 455 | CodeStubAssembler::LoadICParameters p(context, nullptr, nullptr, slot, |
| 456 | vector); |
| 457 | assembler->LoadGlobalIC(&p); |
| 458 | } |
| 459 | |
| 460 | void LoadGlobalICStub::GenerateAssembly(CodeStubAssembler* assembler) const { |
| 461 | typedef compiler::Node Node; |
| 462 | |
| 463 | Node* slot = assembler->Parameter(0); |
| 464 | Node* vector = assembler->Parameter(1); |
| 465 | Node* context = assembler->Parameter(2); |
| 466 | |
| 467 | CodeStubAssembler::LoadICParameters p(context, nullptr, nullptr, slot, |
| 468 | vector); |
| 469 | assembler->LoadGlobalIC(&p); |
| 470 | } |
| 471 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 472 | void AllocateHeapNumberStub::GenerateAssembly( |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 473 | CodeStubAssembler* assembler) const { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 474 | typedef compiler::Node Node; |
| 475 | |
| 476 | Node* result = assembler->AllocateHeapNumber(); |
| 477 | assembler->Return(result); |
| 478 | } |
| 479 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 480 | #define SIMD128_GEN_ASM(TYPE, Type, type, lane_count, lane_type) \ |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 481 | void Allocate##Type##Stub::GenerateAssembly(CodeStubAssembler* assembler) \ |
| 482 | const { \ |
| 483 | compiler::Node* result = \ |
| 484 | assembler->Allocate(Simd128Value::kSize, CodeStubAssembler::kNone); \ |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 485 | compiler::Node* map_offset = \ |
| 486 | assembler->IntPtrConstant(HeapObject::kMapOffset - kHeapObjectTag); \ |
| 487 | compiler::Node* map = assembler->IntPtrAdd(result, map_offset); \ |
| 488 | assembler->StoreNoWriteBarrier( \ |
| 489 | MachineRepresentation::kTagged, map, \ |
| 490 | assembler->HeapConstant(isolate()->factory()->type##_map())); \ |
| 491 | assembler->Return(result); \ |
| 492 | } |
| 493 | SIMD128_TYPES(SIMD128_GEN_ASM) |
| 494 | #undef SIMD128_GEN_ASM |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 495 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 496 | void StringLengthStub::GenerateAssembly(CodeStubAssembler* assembler) const { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 497 | compiler::Node* value = assembler->Parameter(0); |
| 498 | compiler::Node* string = |
| 499 | assembler->LoadObjectField(value, JSValue::kValueOffset); |
| 500 | compiler::Node* result = |
| 501 | assembler->LoadObjectField(string, String::kLengthOffset); |
| 502 | assembler->Return(result); |
| 503 | } |
| 504 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 505 | // static |
| 506 | compiler::Node* AddStub::Generate(CodeStubAssembler* assembler, |
| 507 | compiler::Node* left, compiler::Node* right, |
| 508 | compiler::Node* context) { |
| 509 | typedef CodeStubAssembler::Label Label; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 510 | typedef compiler::Node Node; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 511 | typedef CodeStubAssembler::Variable Variable; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 512 | |
| 513 | // Shared entry for floating point addition. |
| 514 | Label do_fadd(assembler); |
| 515 | Variable var_fadd_lhs(assembler, MachineRepresentation::kFloat64), |
| 516 | var_fadd_rhs(assembler, MachineRepresentation::kFloat64); |
| 517 | |
| 518 | // We might need to loop several times due to ToPrimitive, ToString and/or |
| 519 | // ToNumber conversions. |
| 520 | Variable var_lhs(assembler, MachineRepresentation::kTagged), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 521 | var_rhs(assembler, MachineRepresentation::kTagged), |
| 522 | var_result(assembler, MachineRepresentation::kTagged); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 523 | Variable* loop_vars[2] = {&var_lhs, &var_rhs}; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 524 | Label loop(assembler, 2, loop_vars), end(assembler), |
| 525 | string_add_convert_left(assembler, Label::kDeferred), |
| 526 | string_add_convert_right(assembler, Label::kDeferred); |
| 527 | var_lhs.Bind(left); |
| 528 | var_rhs.Bind(right); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 529 | assembler->Goto(&loop); |
| 530 | assembler->Bind(&loop); |
| 531 | { |
| 532 | // Load the current {lhs} and {rhs} values. |
| 533 | Node* lhs = var_lhs.value(); |
| 534 | Node* rhs = var_rhs.value(); |
| 535 | |
| 536 | // Check if the {lhs} is a Smi or a HeapObject. |
| 537 | Label if_lhsissmi(assembler), if_lhsisnotsmi(assembler); |
| 538 | assembler->Branch(assembler->WordIsSmi(lhs), &if_lhsissmi, &if_lhsisnotsmi); |
| 539 | |
| 540 | assembler->Bind(&if_lhsissmi); |
| 541 | { |
| 542 | // Check if the {rhs} is also a Smi. |
| 543 | Label if_rhsissmi(assembler), if_rhsisnotsmi(assembler); |
| 544 | assembler->Branch(assembler->WordIsSmi(rhs), &if_rhsissmi, |
| 545 | &if_rhsisnotsmi); |
| 546 | |
| 547 | assembler->Bind(&if_rhsissmi); |
| 548 | { |
| 549 | // Try fast Smi addition first. |
| 550 | Node* pair = assembler->SmiAddWithOverflow(lhs, rhs); |
| 551 | Node* overflow = assembler->Projection(1, pair); |
| 552 | |
| 553 | // Check if the Smi additon overflowed. |
| 554 | Label if_overflow(assembler), if_notoverflow(assembler); |
| 555 | assembler->Branch(overflow, &if_overflow, &if_notoverflow); |
| 556 | |
| 557 | assembler->Bind(&if_overflow); |
| 558 | { |
| 559 | var_fadd_lhs.Bind(assembler->SmiToFloat64(lhs)); |
| 560 | var_fadd_rhs.Bind(assembler->SmiToFloat64(rhs)); |
| 561 | assembler->Goto(&do_fadd); |
| 562 | } |
| 563 | |
| 564 | assembler->Bind(&if_notoverflow); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 565 | var_result.Bind(assembler->Projection(0, pair)); |
| 566 | assembler->Goto(&end); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 567 | } |
| 568 | |
| 569 | assembler->Bind(&if_rhsisnotsmi); |
| 570 | { |
| 571 | // Load the map of {rhs}. |
| 572 | Node* rhs_map = assembler->LoadObjectField(rhs, HeapObject::kMapOffset); |
| 573 | |
| 574 | // Check if the {rhs} is a HeapNumber. |
| 575 | Label if_rhsisnumber(assembler), |
| 576 | if_rhsisnotnumber(assembler, Label::kDeferred); |
| 577 | Node* number_map = assembler->HeapNumberMapConstant(); |
| 578 | assembler->Branch(assembler->WordEqual(rhs_map, number_map), |
| 579 | &if_rhsisnumber, &if_rhsisnotnumber); |
| 580 | |
| 581 | assembler->Bind(&if_rhsisnumber); |
| 582 | { |
| 583 | var_fadd_lhs.Bind(assembler->SmiToFloat64(lhs)); |
| 584 | var_fadd_rhs.Bind(assembler->LoadHeapNumberValue(rhs)); |
| 585 | assembler->Goto(&do_fadd); |
| 586 | } |
| 587 | |
| 588 | assembler->Bind(&if_rhsisnotnumber); |
| 589 | { |
| 590 | // Load the instance type of {rhs}. |
| 591 | Node* rhs_instance_type = assembler->LoadMapInstanceType(rhs_map); |
| 592 | |
| 593 | // Check if the {rhs} is a String. |
| 594 | Label if_rhsisstring(assembler, Label::kDeferred), |
| 595 | if_rhsisnotstring(assembler, Label::kDeferred); |
| 596 | assembler->Branch(assembler->Int32LessThan( |
| 597 | rhs_instance_type, |
| 598 | assembler->Int32Constant(FIRST_NONSTRING_TYPE)), |
| 599 | &if_rhsisstring, &if_rhsisnotstring); |
| 600 | |
| 601 | assembler->Bind(&if_rhsisstring); |
| 602 | { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 603 | var_lhs.Bind(lhs); |
| 604 | var_rhs.Bind(rhs); |
| 605 | assembler->Goto(&string_add_convert_left); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 606 | } |
| 607 | |
| 608 | assembler->Bind(&if_rhsisnotstring); |
| 609 | { |
| 610 | // Check if {rhs} is a JSReceiver. |
| 611 | Label if_rhsisreceiver(assembler, Label::kDeferred), |
| 612 | if_rhsisnotreceiver(assembler, Label::kDeferred); |
| 613 | assembler->Branch( |
| 614 | assembler->Int32LessThanOrEqual( |
| 615 | assembler->Int32Constant(FIRST_JS_RECEIVER_TYPE), |
| 616 | rhs_instance_type), |
| 617 | &if_rhsisreceiver, &if_rhsisnotreceiver); |
| 618 | |
| 619 | assembler->Bind(&if_rhsisreceiver); |
| 620 | { |
| 621 | // Convert {rhs} to a primitive first passing no hint. |
| 622 | // TODO(bmeurer): Hook up ToPrimitiveStub here, once it's there. |
| 623 | var_rhs.Bind( |
| 624 | assembler->CallRuntime(Runtime::kToPrimitive, context, rhs)); |
| 625 | assembler->Goto(&loop); |
| 626 | } |
| 627 | |
| 628 | assembler->Bind(&if_rhsisnotreceiver); |
| 629 | { |
| 630 | // Convert {rhs} to a Number first. |
| 631 | Callable callable = |
| 632 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 633 | var_rhs.Bind(assembler->CallStub(callable, context, rhs)); |
| 634 | assembler->Goto(&loop); |
| 635 | } |
| 636 | } |
| 637 | } |
| 638 | } |
| 639 | } |
| 640 | |
| 641 | assembler->Bind(&if_lhsisnotsmi); |
| 642 | { |
| 643 | // Load the map and instance type of {lhs}. |
| 644 | Node* lhs_instance_type = assembler->LoadInstanceType(lhs); |
| 645 | |
| 646 | // Check if {lhs} is a String. |
| 647 | Label if_lhsisstring(assembler), if_lhsisnotstring(assembler); |
| 648 | assembler->Branch(assembler->Int32LessThan( |
| 649 | lhs_instance_type, |
| 650 | assembler->Int32Constant(FIRST_NONSTRING_TYPE)), |
| 651 | &if_lhsisstring, &if_lhsisnotstring); |
| 652 | |
| 653 | assembler->Bind(&if_lhsisstring); |
| 654 | { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 655 | var_lhs.Bind(lhs); |
| 656 | var_rhs.Bind(rhs); |
| 657 | assembler->Goto(&string_add_convert_right); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 658 | } |
| 659 | |
| 660 | assembler->Bind(&if_lhsisnotstring); |
| 661 | { |
| 662 | // Check if {rhs} is a Smi. |
| 663 | Label if_rhsissmi(assembler), if_rhsisnotsmi(assembler); |
| 664 | assembler->Branch(assembler->WordIsSmi(rhs), &if_rhsissmi, |
| 665 | &if_rhsisnotsmi); |
| 666 | |
| 667 | assembler->Bind(&if_rhsissmi); |
| 668 | { |
| 669 | // Check if {lhs} is a Number. |
| 670 | Label if_lhsisnumber(assembler), |
| 671 | if_lhsisnotnumber(assembler, Label::kDeferred); |
| 672 | assembler->Branch(assembler->Word32Equal( |
| 673 | lhs_instance_type, |
| 674 | assembler->Int32Constant(HEAP_NUMBER_TYPE)), |
| 675 | &if_lhsisnumber, &if_lhsisnotnumber); |
| 676 | |
| 677 | assembler->Bind(&if_lhsisnumber); |
| 678 | { |
| 679 | // The {lhs} is a HeapNumber, the {rhs} is a Smi, just add them. |
| 680 | var_fadd_lhs.Bind(assembler->LoadHeapNumberValue(lhs)); |
| 681 | var_fadd_rhs.Bind(assembler->SmiToFloat64(rhs)); |
| 682 | assembler->Goto(&do_fadd); |
| 683 | } |
| 684 | |
| 685 | assembler->Bind(&if_lhsisnotnumber); |
| 686 | { |
| 687 | // The {lhs} is neither a Number nor a String, and the {rhs} is a |
| 688 | // Smi. |
| 689 | Label if_lhsisreceiver(assembler, Label::kDeferred), |
| 690 | if_lhsisnotreceiver(assembler, Label::kDeferred); |
| 691 | assembler->Branch( |
| 692 | assembler->Int32LessThanOrEqual( |
| 693 | assembler->Int32Constant(FIRST_JS_RECEIVER_TYPE), |
| 694 | lhs_instance_type), |
| 695 | &if_lhsisreceiver, &if_lhsisnotreceiver); |
| 696 | |
| 697 | assembler->Bind(&if_lhsisreceiver); |
| 698 | { |
| 699 | // Convert {lhs} to a primitive first passing no hint. |
| 700 | // TODO(bmeurer): Hook up ToPrimitiveStub here, once it's there. |
| 701 | var_lhs.Bind( |
| 702 | assembler->CallRuntime(Runtime::kToPrimitive, context, lhs)); |
| 703 | assembler->Goto(&loop); |
| 704 | } |
| 705 | |
| 706 | assembler->Bind(&if_lhsisnotreceiver); |
| 707 | { |
| 708 | // Convert {lhs} to a Number first. |
| 709 | Callable callable = |
| 710 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 711 | var_lhs.Bind(assembler->CallStub(callable, context, lhs)); |
| 712 | assembler->Goto(&loop); |
| 713 | } |
| 714 | } |
| 715 | } |
| 716 | |
| 717 | assembler->Bind(&if_rhsisnotsmi); |
| 718 | { |
| 719 | // Load the instance type of {rhs}. |
| 720 | Node* rhs_instance_type = assembler->LoadInstanceType(rhs); |
| 721 | |
| 722 | // Check if {rhs} is a String. |
| 723 | Label if_rhsisstring(assembler), if_rhsisnotstring(assembler); |
| 724 | assembler->Branch(assembler->Int32LessThan( |
| 725 | rhs_instance_type, |
| 726 | assembler->Int32Constant(FIRST_NONSTRING_TYPE)), |
| 727 | &if_rhsisstring, &if_rhsisnotstring); |
| 728 | |
| 729 | assembler->Bind(&if_rhsisstring); |
| 730 | { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 731 | var_lhs.Bind(lhs); |
| 732 | var_rhs.Bind(rhs); |
| 733 | assembler->Goto(&string_add_convert_left); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 734 | } |
| 735 | |
| 736 | assembler->Bind(&if_rhsisnotstring); |
| 737 | { |
| 738 | // Check if {lhs} is a HeapNumber. |
| 739 | Label if_lhsisnumber(assembler), if_lhsisnotnumber(assembler); |
| 740 | assembler->Branch(assembler->Word32Equal( |
| 741 | lhs_instance_type, |
| 742 | assembler->Int32Constant(HEAP_NUMBER_TYPE)), |
| 743 | &if_lhsisnumber, &if_lhsisnotnumber); |
| 744 | |
| 745 | assembler->Bind(&if_lhsisnumber); |
| 746 | { |
| 747 | // Check if {rhs} is also a HeapNumber. |
| 748 | Label if_rhsisnumber(assembler), |
| 749 | if_rhsisnotnumber(assembler, Label::kDeferred); |
| 750 | assembler->Branch(assembler->Word32Equal( |
| 751 | rhs_instance_type, |
| 752 | assembler->Int32Constant(HEAP_NUMBER_TYPE)), |
| 753 | &if_rhsisnumber, &if_rhsisnotnumber); |
| 754 | |
| 755 | assembler->Bind(&if_rhsisnumber); |
| 756 | { |
| 757 | // Perform a floating point addition. |
| 758 | var_fadd_lhs.Bind(assembler->LoadHeapNumberValue(lhs)); |
| 759 | var_fadd_rhs.Bind(assembler->LoadHeapNumberValue(rhs)); |
| 760 | assembler->Goto(&do_fadd); |
| 761 | } |
| 762 | |
| 763 | assembler->Bind(&if_rhsisnotnumber); |
| 764 | { |
| 765 | // Check if {rhs} is a JSReceiver. |
| 766 | Label if_rhsisreceiver(assembler, Label::kDeferred), |
| 767 | if_rhsisnotreceiver(assembler, Label::kDeferred); |
| 768 | assembler->Branch( |
| 769 | assembler->Int32LessThanOrEqual( |
| 770 | assembler->Int32Constant(FIRST_JS_RECEIVER_TYPE), |
| 771 | rhs_instance_type), |
| 772 | &if_rhsisreceiver, &if_rhsisnotreceiver); |
| 773 | |
| 774 | assembler->Bind(&if_rhsisreceiver); |
| 775 | { |
| 776 | // Convert {rhs} to a primitive first passing no hint. |
| 777 | // TODO(bmeurer): Hook up ToPrimitiveStub here too. |
| 778 | var_rhs.Bind(assembler->CallRuntime(Runtime::kToPrimitive, |
| 779 | context, rhs)); |
| 780 | assembler->Goto(&loop); |
| 781 | } |
| 782 | |
| 783 | assembler->Bind(&if_rhsisnotreceiver); |
| 784 | { |
| 785 | // Convert {rhs} to a Number first. |
| 786 | Callable callable = |
| 787 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 788 | var_rhs.Bind(assembler->CallStub(callable, context, rhs)); |
| 789 | assembler->Goto(&loop); |
| 790 | } |
| 791 | } |
| 792 | } |
| 793 | |
| 794 | assembler->Bind(&if_lhsisnotnumber); |
| 795 | { |
| 796 | // Check if {lhs} is a JSReceiver. |
| 797 | Label if_lhsisreceiver(assembler, Label::kDeferred), |
| 798 | if_lhsisnotreceiver(assembler); |
| 799 | assembler->Branch( |
| 800 | assembler->Int32LessThanOrEqual( |
| 801 | assembler->Int32Constant(FIRST_JS_RECEIVER_TYPE), |
| 802 | lhs_instance_type), |
| 803 | &if_lhsisreceiver, &if_lhsisnotreceiver); |
| 804 | |
| 805 | assembler->Bind(&if_lhsisreceiver); |
| 806 | { |
| 807 | // Convert {lhs} to a primitive first passing no hint. |
| 808 | // TODO(bmeurer): Hook up ToPrimitiveStub here, once it's there. |
| 809 | var_lhs.Bind(assembler->CallRuntime(Runtime::kToPrimitive, |
| 810 | context, lhs)); |
| 811 | assembler->Goto(&loop); |
| 812 | } |
| 813 | |
| 814 | assembler->Bind(&if_lhsisnotreceiver); |
| 815 | { |
| 816 | // Check if {rhs} is a JSReceiver. |
| 817 | Label if_rhsisreceiver(assembler, Label::kDeferred), |
| 818 | if_rhsisnotreceiver(assembler, Label::kDeferred); |
| 819 | assembler->Branch( |
| 820 | assembler->Int32LessThanOrEqual( |
| 821 | assembler->Int32Constant(FIRST_JS_RECEIVER_TYPE), |
| 822 | rhs_instance_type), |
| 823 | &if_rhsisreceiver, &if_rhsisnotreceiver); |
| 824 | |
| 825 | assembler->Bind(&if_rhsisreceiver); |
| 826 | { |
| 827 | // Convert {rhs} to a primitive first passing no hint. |
| 828 | // TODO(bmeurer): Hook up ToPrimitiveStub here too. |
| 829 | var_rhs.Bind(assembler->CallRuntime(Runtime::kToPrimitive, |
| 830 | context, rhs)); |
| 831 | assembler->Goto(&loop); |
| 832 | } |
| 833 | |
| 834 | assembler->Bind(&if_rhsisnotreceiver); |
| 835 | { |
| 836 | // Convert {lhs} to a Number first. |
| 837 | Callable callable = |
| 838 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 839 | var_lhs.Bind(assembler->CallStub(callable, context, lhs)); |
| 840 | assembler->Goto(&loop); |
| 841 | } |
| 842 | } |
| 843 | } |
| 844 | } |
| 845 | } |
| 846 | } |
| 847 | } |
| 848 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 849 | assembler->Bind(&string_add_convert_left); |
| 850 | { |
| 851 | // Convert {lhs}, which is a Smi, to a String and concatenate the |
| 852 | // resulting string with the String {rhs}. |
| 853 | Callable callable = CodeFactory::StringAdd( |
| 854 | assembler->isolate(), STRING_ADD_CONVERT_LEFT, NOT_TENURED); |
| 855 | var_result.Bind(assembler->CallStub(callable, context, var_lhs.value(), |
| 856 | var_rhs.value())); |
| 857 | assembler->Goto(&end); |
| 858 | } |
| 859 | |
| 860 | assembler->Bind(&string_add_convert_right); |
| 861 | { |
| 862 | // Convert {lhs}, which is a Smi, to a String and concatenate the |
| 863 | // resulting string with the String {rhs}. |
| 864 | Callable callable = CodeFactory::StringAdd( |
| 865 | assembler->isolate(), STRING_ADD_CONVERT_RIGHT, NOT_TENURED); |
| 866 | var_result.Bind(assembler->CallStub(callable, context, var_lhs.value(), |
| 867 | var_rhs.value())); |
| 868 | assembler->Goto(&end); |
| 869 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 870 | |
| 871 | assembler->Bind(&do_fadd); |
| 872 | { |
| 873 | Node* lhs_value = var_fadd_lhs.value(); |
| 874 | Node* rhs_value = var_fadd_rhs.value(); |
| 875 | Node* value = assembler->Float64Add(lhs_value, rhs_value); |
| 876 | Node* result = assembler->ChangeFloat64ToTagged(value); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 877 | var_result.Bind(result); |
| 878 | assembler->Goto(&end); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 879 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 880 | assembler->Bind(&end); |
| 881 | return var_result.value(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 882 | } |
| 883 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 884 | // static |
| 885 | compiler::Node* SubtractStub::Generate(CodeStubAssembler* assembler, |
| 886 | compiler::Node* left, |
| 887 | compiler::Node* right, |
| 888 | compiler::Node* context) { |
| 889 | typedef CodeStubAssembler::Label Label; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 890 | typedef compiler::Node Node; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 891 | typedef CodeStubAssembler::Variable Variable; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 892 | |
| 893 | // Shared entry for floating point subtraction. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 894 | Label do_fsub(assembler), end(assembler); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 895 | Variable var_fsub_lhs(assembler, MachineRepresentation::kFloat64), |
| 896 | var_fsub_rhs(assembler, MachineRepresentation::kFloat64); |
| 897 | |
| 898 | // We might need to loop several times due to ToPrimitive and/or ToNumber |
| 899 | // conversions. |
| 900 | Variable var_lhs(assembler, MachineRepresentation::kTagged), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 901 | var_rhs(assembler, MachineRepresentation::kTagged), |
| 902 | var_result(assembler, MachineRepresentation::kTagged); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 903 | Variable* loop_vars[2] = {&var_lhs, &var_rhs}; |
| 904 | Label loop(assembler, 2, loop_vars); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 905 | var_lhs.Bind(left); |
| 906 | var_rhs.Bind(right); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 907 | assembler->Goto(&loop); |
| 908 | assembler->Bind(&loop); |
| 909 | { |
| 910 | // Load the current {lhs} and {rhs} values. |
| 911 | Node* lhs = var_lhs.value(); |
| 912 | Node* rhs = var_rhs.value(); |
| 913 | |
| 914 | // Check if the {lhs} is a Smi or a HeapObject. |
| 915 | Label if_lhsissmi(assembler), if_lhsisnotsmi(assembler); |
| 916 | assembler->Branch(assembler->WordIsSmi(lhs), &if_lhsissmi, &if_lhsisnotsmi); |
| 917 | |
| 918 | assembler->Bind(&if_lhsissmi); |
| 919 | { |
| 920 | // Check if the {rhs} is also a Smi. |
| 921 | Label if_rhsissmi(assembler), if_rhsisnotsmi(assembler); |
| 922 | assembler->Branch(assembler->WordIsSmi(rhs), &if_rhsissmi, |
| 923 | &if_rhsisnotsmi); |
| 924 | |
| 925 | assembler->Bind(&if_rhsissmi); |
| 926 | { |
| 927 | // Try a fast Smi subtraction first. |
| 928 | Node* pair = assembler->SmiSubWithOverflow(lhs, rhs); |
| 929 | Node* overflow = assembler->Projection(1, pair); |
| 930 | |
| 931 | // Check if the Smi subtraction overflowed. |
| 932 | Label if_overflow(assembler), if_notoverflow(assembler); |
| 933 | assembler->Branch(overflow, &if_overflow, &if_notoverflow); |
| 934 | |
| 935 | assembler->Bind(&if_overflow); |
| 936 | { |
| 937 | // The result doesn't fit into Smi range. |
| 938 | var_fsub_lhs.Bind(assembler->SmiToFloat64(lhs)); |
| 939 | var_fsub_rhs.Bind(assembler->SmiToFloat64(rhs)); |
| 940 | assembler->Goto(&do_fsub); |
| 941 | } |
| 942 | |
| 943 | assembler->Bind(&if_notoverflow); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 944 | var_result.Bind(assembler->Projection(0, pair)); |
| 945 | assembler->Goto(&end); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 946 | } |
| 947 | |
| 948 | assembler->Bind(&if_rhsisnotsmi); |
| 949 | { |
| 950 | // Load the map of the {rhs}. |
| 951 | Node* rhs_map = assembler->LoadMap(rhs); |
| 952 | |
| 953 | // Check if {rhs} is a HeapNumber. |
| 954 | Label if_rhsisnumber(assembler), |
| 955 | if_rhsisnotnumber(assembler, Label::kDeferred); |
| 956 | Node* number_map = assembler->HeapNumberMapConstant(); |
| 957 | assembler->Branch(assembler->WordEqual(rhs_map, number_map), |
| 958 | &if_rhsisnumber, &if_rhsisnotnumber); |
| 959 | |
| 960 | assembler->Bind(&if_rhsisnumber); |
| 961 | { |
| 962 | // Perform a floating point subtraction. |
| 963 | var_fsub_lhs.Bind(assembler->SmiToFloat64(lhs)); |
| 964 | var_fsub_rhs.Bind(assembler->LoadHeapNumberValue(rhs)); |
| 965 | assembler->Goto(&do_fsub); |
| 966 | } |
| 967 | |
| 968 | assembler->Bind(&if_rhsisnotnumber); |
| 969 | { |
| 970 | // Convert the {rhs} to a Number first. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 971 | Callable callable = |
| 972 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 973 | var_rhs.Bind(assembler->CallStub(callable, context, rhs)); |
| 974 | assembler->Goto(&loop); |
| 975 | } |
| 976 | } |
| 977 | } |
| 978 | |
| 979 | assembler->Bind(&if_lhsisnotsmi); |
| 980 | { |
| 981 | // Load the map of the {lhs}. |
| 982 | Node* lhs_map = assembler->LoadMap(lhs); |
| 983 | |
| 984 | // Check if the {lhs} is a HeapNumber. |
| 985 | Label if_lhsisnumber(assembler), |
| 986 | if_lhsisnotnumber(assembler, Label::kDeferred); |
| 987 | Node* number_map = assembler->HeapNumberMapConstant(); |
| 988 | assembler->Branch(assembler->WordEqual(lhs_map, number_map), |
| 989 | &if_lhsisnumber, &if_lhsisnotnumber); |
| 990 | |
| 991 | assembler->Bind(&if_lhsisnumber); |
| 992 | { |
| 993 | // Check if the {rhs} is a Smi. |
| 994 | Label if_rhsissmi(assembler), if_rhsisnotsmi(assembler); |
| 995 | assembler->Branch(assembler->WordIsSmi(rhs), &if_rhsissmi, |
| 996 | &if_rhsisnotsmi); |
| 997 | |
| 998 | assembler->Bind(&if_rhsissmi); |
| 999 | { |
| 1000 | // Perform a floating point subtraction. |
| 1001 | var_fsub_lhs.Bind(assembler->LoadHeapNumberValue(lhs)); |
| 1002 | var_fsub_rhs.Bind(assembler->SmiToFloat64(rhs)); |
| 1003 | assembler->Goto(&do_fsub); |
| 1004 | } |
| 1005 | |
| 1006 | assembler->Bind(&if_rhsisnotsmi); |
| 1007 | { |
| 1008 | // Load the map of the {rhs}. |
| 1009 | Node* rhs_map = assembler->LoadMap(rhs); |
| 1010 | |
| 1011 | // Check if the {rhs} is a HeapNumber. |
| 1012 | Label if_rhsisnumber(assembler), |
| 1013 | if_rhsisnotnumber(assembler, Label::kDeferred); |
| 1014 | assembler->Branch(assembler->WordEqual(rhs_map, number_map), |
| 1015 | &if_rhsisnumber, &if_rhsisnotnumber); |
| 1016 | |
| 1017 | assembler->Bind(&if_rhsisnumber); |
| 1018 | { |
| 1019 | // Perform a floating point subtraction. |
| 1020 | var_fsub_lhs.Bind(assembler->LoadHeapNumberValue(lhs)); |
| 1021 | var_fsub_rhs.Bind(assembler->LoadHeapNumberValue(rhs)); |
| 1022 | assembler->Goto(&do_fsub); |
| 1023 | } |
| 1024 | |
| 1025 | assembler->Bind(&if_rhsisnotnumber); |
| 1026 | { |
| 1027 | // Convert the {rhs} to a Number first. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1028 | Callable callable = |
| 1029 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1030 | var_rhs.Bind(assembler->CallStub(callable, context, rhs)); |
| 1031 | assembler->Goto(&loop); |
| 1032 | } |
| 1033 | } |
| 1034 | } |
| 1035 | |
| 1036 | assembler->Bind(&if_lhsisnotnumber); |
| 1037 | { |
| 1038 | // Convert the {lhs} to a Number first. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1039 | Callable callable = |
| 1040 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1041 | var_lhs.Bind(assembler->CallStub(callable, context, lhs)); |
| 1042 | assembler->Goto(&loop); |
| 1043 | } |
| 1044 | } |
| 1045 | } |
| 1046 | |
| 1047 | assembler->Bind(&do_fsub); |
| 1048 | { |
| 1049 | Node* lhs_value = var_fsub_lhs.value(); |
| 1050 | Node* rhs_value = var_fsub_rhs.value(); |
| 1051 | Node* value = assembler->Float64Sub(lhs_value, rhs_value); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1052 | var_result.Bind(assembler->ChangeFloat64ToTagged(value)); |
| 1053 | assembler->Goto(&end); |
| 1054 | } |
| 1055 | assembler->Bind(&end); |
| 1056 | return var_result.value(); |
| 1057 | } |
| 1058 | |
| 1059 | // static |
| 1060 | compiler::Node* MultiplyStub::Generate(CodeStubAssembler* assembler, |
| 1061 | compiler::Node* left, |
| 1062 | compiler::Node* right, |
| 1063 | compiler::Node* context) { |
| 1064 | using compiler::Node; |
| 1065 | typedef CodeStubAssembler::Label Label; |
| 1066 | typedef CodeStubAssembler::Variable Variable; |
| 1067 | |
| 1068 | // Shared entry point for floating point multiplication. |
| 1069 | Label do_fmul(assembler); |
| 1070 | Variable var_lhs_float64(assembler, MachineRepresentation::kFloat64), |
| 1071 | var_rhs_float64(assembler, MachineRepresentation::kFloat64); |
| 1072 | |
| 1073 | Node* number_map = assembler->HeapNumberMapConstant(); |
| 1074 | |
| 1075 | // We might need to loop one or two times due to ToNumber conversions. |
| 1076 | Variable var_lhs(assembler, MachineRepresentation::kTagged), |
| 1077 | var_rhs(assembler, MachineRepresentation::kTagged); |
| 1078 | Variable* loop_variables[] = {&var_lhs, &var_rhs}; |
| 1079 | Label loop(assembler, 2, loop_variables); |
| 1080 | var_lhs.Bind(left); |
| 1081 | var_rhs.Bind(right); |
| 1082 | assembler->Goto(&loop); |
| 1083 | assembler->Bind(&loop); |
| 1084 | { |
| 1085 | Node* lhs = var_lhs.value(); |
| 1086 | Node* rhs = var_rhs.value(); |
| 1087 | |
| 1088 | Label lhs_is_smi(assembler), lhs_is_not_smi(assembler); |
| 1089 | assembler->Branch(assembler->WordIsSmi(lhs), &lhs_is_smi, &lhs_is_not_smi); |
| 1090 | |
| 1091 | assembler->Bind(&lhs_is_smi); |
| 1092 | { |
| 1093 | Label rhs_is_smi(assembler), rhs_is_not_smi(assembler); |
| 1094 | assembler->Branch(assembler->WordIsSmi(rhs), &rhs_is_smi, |
| 1095 | &rhs_is_not_smi); |
| 1096 | |
| 1097 | assembler->Bind(&rhs_is_smi); |
| 1098 | { |
| 1099 | // Both {lhs} and {rhs} are Smis. Convert them to double and multiply. |
| 1100 | // TODO(epertoso): use SmiMulWithOverflow once available. |
| 1101 | var_lhs_float64.Bind(assembler->SmiToFloat64(lhs)); |
| 1102 | var_rhs_float64.Bind(assembler->SmiToFloat64(rhs)); |
| 1103 | assembler->Goto(&do_fmul); |
| 1104 | } |
| 1105 | |
| 1106 | assembler->Bind(&rhs_is_not_smi); |
| 1107 | { |
| 1108 | Node* rhs_map = assembler->LoadMap(rhs); |
| 1109 | |
| 1110 | // Check if {rhs} is a HeapNumber. |
| 1111 | Label rhs_is_number(assembler), |
| 1112 | rhs_is_not_number(assembler, Label::kDeferred); |
| 1113 | assembler->Branch(assembler->WordEqual(rhs_map, number_map), |
| 1114 | &rhs_is_number, &rhs_is_not_number); |
| 1115 | |
| 1116 | assembler->Bind(&rhs_is_number); |
| 1117 | { |
| 1118 | // Convert {lhs} to a double and multiply it with the value of {rhs}. |
| 1119 | var_lhs_float64.Bind(assembler->SmiToFloat64(lhs)); |
| 1120 | var_rhs_float64.Bind(assembler->LoadHeapNumberValue(rhs)); |
| 1121 | assembler->Goto(&do_fmul); |
| 1122 | } |
| 1123 | |
| 1124 | assembler->Bind(&rhs_is_not_number); |
| 1125 | { |
| 1126 | // Multiplication is commutative, swap {lhs} with {rhs} and loop. |
| 1127 | var_lhs.Bind(rhs); |
| 1128 | var_rhs.Bind(lhs); |
| 1129 | assembler->Goto(&loop); |
| 1130 | } |
| 1131 | } |
| 1132 | } |
| 1133 | |
| 1134 | assembler->Bind(&lhs_is_not_smi); |
| 1135 | { |
| 1136 | Node* lhs_map = assembler->LoadMap(lhs); |
| 1137 | |
| 1138 | // Check if {lhs} is a HeapNumber. |
| 1139 | Label lhs_is_number(assembler), |
| 1140 | lhs_is_not_number(assembler, Label::kDeferred); |
| 1141 | assembler->Branch(assembler->WordEqual(lhs_map, number_map), |
| 1142 | &lhs_is_number, &lhs_is_not_number); |
| 1143 | |
| 1144 | assembler->Bind(&lhs_is_number); |
| 1145 | { |
| 1146 | // Check if {rhs} is a Smi. |
| 1147 | Label rhs_is_smi(assembler), rhs_is_not_smi(assembler); |
| 1148 | assembler->Branch(assembler->WordIsSmi(rhs), &rhs_is_smi, |
| 1149 | &rhs_is_not_smi); |
| 1150 | |
| 1151 | assembler->Bind(&rhs_is_smi); |
| 1152 | { |
| 1153 | // Convert {rhs} to a double and multiply it with the value of {lhs}. |
| 1154 | var_lhs_float64.Bind(assembler->LoadHeapNumberValue(lhs)); |
| 1155 | var_rhs_float64.Bind(assembler->SmiToFloat64(rhs)); |
| 1156 | assembler->Goto(&do_fmul); |
| 1157 | } |
| 1158 | |
| 1159 | assembler->Bind(&rhs_is_not_smi); |
| 1160 | { |
| 1161 | Node* rhs_map = assembler->LoadMap(rhs); |
| 1162 | |
| 1163 | // Check if {rhs} is a HeapNumber. |
| 1164 | Label rhs_is_number(assembler), |
| 1165 | rhs_is_not_number(assembler, Label::kDeferred); |
| 1166 | assembler->Branch(assembler->WordEqual(rhs_map, number_map), |
| 1167 | &rhs_is_number, &rhs_is_not_number); |
| 1168 | |
| 1169 | assembler->Bind(&rhs_is_number); |
| 1170 | { |
| 1171 | // Both {lhs} and {rhs} are HeapNumbers. Load their values and |
| 1172 | // multiply them. |
| 1173 | var_lhs_float64.Bind(assembler->LoadHeapNumberValue(lhs)); |
| 1174 | var_rhs_float64.Bind(assembler->LoadHeapNumberValue(rhs)); |
| 1175 | assembler->Goto(&do_fmul); |
| 1176 | } |
| 1177 | |
| 1178 | assembler->Bind(&rhs_is_not_number); |
| 1179 | { |
| 1180 | // Multiplication is commutative, swap {lhs} with {rhs} and loop. |
| 1181 | var_lhs.Bind(rhs); |
| 1182 | var_rhs.Bind(lhs); |
| 1183 | assembler->Goto(&loop); |
| 1184 | } |
| 1185 | } |
| 1186 | } |
| 1187 | |
| 1188 | assembler->Bind(&lhs_is_not_number); |
| 1189 | { |
| 1190 | // Convert {lhs} to a Number and loop. |
| 1191 | Callable callable = |
| 1192 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 1193 | var_lhs.Bind(assembler->CallStub(callable, context, lhs)); |
| 1194 | assembler->Goto(&loop); |
| 1195 | } |
| 1196 | } |
| 1197 | } |
| 1198 | |
| 1199 | assembler->Bind(&do_fmul); |
| 1200 | { |
| 1201 | Node* value = |
| 1202 | assembler->Float64Mul(var_lhs_float64.value(), var_rhs_float64.value()); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1203 | Node* result = assembler->ChangeFloat64ToTagged(value); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1204 | return result; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1205 | } |
| 1206 | } |
| 1207 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1208 | // static |
| 1209 | compiler::Node* DivideStub::Generate(CodeStubAssembler* assembler, |
| 1210 | compiler::Node* left, |
| 1211 | compiler::Node* right, |
| 1212 | compiler::Node* context) { |
| 1213 | using compiler::Node; |
| 1214 | typedef CodeStubAssembler::Label Label; |
| 1215 | typedef CodeStubAssembler::Variable Variable; |
| 1216 | |
| 1217 | // Shared entry point for floating point division. |
| 1218 | Label do_fdiv(assembler), end(assembler); |
| 1219 | Variable var_dividend_float64(assembler, MachineRepresentation::kFloat64), |
| 1220 | var_divisor_float64(assembler, MachineRepresentation::kFloat64); |
| 1221 | |
| 1222 | Node* number_map = assembler->HeapNumberMapConstant(); |
| 1223 | |
| 1224 | // We might need to loop one or two times due to ToNumber conversions. |
| 1225 | Variable var_dividend(assembler, MachineRepresentation::kTagged), |
| 1226 | var_divisor(assembler, MachineRepresentation::kTagged), |
| 1227 | var_result(assembler, MachineRepresentation::kTagged); |
| 1228 | Variable* loop_variables[] = {&var_dividend, &var_divisor}; |
| 1229 | Label loop(assembler, 2, loop_variables); |
| 1230 | var_dividend.Bind(left); |
| 1231 | var_divisor.Bind(right); |
| 1232 | assembler->Goto(&loop); |
| 1233 | assembler->Bind(&loop); |
| 1234 | { |
| 1235 | Node* dividend = var_dividend.value(); |
| 1236 | Node* divisor = var_divisor.value(); |
| 1237 | |
| 1238 | Label dividend_is_smi(assembler), dividend_is_not_smi(assembler); |
| 1239 | assembler->Branch(assembler->WordIsSmi(dividend), ÷nd_is_smi, |
| 1240 | ÷nd_is_not_smi); |
| 1241 | |
| 1242 | assembler->Bind(÷nd_is_smi); |
| 1243 | { |
| 1244 | Label divisor_is_smi(assembler), divisor_is_not_smi(assembler); |
| 1245 | assembler->Branch(assembler->WordIsSmi(divisor), &divisor_is_smi, |
| 1246 | &divisor_is_not_smi); |
| 1247 | |
| 1248 | assembler->Bind(&divisor_is_smi); |
| 1249 | { |
| 1250 | Label bailout(assembler); |
| 1251 | |
| 1252 | // Do floating point division if {divisor} is zero. |
| 1253 | assembler->GotoIf( |
| 1254 | assembler->WordEqual(divisor, assembler->IntPtrConstant(0)), |
| 1255 | &bailout); |
| 1256 | |
| 1257 | // Do floating point division {dividend} is zero and {divisor} is |
| 1258 | // negative. |
| 1259 | Label dividend_is_zero(assembler), dividend_is_not_zero(assembler); |
| 1260 | assembler->Branch( |
| 1261 | assembler->WordEqual(dividend, assembler->IntPtrConstant(0)), |
| 1262 | ÷nd_is_zero, ÷nd_is_not_zero); |
| 1263 | |
| 1264 | assembler->Bind(÷nd_is_zero); |
| 1265 | { |
| 1266 | assembler->GotoIf( |
| 1267 | assembler->IntPtrLessThan(divisor, assembler->IntPtrConstant(0)), |
| 1268 | &bailout); |
| 1269 | assembler->Goto(÷nd_is_not_zero); |
| 1270 | } |
| 1271 | assembler->Bind(÷nd_is_not_zero); |
| 1272 | |
| 1273 | Node* untagged_divisor = assembler->SmiUntag(divisor); |
| 1274 | Node* untagged_dividend = assembler->SmiUntag(dividend); |
| 1275 | |
| 1276 | // Do floating point division if {dividend} is kMinInt (or kMinInt - 1 |
| 1277 | // if the Smi size is 31) and {divisor} is -1. |
| 1278 | Label divisor_is_minus_one(assembler), |
| 1279 | divisor_is_not_minus_one(assembler); |
| 1280 | assembler->Branch(assembler->Word32Equal(untagged_divisor, |
| 1281 | assembler->Int32Constant(-1)), |
| 1282 | &divisor_is_minus_one, &divisor_is_not_minus_one); |
| 1283 | |
| 1284 | assembler->Bind(&divisor_is_minus_one); |
| 1285 | { |
| 1286 | assembler->GotoIf( |
| 1287 | assembler->Word32Equal( |
| 1288 | untagged_dividend, |
| 1289 | assembler->Int32Constant( |
| 1290 | kSmiValueSize == 32 ? kMinInt : (kMinInt >> 1))), |
| 1291 | &bailout); |
| 1292 | assembler->Goto(&divisor_is_not_minus_one); |
| 1293 | } |
| 1294 | assembler->Bind(&divisor_is_not_minus_one); |
| 1295 | |
| 1296 | // TODO(epertoso): consider adding a machine instruction that returns |
| 1297 | // both the result and the remainder. |
| 1298 | Node* untagged_result = |
| 1299 | assembler->Int32Div(untagged_dividend, untagged_divisor); |
| 1300 | Node* truncated = |
| 1301 | assembler->IntPtrMul(untagged_result, untagged_divisor); |
| 1302 | // Do floating point division if the remainder is not 0. |
| 1303 | assembler->GotoIf( |
| 1304 | assembler->Word32NotEqual(untagged_dividend, truncated), &bailout); |
| 1305 | var_result.Bind(assembler->SmiTag(untagged_result)); |
| 1306 | assembler->Goto(&end); |
| 1307 | |
| 1308 | // Bailout: convert {dividend} and {divisor} to double and do double |
| 1309 | // division. |
| 1310 | assembler->Bind(&bailout); |
| 1311 | { |
| 1312 | var_dividend_float64.Bind(assembler->SmiToFloat64(dividend)); |
| 1313 | var_divisor_float64.Bind(assembler->SmiToFloat64(divisor)); |
| 1314 | assembler->Goto(&do_fdiv); |
| 1315 | } |
| 1316 | } |
| 1317 | |
| 1318 | assembler->Bind(&divisor_is_not_smi); |
| 1319 | { |
| 1320 | Node* divisor_map = assembler->LoadMap(divisor); |
| 1321 | |
| 1322 | // Check if {divisor} is a HeapNumber. |
| 1323 | Label divisor_is_number(assembler), |
| 1324 | divisor_is_not_number(assembler, Label::kDeferred); |
| 1325 | assembler->Branch(assembler->WordEqual(divisor_map, number_map), |
| 1326 | &divisor_is_number, &divisor_is_not_number); |
| 1327 | |
| 1328 | assembler->Bind(&divisor_is_number); |
| 1329 | { |
| 1330 | // Convert {dividend} to a double and divide it with the value of |
| 1331 | // {divisor}. |
| 1332 | var_dividend_float64.Bind(assembler->SmiToFloat64(dividend)); |
| 1333 | var_divisor_float64.Bind(assembler->LoadHeapNumberValue(divisor)); |
| 1334 | assembler->Goto(&do_fdiv); |
| 1335 | } |
| 1336 | |
| 1337 | assembler->Bind(&divisor_is_not_number); |
| 1338 | { |
| 1339 | // Convert {divisor} to a number and loop. |
| 1340 | Callable callable = |
| 1341 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 1342 | var_divisor.Bind(assembler->CallStub(callable, context, divisor)); |
| 1343 | assembler->Goto(&loop); |
| 1344 | } |
| 1345 | } |
| 1346 | } |
| 1347 | |
| 1348 | assembler->Bind(÷nd_is_not_smi); |
| 1349 | { |
| 1350 | Node* dividend_map = assembler->LoadMap(dividend); |
| 1351 | |
| 1352 | // Check if {dividend} is a HeapNumber. |
| 1353 | Label dividend_is_number(assembler), |
| 1354 | dividend_is_not_number(assembler, Label::kDeferred); |
| 1355 | assembler->Branch(assembler->WordEqual(dividend_map, number_map), |
| 1356 | ÷nd_is_number, ÷nd_is_not_number); |
| 1357 | |
| 1358 | assembler->Bind(÷nd_is_number); |
| 1359 | { |
| 1360 | // Check if {divisor} is a Smi. |
| 1361 | Label divisor_is_smi(assembler), divisor_is_not_smi(assembler); |
| 1362 | assembler->Branch(assembler->WordIsSmi(divisor), &divisor_is_smi, |
| 1363 | &divisor_is_not_smi); |
| 1364 | |
| 1365 | assembler->Bind(&divisor_is_smi); |
| 1366 | { |
| 1367 | // Convert {divisor} to a double and use it for a floating point |
| 1368 | // division. |
| 1369 | var_dividend_float64.Bind(assembler->LoadHeapNumberValue(dividend)); |
| 1370 | var_divisor_float64.Bind(assembler->SmiToFloat64(divisor)); |
| 1371 | assembler->Goto(&do_fdiv); |
| 1372 | } |
| 1373 | |
| 1374 | assembler->Bind(&divisor_is_not_smi); |
| 1375 | { |
| 1376 | Node* divisor_map = assembler->LoadMap(divisor); |
| 1377 | |
| 1378 | // Check if {divisor} is a HeapNumber. |
| 1379 | Label divisor_is_number(assembler), |
| 1380 | divisor_is_not_number(assembler, Label::kDeferred); |
| 1381 | assembler->Branch(assembler->WordEqual(divisor_map, number_map), |
| 1382 | &divisor_is_number, &divisor_is_not_number); |
| 1383 | |
| 1384 | assembler->Bind(&divisor_is_number); |
| 1385 | { |
| 1386 | // Both {dividend} and {divisor} are HeapNumbers. Load their values |
| 1387 | // and divide them. |
| 1388 | var_dividend_float64.Bind(assembler->LoadHeapNumberValue(dividend)); |
| 1389 | var_divisor_float64.Bind(assembler->LoadHeapNumberValue(divisor)); |
| 1390 | assembler->Goto(&do_fdiv); |
| 1391 | } |
| 1392 | |
| 1393 | assembler->Bind(&divisor_is_not_number); |
| 1394 | { |
| 1395 | // Convert {divisor} to a number and loop. |
| 1396 | Callable callable = |
| 1397 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 1398 | var_divisor.Bind(assembler->CallStub(callable, context, divisor)); |
| 1399 | assembler->Goto(&loop); |
| 1400 | } |
| 1401 | } |
| 1402 | } |
| 1403 | |
| 1404 | assembler->Bind(÷nd_is_not_number); |
| 1405 | { |
| 1406 | // Convert {dividend} to a Number and loop. |
| 1407 | Callable callable = |
| 1408 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 1409 | var_dividend.Bind(assembler->CallStub(callable, context, dividend)); |
| 1410 | assembler->Goto(&loop); |
| 1411 | } |
| 1412 | } |
| 1413 | } |
| 1414 | |
| 1415 | assembler->Bind(&do_fdiv); |
| 1416 | { |
| 1417 | Node* value = assembler->Float64Div(var_dividend_float64.value(), |
| 1418 | var_divisor_float64.value()); |
| 1419 | var_result.Bind(assembler->ChangeFloat64ToTagged(value)); |
| 1420 | assembler->Goto(&end); |
| 1421 | } |
| 1422 | assembler->Bind(&end); |
| 1423 | return var_result.value(); |
| 1424 | } |
| 1425 | |
| 1426 | // static |
| 1427 | compiler::Node* ModulusStub::Generate(CodeStubAssembler* assembler, |
| 1428 | compiler::Node* left, |
| 1429 | compiler::Node* right, |
| 1430 | compiler::Node* context) { |
| 1431 | using compiler::Node; |
| 1432 | typedef CodeStubAssembler::Label Label; |
| 1433 | typedef CodeStubAssembler::Variable Variable; |
| 1434 | |
| 1435 | // Shared entry point for floating point modulus. |
| 1436 | Label do_fmod(assembler); |
| 1437 | Variable var_dividend_float64(assembler, MachineRepresentation::kFloat64), |
| 1438 | var_divisor_float64(assembler, MachineRepresentation::kFloat64); |
| 1439 | |
| 1440 | Node* number_map = assembler->HeapNumberMapConstant(); |
| 1441 | |
| 1442 | // We might need to loop one or two times due to ToNumber conversions. |
| 1443 | Variable var_dividend(assembler, MachineRepresentation::kTagged), |
| 1444 | var_divisor(assembler, MachineRepresentation::kTagged); |
| 1445 | Variable* loop_variables[] = {&var_dividend, &var_divisor}; |
| 1446 | Label loop(assembler, 2, loop_variables); |
| 1447 | var_dividend.Bind(left); |
| 1448 | var_divisor.Bind(right); |
| 1449 | assembler->Goto(&loop); |
| 1450 | assembler->Bind(&loop); |
| 1451 | { |
| 1452 | Node* dividend = var_dividend.value(); |
| 1453 | Node* divisor = var_divisor.value(); |
| 1454 | |
| 1455 | Label dividend_is_smi(assembler), dividend_is_not_smi(assembler); |
| 1456 | assembler->Branch(assembler->WordIsSmi(dividend), ÷nd_is_smi, |
| 1457 | ÷nd_is_not_smi); |
| 1458 | |
| 1459 | assembler->Bind(÷nd_is_smi); |
| 1460 | { |
| 1461 | Label dividend_is_not_zero(assembler); |
| 1462 | Label divisor_is_smi(assembler), divisor_is_not_smi(assembler); |
| 1463 | assembler->Branch(assembler->WordIsSmi(divisor), &divisor_is_smi, |
| 1464 | &divisor_is_not_smi); |
| 1465 | |
| 1466 | assembler->Bind(&divisor_is_smi); |
| 1467 | { |
| 1468 | var_dividend_float64.Bind(assembler->SmiToFloat64(dividend)); |
| 1469 | var_divisor_float64.Bind(assembler->SmiToFloat64(divisor)); |
| 1470 | assembler->Goto(&do_fmod); |
| 1471 | } |
| 1472 | |
| 1473 | assembler->Bind(&divisor_is_not_smi); |
| 1474 | { |
| 1475 | Node* divisor_map = assembler->LoadMap(divisor); |
| 1476 | |
| 1477 | // Check if {divisor} is a HeapNumber. |
| 1478 | Label divisor_is_number(assembler), |
| 1479 | divisor_is_not_number(assembler, Label::kDeferred); |
| 1480 | assembler->Branch(assembler->WordEqual(divisor_map, number_map), |
| 1481 | &divisor_is_number, &divisor_is_not_number); |
| 1482 | |
| 1483 | assembler->Bind(&divisor_is_number); |
| 1484 | { |
| 1485 | // Convert {dividend} to a double and compute its modulus with the |
| 1486 | // value of {dividend}. |
| 1487 | var_dividend_float64.Bind(assembler->SmiToFloat64(dividend)); |
| 1488 | var_divisor_float64.Bind(assembler->LoadHeapNumberValue(divisor)); |
| 1489 | assembler->Goto(&do_fmod); |
| 1490 | } |
| 1491 | |
| 1492 | assembler->Bind(&divisor_is_not_number); |
| 1493 | { |
| 1494 | // Convert {divisor} to a number and loop. |
| 1495 | Callable callable = |
| 1496 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 1497 | var_divisor.Bind(assembler->CallStub(callable, context, divisor)); |
| 1498 | assembler->Goto(&loop); |
| 1499 | } |
| 1500 | } |
| 1501 | } |
| 1502 | |
| 1503 | assembler->Bind(÷nd_is_not_smi); |
| 1504 | { |
| 1505 | Node* dividend_map = assembler->LoadMap(dividend); |
| 1506 | |
| 1507 | // Check if {dividend} is a HeapNumber. |
| 1508 | Label dividend_is_number(assembler), |
| 1509 | dividend_is_not_number(assembler, Label::kDeferred); |
| 1510 | assembler->Branch(assembler->WordEqual(dividend_map, number_map), |
| 1511 | ÷nd_is_number, ÷nd_is_not_number); |
| 1512 | |
| 1513 | assembler->Bind(÷nd_is_number); |
| 1514 | { |
| 1515 | // Check if {divisor} is a Smi. |
| 1516 | Label divisor_is_smi(assembler), divisor_is_not_smi(assembler); |
| 1517 | assembler->Branch(assembler->WordIsSmi(divisor), &divisor_is_smi, |
| 1518 | &divisor_is_not_smi); |
| 1519 | |
| 1520 | assembler->Bind(&divisor_is_smi); |
| 1521 | { |
| 1522 | // Convert {divisor} to a double and compute {dividend}'s modulus with |
| 1523 | // it. |
| 1524 | var_dividend_float64.Bind(assembler->LoadHeapNumberValue(dividend)); |
| 1525 | var_divisor_float64.Bind(assembler->SmiToFloat64(divisor)); |
| 1526 | assembler->Goto(&do_fmod); |
| 1527 | } |
| 1528 | |
| 1529 | assembler->Bind(&divisor_is_not_smi); |
| 1530 | { |
| 1531 | Node* divisor_map = assembler->LoadMap(divisor); |
| 1532 | |
| 1533 | // Check if {divisor} is a HeapNumber. |
| 1534 | Label divisor_is_number(assembler), |
| 1535 | divisor_is_not_number(assembler, Label::kDeferred); |
| 1536 | assembler->Branch(assembler->WordEqual(divisor_map, number_map), |
| 1537 | &divisor_is_number, &divisor_is_not_number); |
| 1538 | |
| 1539 | assembler->Bind(&divisor_is_number); |
| 1540 | { |
| 1541 | // Both {dividend} and {divisor} are HeapNumbers. Load their values |
| 1542 | // and compute their modulus. |
| 1543 | var_dividend_float64.Bind(assembler->LoadHeapNumberValue(dividend)); |
| 1544 | var_divisor_float64.Bind(assembler->LoadHeapNumberValue(divisor)); |
| 1545 | assembler->Goto(&do_fmod); |
| 1546 | } |
| 1547 | |
| 1548 | assembler->Bind(&divisor_is_not_number); |
| 1549 | { |
| 1550 | // Convert {divisor} to a number and loop. |
| 1551 | Callable callable = |
| 1552 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 1553 | var_divisor.Bind(assembler->CallStub(callable, context, divisor)); |
| 1554 | assembler->Goto(&loop); |
| 1555 | } |
| 1556 | } |
| 1557 | } |
| 1558 | |
| 1559 | assembler->Bind(÷nd_is_not_number); |
| 1560 | { |
| 1561 | // Convert {dividend} to a Number and loop. |
| 1562 | Callable callable = |
| 1563 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 1564 | var_dividend.Bind(assembler->CallStub(callable, context, dividend)); |
| 1565 | assembler->Goto(&loop); |
| 1566 | } |
| 1567 | } |
| 1568 | } |
| 1569 | |
| 1570 | assembler->Bind(&do_fmod); |
| 1571 | { |
| 1572 | Node* value = assembler->Float64Mod(var_dividend_float64.value(), |
| 1573 | var_divisor_float64.value()); |
| 1574 | Node* result = assembler->ChangeFloat64ToTagged(value); |
| 1575 | return result; |
| 1576 | } |
| 1577 | } |
| 1578 | |
| 1579 | // static |
| 1580 | compiler::Node* ShiftLeftStub::Generate(CodeStubAssembler* assembler, |
| 1581 | compiler::Node* left, |
| 1582 | compiler::Node* right, |
| 1583 | compiler::Node* context) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1584 | using compiler::Node; |
| 1585 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1586 | Node* lhs_value = assembler->TruncateTaggedToWord32(context, left); |
| 1587 | Node* rhs_value = assembler->TruncateTaggedToWord32(context, right); |
| 1588 | Node* shift_count = |
| 1589 | assembler->Word32And(rhs_value, assembler->Int32Constant(0x1f)); |
| 1590 | Node* value = assembler->Word32Shl(lhs_value, shift_count); |
| 1591 | Node* result = assembler->ChangeInt32ToTagged(value); |
| 1592 | return result; |
| 1593 | } |
| 1594 | |
| 1595 | // static |
| 1596 | compiler::Node* ShiftRightStub::Generate(CodeStubAssembler* assembler, |
| 1597 | compiler::Node* left, |
| 1598 | compiler::Node* right, |
| 1599 | compiler::Node* context) { |
| 1600 | using compiler::Node; |
| 1601 | |
| 1602 | Node* lhs_value = assembler->TruncateTaggedToWord32(context, left); |
| 1603 | Node* rhs_value = assembler->TruncateTaggedToWord32(context, right); |
| 1604 | Node* shift_count = |
| 1605 | assembler->Word32And(rhs_value, assembler->Int32Constant(0x1f)); |
| 1606 | Node* value = assembler->Word32Sar(lhs_value, shift_count); |
| 1607 | Node* result = assembler->ChangeInt32ToTagged(value); |
| 1608 | return result; |
| 1609 | } |
| 1610 | |
| 1611 | // static |
| 1612 | compiler::Node* ShiftRightLogicalStub::Generate(CodeStubAssembler* assembler, |
| 1613 | compiler::Node* left, |
| 1614 | compiler::Node* right, |
| 1615 | compiler::Node* context) { |
| 1616 | using compiler::Node; |
| 1617 | |
| 1618 | Node* lhs_value = assembler->TruncateTaggedToWord32(context, left); |
| 1619 | Node* rhs_value = assembler->TruncateTaggedToWord32(context, right); |
| 1620 | Node* shift_count = |
| 1621 | assembler->Word32And(rhs_value, assembler->Int32Constant(0x1f)); |
| 1622 | Node* value = assembler->Word32Shr(lhs_value, shift_count); |
| 1623 | Node* result = assembler->ChangeUint32ToTagged(value); |
| 1624 | return result; |
| 1625 | } |
| 1626 | |
| 1627 | // static |
| 1628 | compiler::Node* BitwiseAndStub::Generate(CodeStubAssembler* assembler, |
| 1629 | compiler::Node* left, |
| 1630 | compiler::Node* right, |
| 1631 | compiler::Node* context) { |
| 1632 | using compiler::Node; |
| 1633 | |
| 1634 | Node* lhs_value = assembler->TruncateTaggedToWord32(context, left); |
| 1635 | Node* rhs_value = assembler->TruncateTaggedToWord32(context, right); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1636 | Node* value = assembler->Word32And(lhs_value, rhs_value); |
| 1637 | Node* result = assembler->ChangeInt32ToTagged(value); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1638 | return result; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1639 | } |
| 1640 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1641 | // static |
| 1642 | compiler::Node* BitwiseOrStub::Generate(CodeStubAssembler* assembler, |
| 1643 | compiler::Node* left, |
| 1644 | compiler::Node* right, |
| 1645 | compiler::Node* context) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1646 | using compiler::Node; |
| 1647 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1648 | Node* lhs_value = assembler->TruncateTaggedToWord32(context, left); |
| 1649 | Node* rhs_value = assembler->TruncateTaggedToWord32(context, right); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1650 | Node* value = assembler->Word32Or(lhs_value, rhs_value); |
| 1651 | Node* result = assembler->ChangeInt32ToTagged(value); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1652 | return result; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1653 | } |
| 1654 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1655 | // static |
| 1656 | compiler::Node* BitwiseXorStub::Generate(CodeStubAssembler* assembler, |
| 1657 | compiler::Node* left, |
| 1658 | compiler::Node* right, |
| 1659 | compiler::Node* context) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1660 | using compiler::Node; |
| 1661 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1662 | Node* lhs_value = assembler->TruncateTaggedToWord32(context, left); |
| 1663 | Node* rhs_value = assembler->TruncateTaggedToWord32(context, right); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1664 | Node* value = assembler->Word32Xor(lhs_value, rhs_value); |
| 1665 | Node* result = assembler->ChangeInt32ToTagged(value); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1666 | return result; |
| 1667 | } |
| 1668 | |
| 1669 | // static |
| 1670 | compiler::Node* IncStub::Generate(CodeStubAssembler* assembler, |
| 1671 | compiler::Node* value, |
| 1672 | compiler::Node* context) { |
| 1673 | typedef CodeStubAssembler::Label Label; |
| 1674 | typedef compiler::Node Node; |
| 1675 | typedef CodeStubAssembler::Variable Variable; |
| 1676 | |
| 1677 | // Shared entry for floating point increment. |
| 1678 | Label do_finc(assembler), end(assembler); |
| 1679 | Variable var_finc_value(assembler, MachineRepresentation::kFloat64); |
| 1680 | |
| 1681 | // We might need to try again due to ToNumber conversion. |
| 1682 | Variable value_var(assembler, MachineRepresentation::kTagged); |
| 1683 | Variable result_var(assembler, MachineRepresentation::kTagged); |
| 1684 | Label start(assembler, &value_var); |
| 1685 | value_var.Bind(value); |
| 1686 | assembler->Goto(&start); |
| 1687 | assembler->Bind(&start); |
| 1688 | { |
| 1689 | value = value_var.value(); |
| 1690 | |
| 1691 | Label if_issmi(assembler), if_isnotsmi(assembler); |
| 1692 | assembler->Branch(assembler->WordIsSmi(value), &if_issmi, &if_isnotsmi); |
| 1693 | |
| 1694 | assembler->Bind(&if_issmi); |
| 1695 | { |
| 1696 | // Try fast Smi addition first. |
| 1697 | Node* one = assembler->SmiConstant(Smi::FromInt(1)); |
| 1698 | Node* pair = assembler->SmiAddWithOverflow(value, one); |
| 1699 | Node* overflow = assembler->Projection(1, pair); |
| 1700 | |
| 1701 | // Check if the Smi additon overflowed. |
| 1702 | Label if_overflow(assembler), if_notoverflow(assembler); |
| 1703 | assembler->Branch(overflow, &if_overflow, &if_notoverflow); |
| 1704 | |
| 1705 | assembler->Bind(&if_notoverflow); |
| 1706 | result_var.Bind(assembler->Projection(0, pair)); |
| 1707 | assembler->Goto(&end); |
| 1708 | |
| 1709 | assembler->Bind(&if_overflow); |
| 1710 | { |
| 1711 | var_finc_value.Bind(assembler->SmiToFloat64(value)); |
| 1712 | assembler->Goto(&do_finc); |
| 1713 | } |
| 1714 | } |
| 1715 | |
| 1716 | assembler->Bind(&if_isnotsmi); |
| 1717 | { |
| 1718 | // Check if the value is a HeapNumber. |
| 1719 | Label if_valueisnumber(assembler), |
| 1720 | if_valuenotnumber(assembler, Label::kDeferred); |
| 1721 | Node* value_map = assembler->LoadMap(value); |
| 1722 | Node* number_map = assembler->HeapNumberMapConstant(); |
| 1723 | assembler->Branch(assembler->WordEqual(value_map, number_map), |
| 1724 | &if_valueisnumber, &if_valuenotnumber); |
| 1725 | |
| 1726 | assembler->Bind(&if_valueisnumber); |
| 1727 | { |
| 1728 | // Load the HeapNumber value. |
| 1729 | var_finc_value.Bind(assembler->LoadHeapNumberValue(value)); |
| 1730 | assembler->Goto(&do_finc); |
| 1731 | } |
| 1732 | |
| 1733 | assembler->Bind(&if_valuenotnumber); |
| 1734 | { |
| 1735 | // Convert to a Number first and try again. |
| 1736 | Callable callable = |
| 1737 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 1738 | value_var.Bind(assembler->CallStub(callable, context, value)); |
| 1739 | assembler->Goto(&start); |
| 1740 | } |
| 1741 | } |
| 1742 | } |
| 1743 | |
| 1744 | assembler->Bind(&do_finc); |
| 1745 | { |
| 1746 | Node* finc_value = var_finc_value.value(); |
| 1747 | Node* one = assembler->Float64Constant(1.0); |
| 1748 | Node* finc_result = assembler->Float64Add(finc_value, one); |
| 1749 | result_var.Bind(assembler->ChangeFloat64ToTagged(finc_result)); |
| 1750 | assembler->Goto(&end); |
| 1751 | } |
| 1752 | |
| 1753 | assembler->Bind(&end); |
| 1754 | return result_var.value(); |
| 1755 | } |
| 1756 | |
| 1757 | // static |
| 1758 | compiler::Node* DecStub::Generate(CodeStubAssembler* assembler, |
| 1759 | compiler::Node* value, |
| 1760 | compiler::Node* context) { |
| 1761 | typedef CodeStubAssembler::Label Label; |
| 1762 | typedef compiler::Node Node; |
| 1763 | typedef CodeStubAssembler::Variable Variable; |
| 1764 | |
| 1765 | // Shared entry for floating point decrement. |
| 1766 | Label do_fdec(assembler), end(assembler); |
| 1767 | Variable var_fdec_value(assembler, MachineRepresentation::kFloat64); |
| 1768 | |
| 1769 | // We might need to try again due to ToNumber conversion. |
| 1770 | Variable value_var(assembler, MachineRepresentation::kTagged); |
| 1771 | Variable result_var(assembler, MachineRepresentation::kTagged); |
| 1772 | Label start(assembler, &value_var); |
| 1773 | value_var.Bind(value); |
| 1774 | assembler->Goto(&start); |
| 1775 | assembler->Bind(&start); |
| 1776 | { |
| 1777 | value = value_var.value(); |
| 1778 | |
| 1779 | Label if_issmi(assembler), if_isnotsmi(assembler); |
| 1780 | assembler->Branch(assembler->WordIsSmi(value), &if_issmi, &if_isnotsmi); |
| 1781 | |
| 1782 | assembler->Bind(&if_issmi); |
| 1783 | { |
| 1784 | // Try fast Smi subtraction first. |
| 1785 | Node* one = assembler->SmiConstant(Smi::FromInt(1)); |
| 1786 | Node* pair = assembler->SmiSubWithOverflow(value, one); |
| 1787 | Node* overflow = assembler->Projection(1, pair); |
| 1788 | |
| 1789 | // Check if the Smi subtraction overflowed. |
| 1790 | Label if_overflow(assembler), if_notoverflow(assembler); |
| 1791 | assembler->Branch(overflow, &if_overflow, &if_notoverflow); |
| 1792 | |
| 1793 | assembler->Bind(&if_notoverflow); |
| 1794 | result_var.Bind(assembler->Projection(0, pair)); |
| 1795 | assembler->Goto(&end); |
| 1796 | |
| 1797 | assembler->Bind(&if_overflow); |
| 1798 | { |
| 1799 | var_fdec_value.Bind(assembler->SmiToFloat64(value)); |
| 1800 | assembler->Goto(&do_fdec); |
| 1801 | } |
| 1802 | } |
| 1803 | |
| 1804 | assembler->Bind(&if_isnotsmi); |
| 1805 | { |
| 1806 | // Check if the value is a HeapNumber. |
| 1807 | Label if_valueisnumber(assembler), |
| 1808 | if_valuenotnumber(assembler, Label::kDeferred); |
| 1809 | Node* value_map = assembler->LoadMap(value); |
| 1810 | Node* number_map = assembler->HeapNumberMapConstant(); |
| 1811 | assembler->Branch(assembler->WordEqual(value_map, number_map), |
| 1812 | &if_valueisnumber, &if_valuenotnumber); |
| 1813 | |
| 1814 | assembler->Bind(&if_valueisnumber); |
| 1815 | { |
| 1816 | // Load the HeapNumber value. |
| 1817 | var_fdec_value.Bind(assembler->LoadHeapNumberValue(value)); |
| 1818 | assembler->Goto(&do_fdec); |
| 1819 | } |
| 1820 | |
| 1821 | assembler->Bind(&if_valuenotnumber); |
| 1822 | { |
| 1823 | // Convert to a Number first and try again. |
| 1824 | Callable callable = |
| 1825 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 1826 | value_var.Bind(assembler->CallStub(callable, context, value)); |
| 1827 | assembler->Goto(&start); |
| 1828 | } |
| 1829 | } |
| 1830 | } |
| 1831 | |
| 1832 | assembler->Bind(&do_fdec); |
| 1833 | { |
| 1834 | Node* fdec_value = var_fdec_value.value(); |
| 1835 | Node* one = assembler->Float64Constant(1.0); |
| 1836 | Node* fdec_result = assembler->Float64Sub(fdec_value, one); |
| 1837 | result_var.Bind(assembler->ChangeFloat64ToTagged(fdec_result)); |
| 1838 | assembler->Goto(&end); |
| 1839 | } |
| 1840 | |
| 1841 | assembler->Bind(&end); |
| 1842 | return result_var.value(); |
| 1843 | } |
| 1844 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1845 | // static |
| 1846 | compiler::Node* InstanceOfStub::Generate(CodeStubAssembler* assembler, |
| 1847 | compiler::Node* object, |
| 1848 | compiler::Node* callable, |
| 1849 | compiler::Node* context) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1850 | typedef CodeStubAssembler::Label Label; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1851 | typedef CodeStubAssembler::Variable Variable; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1852 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1853 | Label return_runtime(assembler, Label::kDeferred), end(assembler); |
| 1854 | Variable result(assembler, MachineRepresentation::kTagged); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1855 | |
| 1856 | // Check if no one installed @@hasInstance somewhere. |
| 1857 | assembler->GotoUnless( |
| 1858 | assembler->WordEqual( |
| 1859 | assembler->LoadObjectField( |
| 1860 | assembler->LoadRoot(Heap::kHasInstanceProtectorRootIndex), |
| 1861 | PropertyCell::kValueOffset), |
| 1862 | assembler->SmiConstant(Smi::FromInt(Isolate::kArrayProtectorValid))), |
| 1863 | &return_runtime); |
| 1864 | |
| 1865 | // Check if {callable} is a valid receiver. |
| 1866 | assembler->GotoIf(assembler->WordIsSmi(callable), &return_runtime); |
| 1867 | assembler->GotoIf( |
| 1868 | assembler->Word32Equal( |
| 1869 | assembler->Word32And( |
| 1870 | assembler->LoadMapBitField(assembler->LoadMap(callable)), |
| 1871 | assembler->Int32Constant(1 << Map::kIsCallable)), |
| 1872 | assembler->Int32Constant(0)), |
| 1873 | &return_runtime); |
| 1874 | |
| 1875 | // Use the inline OrdinaryHasInstance directly. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1876 | result.Bind(assembler->OrdinaryHasInstance(context, callable, object)); |
| 1877 | assembler->Goto(&end); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1878 | |
| 1879 | // TODO(bmeurer): Use GetPropertyStub here once available. |
| 1880 | assembler->Bind(&return_runtime); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1881 | { |
| 1882 | result.Bind(assembler->CallRuntime(Runtime::kInstanceOf, context, object, |
| 1883 | callable)); |
| 1884 | assembler->Goto(&end); |
| 1885 | } |
| 1886 | |
| 1887 | assembler->Bind(&end); |
| 1888 | return result.value(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1889 | } |
| 1890 | |
| 1891 | namespace { |
| 1892 | |
| 1893 | enum RelationalComparisonMode { |
| 1894 | kLessThan, |
| 1895 | kLessThanOrEqual, |
| 1896 | kGreaterThan, |
| 1897 | kGreaterThanOrEqual |
| 1898 | }; |
| 1899 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1900 | compiler::Node* GenerateAbstractRelationalComparison( |
| 1901 | CodeStubAssembler* assembler, RelationalComparisonMode mode, |
| 1902 | compiler::Node* lhs, compiler::Node* rhs, compiler::Node* context) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1903 | typedef CodeStubAssembler::Label Label; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1904 | typedef compiler::Node Node; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1905 | typedef CodeStubAssembler::Variable Variable; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1906 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1907 | Label return_true(assembler), return_false(assembler), end(assembler); |
| 1908 | Variable result(assembler, MachineRepresentation::kTagged); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1909 | |
| 1910 | // Shared entry for floating point comparison. |
| 1911 | Label do_fcmp(assembler); |
| 1912 | Variable var_fcmp_lhs(assembler, MachineRepresentation::kFloat64), |
| 1913 | var_fcmp_rhs(assembler, MachineRepresentation::kFloat64); |
| 1914 | |
| 1915 | // We might need to loop several times due to ToPrimitive and/or ToNumber |
| 1916 | // conversions. |
| 1917 | Variable var_lhs(assembler, MachineRepresentation::kTagged), |
| 1918 | var_rhs(assembler, MachineRepresentation::kTagged); |
| 1919 | Variable* loop_vars[2] = {&var_lhs, &var_rhs}; |
| 1920 | Label loop(assembler, 2, loop_vars); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1921 | var_lhs.Bind(lhs); |
| 1922 | var_rhs.Bind(rhs); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1923 | assembler->Goto(&loop); |
| 1924 | assembler->Bind(&loop); |
| 1925 | { |
| 1926 | // Load the current {lhs} and {rhs} values. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1927 | lhs = var_lhs.value(); |
| 1928 | rhs = var_rhs.value(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1929 | |
| 1930 | // Check if the {lhs} is a Smi or a HeapObject. |
| 1931 | Label if_lhsissmi(assembler), if_lhsisnotsmi(assembler); |
| 1932 | assembler->Branch(assembler->WordIsSmi(lhs), &if_lhsissmi, &if_lhsisnotsmi); |
| 1933 | |
| 1934 | assembler->Bind(&if_lhsissmi); |
| 1935 | { |
| 1936 | // Check if {rhs} is a Smi or a HeapObject. |
| 1937 | Label if_rhsissmi(assembler), if_rhsisnotsmi(assembler); |
| 1938 | assembler->Branch(assembler->WordIsSmi(rhs), &if_rhsissmi, |
| 1939 | &if_rhsisnotsmi); |
| 1940 | |
| 1941 | assembler->Bind(&if_rhsissmi); |
| 1942 | { |
| 1943 | // Both {lhs} and {rhs} are Smi, so just perform a fast Smi comparison. |
| 1944 | switch (mode) { |
| 1945 | case kLessThan: |
| 1946 | assembler->BranchIfSmiLessThan(lhs, rhs, &return_true, |
| 1947 | &return_false); |
| 1948 | break; |
| 1949 | case kLessThanOrEqual: |
| 1950 | assembler->BranchIfSmiLessThanOrEqual(lhs, rhs, &return_true, |
| 1951 | &return_false); |
| 1952 | break; |
| 1953 | case kGreaterThan: |
| 1954 | assembler->BranchIfSmiLessThan(rhs, lhs, &return_true, |
| 1955 | &return_false); |
| 1956 | break; |
| 1957 | case kGreaterThanOrEqual: |
| 1958 | assembler->BranchIfSmiLessThanOrEqual(rhs, lhs, &return_true, |
| 1959 | &return_false); |
| 1960 | break; |
| 1961 | } |
| 1962 | } |
| 1963 | |
| 1964 | assembler->Bind(&if_rhsisnotsmi); |
| 1965 | { |
| 1966 | // Load the map of {rhs}. |
| 1967 | Node* rhs_map = assembler->LoadMap(rhs); |
| 1968 | |
| 1969 | // Check if the {rhs} is a HeapNumber. |
| 1970 | Node* number_map = assembler->HeapNumberMapConstant(); |
| 1971 | Label if_rhsisnumber(assembler), |
| 1972 | if_rhsisnotnumber(assembler, Label::kDeferred); |
| 1973 | assembler->Branch(assembler->WordEqual(rhs_map, number_map), |
| 1974 | &if_rhsisnumber, &if_rhsisnotnumber); |
| 1975 | |
| 1976 | assembler->Bind(&if_rhsisnumber); |
| 1977 | { |
| 1978 | // Convert the {lhs} and {rhs} to floating point values, and |
| 1979 | // perform a floating point comparison. |
| 1980 | var_fcmp_lhs.Bind(assembler->SmiToFloat64(lhs)); |
| 1981 | var_fcmp_rhs.Bind(assembler->LoadHeapNumberValue(rhs)); |
| 1982 | assembler->Goto(&do_fcmp); |
| 1983 | } |
| 1984 | |
| 1985 | assembler->Bind(&if_rhsisnotnumber); |
| 1986 | { |
| 1987 | // Convert the {rhs} to a Number; we don't need to perform the |
| 1988 | // dedicated ToPrimitive(rhs, hint Number) operation, as the |
| 1989 | // ToNumber(rhs) will by itself already invoke ToPrimitive with |
| 1990 | // a Number hint. |
| 1991 | Callable callable = |
| 1992 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 1993 | var_rhs.Bind(assembler->CallStub(callable, context, rhs)); |
| 1994 | assembler->Goto(&loop); |
| 1995 | } |
| 1996 | } |
| 1997 | } |
| 1998 | |
| 1999 | assembler->Bind(&if_lhsisnotsmi); |
| 2000 | { |
| 2001 | // Load the HeapNumber map for later comparisons. |
| 2002 | Node* number_map = assembler->HeapNumberMapConstant(); |
| 2003 | |
| 2004 | // Load the map of {lhs}. |
| 2005 | Node* lhs_map = assembler->LoadMap(lhs); |
| 2006 | |
| 2007 | // Check if {rhs} is a Smi or a HeapObject. |
| 2008 | Label if_rhsissmi(assembler), if_rhsisnotsmi(assembler); |
| 2009 | assembler->Branch(assembler->WordIsSmi(rhs), &if_rhsissmi, |
| 2010 | &if_rhsisnotsmi); |
| 2011 | |
| 2012 | assembler->Bind(&if_rhsissmi); |
| 2013 | { |
| 2014 | // Check if the {lhs} is a HeapNumber. |
| 2015 | Label if_lhsisnumber(assembler), |
| 2016 | if_lhsisnotnumber(assembler, Label::kDeferred); |
| 2017 | assembler->Branch(assembler->WordEqual(lhs_map, number_map), |
| 2018 | &if_lhsisnumber, &if_lhsisnotnumber); |
| 2019 | |
| 2020 | assembler->Bind(&if_lhsisnumber); |
| 2021 | { |
| 2022 | // Convert the {lhs} and {rhs} to floating point values, and |
| 2023 | // perform a floating point comparison. |
| 2024 | var_fcmp_lhs.Bind(assembler->LoadHeapNumberValue(lhs)); |
| 2025 | var_fcmp_rhs.Bind(assembler->SmiToFloat64(rhs)); |
| 2026 | assembler->Goto(&do_fcmp); |
| 2027 | } |
| 2028 | |
| 2029 | assembler->Bind(&if_lhsisnotnumber); |
| 2030 | { |
| 2031 | // Convert the {lhs} to a Number; we don't need to perform the |
| 2032 | // dedicated ToPrimitive(lhs, hint Number) operation, as the |
| 2033 | // ToNumber(lhs) will by itself already invoke ToPrimitive with |
| 2034 | // a Number hint. |
| 2035 | Callable callable = |
| 2036 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 2037 | var_lhs.Bind(assembler->CallStub(callable, context, lhs)); |
| 2038 | assembler->Goto(&loop); |
| 2039 | } |
| 2040 | } |
| 2041 | |
| 2042 | assembler->Bind(&if_rhsisnotsmi); |
| 2043 | { |
| 2044 | // Load the map of {rhs}. |
| 2045 | Node* rhs_map = assembler->LoadMap(rhs); |
| 2046 | |
| 2047 | // Check if {lhs} is a HeapNumber. |
| 2048 | Label if_lhsisnumber(assembler), if_lhsisnotnumber(assembler); |
| 2049 | assembler->Branch(assembler->WordEqual(lhs_map, number_map), |
| 2050 | &if_lhsisnumber, &if_lhsisnotnumber); |
| 2051 | |
| 2052 | assembler->Bind(&if_lhsisnumber); |
| 2053 | { |
| 2054 | // Check if {rhs} is also a HeapNumber. |
| 2055 | Label if_rhsisnumber(assembler), |
| 2056 | if_rhsisnotnumber(assembler, Label::kDeferred); |
| 2057 | assembler->Branch(assembler->WordEqual(lhs_map, rhs_map), |
| 2058 | &if_rhsisnumber, &if_rhsisnotnumber); |
| 2059 | |
| 2060 | assembler->Bind(&if_rhsisnumber); |
| 2061 | { |
| 2062 | // Convert the {lhs} and {rhs} to floating point values, and |
| 2063 | // perform a floating point comparison. |
| 2064 | var_fcmp_lhs.Bind(assembler->LoadHeapNumberValue(lhs)); |
| 2065 | var_fcmp_rhs.Bind(assembler->LoadHeapNumberValue(rhs)); |
| 2066 | assembler->Goto(&do_fcmp); |
| 2067 | } |
| 2068 | |
| 2069 | assembler->Bind(&if_rhsisnotnumber); |
| 2070 | { |
| 2071 | // Convert the {rhs} to a Number; we don't need to perform |
| 2072 | // dedicated ToPrimitive(rhs, hint Number) operation, as the |
| 2073 | // ToNumber(rhs) will by itself already invoke ToPrimitive with |
| 2074 | // a Number hint. |
| 2075 | Callable callable = |
| 2076 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 2077 | var_rhs.Bind(assembler->CallStub(callable, context, rhs)); |
| 2078 | assembler->Goto(&loop); |
| 2079 | } |
| 2080 | } |
| 2081 | |
| 2082 | assembler->Bind(&if_lhsisnotnumber); |
| 2083 | { |
| 2084 | // Load the instance type of {lhs}. |
| 2085 | Node* lhs_instance_type = assembler->LoadMapInstanceType(lhs_map); |
| 2086 | |
| 2087 | // Check if {lhs} is a String. |
| 2088 | Label if_lhsisstring(assembler), |
| 2089 | if_lhsisnotstring(assembler, Label::kDeferred); |
| 2090 | assembler->Branch(assembler->Int32LessThan( |
| 2091 | lhs_instance_type, |
| 2092 | assembler->Int32Constant(FIRST_NONSTRING_TYPE)), |
| 2093 | &if_lhsisstring, &if_lhsisnotstring); |
| 2094 | |
| 2095 | assembler->Bind(&if_lhsisstring); |
| 2096 | { |
| 2097 | // Load the instance type of {rhs}. |
| 2098 | Node* rhs_instance_type = assembler->LoadMapInstanceType(rhs_map); |
| 2099 | |
| 2100 | // Check if {rhs} is also a String. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2101 | Label if_rhsisstring(assembler, Label::kDeferred), |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2102 | if_rhsisnotstring(assembler, Label::kDeferred); |
| 2103 | assembler->Branch(assembler->Int32LessThan( |
| 2104 | rhs_instance_type, assembler->Int32Constant( |
| 2105 | FIRST_NONSTRING_TYPE)), |
| 2106 | &if_rhsisstring, &if_rhsisnotstring); |
| 2107 | |
| 2108 | assembler->Bind(&if_rhsisstring); |
| 2109 | { |
| 2110 | // Both {lhs} and {rhs} are strings. |
| 2111 | switch (mode) { |
| 2112 | case kLessThan: |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2113 | result.Bind(assembler->CallStub( |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2114 | CodeFactory::StringLessThan(assembler->isolate()), |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2115 | context, lhs, rhs)); |
| 2116 | assembler->Goto(&end); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2117 | break; |
| 2118 | case kLessThanOrEqual: |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2119 | result.Bind(assembler->CallStub( |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2120 | CodeFactory::StringLessThanOrEqual(assembler->isolate()), |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2121 | context, lhs, rhs)); |
| 2122 | assembler->Goto(&end); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2123 | break; |
| 2124 | case kGreaterThan: |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2125 | result.Bind(assembler->CallStub( |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2126 | CodeFactory::StringGreaterThan(assembler->isolate()), |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2127 | context, lhs, rhs)); |
| 2128 | assembler->Goto(&end); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2129 | break; |
| 2130 | case kGreaterThanOrEqual: |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2131 | result.Bind( |
| 2132 | assembler->CallStub(CodeFactory::StringGreaterThanOrEqual( |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2133 | assembler->isolate()), |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2134 | context, lhs, rhs)); |
| 2135 | assembler->Goto(&end); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2136 | break; |
| 2137 | } |
| 2138 | } |
| 2139 | |
| 2140 | assembler->Bind(&if_rhsisnotstring); |
| 2141 | { |
| 2142 | // The {lhs} is a String, while {rhs} is neither a Number nor a |
| 2143 | // String, so we need to call ToPrimitive(rhs, hint Number) if |
| 2144 | // {rhs} is a receiver or ToNumber(lhs) and ToNumber(rhs) in the |
| 2145 | // other cases. |
| 2146 | STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); |
| 2147 | Label if_rhsisreceiver(assembler, Label::kDeferred), |
| 2148 | if_rhsisnotreceiver(assembler, Label::kDeferred); |
| 2149 | assembler->Branch( |
| 2150 | assembler->Int32LessThanOrEqual( |
| 2151 | assembler->Int32Constant(FIRST_JS_RECEIVER_TYPE), |
| 2152 | rhs_instance_type), |
| 2153 | &if_rhsisreceiver, &if_rhsisnotreceiver); |
| 2154 | |
| 2155 | assembler->Bind(&if_rhsisreceiver); |
| 2156 | { |
| 2157 | // Convert {rhs} to a primitive first passing Number hint. |
| 2158 | // TODO(bmeurer): Hook up ToPrimitiveStub here, once it's there. |
| 2159 | var_rhs.Bind(assembler->CallRuntime( |
| 2160 | Runtime::kToPrimitive_Number, context, rhs)); |
| 2161 | assembler->Goto(&loop); |
| 2162 | } |
| 2163 | |
| 2164 | assembler->Bind(&if_rhsisnotreceiver); |
| 2165 | { |
| 2166 | // Convert both {lhs} and {rhs} to Number. |
| 2167 | Callable callable = CodeFactory::ToNumber(assembler->isolate()); |
| 2168 | var_lhs.Bind(assembler->CallStub(callable, context, lhs)); |
| 2169 | var_rhs.Bind(assembler->CallStub(callable, context, rhs)); |
| 2170 | assembler->Goto(&loop); |
| 2171 | } |
| 2172 | } |
| 2173 | } |
| 2174 | |
| 2175 | assembler->Bind(&if_lhsisnotstring); |
| 2176 | { |
| 2177 | // The {lhs} is neither a Number nor a String, so we need to call |
| 2178 | // ToPrimitive(lhs, hint Number) if {lhs} is a receiver or |
| 2179 | // ToNumber(lhs) and ToNumber(rhs) in the other cases. |
| 2180 | STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); |
| 2181 | Label if_lhsisreceiver(assembler, Label::kDeferred), |
| 2182 | if_lhsisnotreceiver(assembler, Label::kDeferred); |
| 2183 | assembler->Branch( |
| 2184 | assembler->Int32LessThanOrEqual( |
| 2185 | assembler->Int32Constant(FIRST_JS_RECEIVER_TYPE), |
| 2186 | lhs_instance_type), |
| 2187 | &if_lhsisreceiver, &if_lhsisnotreceiver); |
| 2188 | |
| 2189 | assembler->Bind(&if_lhsisreceiver); |
| 2190 | { |
| 2191 | // Convert {lhs} to a primitive first passing Number hint. |
| 2192 | // TODO(bmeurer): Hook up ToPrimitiveStub here, once it's there. |
| 2193 | var_lhs.Bind(assembler->CallRuntime(Runtime::kToPrimitive_Number, |
| 2194 | context, lhs)); |
| 2195 | assembler->Goto(&loop); |
| 2196 | } |
| 2197 | |
| 2198 | assembler->Bind(&if_lhsisnotreceiver); |
| 2199 | { |
| 2200 | // Convert both {lhs} and {rhs} to Number. |
| 2201 | Callable callable = CodeFactory::ToNumber(assembler->isolate()); |
| 2202 | var_lhs.Bind(assembler->CallStub(callable, context, lhs)); |
| 2203 | var_rhs.Bind(assembler->CallStub(callable, context, rhs)); |
| 2204 | assembler->Goto(&loop); |
| 2205 | } |
| 2206 | } |
| 2207 | } |
| 2208 | } |
| 2209 | } |
| 2210 | } |
| 2211 | |
| 2212 | assembler->Bind(&do_fcmp); |
| 2213 | { |
| 2214 | // Load the {lhs} and {rhs} floating point values. |
| 2215 | Node* lhs = var_fcmp_lhs.value(); |
| 2216 | Node* rhs = var_fcmp_rhs.value(); |
| 2217 | |
| 2218 | // Perform a fast floating point comparison. |
| 2219 | switch (mode) { |
| 2220 | case kLessThan: |
| 2221 | assembler->BranchIfFloat64LessThan(lhs, rhs, &return_true, |
| 2222 | &return_false); |
| 2223 | break; |
| 2224 | case kLessThanOrEqual: |
| 2225 | assembler->BranchIfFloat64LessThanOrEqual(lhs, rhs, &return_true, |
| 2226 | &return_false); |
| 2227 | break; |
| 2228 | case kGreaterThan: |
| 2229 | assembler->BranchIfFloat64GreaterThan(lhs, rhs, &return_true, |
| 2230 | &return_false); |
| 2231 | break; |
| 2232 | case kGreaterThanOrEqual: |
| 2233 | assembler->BranchIfFloat64GreaterThanOrEqual(lhs, rhs, &return_true, |
| 2234 | &return_false); |
| 2235 | break; |
| 2236 | } |
| 2237 | } |
| 2238 | |
| 2239 | assembler->Bind(&return_true); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2240 | { |
| 2241 | result.Bind(assembler->BooleanConstant(true)); |
| 2242 | assembler->Goto(&end); |
| 2243 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2244 | |
| 2245 | assembler->Bind(&return_false); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2246 | { |
| 2247 | result.Bind(assembler->BooleanConstant(false)); |
| 2248 | assembler->Goto(&end); |
| 2249 | } |
| 2250 | |
| 2251 | assembler->Bind(&end); |
| 2252 | return result.value(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2253 | } |
| 2254 | |
| 2255 | enum ResultMode { kDontNegateResult, kNegateResult }; |
| 2256 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2257 | void GenerateEqual_Same(CodeStubAssembler* assembler, compiler::Node* value, |
| 2258 | CodeStubAssembler::Label* if_equal, |
| 2259 | CodeStubAssembler::Label* if_notequal) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2260 | // In case of abstract or strict equality checks, we need additional checks |
| 2261 | // for NaN values because they are not considered equal, even if both the |
| 2262 | // left and the right hand side reference exactly the same value. |
| 2263 | // TODO(bmeurer): This seems to violate the SIMD.js specification, but it |
| 2264 | // seems to be what is tested in the current SIMD.js testsuite. |
| 2265 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2266 | typedef CodeStubAssembler::Label Label; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2267 | typedef compiler::Node Node; |
| 2268 | |
| 2269 | // Check if {value} is a Smi or a HeapObject. |
| 2270 | Label if_valueissmi(assembler), if_valueisnotsmi(assembler); |
| 2271 | assembler->Branch(assembler->WordIsSmi(value), &if_valueissmi, |
| 2272 | &if_valueisnotsmi); |
| 2273 | |
| 2274 | assembler->Bind(&if_valueisnotsmi); |
| 2275 | { |
| 2276 | // Load the map of {value}. |
| 2277 | Node* value_map = assembler->LoadMap(value); |
| 2278 | |
| 2279 | // Check if {value} (and therefore {rhs}) is a HeapNumber. |
| 2280 | Node* number_map = assembler->HeapNumberMapConstant(); |
| 2281 | Label if_valueisnumber(assembler), if_valueisnotnumber(assembler); |
| 2282 | assembler->Branch(assembler->WordEqual(value_map, number_map), |
| 2283 | &if_valueisnumber, &if_valueisnotnumber); |
| 2284 | |
| 2285 | assembler->Bind(&if_valueisnumber); |
| 2286 | { |
| 2287 | // Convert {value} (and therefore {rhs}) to floating point value. |
| 2288 | Node* value_value = assembler->LoadHeapNumberValue(value); |
| 2289 | |
| 2290 | // Check if the HeapNumber value is a NaN. |
| 2291 | assembler->BranchIfFloat64IsNaN(value_value, if_notequal, if_equal); |
| 2292 | } |
| 2293 | |
| 2294 | assembler->Bind(&if_valueisnotnumber); |
| 2295 | assembler->Goto(if_equal); |
| 2296 | } |
| 2297 | |
| 2298 | assembler->Bind(&if_valueissmi); |
| 2299 | assembler->Goto(if_equal); |
| 2300 | } |
| 2301 | |
| 2302 | void GenerateEqual_Simd128Value_HeapObject( |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2303 | CodeStubAssembler* assembler, compiler::Node* lhs, compiler::Node* lhs_map, |
| 2304 | compiler::Node* rhs, compiler::Node* rhs_map, |
| 2305 | CodeStubAssembler::Label* if_equal, CodeStubAssembler::Label* if_notequal) { |
| 2306 | typedef CodeStubAssembler::Label Label; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2307 | typedef compiler::Node Node; |
| 2308 | |
| 2309 | // Check if {lhs} and {rhs} have the same map. |
| 2310 | Label if_mapsame(assembler), if_mapnotsame(assembler); |
| 2311 | assembler->Branch(assembler->WordEqual(lhs_map, rhs_map), &if_mapsame, |
| 2312 | &if_mapnotsame); |
| 2313 | |
| 2314 | assembler->Bind(&if_mapsame); |
| 2315 | { |
| 2316 | // Both {lhs} and {rhs} are Simd128Values with the same map, need special |
| 2317 | // handling for Float32x4 because of NaN comparisons. |
| 2318 | Label if_float32x4(assembler), if_notfloat32x4(assembler); |
| 2319 | Node* float32x4_map = |
| 2320 | assembler->HeapConstant(assembler->factory()->float32x4_map()); |
| 2321 | assembler->Branch(assembler->WordEqual(lhs_map, float32x4_map), |
| 2322 | &if_float32x4, &if_notfloat32x4); |
| 2323 | |
| 2324 | assembler->Bind(&if_float32x4); |
| 2325 | { |
| 2326 | // Both {lhs} and {rhs} are Float32x4, compare the lanes individually |
| 2327 | // using a floating point comparison. |
| 2328 | for (int offset = Float32x4::kValueOffset - kHeapObjectTag; |
| 2329 | offset < Float32x4::kSize - kHeapObjectTag; |
| 2330 | offset += sizeof(float)) { |
| 2331 | // Load the floating point values for {lhs} and {rhs}. |
| 2332 | Node* lhs_value = assembler->Load(MachineType::Float32(), lhs, |
| 2333 | assembler->IntPtrConstant(offset)); |
| 2334 | Node* rhs_value = assembler->Load(MachineType::Float32(), rhs, |
| 2335 | assembler->IntPtrConstant(offset)); |
| 2336 | |
| 2337 | // Perform a floating point comparison. |
| 2338 | Label if_valueequal(assembler), if_valuenotequal(assembler); |
| 2339 | assembler->Branch(assembler->Float32Equal(lhs_value, rhs_value), |
| 2340 | &if_valueequal, &if_valuenotequal); |
| 2341 | assembler->Bind(&if_valuenotequal); |
| 2342 | assembler->Goto(if_notequal); |
| 2343 | assembler->Bind(&if_valueequal); |
| 2344 | } |
| 2345 | |
| 2346 | // All 4 lanes match, {lhs} and {rhs} considered equal. |
| 2347 | assembler->Goto(if_equal); |
| 2348 | } |
| 2349 | |
| 2350 | assembler->Bind(&if_notfloat32x4); |
| 2351 | { |
| 2352 | // For other Simd128Values we just perform a bitwise comparison. |
| 2353 | for (int offset = Simd128Value::kValueOffset - kHeapObjectTag; |
| 2354 | offset < Simd128Value::kSize - kHeapObjectTag; |
| 2355 | offset += kPointerSize) { |
| 2356 | // Load the word values for {lhs} and {rhs}. |
| 2357 | Node* lhs_value = assembler->Load(MachineType::Pointer(), lhs, |
| 2358 | assembler->IntPtrConstant(offset)); |
| 2359 | Node* rhs_value = assembler->Load(MachineType::Pointer(), rhs, |
| 2360 | assembler->IntPtrConstant(offset)); |
| 2361 | |
| 2362 | // Perform a bitwise word-comparison. |
| 2363 | Label if_valueequal(assembler), if_valuenotequal(assembler); |
| 2364 | assembler->Branch(assembler->WordEqual(lhs_value, rhs_value), |
| 2365 | &if_valueequal, &if_valuenotequal); |
| 2366 | assembler->Bind(&if_valuenotequal); |
| 2367 | assembler->Goto(if_notequal); |
| 2368 | assembler->Bind(&if_valueequal); |
| 2369 | } |
| 2370 | |
| 2371 | // Bitwise comparison succeeded, {lhs} and {rhs} considered equal. |
| 2372 | assembler->Goto(if_equal); |
| 2373 | } |
| 2374 | } |
| 2375 | |
| 2376 | assembler->Bind(&if_mapnotsame); |
| 2377 | assembler->Goto(if_notequal); |
| 2378 | } |
| 2379 | |
| 2380 | // ES6 section 7.2.12 Abstract Equality Comparison |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2381 | compiler::Node* GenerateEqual(CodeStubAssembler* assembler, ResultMode mode, |
| 2382 | compiler::Node* lhs, compiler::Node* rhs, |
| 2383 | compiler::Node* context) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2384 | // This is a slightly optimized version of Object::Equals represented as |
| 2385 | // scheduled TurboFan graph utilizing the CodeStubAssembler. Whenever you |
| 2386 | // change something functionality wise in here, remember to update the |
| 2387 | // Object::Equals method as well. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2388 | typedef CodeStubAssembler::Label Label; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2389 | typedef compiler::Node Node; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2390 | typedef CodeStubAssembler::Variable Variable; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2391 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2392 | Label if_equal(assembler), if_notequal(assembler), |
| 2393 | do_rhsstringtonumber(assembler, Label::kDeferred), end(assembler); |
| 2394 | Variable result(assembler, MachineRepresentation::kTagged); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2395 | |
| 2396 | // Shared entry for floating point comparison. |
| 2397 | Label do_fcmp(assembler); |
| 2398 | Variable var_fcmp_lhs(assembler, MachineRepresentation::kFloat64), |
| 2399 | var_fcmp_rhs(assembler, MachineRepresentation::kFloat64); |
| 2400 | |
| 2401 | // We might need to loop several times due to ToPrimitive and/or ToNumber |
| 2402 | // conversions. |
| 2403 | Variable var_lhs(assembler, MachineRepresentation::kTagged), |
| 2404 | var_rhs(assembler, MachineRepresentation::kTagged); |
| 2405 | Variable* loop_vars[2] = {&var_lhs, &var_rhs}; |
| 2406 | Label loop(assembler, 2, loop_vars); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2407 | var_lhs.Bind(lhs); |
| 2408 | var_rhs.Bind(rhs); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2409 | assembler->Goto(&loop); |
| 2410 | assembler->Bind(&loop); |
| 2411 | { |
| 2412 | // Load the current {lhs} and {rhs} values. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2413 | lhs = var_lhs.value(); |
| 2414 | rhs = var_rhs.value(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2415 | |
| 2416 | // Check if {lhs} and {rhs} refer to the same object. |
| 2417 | Label if_same(assembler), if_notsame(assembler); |
| 2418 | assembler->Branch(assembler->WordEqual(lhs, rhs), &if_same, &if_notsame); |
| 2419 | |
| 2420 | assembler->Bind(&if_same); |
| 2421 | { |
| 2422 | // The {lhs} and {rhs} reference the exact same value, yet we need special |
| 2423 | // treatment for HeapNumber, as NaN is not equal to NaN. |
| 2424 | GenerateEqual_Same(assembler, lhs, &if_equal, &if_notequal); |
| 2425 | } |
| 2426 | |
| 2427 | assembler->Bind(&if_notsame); |
| 2428 | { |
| 2429 | // Check if {lhs} is a Smi or a HeapObject. |
| 2430 | Label if_lhsissmi(assembler), if_lhsisnotsmi(assembler); |
| 2431 | assembler->Branch(assembler->WordIsSmi(lhs), &if_lhsissmi, |
| 2432 | &if_lhsisnotsmi); |
| 2433 | |
| 2434 | assembler->Bind(&if_lhsissmi); |
| 2435 | { |
| 2436 | // Check if {rhs} is a Smi or a HeapObject. |
| 2437 | Label if_rhsissmi(assembler), if_rhsisnotsmi(assembler); |
| 2438 | assembler->Branch(assembler->WordIsSmi(rhs), &if_rhsissmi, |
| 2439 | &if_rhsisnotsmi); |
| 2440 | |
| 2441 | assembler->Bind(&if_rhsissmi); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2442 | // We have already checked for {lhs} and {rhs} being the same value, so |
| 2443 | // if both are Smis when we get here they must not be equal. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2444 | assembler->Goto(&if_notequal); |
| 2445 | |
| 2446 | assembler->Bind(&if_rhsisnotsmi); |
| 2447 | { |
| 2448 | // Load the map of {rhs}. |
| 2449 | Node* rhs_map = assembler->LoadMap(rhs); |
| 2450 | |
| 2451 | // Check if {rhs} is a HeapNumber. |
| 2452 | Node* number_map = assembler->HeapNumberMapConstant(); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2453 | Label if_rhsisnumber(assembler), if_rhsisnotnumber(assembler); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2454 | assembler->Branch(assembler->WordEqual(rhs_map, number_map), |
| 2455 | &if_rhsisnumber, &if_rhsisnotnumber); |
| 2456 | |
| 2457 | assembler->Bind(&if_rhsisnumber); |
| 2458 | { |
| 2459 | // Convert {lhs} and {rhs} to floating point values, and |
| 2460 | // perform a floating point comparison. |
| 2461 | var_fcmp_lhs.Bind(assembler->SmiToFloat64(lhs)); |
| 2462 | var_fcmp_rhs.Bind(assembler->LoadHeapNumberValue(rhs)); |
| 2463 | assembler->Goto(&do_fcmp); |
| 2464 | } |
| 2465 | |
| 2466 | assembler->Bind(&if_rhsisnotnumber); |
| 2467 | { |
| 2468 | // Load the instance type of the {rhs}. |
| 2469 | Node* rhs_instance_type = assembler->LoadMapInstanceType(rhs_map); |
| 2470 | |
| 2471 | // Check if the {rhs} is a String. |
| 2472 | Label if_rhsisstring(assembler, Label::kDeferred), |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2473 | if_rhsisnotstring(assembler); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2474 | assembler->Branch(assembler->Int32LessThan( |
| 2475 | rhs_instance_type, assembler->Int32Constant( |
| 2476 | FIRST_NONSTRING_TYPE)), |
| 2477 | &if_rhsisstring, &if_rhsisnotstring); |
| 2478 | |
| 2479 | assembler->Bind(&if_rhsisstring); |
| 2480 | { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2481 | // The {rhs} is a String and the {lhs} is a Smi; we need |
| 2482 | // to convert the {rhs} to a Number and compare the output to |
| 2483 | // the Number on the {lhs}. |
| 2484 | assembler->Goto(&do_rhsstringtonumber); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2485 | } |
| 2486 | |
| 2487 | assembler->Bind(&if_rhsisnotstring); |
| 2488 | { |
| 2489 | // Check if the {rhs} is a Boolean. |
| 2490 | Node* boolean_map = assembler->BooleanMapConstant(); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2491 | Label if_rhsisboolean(assembler), if_rhsisnotboolean(assembler); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2492 | assembler->Branch(assembler->WordEqual(rhs_map, boolean_map), |
| 2493 | &if_rhsisboolean, &if_rhsisnotboolean); |
| 2494 | |
| 2495 | assembler->Bind(&if_rhsisboolean); |
| 2496 | { |
| 2497 | // The {rhs} is a Boolean, load its number value. |
| 2498 | var_rhs.Bind( |
| 2499 | assembler->LoadObjectField(rhs, Oddball::kToNumberOffset)); |
| 2500 | assembler->Goto(&loop); |
| 2501 | } |
| 2502 | |
| 2503 | assembler->Bind(&if_rhsisnotboolean); |
| 2504 | { |
| 2505 | // Check if the {rhs} is a Receiver. |
| 2506 | STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); |
| 2507 | Label if_rhsisreceiver(assembler, Label::kDeferred), |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2508 | if_rhsisnotreceiver(assembler); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2509 | assembler->Branch( |
| 2510 | assembler->Int32LessThanOrEqual( |
| 2511 | assembler->Int32Constant(FIRST_JS_RECEIVER_TYPE), |
| 2512 | rhs_instance_type), |
| 2513 | &if_rhsisreceiver, &if_rhsisnotreceiver); |
| 2514 | |
| 2515 | assembler->Bind(&if_rhsisreceiver); |
| 2516 | { |
| 2517 | // Convert {rhs} to a primitive first (passing no hint). |
| 2518 | // TODO(bmeurer): Hook up ToPrimitiveStub here once it exists. |
| 2519 | var_rhs.Bind(assembler->CallRuntime(Runtime::kToPrimitive, |
| 2520 | context, rhs)); |
| 2521 | assembler->Goto(&loop); |
| 2522 | } |
| 2523 | |
| 2524 | assembler->Bind(&if_rhsisnotreceiver); |
| 2525 | assembler->Goto(&if_notequal); |
| 2526 | } |
| 2527 | } |
| 2528 | } |
| 2529 | } |
| 2530 | } |
| 2531 | |
| 2532 | assembler->Bind(&if_lhsisnotsmi); |
| 2533 | { |
| 2534 | // Check if {rhs} is a Smi or a HeapObject. |
| 2535 | Label if_rhsissmi(assembler), if_rhsisnotsmi(assembler); |
| 2536 | assembler->Branch(assembler->WordIsSmi(rhs), &if_rhsissmi, |
| 2537 | &if_rhsisnotsmi); |
| 2538 | |
| 2539 | assembler->Bind(&if_rhsissmi); |
| 2540 | { |
| 2541 | // The {lhs} is a HeapObject and the {rhs} is a Smi; swapping {lhs} |
| 2542 | // and {rhs} is not observable and doesn't matter for the result, so |
| 2543 | // we can just swap them and use the Smi handling above (for {lhs} |
| 2544 | // being a Smi). |
| 2545 | var_lhs.Bind(rhs); |
| 2546 | var_rhs.Bind(lhs); |
| 2547 | assembler->Goto(&loop); |
| 2548 | } |
| 2549 | |
| 2550 | assembler->Bind(&if_rhsisnotsmi); |
| 2551 | { |
| 2552 | Label if_lhsisstring(assembler), if_lhsisnumber(assembler), |
| 2553 | if_lhsissymbol(assembler), if_lhsissimd128value(assembler), |
| 2554 | if_lhsisoddball(assembler), if_lhsisreceiver(assembler); |
| 2555 | |
| 2556 | // Both {lhs} and {rhs} are HeapObjects, load their maps |
| 2557 | // and their instance types. |
| 2558 | Node* lhs_map = assembler->LoadMap(lhs); |
| 2559 | Node* rhs_map = assembler->LoadMap(rhs); |
| 2560 | |
| 2561 | // Load the instance types of {lhs} and {rhs}. |
| 2562 | Node* lhs_instance_type = assembler->LoadMapInstanceType(lhs_map); |
| 2563 | Node* rhs_instance_type = assembler->LoadMapInstanceType(rhs_map); |
| 2564 | |
| 2565 | // Dispatch based on the instance type of {lhs}. |
| 2566 | size_t const kNumCases = FIRST_NONSTRING_TYPE + 4; |
| 2567 | Label* case_labels[kNumCases]; |
| 2568 | int32_t case_values[kNumCases]; |
| 2569 | for (int32_t i = 0; i < FIRST_NONSTRING_TYPE; ++i) { |
| 2570 | case_labels[i] = new Label(assembler); |
| 2571 | case_values[i] = i; |
| 2572 | } |
| 2573 | case_labels[FIRST_NONSTRING_TYPE + 0] = &if_lhsisnumber; |
| 2574 | case_values[FIRST_NONSTRING_TYPE + 0] = HEAP_NUMBER_TYPE; |
| 2575 | case_labels[FIRST_NONSTRING_TYPE + 1] = &if_lhsissymbol; |
| 2576 | case_values[FIRST_NONSTRING_TYPE + 1] = SYMBOL_TYPE; |
| 2577 | case_labels[FIRST_NONSTRING_TYPE + 2] = &if_lhsissimd128value; |
| 2578 | case_values[FIRST_NONSTRING_TYPE + 2] = SIMD128_VALUE_TYPE; |
| 2579 | case_labels[FIRST_NONSTRING_TYPE + 3] = &if_lhsisoddball; |
| 2580 | case_values[FIRST_NONSTRING_TYPE + 3] = ODDBALL_TYPE; |
| 2581 | assembler->Switch(lhs_instance_type, &if_lhsisreceiver, case_values, |
| 2582 | case_labels, arraysize(case_values)); |
| 2583 | for (int32_t i = 0; i < FIRST_NONSTRING_TYPE; ++i) { |
| 2584 | assembler->Bind(case_labels[i]); |
| 2585 | assembler->Goto(&if_lhsisstring); |
| 2586 | delete case_labels[i]; |
| 2587 | } |
| 2588 | |
| 2589 | assembler->Bind(&if_lhsisstring); |
| 2590 | { |
| 2591 | // Check if {rhs} is also a String. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2592 | Label if_rhsisstring(assembler, Label::kDeferred), |
| 2593 | if_rhsisnotstring(assembler); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2594 | assembler->Branch(assembler->Int32LessThan( |
| 2595 | rhs_instance_type, assembler->Int32Constant( |
| 2596 | FIRST_NONSTRING_TYPE)), |
| 2597 | &if_rhsisstring, &if_rhsisnotstring); |
| 2598 | |
| 2599 | assembler->Bind(&if_rhsisstring); |
| 2600 | { |
| 2601 | // Both {lhs} and {rhs} are of type String, just do the |
| 2602 | // string comparison then. |
| 2603 | Callable callable = |
| 2604 | (mode == kDontNegateResult) |
| 2605 | ? CodeFactory::StringEqual(assembler->isolate()) |
| 2606 | : CodeFactory::StringNotEqual(assembler->isolate()); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2607 | result.Bind(assembler->CallStub(callable, context, lhs, rhs)); |
| 2608 | assembler->Goto(&end); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2609 | } |
| 2610 | |
| 2611 | assembler->Bind(&if_rhsisnotstring); |
| 2612 | { |
| 2613 | // The {lhs} is a String and the {rhs} is some other HeapObject. |
| 2614 | // Swapping {lhs} and {rhs} is not observable and doesn't matter |
| 2615 | // for the result, so we can just swap them and use the String |
| 2616 | // handling below (for {rhs} being a String). |
| 2617 | var_lhs.Bind(rhs); |
| 2618 | var_rhs.Bind(lhs); |
| 2619 | assembler->Goto(&loop); |
| 2620 | } |
| 2621 | } |
| 2622 | |
| 2623 | assembler->Bind(&if_lhsisnumber); |
| 2624 | { |
| 2625 | // Check if {rhs} is also a HeapNumber. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2626 | Label if_rhsisnumber(assembler), if_rhsisnotnumber(assembler); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2627 | assembler->Branch( |
| 2628 | assembler->Word32Equal(lhs_instance_type, rhs_instance_type), |
| 2629 | &if_rhsisnumber, &if_rhsisnotnumber); |
| 2630 | |
| 2631 | assembler->Bind(&if_rhsisnumber); |
| 2632 | { |
| 2633 | // Convert {lhs} and {rhs} to floating point values, and |
| 2634 | // perform a floating point comparison. |
| 2635 | var_fcmp_lhs.Bind(assembler->LoadHeapNumberValue(lhs)); |
| 2636 | var_fcmp_rhs.Bind(assembler->LoadHeapNumberValue(rhs)); |
| 2637 | assembler->Goto(&do_fcmp); |
| 2638 | } |
| 2639 | |
| 2640 | assembler->Bind(&if_rhsisnotnumber); |
| 2641 | { |
| 2642 | // The {lhs} is a Number, the {rhs} is some other HeapObject. |
| 2643 | Label if_rhsisstring(assembler, Label::kDeferred), |
| 2644 | if_rhsisnotstring(assembler); |
| 2645 | assembler->Branch( |
| 2646 | assembler->Int32LessThan( |
| 2647 | rhs_instance_type, |
| 2648 | assembler->Int32Constant(FIRST_NONSTRING_TYPE)), |
| 2649 | &if_rhsisstring, &if_rhsisnotstring); |
| 2650 | |
| 2651 | assembler->Bind(&if_rhsisstring); |
| 2652 | { |
| 2653 | // The {rhs} is a String and the {lhs} is a HeapNumber; we need |
| 2654 | // to convert the {rhs} to a Number and compare the output to |
| 2655 | // the Number on the {lhs}. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2656 | assembler->Goto(&do_rhsstringtonumber); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2657 | } |
| 2658 | |
| 2659 | assembler->Bind(&if_rhsisnotstring); |
| 2660 | { |
| 2661 | // Check if the {rhs} is a JSReceiver. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2662 | Label if_rhsisreceiver(assembler), |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2663 | if_rhsisnotreceiver(assembler); |
| 2664 | STATIC_ASSERT(LAST_TYPE == LAST_JS_RECEIVER_TYPE); |
| 2665 | assembler->Branch( |
| 2666 | assembler->Int32LessThanOrEqual( |
| 2667 | assembler->Int32Constant(FIRST_JS_RECEIVER_TYPE), |
| 2668 | rhs_instance_type), |
| 2669 | &if_rhsisreceiver, &if_rhsisnotreceiver); |
| 2670 | |
| 2671 | assembler->Bind(&if_rhsisreceiver); |
| 2672 | { |
| 2673 | // The {lhs} is a Primitive and the {rhs} is a JSReceiver. |
| 2674 | // Swapping {lhs} and {rhs} is not observable and doesn't |
| 2675 | // matter for the result, so we can just swap them and use |
| 2676 | // the JSReceiver handling below (for {lhs} being a |
| 2677 | // JSReceiver). |
| 2678 | var_lhs.Bind(rhs); |
| 2679 | var_rhs.Bind(lhs); |
| 2680 | assembler->Goto(&loop); |
| 2681 | } |
| 2682 | |
| 2683 | assembler->Bind(&if_rhsisnotreceiver); |
| 2684 | { |
| 2685 | // Check if {rhs} is a Boolean. |
| 2686 | Label if_rhsisboolean(assembler), |
| 2687 | if_rhsisnotboolean(assembler); |
| 2688 | Node* boolean_map = assembler->BooleanMapConstant(); |
| 2689 | assembler->Branch(assembler->WordEqual(rhs_map, boolean_map), |
| 2690 | &if_rhsisboolean, &if_rhsisnotboolean); |
| 2691 | |
| 2692 | assembler->Bind(&if_rhsisboolean); |
| 2693 | { |
| 2694 | // The {rhs} is a Boolean, convert it to a Smi first. |
| 2695 | var_rhs.Bind(assembler->LoadObjectField( |
| 2696 | rhs, Oddball::kToNumberOffset)); |
| 2697 | assembler->Goto(&loop); |
| 2698 | } |
| 2699 | |
| 2700 | assembler->Bind(&if_rhsisnotboolean); |
| 2701 | assembler->Goto(&if_notequal); |
| 2702 | } |
| 2703 | } |
| 2704 | } |
| 2705 | } |
| 2706 | |
| 2707 | assembler->Bind(&if_lhsisoddball); |
| 2708 | { |
| 2709 | // The {lhs} is an Oddball and {rhs} is some other HeapObject. |
| 2710 | Label if_lhsisboolean(assembler), if_lhsisnotboolean(assembler); |
| 2711 | Node* boolean_map = assembler->BooleanMapConstant(); |
| 2712 | assembler->Branch(assembler->WordEqual(lhs_map, boolean_map), |
| 2713 | &if_lhsisboolean, &if_lhsisnotboolean); |
| 2714 | |
| 2715 | assembler->Bind(&if_lhsisboolean); |
| 2716 | { |
| 2717 | // The {lhs} is a Boolean, check if {rhs} is also a Boolean. |
| 2718 | Label if_rhsisboolean(assembler), if_rhsisnotboolean(assembler); |
| 2719 | assembler->Branch(assembler->WordEqual(rhs_map, boolean_map), |
| 2720 | &if_rhsisboolean, &if_rhsisnotboolean); |
| 2721 | |
| 2722 | assembler->Bind(&if_rhsisboolean); |
| 2723 | { |
| 2724 | // Both {lhs} and {rhs} are distinct Boolean values. |
| 2725 | assembler->Goto(&if_notequal); |
| 2726 | } |
| 2727 | |
| 2728 | assembler->Bind(&if_rhsisnotboolean); |
| 2729 | { |
| 2730 | // Convert the {lhs} to a Number first. |
| 2731 | var_lhs.Bind( |
| 2732 | assembler->LoadObjectField(lhs, Oddball::kToNumberOffset)); |
| 2733 | assembler->Goto(&loop); |
| 2734 | } |
| 2735 | } |
| 2736 | |
| 2737 | assembler->Bind(&if_lhsisnotboolean); |
| 2738 | { |
| 2739 | // The {lhs} is either Null or Undefined; check if the {rhs} is |
| 2740 | // undetectable (i.e. either also Null or Undefined or some |
| 2741 | // undetectable JSReceiver). |
| 2742 | Node* rhs_bitfield = assembler->LoadMapBitField(rhs_map); |
| 2743 | assembler->BranchIfWord32Equal( |
| 2744 | assembler->Word32And( |
| 2745 | rhs_bitfield, |
| 2746 | assembler->Int32Constant(1 << Map::kIsUndetectable)), |
| 2747 | assembler->Int32Constant(0), &if_notequal, &if_equal); |
| 2748 | } |
| 2749 | } |
| 2750 | |
| 2751 | assembler->Bind(&if_lhsissymbol); |
| 2752 | { |
| 2753 | // Check if the {rhs} is a JSReceiver. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2754 | Label if_rhsisreceiver(assembler), if_rhsisnotreceiver(assembler); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2755 | STATIC_ASSERT(LAST_TYPE == LAST_JS_RECEIVER_TYPE); |
| 2756 | assembler->Branch( |
| 2757 | assembler->Int32LessThanOrEqual( |
| 2758 | assembler->Int32Constant(FIRST_JS_RECEIVER_TYPE), |
| 2759 | rhs_instance_type), |
| 2760 | &if_rhsisreceiver, &if_rhsisnotreceiver); |
| 2761 | |
| 2762 | assembler->Bind(&if_rhsisreceiver); |
| 2763 | { |
| 2764 | // The {lhs} is a Primitive and the {rhs} is a JSReceiver. |
| 2765 | // Swapping {lhs} and {rhs} is not observable and doesn't |
| 2766 | // matter for the result, so we can just swap them and use |
| 2767 | // the JSReceiver handling below (for {lhs} being a JSReceiver). |
| 2768 | var_lhs.Bind(rhs); |
| 2769 | var_rhs.Bind(lhs); |
| 2770 | assembler->Goto(&loop); |
| 2771 | } |
| 2772 | |
| 2773 | assembler->Bind(&if_rhsisnotreceiver); |
| 2774 | { |
| 2775 | // The {rhs} is not a JSReceiver and also not the same Symbol |
| 2776 | // as the {lhs}, so this is equality check is considered false. |
| 2777 | assembler->Goto(&if_notequal); |
| 2778 | } |
| 2779 | } |
| 2780 | |
| 2781 | assembler->Bind(&if_lhsissimd128value); |
| 2782 | { |
| 2783 | // Check if the {rhs} is also a Simd128Value. |
| 2784 | Label if_rhsissimd128value(assembler), |
| 2785 | if_rhsisnotsimd128value(assembler); |
| 2786 | assembler->Branch( |
| 2787 | assembler->Word32Equal(lhs_instance_type, rhs_instance_type), |
| 2788 | &if_rhsissimd128value, &if_rhsisnotsimd128value); |
| 2789 | |
| 2790 | assembler->Bind(&if_rhsissimd128value); |
| 2791 | { |
| 2792 | // Both {lhs} and {rhs} is a Simd128Value. |
| 2793 | GenerateEqual_Simd128Value_HeapObject(assembler, lhs, lhs_map, |
| 2794 | rhs, rhs_map, &if_equal, |
| 2795 | &if_notequal); |
| 2796 | } |
| 2797 | |
| 2798 | assembler->Bind(&if_rhsisnotsimd128value); |
| 2799 | { |
| 2800 | // Check if the {rhs} is a JSReceiver. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2801 | Label if_rhsisreceiver(assembler), if_rhsisnotreceiver(assembler); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2802 | STATIC_ASSERT(LAST_TYPE == LAST_JS_RECEIVER_TYPE); |
| 2803 | assembler->Branch( |
| 2804 | assembler->Int32LessThanOrEqual( |
| 2805 | assembler->Int32Constant(FIRST_JS_RECEIVER_TYPE), |
| 2806 | rhs_instance_type), |
| 2807 | &if_rhsisreceiver, &if_rhsisnotreceiver); |
| 2808 | |
| 2809 | assembler->Bind(&if_rhsisreceiver); |
| 2810 | { |
| 2811 | // The {lhs} is a Primitive and the {rhs} is a JSReceiver. |
| 2812 | // Swapping {lhs} and {rhs} is not observable and doesn't |
| 2813 | // matter for the result, so we can just swap them and use |
| 2814 | // the JSReceiver handling below (for {lhs} being a JSReceiver). |
| 2815 | var_lhs.Bind(rhs); |
| 2816 | var_rhs.Bind(lhs); |
| 2817 | assembler->Goto(&loop); |
| 2818 | } |
| 2819 | |
| 2820 | assembler->Bind(&if_rhsisnotreceiver); |
| 2821 | { |
| 2822 | // The {rhs} is some other Primitive. |
| 2823 | assembler->Goto(&if_notequal); |
| 2824 | } |
| 2825 | } |
| 2826 | } |
| 2827 | |
| 2828 | assembler->Bind(&if_lhsisreceiver); |
| 2829 | { |
| 2830 | // Check if the {rhs} is also a JSReceiver. |
| 2831 | Label if_rhsisreceiver(assembler), if_rhsisnotreceiver(assembler); |
| 2832 | STATIC_ASSERT(LAST_TYPE == LAST_JS_RECEIVER_TYPE); |
| 2833 | assembler->Branch( |
| 2834 | assembler->Int32LessThanOrEqual( |
| 2835 | assembler->Int32Constant(FIRST_JS_RECEIVER_TYPE), |
| 2836 | rhs_instance_type), |
| 2837 | &if_rhsisreceiver, &if_rhsisnotreceiver); |
| 2838 | |
| 2839 | assembler->Bind(&if_rhsisreceiver); |
| 2840 | { |
| 2841 | // Both {lhs} and {rhs} are different JSReceiver references, so |
| 2842 | // this cannot be considered equal. |
| 2843 | assembler->Goto(&if_notequal); |
| 2844 | } |
| 2845 | |
| 2846 | assembler->Bind(&if_rhsisnotreceiver); |
| 2847 | { |
| 2848 | // Check if {rhs} is Null or Undefined (an undetectable check |
| 2849 | // is sufficient here, since we already know that {rhs} is not |
| 2850 | // a JSReceiver). |
| 2851 | Label if_rhsisundetectable(assembler), |
| 2852 | if_rhsisnotundetectable(assembler, Label::kDeferred); |
| 2853 | Node* rhs_bitfield = assembler->LoadMapBitField(rhs_map); |
| 2854 | assembler->BranchIfWord32Equal( |
| 2855 | assembler->Word32And( |
| 2856 | rhs_bitfield, |
| 2857 | assembler->Int32Constant(1 << Map::kIsUndetectable)), |
| 2858 | assembler->Int32Constant(0), &if_rhsisnotundetectable, |
| 2859 | &if_rhsisundetectable); |
| 2860 | |
| 2861 | assembler->Bind(&if_rhsisundetectable); |
| 2862 | { |
| 2863 | // Check if {lhs} is an undetectable JSReceiver. |
| 2864 | Node* lhs_bitfield = assembler->LoadMapBitField(lhs_map); |
| 2865 | assembler->BranchIfWord32Equal( |
| 2866 | assembler->Word32And( |
| 2867 | lhs_bitfield, |
| 2868 | assembler->Int32Constant(1 << Map::kIsUndetectable)), |
| 2869 | assembler->Int32Constant(0), &if_notequal, &if_equal); |
| 2870 | } |
| 2871 | |
| 2872 | assembler->Bind(&if_rhsisnotundetectable); |
| 2873 | { |
| 2874 | // The {rhs} is some Primitive different from Null and |
| 2875 | // Undefined, need to convert {lhs} to Primitive first. |
| 2876 | // TODO(bmeurer): Hook up ToPrimitiveStub here once it exists. |
| 2877 | var_lhs.Bind(assembler->CallRuntime(Runtime::kToPrimitive, |
| 2878 | context, lhs)); |
| 2879 | assembler->Goto(&loop); |
| 2880 | } |
| 2881 | } |
| 2882 | } |
| 2883 | } |
| 2884 | } |
| 2885 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2886 | |
| 2887 | assembler->Bind(&do_rhsstringtonumber); |
| 2888 | { |
| 2889 | Callable callable = CodeFactory::StringToNumber(assembler->isolate()); |
| 2890 | var_rhs.Bind(assembler->CallStub(callable, context, rhs)); |
| 2891 | assembler->Goto(&loop); |
| 2892 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2893 | } |
| 2894 | |
| 2895 | assembler->Bind(&do_fcmp); |
| 2896 | { |
| 2897 | // Load the {lhs} and {rhs} floating point values. |
| 2898 | Node* lhs = var_fcmp_lhs.value(); |
| 2899 | Node* rhs = var_fcmp_rhs.value(); |
| 2900 | |
| 2901 | // Perform a fast floating point comparison. |
| 2902 | assembler->BranchIfFloat64Equal(lhs, rhs, &if_equal, &if_notequal); |
| 2903 | } |
| 2904 | |
| 2905 | assembler->Bind(&if_equal); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2906 | { |
| 2907 | result.Bind(assembler->BooleanConstant(mode == kDontNegateResult)); |
| 2908 | assembler->Goto(&end); |
| 2909 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2910 | |
| 2911 | assembler->Bind(&if_notequal); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2912 | { |
| 2913 | result.Bind(assembler->BooleanConstant(mode == kNegateResult)); |
| 2914 | assembler->Goto(&end); |
| 2915 | } |
| 2916 | |
| 2917 | assembler->Bind(&end); |
| 2918 | return result.value(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2919 | } |
| 2920 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2921 | compiler::Node* GenerateStrictEqual(CodeStubAssembler* assembler, |
| 2922 | ResultMode mode, compiler::Node* lhs, |
| 2923 | compiler::Node* rhs, |
| 2924 | compiler::Node* context) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2925 | // Here's pseudo-code for the algorithm below in case of kDontNegateResult |
| 2926 | // mode; for kNegateResult mode we properly negate the result. |
| 2927 | // |
| 2928 | // if (lhs == rhs) { |
| 2929 | // if (lhs->IsHeapNumber()) return HeapNumber::cast(lhs)->value() != NaN; |
| 2930 | // return true; |
| 2931 | // } |
| 2932 | // if (!lhs->IsSmi()) { |
| 2933 | // if (lhs->IsHeapNumber()) { |
| 2934 | // if (rhs->IsSmi()) { |
| 2935 | // return Smi::cast(rhs)->value() == HeapNumber::cast(lhs)->value(); |
| 2936 | // } else if (rhs->IsHeapNumber()) { |
| 2937 | // return HeapNumber::cast(rhs)->value() == |
| 2938 | // HeapNumber::cast(lhs)->value(); |
| 2939 | // } else { |
| 2940 | // return false; |
| 2941 | // } |
| 2942 | // } else { |
| 2943 | // if (rhs->IsSmi()) { |
| 2944 | // return false; |
| 2945 | // } else { |
| 2946 | // if (lhs->IsString()) { |
| 2947 | // if (rhs->IsString()) { |
| 2948 | // return %StringEqual(lhs, rhs); |
| 2949 | // } else { |
| 2950 | // return false; |
| 2951 | // } |
| 2952 | // } else if (lhs->IsSimd128()) { |
| 2953 | // if (rhs->IsSimd128()) { |
| 2954 | // return %StrictEqual(lhs, rhs); |
| 2955 | // } |
| 2956 | // } else { |
| 2957 | // return false; |
| 2958 | // } |
| 2959 | // } |
| 2960 | // } |
| 2961 | // } else { |
| 2962 | // if (rhs->IsSmi()) { |
| 2963 | // return false; |
| 2964 | // } else { |
| 2965 | // if (rhs->IsHeapNumber()) { |
| 2966 | // return Smi::cast(lhs)->value() == HeapNumber::cast(rhs)->value(); |
| 2967 | // } else { |
| 2968 | // return false; |
| 2969 | // } |
| 2970 | // } |
| 2971 | // } |
| 2972 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2973 | typedef CodeStubAssembler::Label Label; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2974 | typedef CodeStubAssembler::Variable Variable; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2975 | typedef compiler::Node Node; |
| 2976 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2977 | Label if_equal(assembler), if_notequal(assembler), end(assembler); |
| 2978 | Variable result(assembler, MachineRepresentation::kTagged); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2979 | |
| 2980 | // Check if {lhs} and {rhs} refer to the same object. |
| 2981 | Label if_same(assembler), if_notsame(assembler); |
| 2982 | assembler->Branch(assembler->WordEqual(lhs, rhs), &if_same, &if_notsame); |
| 2983 | |
| 2984 | assembler->Bind(&if_same); |
| 2985 | { |
| 2986 | // The {lhs} and {rhs} reference the exact same value, yet we need special |
| 2987 | // treatment for HeapNumber, as NaN is not equal to NaN. |
| 2988 | GenerateEqual_Same(assembler, lhs, &if_equal, &if_notequal); |
| 2989 | } |
| 2990 | |
| 2991 | assembler->Bind(&if_notsame); |
| 2992 | { |
| 2993 | // The {lhs} and {rhs} reference different objects, yet for Smi, HeapNumber, |
| 2994 | // String and Simd128Value they can still be considered equal. |
| 2995 | Node* number_map = assembler->HeapNumberMapConstant(); |
| 2996 | |
| 2997 | // Check if {lhs} is a Smi or a HeapObject. |
| 2998 | Label if_lhsissmi(assembler), if_lhsisnotsmi(assembler); |
| 2999 | assembler->Branch(assembler->WordIsSmi(lhs), &if_lhsissmi, &if_lhsisnotsmi); |
| 3000 | |
| 3001 | assembler->Bind(&if_lhsisnotsmi); |
| 3002 | { |
| 3003 | // Load the map of {lhs}. |
| 3004 | Node* lhs_map = assembler->LoadMap(lhs); |
| 3005 | |
| 3006 | // Check if {lhs} is a HeapNumber. |
| 3007 | Label if_lhsisnumber(assembler), if_lhsisnotnumber(assembler); |
| 3008 | assembler->Branch(assembler->WordEqual(lhs_map, number_map), |
| 3009 | &if_lhsisnumber, &if_lhsisnotnumber); |
| 3010 | |
| 3011 | assembler->Bind(&if_lhsisnumber); |
| 3012 | { |
| 3013 | // Check if {rhs} is a Smi or a HeapObject. |
| 3014 | Label if_rhsissmi(assembler), if_rhsisnotsmi(assembler); |
| 3015 | assembler->Branch(assembler->WordIsSmi(rhs), &if_rhsissmi, |
| 3016 | &if_rhsisnotsmi); |
| 3017 | |
| 3018 | assembler->Bind(&if_rhsissmi); |
| 3019 | { |
| 3020 | // Convert {lhs} and {rhs} to floating point values. |
| 3021 | Node* lhs_value = assembler->LoadHeapNumberValue(lhs); |
| 3022 | Node* rhs_value = assembler->SmiToFloat64(rhs); |
| 3023 | |
| 3024 | // Perform a floating point comparison of {lhs} and {rhs}. |
| 3025 | assembler->BranchIfFloat64Equal(lhs_value, rhs_value, &if_equal, |
| 3026 | &if_notequal); |
| 3027 | } |
| 3028 | |
| 3029 | assembler->Bind(&if_rhsisnotsmi); |
| 3030 | { |
| 3031 | // Load the map of {rhs}. |
| 3032 | Node* rhs_map = assembler->LoadMap(rhs); |
| 3033 | |
| 3034 | // Check if {rhs} is also a HeapNumber. |
| 3035 | Label if_rhsisnumber(assembler), if_rhsisnotnumber(assembler); |
| 3036 | assembler->Branch(assembler->WordEqual(rhs_map, number_map), |
| 3037 | &if_rhsisnumber, &if_rhsisnotnumber); |
| 3038 | |
| 3039 | assembler->Bind(&if_rhsisnumber); |
| 3040 | { |
| 3041 | // Convert {lhs} and {rhs} to floating point values. |
| 3042 | Node* lhs_value = assembler->LoadHeapNumberValue(lhs); |
| 3043 | Node* rhs_value = assembler->LoadHeapNumberValue(rhs); |
| 3044 | |
| 3045 | // Perform a floating point comparison of {lhs} and {rhs}. |
| 3046 | assembler->BranchIfFloat64Equal(lhs_value, rhs_value, &if_equal, |
| 3047 | &if_notequal); |
| 3048 | } |
| 3049 | |
| 3050 | assembler->Bind(&if_rhsisnotnumber); |
| 3051 | assembler->Goto(&if_notequal); |
| 3052 | } |
| 3053 | } |
| 3054 | |
| 3055 | assembler->Bind(&if_lhsisnotnumber); |
| 3056 | { |
| 3057 | // Check if {rhs} is a Smi or a HeapObject. |
| 3058 | Label if_rhsissmi(assembler), if_rhsisnotsmi(assembler); |
| 3059 | assembler->Branch(assembler->WordIsSmi(rhs), &if_rhsissmi, |
| 3060 | &if_rhsisnotsmi); |
| 3061 | |
| 3062 | assembler->Bind(&if_rhsissmi); |
| 3063 | assembler->Goto(&if_notequal); |
| 3064 | |
| 3065 | assembler->Bind(&if_rhsisnotsmi); |
| 3066 | { |
| 3067 | // Load the instance type of {lhs}. |
| 3068 | Node* lhs_instance_type = assembler->LoadMapInstanceType(lhs_map); |
| 3069 | |
| 3070 | // Check if {lhs} is a String. |
| 3071 | Label if_lhsisstring(assembler), if_lhsisnotstring(assembler); |
| 3072 | assembler->Branch(assembler->Int32LessThan( |
| 3073 | lhs_instance_type, |
| 3074 | assembler->Int32Constant(FIRST_NONSTRING_TYPE)), |
| 3075 | &if_lhsisstring, &if_lhsisnotstring); |
| 3076 | |
| 3077 | assembler->Bind(&if_lhsisstring); |
| 3078 | { |
| 3079 | // Load the instance type of {rhs}. |
| 3080 | Node* rhs_instance_type = assembler->LoadInstanceType(rhs); |
| 3081 | |
| 3082 | // Check if {rhs} is also a String. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3083 | Label if_rhsisstring(assembler, Label::kDeferred), |
| 3084 | if_rhsisnotstring(assembler); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3085 | assembler->Branch(assembler->Int32LessThan( |
| 3086 | rhs_instance_type, assembler->Int32Constant( |
| 3087 | FIRST_NONSTRING_TYPE)), |
| 3088 | &if_rhsisstring, &if_rhsisnotstring); |
| 3089 | |
| 3090 | assembler->Bind(&if_rhsisstring); |
| 3091 | { |
| 3092 | Callable callable = |
| 3093 | (mode == kDontNegateResult) |
| 3094 | ? CodeFactory::StringEqual(assembler->isolate()) |
| 3095 | : CodeFactory::StringNotEqual(assembler->isolate()); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3096 | result.Bind(assembler->CallStub(callable, context, lhs, rhs)); |
| 3097 | assembler->Goto(&end); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3098 | } |
| 3099 | |
| 3100 | assembler->Bind(&if_rhsisnotstring); |
| 3101 | assembler->Goto(&if_notequal); |
| 3102 | } |
| 3103 | |
| 3104 | assembler->Bind(&if_lhsisnotstring); |
| 3105 | { |
| 3106 | // Check if {lhs} is a Simd128Value. |
| 3107 | Label if_lhsissimd128value(assembler), |
| 3108 | if_lhsisnotsimd128value(assembler); |
| 3109 | assembler->Branch(assembler->Word32Equal( |
| 3110 | lhs_instance_type, |
| 3111 | assembler->Int32Constant(SIMD128_VALUE_TYPE)), |
| 3112 | &if_lhsissimd128value, &if_lhsisnotsimd128value); |
| 3113 | |
| 3114 | assembler->Bind(&if_lhsissimd128value); |
| 3115 | { |
| 3116 | // Load the map of {rhs}. |
| 3117 | Node* rhs_map = assembler->LoadMap(rhs); |
| 3118 | |
| 3119 | // Check if {rhs} is also a Simd128Value that is equal to {lhs}. |
| 3120 | GenerateEqual_Simd128Value_HeapObject(assembler, lhs, lhs_map, |
| 3121 | rhs, rhs_map, &if_equal, |
| 3122 | &if_notequal); |
| 3123 | } |
| 3124 | |
| 3125 | assembler->Bind(&if_lhsisnotsimd128value); |
| 3126 | assembler->Goto(&if_notequal); |
| 3127 | } |
| 3128 | } |
| 3129 | } |
| 3130 | } |
| 3131 | |
| 3132 | assembler->Bind(&if_lhsissmi); |
| 3133 | { |
| 3134 | // We already know that {lhs} and {rhs} are not reference equal, and {lhs} |
| 3135 | // is a Smi; so {lhs} and {rhs} can only be strictly equal if {rhs} is a |
| 3136 | // HeapNumber with an equal floating point value. |
| 3137 | |
| 3138 | // Check if {rhs} is a Smi or a HeapObject. |
| 3139 | Label if_rhsissmi(assembler), if_rhsisnotsmi(assembler); |
| 3140 | assembler->Branch(assembler->WordIsSmi(rhs), &if_rhsissmi, |
| 3141 | &if_rhsisnotsmi); |
| 3142 | |
| 3143 | assembler->Bind(&if_rhsissmi); |
| 3144 | assembler->Goto(&if_notequal); |
| 3145 | |
| 3146 | assembler->Bind(&if_rhsisnotsmi); |
| 3147 | { |
| 3148 | // Load the map of the {rhs}. |
| 3149 | Node* rhs_map = assembler->LoadMap(rhs); |
| 3150 | |
| 3151 | // The {rhs} could be a HeapNumber with the same value as {lhs}. |
| 3152 | Label if_rhsisnumber(assembler), if_rhsisnotnumber(assembler); |
| 3153 | assembler->Branch(assembler->WordEqual(rhs_map, number_map), |
| 3154 | &if_rhsisnumber, &if_rhsisnotnumber); |
| 3155 | |
| 3156 | assembler->Bind(&if_rhsisnumber); |
| 3157 | { |
| 3158 | // Convert {lhs} and {rhs} to floating point values. |
| 3159 | Node* lhs_value = assembler->SmiToFloat64(lhs); |
| 3160 | Node* rhs_value = assembler->LoadHeapNumberValue(rhs); |
| 3161 | |
| 3162 | // Perform a floating point comparison of {lhs} and {rhs}. |
| 3163 | assembler->BranchIfFloat64Equal(lhs_value, rhs_value, &if_equal, |
| 3164 | &if_notequal); |
| 3165 | } |
| 3166 | |
| 3167 | assembler->Bind(&if_rhsisnotnumber); |
| 3168 | assembler->Goto(&if_notequal); |
| 3169 | } |
| 3170 | } |
| 3171 | } |
| 3172 | |
| 3173 | assembler->Bind(&if_equal); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3174 | { |
| 3175 | result.Bind(assembler->BooleanConstant(mode == kDontNegateResult)); |
| 3176 | assembler->Goto(&end); |
| 3177 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3178 | |
| 3179 | assembler->Bind(&if_notequal); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3180 | { |
| 3181 | result.Bind(assembler->BooleanConstant(mode == kNegateResult)); |
| 3182 | assembler->Goto(&end); |
| 3183 | } |
| 3184 | |
| 3185 | assembler->Bind(&end); |
| 3186 | return result.value(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3187 | } |
| 3188 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3189 | void GenerateStringRelationalComparison(CodeStubAssembler* assembler, |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3190 | RelationalComparisonMode mode) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3191 | typedef CodeStubAssembler::Label Label; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3192 | typedef compiler::Node Node; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3193 | typedef CodeStubAssembler::Variable Variable; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3194 | |
| 3195 | Node* lhs = assembler->Parameter(0); |
| 3196 | Node* rhs = assembler->Parameter(1); |
| 3197 | Node* context = assembler->Parameter(2); |
| 3198 | |
| 3199 | Label if_less(assembler), if_equal(assembler), if_greater(assembler); |
| 3200 | |
| 3201 | // Fast check to see if {lhs} and {rhs} refer to the same String object. |
| 3202 | Label if_same(assembler), if_notsame(assembler); |
| 3203 | assembler->Branch(assembler->WordEqual(lhs, rhs), &if_same, &if_notsame); |
| 3204 | |
| 3205 | assembler->Bind(&if_same); |
| 3206 | assembler->Goto(&if_equal); |
| 3207 | |
| 3208 | assembler->Bind(&if_notsame); |
| 3209 | { |
| 3210 | // Load instance types of {lhs} and {rhs}. |
| 3211 | Node* lhs_instance_type = assembler->LoadInstanceType(lhs); |
| 3212 | Node* rhs_instance_type = assembler->LoadInstanceType(rhs); |
| 3213 | |
| 3214 | // Combine the instance types into a single 16-bit value, so we can check |
| 3215 | // both of them at once. |
| 3216 | Node* both_instance_types = assembler->Word32Or( |
| 3217 | lhs_instance_type, |
| 3218 | assembler->Word32Shl(rhs_instance_type, assembler->Int32Constant(8))); |
| 3219 | |
| 3220 | // Check that both {lhs} and {rhs} are flat one-byte strings. |
| 3221 | int const kBothSeqOneByteStringMask = |
| 3222 | kStringEncodingMask | kStringRepresentationMask | |
| 3223 | ((kStringEncodingMask | kStringRepresentationMask) << 8); |
| 3224 | int const kBothSeqOneByteStringTag = |
| 3225 | kOneByteStringTag | kSeqStringTag | |
| 3226 | ((kOneByteStringTag | kSeqStringTag) << 8); |
| 3227 | Label if_bothonebyteseqstrings(assembler), |
| 3228 | if_notbothonebyteseqstrings(assembler); |
| 3229 | assembler->Branch(assembler->Word32Equal( |
| 3230 | assembler->Word32And(both_instance_types, |
| 3231 | assembler->Int32Constant( |
| 3232 | kBothSeqOneByteStringMask)), |
| 3233 | assembler->Int32Constant(kBothSeqOneByteStringTag)), |
| 3234 | &if_bothonebyteseqstrings, &if_notbothonebyteseqstrings); |
| 3235 | |
| 3236 | assembler->Bind(&if_bothonebyteseqstrings); |
| 3237 | { |
| 3238 | // Load the length of {lhs} and {rhs}. |
| 3239 | Node* lhs_length = assembler->LoadObjectField(lhs, String::kLengthOffset); |
| 3240 | Node* rhs_length = assembler->LoadObjectField(rhs, String::kLengthOffset); |
| 3241 | |
| 3242 | // Determine the minimum length. |
| 3243 | Node* length = assembler->SmiMin(lhs_length, rhs_length); |
| 3244 | |
| 3245 | // Compute the effective offset of the first character. |
| 3246 | Node* begin = assembler->IntPtrConstant(SeqOneByteString::kHeaderSize - |
| 3247 | kHeapObjectTag); |
| 3248 | |
| 3249 | // Compute the first offset after the string from the length. |
| 3250 | Node* end = assembler->IntPtrAdd(begin, assembler->SmiUntag(length)); |
| 3251 | |
| 3252 | // Loop over the {lhs} and {rhs} strings to see if they are equal. |
| 3253 | Variable var_offset(assembler, MachineType::PointerRepresentation()); |
| 3254 | Label loop(assembler, &var_offset); |
| 3255 | var_offset.Bind(begin); |
| 3256 | assembler->Goto(&loop); |
| 3257 | assembler->Bind(&loop); |
| 3258 | { |
| 3259 | // Check if {offset} equals {end}. |
| 3260 | Node* offset = var_offset.value(); |
| 3261 | Label if_done(assembler), if_notdone(assembler); |
| 3262 | assembler->Branch(assembler->WordEqual(offset, end), &if_done, |
| 3263 | &if_notdone); |
| 3264 | |
| 3265 | assembler->Bind(&if_notdone); |
| 3266 | { |
| 3267 | // Load the next characters from {lhs} and {rhs}. |
| 3268 | Node* lhs_value = assembler->Load(MachineType::Uint8(), lhs, offset); |
| 3269 | Node* rhs_value = assembler->Load(MachineType::Uint8(), rhs, offset); |
| 3270 | |
| 3271 | // Check if the characters match. |
| 3272 | Label if_valueissame(assembler), if_valueisnotsame(assembler); |
| 3273 | assembler->Branch(assembler->Word32Equal(lhs_value, rhs_value), |
| 3274 | &if_valueissame, &if_valueisnotsame); |
| 3275 | |
| 3276 | assembler->Bind(&if_valueissame); |
| 3277 | { |
| 3278 | // Advance to next character. |
| 3279 | var_offset.Bind( |
| 3280 | assembler->IntPtrAdd(offset, assembler->IntPtrConstant(1))); |
| 3281 | } |
| 3282 | assembler->Goto(&loop); |
| 3283 | |
| 3284 | assembler->Bind(&if_valueisnotsame); |
| 3285 | assembler->BranchIf(assembler->Uint32LessThan(lhs_value, rhs_value), |
| 3286 | &if_less, &if_greater); |
| 3287 | } |
| 3288 | |
| 3289 | assembler->Bind(&if_done); |
| 3290 | { |
| 3291 | // All characters up to the min length are equal, decide based on |
| 3292 | // string length. |
| 3293 | Label if_lengthisequal(assembler), if_lengthisnotequal(assembler); |
| 3294 | assembler->Branch(assembler->SmiEqual(lhs_length, rhs_length), |
| 3295 | &if_lengthisequal, &if_lengthisnotequal); |
| 3296 | |
| 3297 | assembler->Bind(&if_lengthisequal); |
| 3298 | assembler->Goto(&if_equal); |
| 3299 | |
| 3300 | assembler->Bind(&if_lengthisnotequal); |
| 3301 | assembler->BranchIfSmiLessThan(lhs_length, rhs_length, &if_less, |
| 3302 | &if_greater); |
| 3303 | } |
| 3304 | } |
| 3305 | } |
| 3306 | |
| 3307 | assembler->Bind(&if_notbothonebyteseqstrings); |
| 3308 | { |
| 3309 | // TODO(bmeurer): Add fast case support for flattened cons strings; |
| 3310 | // also add support for two byte string relational comparisons. |
| 3311 | switch (mode) { |
| 3312 | case kLessThan: |
| 3313 | assembler->TailCallRuntime(Runtime::kStringLessThan, context, lhs, |
| 3314 | rhs); |
| 3315 | break; |
| 3316 | case kLessThanOrEqual: |
| 3317 | assembler->TailCallRuntime(Runtime::kStringLessThanOrEqual, context, |
| 3318 | lhs, rhs); |
| 3319 | break; |
| 3320 | case kGreaterThan: |
| 3321 | assembler->TailCallRuntime(Runtime::kStringGreaterThan, context, lhs, |
| 3322 | rhs); |
| 3323 | break; |
| 3324 | case kGreaterThanOrEqual: |
| 3325 | assembler->TailCallRuntime(Runtime::kStringGreaterThanOrEqual, |
| 3326 | context, lhs, rhs); |
| 3327 | break; |
| 3328 | } |
| 3329 | } |
| 3330 | } |
| 3331 | |
| 3332 | assembler->Bind(&if_less); |
| 3333 | switch (mode) { |
| 3334 | case kLessThan: |
| 3335 | case kLessThanOrEqual: |
| 3336 | assembler->Return(assembler->BooleanConstant(true)); |
| 3337 | break; |
| 3338 | |
| 3339 | case kGreaterThan: |
| 3340 | case kGreaterThanOrEqual: |
| 3341 | assembler->Return(assembler->BooleanConstant(false)); |
| 3342 | break; |
| 3343 | } |
| 3344 | |
| 3345 | assembler->Bind(&if_equal); |
| 3346 | switch (mode) { |
| 3347 | case kLessThan: |
| 3348 | case kGreaterThan: |
| 3349 | assembler->Return(assembler->BooleanConstant(false)); |
| 3350 | break; |
| 3351 | |
| 3352 | case kLessThanOrEqual: |
| 3353 | case kGreaterThanOrEqual: |
| 3354 | assembler->Return(assembler->BooleanConstant(true)); |
| 3355 | break; |
| 3356 | } |
| 3357 | |
| 3358 | assembler->Bind(&if_greater); |
| 3359 | switch (mode) { |
| 3360 | case kLessThan: |
| 3361 | case kLessThanOrEqual: |
| 3362 | assembler->Return(assembler->BooleanConstant(false)); |
| 3363 | break; |
| 3364 | |
| 3365 | case kGreaterThan: |
| 3366 | case kGreaterThanOrEqual: |
| 3367 | assembler->Return(assembler->BooleanConstant(true)); |
| 3368 | break; |
| 3369 | } |
| 3370 | } |
| 3371 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3372 | void GenerateStringEqual(CodeStubAssembler* assembler, ResultMode mode) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3373 | // Here's pseudo-code for the algorithm below in case of kDontNegateResult |
| 3374 | // mode; for kNegateResult mode we properly negate the result. |
| 3375 | // |
| 3376 | // if (lhs == rhs) return true; |
| 3377 | // if (lhs->length() != rhs->length()) return false; |
| 3378 | // if (lhs->IsInternalizedString() && rhs->IsInternalizedString()) { |
| 3379 | // return false; |
| 3380 | // } |
| 3381 | // if (lhs->IsSeqOneByteString() && rhs->IsSeqOneByteString()) { |
| 3382 | // for (i = 0; i != lhs->length(); ++i) { |
| 3383 | // if (lhs[i] != rhs[i]) return false; |
| 3384 | // } |
| 3385 | // return true; |
| 3386 | // } |
| 3387 | // return %StringEqual(lhs, rhs); |
| 3388 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3389 | typedef CodeStubAssembler::Label Label; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3390 | typedef compiler::Node Node; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3391 | typedef CodeStubAssembler::Variable Variable; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3392 | |
| 3393 | Node* lhs = assembler->Parameter(0); |
| 3394 | Node* rhs = assembler->Parameter(1); |
| 3395 | Node* context = assembler->Parameter(2); |
| 3396 | |
| 3397 | Label if_equal(assembler), if_notequal(assembler); |
| 3398 | |
| 3399 | // Fast check to see if {lhs} and {rhs} refer to the same String object. |
| 3400 | Label if_same(assembler), if_notsame(assembler); |
| 3401 | assembler->Branch(assembler->WordEqual(lhs, rhs), &if_same, &if_notsame); |
| 3402 | |
| 3403 | assembler->Bind(&if_same); |
| 3404 | assembler->Goto(&if_equal); |
| 3405 | |
| 3406 | assembler->Bind(&if_notsame); |
| 3407 | { |
| 3408 | // The {lhs} and {rhs} don't refer to the exact same String object. |
| 3409 | |
| 3410 | // Load the length of {lhs} and {rhs}. |
| 3411 | Node* lhs_length = assembler->LoadObjectField(lhs, String::kLengthOffset); |
| 3412 | Node* rhs_length = assembler->LoadObjectField(rhs, String::kLengthOffset); |
| 3413 | |
| 3414 | // Check if the lengths of {lhs} and {rhs} are equal. |
| 3415 | Label if_lengthisequal(assembler), if_lengthisnotequal(assembler); |
| 3416 | assembler->Branch(assembler->WordEqual(lhs_length, rhs_length), |
| 3417 | &if_lengthisequal, &if_lengthisnotequal); |
| 3418 | |
| 3419 | assembler->Bind(&if_lengthisequal); |
| 3420 | { |
| 3421 | // Load instance types of {lhs} and {rhs}. |
| 3422 | Node* lhs_instance_type = assembler->LoadInstanceType(lhs); |
| 3423 | Node* rhs_instance_type = assembler->LoadInstanceType(rhs); |
| 3424 | |
| 3425 | // Combine the instance types into a single 16-bit value, so we can check |
| 3426 | // both of them at once. |
| 3427 | Node* both_instance_types = assembler->Word32Or( |
| 3428 | lhs_instance_type, |
| 3429 | assembler->Word32Shl(rhs_instance_type, assembler->Int32Constant(8))); |
| 3430 | |
| 3431 | // Check if both {lhs} and {rhs} are internalized. |
| 3432 | int const kBothInternalizedMask = |
| 3433 | kIsNotInternalizedMask | (kIsNotInternalizedMask << 8); |
| 3434 | int const kBothInternalizedTag = |
| 3435 | kInternalizedTag | (kInternalizedTag << 8); |
| 3436 | Label if_bothinternalized(assembler), if_notbothinternalized(assembler); |
| 3437 | assembler->Branch(assembler->Word32Equal( |
| 3438 | assembler->Word32And(both_instance_types, |
| 3439 | assembler->Int32Constant( |
| 3440 | kBothInternalizedMask)), |
| 3441 | assembler->Int32Constant(kBothInternalizedTag)), |
| 3442 | &if_bothinternalized, &if_notbothinternalized); |
| 3443 | |
| 3444 | assembler->Bind(&if_bothinternalized); |
| 3445 | { |
| 3446 | // Fast negative check for internalized-to-internalized equality. |
| 3447 | assembler->Goto(&if_notequal); |
| 3448 | } |
| 3449 | |
| 3450 | assembler->Bind(&if_notbothinternalized); |
| 3451 | { |
| 3452 | // Check that both {lhs} and {rhs} are flat one-byte strings. |
| 3453 | int const kBothSeqOneByteStringMask = |
| 3454 | kStringEncodingMask | kStringRepresentationMask | |
| 3455 | ((kStringEncodingMask | kStringRepresentationMask) << 8); |
| 3456 | int const kBothSeqOneByteStringTag = |
| 3457 | kOneByteStringTag | kSeqStringTag | |
| 3458 | ((kOneByteStringTag | kSeqStringTag) << 8); |
| 3459 | Label if_bothonebyteseqstrings(assembler), |
| 3460 | if_notbothonebyteseqstrings(assembler); |
| 3461 | assembler->Branch( |
| 3462 | assembler->Word32Equal( |
| 3463 | assembler->Word32And( |
| 3464 | both_instance_types, |
| 3465 | assembler->Int32Constant(kBothSeqOneByteStringMask)), |
| 3466 | assembler->Int32Constant(kBothSeqOneByteStringTag)), |
| 3467 | &if_bothonebyteseqstrings, &if_notbothonebyteseqstrings); |
| 3468 | |
| 3469 | assembler->Bind(&if_bothonebyteseqstrings); |
| 3470 | { |
| 3471 | // Compute the effective offset of the first character. |
| 3472 | Node* begin = assembler->IntPtrConstant( |
| 3473 | SeqOneByteString::kHeaderSize - kHeapObjectTag); |
| 3474 | |
| 3475 | // Compute the first offset after the string from the length. |
| 3476 | Node* end = |
| 3477 | assembler->IntPtrAdd(begin, assembler->SmiUntag(lhs_length)); |
| 3478 | |
| 3479 | // Loop over the {lhs} and {rhs} strings to see if they are equal. |
| 3480 | Variable var_offset(assembler, MachineType::PointerRepresentation()); |
| 3481 | Label loop(assembler, &var_offset); |
| 3482 | var_offset.Bind(begin); |
| 3483 | assembler->Goto(&loop); |
| 3484 | assembler->Bind(&loop); |
| 3485 | { |
| 3486 | // Check if {offset} equals {end}. |
| 3487 | Node* offset = var_offset.value(); |
| 3488 | Label if_done(assembler), if_notdone(assembler); |
| 3489 | assembler->Branch(assembler->WordEqual(offset, end), &if_done, |
| 3490 | &if_notdone); |
| 3491 | |
| 3492 | assembler->Bind(&if_notdone); |
| 3493 | { |
| 3494 | // Load the next characters from {lhs} and {rhs}. |
| 3495 | Node* lhs_value = |
| 3496 | assembler->Load(MachineType::Uint8(), lhs, offset); |
| 3497 | Node* rhs_value = |
| 3498 | assembler->Load(MachineType::Uint8(), rhs, offset); |
| 3499 | |
| 3500 | // Check if the characters match. |
| 3501 | Label if_valueissame(assembler), if_valueisnotsame(assembler); |
| 3502 | assembler->Branch(assembler->Word32Equal(lhs_value, rhs_value), |
| 3503 | &if_valueissame, &if_valueisnotsame); |
| 3504 | |
| 3505 | assembler->Bind(&if_valueissame); |
| 3506 | { |
| 3507 | // Advance to next character. |
| 3508 | var_offset.Bind( |
| 3509 | assembler->IntPtrAdd(offset, assembler->IntPtrConstant(1))); |
| 3510 | } |
| 3511 | assembler->Goto(&loop); |
| 3512 | |
| 3513 | assembler->Bind(&if_valueisnotsame); |
| 3514 | assembler->Goto(&if_notequal); |
| 3515 | } |
| 3516 | |
| 3517 | assembler->Bind(&if_done); |
| 3518 | assembler->Goto(&if_equal); |
| 3519 | } |
| 3520 | } |
| 3521 | |
| 3522 | assembler->Bind(&if_notbothonebyteseqstrings); |
| 3523 | { |
| 3524 | // TODO(bmeurer): Add fast case support for flattened cons strings; |
| 3525 | // also add support for two byte string equality checks. |
| 3526 | Runtime::FunctionId function_id = (mode == kDontNegateResult) |
| 3527 | ? Runtime::kStringEqual |
| 3528 | : Runtime::kStringNotEqual; |
| 3529 | assembler->TailCallRuntime(function_id, context, lhs, rhs); |
| 3530 | } |
| 3531 | } |
| 3532 | } |
| 3533 | |
| 3534 | assembler->Bind(&if_lengthisnotequal); |
| 3535 | { |
| 3536 | // Mismatch in length of {lhs} and {rhs}, cannot be equal. |
| 3537 | assembler->Goto(&if_notequal); |
| 3538 | } |
| 3539 | } |
| 3540 | |
| 3541 | assembler->Bind(&if_equal); |
| 3542 | assembler->Return(assembler->BooleanConstant(mode == kDontNegateResult)); |
| 3543 | |
| 3544 | assembler->Bind(&if_notequal); |
| 3545 | assembler->Return(assembler->BooleanConstant(mode == kNegateResult)); |
| 3546 | } |
| 3547 | |
| 3548 | } // namespace |
| 3549 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3550 | void LoadApiGetterStub::GenerateAssembly(CodeStubAssembler* assembler) const { |
| 3551 | typedef compiler::Node Node; |
| 3552 | Node* context = assembler->Parameter(3); |
| 3553 | Node* receiver = assembler->Parameter(0); |
| 3554 | // For now we only support receiver_is_holder. |
| 3555 | DCHECK(receiver_is_holder()); |
| 3556 | Node* holder = receiver; |
| 3557 | Node* map = assembler->LoadMap(receiver); |
| 3558 | Node* descriptors = assembler->LoadMapDescriptors(map); |
| 3559 | Node* offset = |
| 3560 | assembler->Int32Constant(DescriptorArray::ToValueIndex(index())); |
| 3561 | Node* callback = assembler->LoadFixedArrayElement(descriptors, offset); |
| 3562 | assembler->TailCallStub(CodeFactory::ApiGetter(isolate()), context, receiver, |
| 3563 | holder, callback); |
| 3564 | } |
| 3565 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3566 | // static |
| 3567 | compiler::Node* LessThanStub::Generate(CodeStubAssembler* assembler, |
| 3568 | compiler::Node* lhs, compiler::Node* rhs, |
| 3569 | compiler::Node* context) { |
| 3570 | return GenerateAbstractRelationalComparison(assembler, kLessThan, lhs, rhs, |
| 3571 | context); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3572 | } |
| 3573 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3574 | // static |
| 3575 | compiler::Node* LessThanOrEqualStub::Generate(CodeStubAssembler* assembler, |
| 3576 | compiler::Node* lhs, |
| 3577 | compiler::Node* rhs, |
| 3578 | compiler::Node* context) { |
| 3579 | return GenerateAbstractRelationalComparison(assembler, kLessThanOrEqual, lhs, |
| 3580 | rhs, context); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3581 | } |
| 3582 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3583 | // static |
| 3584 | compiler::Node* GreaterThanStub::Generate(CodeStubAssembler* assembler, |
| 3585 | compiler::Node* lhs, |
| 3586 | compiler::Node* rhs, |
| 3587 | compiler::Node* context) { |
| 3588 | return GenerateAbstractRelationalComparison(assembler, kGreaterThan, lhs, rhs, |
| 3589 | context); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3590 | } |
| 3591 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3592 | // static |
| 3593 | compiler::Node* GreaterThanOrEqualStub::Generate(CodeStubAssembler* assembler, |
| 3594 | compiler::Node* lhs, |
| 3595 | compiler::Node* rhs, |
| 3596 | compiler::Node* context) { |
| 3597 | return GenerateAbstractRelationalComparison(assembler, kGreaterThanOrEqual, |
| 3598 | lhs, rhs, context); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3599 | } |
| 3600 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3601 | // static |
| 3602 | compiler::Node* EqualStub::Generate(CodeStubAssembler* assembler, |
| 3603 | compiler::Node* lhs, compiler::Node* rhs, |
| 3604 | compiler::Node* context) { |
| 3605 | return GenerateEqual(assembler, kDontNegateResult, lhs, rhs, context); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3606 | } |
| 3607 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3608 | // static |
| 3609 | compiler::Node* NotEqualStub::Generate(CodeStubAssembler* assembler, |
| 3610 | compiler::Node* lhs, compiler::Node* rhs, |
| 3611 | compiler::Node* context) { |
| 3612 | return GenerateEqual(assembler, kNegateResult, lhs, rhs, context); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3613 | } |
| 3614 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3615 | // static |
| 3616 | compiler::Node* StrictEqualStub::Generate(CodeStubAssembler* assembler, |
| 3617 | compiler::Node* lhs, |
| 3618 | compiler::Node* rhs, |
| 3619 | compiler::Node* context) { |
| 3620 | return GenerateStrictEqual(assembler, kDontNegateResult, lhs, rhs, context); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3621 | } |
| 3622 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3623 | // static |
| 3624 | compiler::Node* StrictNotEqualStub::Generate(CodeStubAssembler* assembler, |
| 3625 | compiler::Node* lhs, |
| 3626 | compiler::Node* rhs, |
| 3627 | compiler::Node* context) { |
| 3628 | return GenerateStrictEqual(assembler, kNegateResult, lhs, rhs, context); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3629 | } |
| 3630 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3631 | void StringEqualStub::GenerateAssembly(CodeStubAssembler* assembler) const { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3632 | GenerateStringEqual(assembler, kDontNegateResult); |
| 3633 | } |
| 3634 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3635 | void StringNotEqualStub::GenerateAssembly(CodeStubAssembler* assembler) const { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3636 | GenerateStringEqual(assembler, kNegateResult); |
| 3637 | } |
| 3638 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3639 | void StringLessThanStub::GenerateAssembly(CodeStubAssembler* assembler) const { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3640 | GenerateStringRelationalComparison(assembler, kLessThan); |
| 3641 | } |
| 3642 | |
| 3643 | void StringLessThanOrEqualStub::GenerateAssembly( |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3644 | CodeStubAssembler* assembler) const { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3645 | GenerateStringRelationalComparison(assembler, kLessThanOrEqual); |
| 3646 | } |
| 3647 | |
| 3648 | void StringGreaterThanStub::GenerateAssembly( |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3649 | CodeStubAssembler* assembler) const { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3650 | GenerateStringRelationalComparison(assembler, kGreaterThan); |
| 3651 | } |
| 3652 | |
| 3653 | void StringGreaterThanOrEqualStub::GenerateAssembly( |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3654 | CodeStubAssembler* assembler) const { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3655 | GenerateStringRelationalComparison(assembler, kGreaterThanOrEqual); |
| 3656 | } |
| 3657 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3658 | void ToLengthStub::GenerateAssembly(CodeStubAssembler* assembler) const { |
| 3659 | typedef CodeStubAssembler::Label Label; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3660 | typedef compiler::Node Node; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3661 | typedef CodeStubAssembler::Variable Variable; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3662 | |
| 3663 | Node* context = assembler->Parameter(1); |
| 3664 | |
| 3665 | // We might need to loop once for ToNumber conversion. |
| 3666 | Variable var_len(assembler, MachineRepresentation::kTagged); |
| 3667 | Label loop(assembler, &var_len); |
| 3668 | var_len.Bind(assembler->Parameter(0)); |
| 3669 | assembler->Goto(&loop); |
| 3670 | assembler->Bind(&loop); |
| 3671 | { |
| 3672 | // Shared entry points. |
| 3673 | Label return_len(assembler), |
| 3674 | return_two53minus1(assembler, Label::kDeferred), |
| 3675 | return_zero(assembler, Label::kDeferred); |
| 3676 | |
| 3677 | // Load the current {len} value. |
| 3678 | Node* len = var_len.value(); |
| 3679 | |
| 3680 | // Check if {len} is a positive Smi. |
| 3681 | assembler->GotoIf(assembler->WordIsPositiveSmi(len), &return_len); |
| 3682 | |
| 3683 | // Check if {len} is a (negative) Smi. |
| 3684 | assembler->GotoIf(assembler->WordIsSmi(len), &return_zero); |
| 3685 | |
| 3686 | // Check if {len} is a HeapNumber. |
| 3687 | Label if_lenisheapnumber(assembler), |
| 3688 | if_lenisnotheapnumber(assembler, Label::kDeferred); |
| 3689 | assembler->Branch(assembler->WordEqual(assembler->LoadMap(len), |
| 3690 | assembler->HeapNumberMapConstant()), |
| 3691 | &if_lenisheapnumber, &if_lenisnotheapnumber); |
| 3692 | |
| 3693 | assembler->Bind(&if_lenisheapnumber); |
| 3694 | { |
| 3695 | // Load the floating-point value of {len}. |
| 3696 | Node* len_value = assembler->LoadHeapNumberValue(len); |
| 3697 | |
| 3698 | // Check if {len} is not greater than zero. |
| 3699 | assembler->GotoUnless(assembler->Float64GreaterThan( |
| 3700 | len_value, assembler->Float64Constant(0.0)), |
| 3701 | &return_zero); |
| 3702 | |
| 3703 | // Check if {len} is greater than or equal to 2^53-1. |
| 3704 | assembler->GotoIf( |
| 3705 | assembler->Float64GreaterThanOrEqual( |
| 3706 | len_value, assembler->Float64Constant(kMaxSafeInteger)), |
| 3707 | &return_two53minus1); |
| 3708 | |
| 3709 | // Round the {len} towards -Infinity. |
| 3710 | Node* value = assembler->Float64Floor(len_value); |
| 3711 | Node* result = assembler->ChangeFloat64ToTagged(value); |
| 3712 | assembler->Return(result); |
| 3713 | } |
| 3714 | |
| 3715 | assembler->Bind(&if_lenisnotheapnumber); |
| 3716 | { |
| 3717 | // Need to convert {len} to a Number first. |
| 3718 | Callable callable = CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 3719 | var_len.Bind(assembler->CallStub(callable, context, len)); |
| 3720 | assembler->Goto(&loop); |
| 3721 | } |
| 3722 | |
| 3723 | assembler->Bind(&return_len); |
| 3724 | assembler->Return(var_len.value()); |
| 3725 | |
| 3726 | assembler->Bind(&return_two53minus1); |
| 3727 | assembler->Return(assembler->NumberConstant(kMaxSafeInteger)); |
| 3728 | |
| 3729 | assembler->Bind(&return_zero); |
| 3730 | assembler->Return(assembler->SmiConstant(Smi::FromInt(0))); |
| 3731 | } |
| 3732 | } |
| 3733 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3734 | // static |
| 3735 | compiler::Node* ToBooleanStub::Generate(CodeStubAssembler* assembler, |
| 3736 | compiler::Node* value, |
| 3737 | compiler::Node* context) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3738 | typedef compiler::Node Node; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3739 | typedef CodeStubAssembler::Label Label; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3740 | typedef CodeStubAssembler::Variable Variable; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3741 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3742 | Variable result(assembler, MachineRepresentation::kTagged); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3743 | Label if_valueissmi(assembler), if_valueisnotsmi(assembler), |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3744 | return_true(assembler), return_false(assembler), end(assembler); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3745 | |
| 3746 | // Check if {value} is a Smi or a HeapObject. |
| 3747 | assembler->Branch(assembler->WordIsSmi(value), &if_valueissmi, |
| 3748 | &if_valueisnotsmi); |
| 3749 | |
| 3750 | assembler->Bind(&if_valueissmi); |
| 3751 | { |
| 3752 | // The {value} is a Smi, only need to check against zero. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3753 | assembler->Branch(assembler->SmiEqual(value, assembler->SmiConstant(0)), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3754 | &return_false, &return_true); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3755 | } |
| 3756 | |
| 3757 | assembler->Bind(&if_valueisnotsmi); |
| 3758 | { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3759 | Label if_valueisstring(assembler), if_valueisnotstring(assembler), |
| 3760 | if_valueisheapnumber(assembler), if_valueisoddball(assembler), |
| 3761 | if_valueisother(assembler); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3762 | |
| 3763 | // The {value} is a HeapObject, load its map. |
| 3764 | Node* value_map = assembler->LoadMap(value); |
| 3765 | |
| 3766 | // Load the {value}s instance type. |
| 3767 | Node* value_instance_type = assembler->Load( |
| 3768 | MachineType::Uint8(), value_map, |
| 3769 | assembler->IntPtrConstant(Map::kInstanceTypeOffset - kHeapObjectTag)); |
| 3770 | |
| 3771 | // Dispatch based on the instance type; we distinguish all String instance |
| 3772 | // types, the HeapNumber type and the Oddball type. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3773 | assembler->Branch(assembler->Int32LessThan( |
| 3774 | value_instance_type, |
| 3775 | assembler->Int32Constant(FIRST_NONSTRING_TYPE)), |
| 3776 | &if_valueisstring, &if_valueisnotstring); |
| 3777 | assembler->Bind(&if_valueisnotstring); |
| 3778 | size_t const kNumCases = 2; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3779 | Label* case_labels[kNumCases]; |
| 3780 | int32_t case_values[kNumCases]; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3781 | case_labels[0] = &if_valueisheapnumber; |
| 3782 | case_values[0] = HEAP_NUMBER_TYPE; |
| 3783 | case_labels[1] = &if_valueisoddball; |
| 3784 | case_values[1] = ODDBALL_TYPE; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3785 | assembler->Switch(value_instance_type, &if_valueisother, case_values, |
| 3786 | case_labels, arraysize(case_values)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3787 | |
| 3788 | assembler->Bind(&if_valueisstring); |
| 3789 | { |
| 3790 | // Load the string length field of the {value}. |
| 3791 | Node* value_length = |
| 3792 | assembler->LoadObjectField(value, String::kLengthOffset); |
| 3793 | |
| 3794 | // Check if the {value} is the empty string. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3795 | assembler->Branch( |
| 3796 | assembler->SmiEqual(value_length, assembler->SmiConstant(0)), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3797 | &return_false, &return_true); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3798 | } |
| 3799 | |
| 3800 | assembler->Bind(&if_valueisheapnumber); |
| 3801 | { |
| 3802 | Node* value_value = assembler->Load( |
| 3803 | MachineType::Float64(), value, |
| 3804 | assembler->IntPtrConstant(HeapNumber::kValueOffset - kHeapObjectTag)); |
| 3805 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3806 | Label if_valueisnotpositive(assembler); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3807 | assembler->Branch(assembler->Float64LessThan( |
| 3808 | assembler->Float64Constant(0.0), value_value), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3809 | &return_true, &if_valueisnotpositive); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3810 | |
| 3811 | assembler->Bind(&if_valueisnotpositive); |
| 3812 | assembler->Branch(assembler->Float64LessThan( |
| 3813 | value_value, assembler->Float64Constant(0.0)), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3814 | &return_true, &return_false); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3815 | } |
| 3816 | |
| 3817 | assembler->Bind(&if_valueisoddball); |
| 3818 | { |
| 3819 | // The {value} is an Oddball, and every Oddball knows its boolean value. |
| 3820 | Node* value_toboolean = |
| 3821 | assembler->LoadObjectField(value, Oddball::kToBooleanOffset); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3822 | result.Bind(value_toboolean); |
| 3823 | assembler->Goto(&end); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3824 | } |
| 3825 | |
| 3826 | assembler->Bind(&if_valueisother); |
| 3827 | { |
| 3828 | Node* value_map_bitfield = assembler->Load( |
| 3829 | MachineType::Uint8(), value_map, |
| 3830 | assembler->IntPtrConstant(Map::kBitFieldOffset - kHeapObjectTag)); |
| 3831 | Node* value_map_undetectable = assembler->Word32And( |
| 3832 | value_map_bitfield, |
| 3833 | assembler->Int32Constant(1 << Map::kIsUndetectable)); |
| 3834 | |
| 3835 | // Check if the {value} is undetectable. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3836 | assembler->Branch(assembler->Word32Equal(value_map_undetectable, |
| 3837 | assembler->Int32Constant(0)), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3838 | &return_true, &return_false); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3839 | } |
| 3840 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3841 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3842 | assembler->Bind(&return_false); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3843 | { |
| 3844 | result.Bind(assembler->BooleanConstant(false)); |
| 3845 | assembler->Goto(&end); |
| 3846 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3847 | |
| 3848 | assembler->Bind(&return_true); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3849 | { |
| 3850 | result.Bind(assembler->BooleanConstant(true)); |
| 3851 | assembler->Goto(&end); |
| 3852 | } |
| 3853 | |
| 3854 | assembler->Bind(&end); |
| 3855 | return result.value(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3856 | } |
| 3857 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3858 | void ToIntegerStub::GenerateAssembly(CodeStubAssembler* assembler) const { |
| 3859 | typedef CodeStubAssembler::Label Label; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3860 | typedef compiler::Node Node; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3861 | typedef CodeStubAssembler::Variable Variable; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3862 | |
| 3863 | Node* context = assembler->Parameter(1); |
| 3864 | |
| 3865 | // We might need to loop once for ToNumber conversion. |
| 3866 | Variable var_arg(assembler, MachineRepresentation::kTagged); |
| 3867 | Label loop(assembler, &var_arg); |
| 3868 | var_arg.Bind(assembler->Parameter(0)); |
| 3869 | assembler->Goto(&loop); |
| 3870 | assembler->Bind(&loop); |
| 3871 | { |
| 3872 | // Shared entry points. |
| 3873 | Label return_arg(assembler), return_zero(assembler, Label::kDeferred); |
| 3874 | |
| 3875 | // Load the current {arg} value. |
| 3876 | Node* arg = var_arg.value(); |
| 3877 | |
| 3878 | // Check if {arg} is a Smi. |
| 3879 | assembler->GotoIf(assembler->WordIsSmi(arg), &return_arg); |
| 3880 | |
| 3881 | // Check if {arg} is a HeapNumber. |
| 3882 | Label if_argisheapnumber(assembler), |
| 3883 | if_argisnotheapnumber(assembler, Label::kDeferred); |
| 3884 | assembler->Branch(assembler->WordEqual(assembler->LoadMap(arg), |
| 3885 | assembler->HeapNumberMapConstant()), |
| 3886 | &if_argisheapnumber, &if_argisnotheapnumber); |
| 3887 | |
| 3888 | assembler->Bind(&if_argisheapnumber); |
| 3889 | { |
| 3890 | // Load the floating-point value of {arg}. |
| 3891 | Node* arg_value = assembler->LoadHeapNumberValue(arg); |
| 3892 | |
| 3893 | // Check if {arg} is NaN. |
| 3894 | assembler->GotoUnless(assembler->Float64Equal(arg_value, arg_value), |
| 3895 | &return_zero); |
| 3896 | |
| 3897 | // Truncate {arg} towards zero. |
| 3898 | Node* value = assembler->Float64Trunc(arg_value); |
| 3899 | var_arg.Bind(assembler->ChangeFloat64ToTagged(value)); |
| 3900 | assembler->Goto(&return_arg); |
| 3901 | } |
| 3902 | |
| 3903 | assembler->Bind(&if_argisnotheapnumber); |
| 3904 | { |
| 3905 | // Need to convert {arg} to a Number first. |
| 3906 | Callable callable = CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 3907 | var_arg.Bind(assembler->CallStub(callable, context, arg)); |
| 3908 | assembler->Goto(&loop); |
| 3909 | } |
| 3910 | |
| 3911 | assembler->Bind(&return_arg); |
| 3912 | assembler->Return(var_arg.value()); |
| 3913 | |
| 3914 | assembler->Bind(&return_zero); |
| 3915 | assembler->Return(assembler->SmiConstant(Smi::FromInt(0))); |
| 3916 | } |
| 3917 | } |
| 3918 | |
| 3919 | void StoreInterceptorStub::GenerateAssembly( |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3920 | CodeStubAssembler* assembler) const { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3921 | typedef compiler::Node Node; |
| 3922 | Node* receiver = assembler->Parameter(0); |
| 3923 | Node* name = assembler->Parameter(1); |
| 3924 | Node* value = assembler->Parameter(2); |
| 3925 | Node* context = assembler->Parameter(3); |
| 3926 | assembler->TailCallRuntime(Runtime::kStorePropertyWithInterceptor, context, |
| 3927 | receiver, name, value); |
| 3928 | } |
| 3929 | |
| 3930 | void LoadIndexedInterceptorStub::GenerateAssembly( |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3931 | CodeStubAssembler* assembler) const { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3932 | typedef compiler::Node Node; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3933 | typedef CodeStubAssembler::Label Label; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3934 | Node* receiver = assembler->Parameter(0); |
| 3935 | Node* key = assembler->Parameter(1); |
| 3936 | Node* slot = assembler->Parameter(2); |
| 3937 | Node* vector = assembler->Parameter(3); |
| 3938 | Node* context = assembler->Parameter(4); |
| 3939 | |
| 3940 | Label if_keyispositivesmi(assembler), if_keyisinvalid(assembler); |
| 3941 | assembler->Branch(assembler->WordIsPositiveSmi(key), &if_keyispositivesmi, |
| 3942 | &if_keyisinvalid); |
| 3943 | assembler->Bind(&if_keyispositivesmi); |
| 3944 | assembler->TailCallRuntime(Runtime::kLoadElementWithInterceptor, context, |
| 3945 | receiver, key); |
| 3946 | |
| 3947 | assembler->Bind(&if_keyisinvalid); |
| 3948 | assembler->TailCallRuntime(Runtime::kKeyedLoadIC_Miss, context, receiver, key, |
| 3949 | slot, vector); |
| 3950 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3951 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3952 | // static |
| 3953 | bool FastCloneShallowObjectStub::IsSupported(ObjectLiteral* expr) { |
| 3954 | // FastCloneShallowObjectStub doesn't copy elements, and object literals don't |
| 3955 | // support copy-on-write (COW) elements for now. |
| 3956 | // TODO(mvstanton): make object literals support COW elements. |
| 3957 | return expr->fast_elements() && expr->has_shallow_properties() && |
| 3958 | expr->properties_count() <= kMaximumClonedProperties; |
| 3959 | } |
| 3960 | |
| 3961 | // static |
| 3962 | int FastCloneShallowObjectStub::PropertiesCount(int literal_length) { |
| 3963 | // This heuristic of setting empty literals to have |
| 3964 | // kInitialGlobalObjectUnusedPropertiesCount must remain in-sync with the |
| 3965 | // runtime. |
| 3966 | // TODO(verwaest): Unify this with the heuristic in the runtime. |
| 3967 | return literal_length == 0 |
| 3968 | ? JSObject::kInitialGlobalObjectUnusedPropertiesCount |
| 3969 | : literal_length; |
| 3970 | } |
| 3971 | |
| 3972 | // static |
| 3973 | compiler::Node* FastCloneShallowObjectStub::GenerateFastPath( |
| 3974 | CodeStubAssembler* assembler, compiler::CodeAssembler::Label* call_runtime, |
| 3975 | compiler::Node* closure, compiler::Node* literals_index, |
| 3976 | compiler::Node* properties_count) { |
| 3977 | typedef compiler::Node Node; |
| 3978 | typedef compiler::CodeAssembler::Label Label; |
| 3979 | typedef compiler::CodeAssembler::Variable Variable; |
| 3980 | |
| 3981 | Node* undefined = assembler->UndefinedConstant(); |
| 3982 | Node* literals_array = |
| 3983 | assembler->LoadObjectField(closure, JSFunction::kLiteralsOffset); |
| 3984 | Node* allocation_site = assembler->LoadFixedArrayElement( |
| 3985 | literals_array, literals_index, |
| 3986 | LiteralsArray::kFirstLiteralIndex * kPointerSize, |
| 3987 | CodeStubAssembler::SMI_PARAMETERS); |
| 3988 | assembler->GotoIf(assembler->WordEqual(allocation_site, undefined), |
| 3989 | call_runtime); |
| 3990 | |
| 3991 | // Calculate the object and allocation size based on the properties count. |
| 3992 | Node* object_size = assembler->IntPtrAdd( |
| 3993 | assembler->WordShl(properties_count, kPointerSizeLog2), |
| 3994 | assembler->IntPtrConstant(JSObject::kHeaderSize)); |
| 3995 | Node* allocation_size = object_size; |
| 3996 | if (FLAG_allocation_site_pretenuring) { |
| 3997 | allocation_size = assembler->IntPtrAdd( |
| 3998 | object_size, assembler->IntPtrConstant(AllocationMemento::kSize)); |
| 3999 | } |
| 4000 | Node* boilerplate = assembler->LoadObjectField( |
| 4001 | allocation_site, AllocationSite::kTransitionInfoOffset); |
| 4002 | Node* boilerplate_map = assembler->LoadMap(boilerplate); |
| 4003 | Node* instance_size = assembler->LoadMapInstanceSize(boilerplate_map); |
| 4004 | Node* size_in_words = assembler->WordShr(object_size, kPointerSizeLog2); |
| 4005 | assembler->GotoUnless(assembler->Word32Equal(instance_size, size_in_words), |
| 4006 | call_runtime); |
| 4007 | |
| 4008 | Node* copy = assembler->Allocate(allocation_size); |
| 4009 | |
| 4010 | // Copy boilerplate elements. |
| 4011 | Variable offset(assembler, MachineType::PointerRepresentation()); |
| 4012 | offset.Bind(assembler->IntPtrConstant(-kHeapObjectTag)); |
| 4013 | Node* end_offset = assembler->IntPtrAdd(object_size, offset.value()); |
| 4014 | Label loop_body(assembler, &offset), loop_check(assembler, &offset); |
| 4015 | // We should always have an object size greater than zero. |
| 4016 | assembler->Goto(&loop_body); |
| 4017 | assembler->Bind(&loop_body); |
| 4018 | { |
| 4019 | // The Allocate above guarantees that the copy lies in new space. This |
| 4020 | // allows us to skip write barriers. This is necessary since we may also be |
| 4021 | // copying unboxed doubles. |
| 4022 | Node* field = |
| 4023 | assembler->Load(MachineType::IntPtr(), boilerplate, offset.value()); |
| 4024 | assembler->StoreNoWriteBarrier(MachineType::PointerRepresentation(), copy, |
| 4025 | offset.value(), field); |
| 4026 | assembler->Goto(&loop_check); |
| 4027 | } |
| 4028 | assembler->Bind(&loop_check); |
| 4029 | { |
| 4030 | offset.Bind(assembler->IntPtrAdd(offset.value(), |
| 4031 | assembler->IntPtrConstant(kPointerSize))); |
| 4032 | assembler->GotoUnless( |
| 4033 | assembler->IntPtrGreaterThanOrEqual(offset.value(), end_offset), |
| 4034 | &loop_body); |
| 4035 | } |
| 4036 | |
| 4037 | if (FLAG_allocation_site_pretenuring) { |
| 4038 | Node* memento = assembler->InnerAllocate(copy, object_size); |
| 4039 | assembler->StoreObjectFieldNoWriteBarrier( |
| 4040 | memento, HeapObject::kMapOffset, |
| 4041 | assembler->LoadRoot(Heap::kAllocationMementoMapRootIndex)); |
| 4042 | assembler->StoreObjectFieldNoWriteBarrier( |
| 4043 | memento, AllocationMemento::kAllocationSiteOffset, allocation_site); |
| 4044 | Node* memento_create_count = assembler->LoadObjectField( |
| 4045 | allocation_site, AllocationSite::kPretenureCreateCountOffset); |
| 4046 | memento_create_count = assembler->SmiAdd( |
| 4047 | memento_create_count, assembler->SmiConstant(Smi::FromInt(1))); |
| 4048 | assembler->StoreObjectFieldNoWriteBarrier( |
| 4049 | allocation_site, AllocationSite::kPretenureCreateCountOffset, |
| 4050 | memento_create_count); |
| 4051 | } |
| 4052 | |
| 4053 | // TODO(verwaest): Allocate and fill in double boxes. |
| 4054 | return copy; |
| 4055 | } |
| 4056 | |
| 4057 | void FastCloneShallowObjectStub::GenerateAssembly( |
| 4058 | CodeStubAssembler* assembler) const { |
| 4059 | typedef CodeStubAssembler::Label Label; |
| 4060 | typedef compiler::Node Node; |
| 4061 | Label call_runtime(assembler); |
| 4062 | Node* closure = assembler->Parameter(0); |
| 4063 | Node* literals_index = assembler->Parameter(1); |
| 4064 | |
| 4065 | Node* properties_count = |
| 4066 | assembler->IntPtrConstant(PropertiesCount(this->length())); |
| 4067 | Node* copy = GenerateFastPath(assembler, &call_runtime, closure, |
| 4068 | literals_index, properties_count); |
| 4069 | assembler->Return(copy); |
| 4070 | |
| 4071 | assembler->Bind(&call_runtime); |
| 4072 | Node* constant_properties = assembler->Parameter(2); |
| 4073 | Node* flags = assembler->Parameter(3); |
| 4074 | Node* context = assembler->Parameter(4); |
| 4075 | assembler->TailCallRuntime(Runtime::kCreateObjectLiteral, context, closure, |
| 4076 | literals_index, constant_properties, flags); |
| 4077 | } |
| 4078 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4079 | template<class StateType> |
| 4080 | void HydrogenCodeStub::TraceTransition(StateType from, StateType to) { |
| 4081 | // Note: Although a no-op transition is semantically OK, it is hinting at a |
| 4082 | // bug somewhere in our state transition machinery. |
| 4083 | DCHECK(from != to); |
| 4084 | if (!FLAG_trace_ic) return; |
| 4085 | OFStream os(stdout); |
| 4086 | os << "["; |
| 4087 | PrintBaseName(os); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4088 | os << ": " << from << "=>" << to << "]" << std::endl; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4089 | } |
| 4090 | |
| 4091 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4092 | // TODO(svenpanne) Make this a real infix_ostream_iterator. |
| 4093 | class SimpleListPrinter { |
| 4094 | public: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4095 | explicit SimpleListPrinter(std::ostream& os) : os_(os), first_(true) {} |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4096 | |
| 4097 | void Add(const char* s) { |
| 4098 | if (first_) { |
| 4099 | first_ = false; |
| 4100 | } else { |
| 4101 | os_ << ","; |
| 4102 | } |
| 4103 | os_ << s; |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 4104 | } |
| 4105 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4106 | private: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4107 | std::ostream& os_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4108 | bool first_; |
| 4109 | }; |
| 4110 | |
| 4111 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4112 | void CallICStub::PrintState(std::ostream& os) const { // NOLINT |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4113 | os << state(); |
| 4114 | } |
| 4115 | |
| 4116 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4117 | void JSEntryStub::FinishCode(Handle<Code> code) { |
| 4118 | Handle<FixedArray> handler_table = |
| 4119 | code->GetIsolate()->factory()->NewFixedArray(1, TENURED); |
| 4120 | handler_table->set(0, Smi::FromInt(handler_offset_)); |
| 4121 | code->set_handler_table(*handler_table); |
| 4122 | } |
| 4123 | |
| 4124 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4125 | void LoadDictionaryElementStub::InitializeDescriptor( |
| 4126 | CodeStubDescriptor* descriptor) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4127 | descriptor->Initialize( |
| 4128 | FUNCTION_ADDR(Runtime_KeyedLoadIC_MissFromStubFailure)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4129 | } |
| 4130 | |
| 4131 | |
| 4132 | void KeyedLoadGenericStub::InitializeDescriptor( |
| 4133 | CodeStubDescriptor* descriptor) { |
| 4134 | descriptor->Initialize( |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 4135 | Runtime::FunctionForId(Runtime::kKeyedGetProperty)->entry); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4136 | } |
| 4137 | |
| 4138 | |
| 4139 | void HandlerStub::InitializeDescriptor(CodeStubDescriptor* descriptor) { |
| 4140 | if (kind() == Code::STORE_IC) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4141 | descriptor->Initialize(FUNCTION_ADDR(Runtime_StoreIC_MissFromStubFailure)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4142 | } else if (kind() == Code::KEYED_LOAD_IC) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4143 | descriptor->Initialize( |
| 4144 | FUNCTION_ADDR(Runtime_KeyedLoadIC_MissFromStubFailure)); |
| 4145 | } else if (kind() == Code::KEYED_STORE_IC) { |
| 4146 | descriptor->Initialize( |
| 4147 | FUNCTION_ADDR(Runtime_KeyedStoreIC_MissFromStubFailure)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4148 | } |
| 4149 | } |
| 4150 | |
| 4151 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4152 | CallInterfaceDescriptor HandlerStub::GetCallInterfaceDescriptor() const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4153 | if (kind() == Code::LOAD_IC || kind() == Code::KEYED_LOAD_IC) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4154 | return LoadWithVectorDescriptor(isolate()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4155 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4156 | DCHECK(kind() == Code::STORE_IC || kind() == Code::KEYED_STORE_IC); |
| 4157 | return VectorStoreICDescriptor(isolate()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4158 | } |
| 4159 | } |
| 4160 | |
| 4161 | |
| 4162 | void StoreFastElementStub::InitializeDescriptor( |
| 4163 | CodeStubDescriptor* descriptor) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4164 | descriptor->Initialize( |
| 4165 | FUNCTION_ADDR(Runtime_KeyedStoreIC_MissFromStubFailure)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4166 | } |
| 4167 | |
| 4168 | |
| 4169 | void ElementsTransitionAndStoreStub::InitializeDescriptor( |
| 4170 | CodeStubDescriptor* descriptor) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4171 | descriptor->Initialize( |
| 4172 | FUNCTION_ADDR(Runtime_ElementsTransitionAndStoreIC_Miss)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4173 | } |
| 4174 | |
| 4175 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4176 | void ToObjectStub::InitializeDescriptor(CodeStubDescriptor* descriptor) { |
| 4177 | descriptor->Initialize(Runtime::FunctionForId(Runtime::kToObject)->entry); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4178 | } |
| 4179 | |
| 4180 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4181 | CallInterfaceDescriptor StoreTransitionStub::GetCallInterfaceDescriptor() |
| 4182 | const { |
| 4183 | return VectorStoreTransitionDescriptor(isolate()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4184 | } |
| 4185 | |
| 4186 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4187 | CallInterfaceDescriptor |
| 4188 | ElementsTransitionAndStoreStub::GetCallInterfaceDescriptor() const { |
| 4189 | return VectorStoreTransitionDescriptor(isolate()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4190 | } |
| 4191 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4192 | void FastNewClosureStub::InitializeDescriptor(CodeStubDescriptor* descriptor) {} |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4193 | |
| 4194 | void FastNewContextStub::InitializeDescriptor(CodeStubDescriptor* d) {} |
| 4195 | |
| 4196 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4197 | void TypeofStub::InitializeDescriptor(CodeStubDescriptor* descriptor) {} |
| 4198 | |
| 4199 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4200 | void NumberToStringStub::InitializeDescriptor(CodeStubDescriptor* descriptor) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4201 | descriptor->Initialize( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4202 | Runtime::FunctionForId(Runtime::kNumberToString)->entry); |
| 4203 | } |
| 4204 | |
| 4205 | |
| 4206 | void FastCloneRegExpStub::InitializeDescriptor(CodeStubDescriptor* descriptor) { |
| 4207 | FastCloneRegExpDescriptor call_descriptor(isolate()); |
| 4208 | descriptor->Initialize( |
| 4209 | Runtime::FunctionForId(Runtime::kCreateRegExpLiteral)->entry); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4210 | } |
| 4211 | |
| 4212 | |
| 4213 | void FastCloneShallowArrayStub::InitializeDescriptor( |
| 4214 | CodeStubDescriptor* descriptor) { |
| 4215 | FastCloneShallowArrayDescriptor call_descriptor(isolate()); |
| 4216 | descriptor->Initialize( |
| 4217 | Runtime::FunctionForId(Runtime::kCreateArrayLiteralStubBailout)->entry); |
| 4218 | } |
| 4219 | |
| 4220 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4221 | void CreateAllocationSiteStub::InitializeDescriptor(CodeStubDescriptor* d) {} |
| 4222 | |
| 4223 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4224 | void CreateWeakCellStub::InitializeDescriptor(CodeStubDescriptor* d) {} |
| 4225 | |
| 4226 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4227 | void RegExpConstructResultStub::InitializeDescriptor( |
| 4228 | CodeStubDescriptor* descriptor) { |
| 4229 | descriptor->Initialize( |
| 4230 | Runtime::FunctionForId(Runtime::kRegExpConstructResult)->entry); |
| 4231 | } |
| 4232 | |
| 4233 | |
| 4234 | void TransitionElementsKindStub::InitializeDescriptor( |
| 4235 | CodeStubDescriptor* descriptor) { |
| 4236 | descriptor->Initialize( |
| 4237 | Runtime::FunctionForId(Runtime::kTransitionElementsKind)->entry); |
| 4238 | } |
| 4239 | |
| 4240 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4241 | void AllocateHeapNumberStub::InitializeDescriptor( |
| 4242 | CodeStubDescriptor* descriptor) { |
| 4243 | descriptor->Initialize( |
| 4244 | Runtime::FunctionForId(Runtime::kAllocateHeapNumber)->entry); |
| 4245 | } |
| 4246 | |
| 4247 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4248 | #define SIMD128_INIT_DESC(TYPE, Type, type, lane_count, lane_type) \ |
| 4249 | void Allocate##Type##Stub::InitializeDescriptor( \ |
| 4250 | CodeStubDescriptor* descriptor) { \ |
| 4251 | descriptor->Initialize( \ |
| 4252 | Runtime::FunctionForId(Runtime::kCreate##Type)->entry); \ |
| 4253 | } |
| 4254 | SIMD128_TYPES(SIMD128_INIT_DESC) |
| 4255 | #undef SIMD128_INIT_DESC |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4256 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4257 | void ToBooleanICStub::InitializeDescriptor(CodeStubDescriptor* descriptor) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4258 | descriptor->Initialize(FUNCTION_ADDR(Runtime_ToBooleanIC_Miss)); |
| 4259 | descriptor->SetMissHandler(ExternalReference( |
| 4260 | Runtime::FunctionForId(Runtime::kToBooleanIC_Miss), isolate())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4261 | } |
| 4262 | |
| 4263 | |
| 4264 | void BinaryOpICStub::InitializeDescriptor(CodeStubDescriptor* descriptor) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4265 | descriptor->Initialize(FUNCTION_ADDR(Runtime_BinaryOpIC_Miss)); |
| 4266 | descriptor->SetMissHandler(ExternalReference( |
| 4267 | Runtime::FunctionForId(Runtime::kBinaryOpIC_Miss), isolate())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4268 | } |
| 4269 | |
| 4270 | |
| 4271 | void BinaryOpWithAllocationSiteStub::InitializeDescriptor( |
| 4272 | CodeStubDescriptor* descriptor) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4273 | descriptor->Initialize( |
| 4274 | FUNCTION_ADDR(Runtime_BinaryOpIC_MissWithAllocationSite)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4275 | } |
| 4276 | |
| 4277 | |
| 4278 | void StringAddStub::InitializeDescriptor(CodeStubDescriptor* descriptor) { |
| 4279 | descriptor->Initialize(Runtime::FunctionForId(Runtime::kStringAdd)->entry); |
| 4280 | } |
| 4281 | |
| 4282 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4283 | void GrowArrayElementsStub::InitializeDescriptor( |
| 4284 | CodeStubDescriptor* descriptor) { |
| 4285 | descriptor->Initialize( |
| 4286 | Runtime::FunctionForId(Runtime::kGrowArrayElements)->entry); |
| 4287 | } |
| 4288 | |
| 4289 | |
| 4290 | void TypeofStub::GenerateAheadOfTime(Isolate* isolate) { |
| 4291 | TypeofStub stub(isolate); |
| 4292 | stub.GetCode(); |
| 4293 | } |
| 4294 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4295 | // static |
| 4296 | compiler::Node* HasPropertyStub::Generate(CodeStubAssembler* assembler, |
| 4297 | compiler::Node* key, |
| 4298 | compiler::Node* object, |
| 4299 | compiler::Node* context) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4300 | typedef compiler::Node Node; |
| 4301 | typedef CodeStubAssembler::Label Label; |
| 4302 | typedef CodeStubAssembler::Variable Variable; |
| 4303 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4304 | Label call_runtime(assembler, Label::kDeferred), return_true(assembler), |
| 4305 | return_false(assembler), end(assembler); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4306 | |
| 4307 | // Ensure object is JSReceiver, otherwise call runtime to throw error. |
| 4308 | Label if_objectisnotsmi(assembler); |
| 4309 | assembler->Branch(assembler->WordIsSmi(object), &call_runtime, |
| 4310 | &if_objectisnotsmi); |
| 4311 | assembler->Bind(&if_objectisnotsmi); |
| 4312 | |
| 4313 | Node* map = assembler->LoadMap(object); |
| 4314 | Node* instance_type = assembler->LoadMapInstanceType(map); |
| 4315 | { |
| 4316 | Label if_objectisreceiver(assembler); |
| 4317 | STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); |
| 4318 | assembler->Branch( |
| 4319 | assembler->Int32GreaterThanOrEqual( |
| 4320 | instance_type, assembler->Int32Constant(FIRST_JS_RECEIVER_TYPE)), |
| 4321 | &if_objectisreceiver, &call_runtime); |
| 4322 | assembler->Bind(&if_objectisreceiver); |
| 4323 | } |
| 4324 | |
| 4325 | Variable var_index(assembler, MachineRepresentation::kWord32); |
| 4326 | |
| 4327 | Label keyisindex(assembler), if_iskeyunique(assembler); |
| 4328 | assembler->TryToName(key, &keyisindex, &var_index, &if_iskeyunique, |
| 4329 | &call_runtime); |
| 4330 | |
| 4331 | assembler->Bind(&if_iskeyunique); |
| 4332 | { |
| 4333 | Variable var_object(assembler, MachineRepresentation::kTagged); |
| 4334 | Variable var_map(assembler, MachineRepresentation::kTagged); |
| 4335 | Variable var_instance_type(assembler, MachineRepresentation::kWord8); |
| 4336 | |
| 4337 | Variable* merged_variables[] = {&var_object, &var_map, &var_instance_type}; |
| 4338 | Label loop(assembler, arraysize(merged_variables), merged_variables); |
| 4339 | var_object.Bind(object); |
| 4340 | var_map.Bind(map); |
| 4341 | var_instance_type.Bind(instance_type); |
| 4342 | assembler->Goto(&loop); |
| 4343 | assembler->Bind(&loop); |
| 4344 | { |
| 4345 | Label next_proto(assembler); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4346 | assembler->TryHasOwnProperty(var_object.value(), var_map.value(), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4347 | var_instance_type.value(), key, &return_true, |
| 4348 | &next_proto, &call_runtime); |
| 4349 | assembler->Bind(&next_proto); |
| 4350 | |
| 4351 | Node* proto = assembler->LoadMapPrototype(var_map.value()); |
| 4352 | |
| 4353 | Label if_not_null(assembler); |
| 4354 | assembler->Branch(assembler->WordEqual(proto, assembler->NullConstant()), |
| 4355 | &return_false, &if_not_null); |
| 4356 | assembler->Bind(&if_not_null); |
| 4357 | |
| 4358 | Node* map = assembler->LoadMap(proto); |
| 4359 | Node* instance_type = assembler->LoadMapInstanceType(map); |
| 4360 | |
| 4361 | var_object.Bind(proto); |
| 4362 | var_map.Bind(map); |
| 4363 | var_instance_type.Bind(instance_type); |
| 4364 | assembler->Goto(&loop); |
| 4365 | } |
| 4366 | } |
| 4367 | assembler->Bind(&keyisindex); |
| 4368 | { |
| 4369 | Variable var_object(assembler, MachineRepresentation::kTagged); |
| 4370 | Variable var_map(assembler, MachineRepresentation::kTagged); |
| 4371 | Variable var_instance_type(assembler, MachineRepresentation::kWord8); |
| 4372 | |
| 4373 | Variable* merged_variables[] = {&var_object, &var_map, &var_instance_type}; |
| 4374 | Label loop(assembler, arraysize(merged_variables), merged_variables); |
| 4375 | var_object.Bind(object); |
| 4376 | var_map.Bind(map); |
| 4377 | var_instance_type.Bind(instance_type); |
| 4378 | assembler->Goto(&loop); |
| 4379 | assembler->Bind(&loop); |
| 4380 | { |
| 4381 | Label next_proto(assembler); |
| 4382 | assembler->TryLookupElement(var_object.value(), var_map.value(), |
| 4383 | var_instance_type.value(), var_index.value(), |
| 4384 | &return_true, &next_proto, &call_runtime); |
| 4385 | assembler->Bind(&next_proto); |
| 4386 | |
| 4387 | Node* proto = assembler->LoadMapPrototype(var_map.value()); |
| 4388 | |
| 4389 | Label if_not_null(assembler); |
| 4390 | assembler->Branch(assembler->WordEqual(proto, assembler->NullConstant()), |
| 4391 | &return_false, &if_not_null); |
| 4392 | assembler->Bind(&if_not_null); |
| 4393 | |
| 4394 | Node* map = assembler->LoadMap(proto); |
| 4395 | Node* instance_type = assembler->LoadMapInstanceType(map); |
| 4396 | |
| 4397 | var_object.Bind(proto); |
| 4398 | var_map.Bind(map); |
| 4399 | var_instance_type.Bind(instance_type); |
| 4400 | assembler->Goto(&loop); |
| 4401 | } |
| 4402 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4403 | |
| 4404 | Variable result(assembler, MachineRepresentation::kTagged); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4405 | assembler->Bind(&return_true); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4406 | { |
| 4407 | result.Bind(assembler->BooleanConstant(true)); |
| 4408 | assembler->Goto(&end); |
| 4409 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4410 | |
| 4411 | assembler->Bind(&return_false); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4412 | { |
| 4413 | result.Bind(assembler->BooleanConstant(false)); |
| 4414 | assembler->Goto(&end); |
| 4415 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4416 | |
| 4417 | assembler->Bind(&call_runtime); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4418 | { |
| 4419 | result.Bind( |
| 4420 | assembler->CallRuntime(Runtime::kHasProperty, context, key, object)); |
| 4421 | assembler->Goto(&end); |
| 4422 | } |
| 4423 | |
| 4424 | assembler->Bind(&end); |
| 4425 | return result.value(); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4426 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4427 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4428 | void CreateAllocationSiteStub::GenerateAheadOfTime(Isolate* isolate) { |
| 4429 | CreateAllocationSiteStub stub(isolate); |
| 4430 | stub.GetCode(); |
| 4431 | } |
| 4432 | |
| 4433 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4434 | void CreateWeakCellStub::GenerateAheadOfTime(Isolate* isolate) { |
| 4435 | CreateWeakCellStub stub(isolate); |
| 4436 | stub.GetCode(); |
| 4437 | } |
| 4438 | |
| 4439 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4440 | void StoreElementStub::Generate(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 4441 | DCHECK_EQ(DICTIONARY_ELEMENTS, elements_kind()); |
| 4442 | ElementHandlerCompiler::GenerateStoreSlow(masm); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4443 | } |
| 4444 | |
| 4445 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4446 | // static |
| 4447 | void StoreFastElementStub::GenerateAheadOfTime(Isolate* isolate) { |
| 4448 | StoreFastElementStub(isolate, false, FAST_HOLEY_ELEMENTS, STANDARD_STORE) |
| 4449 | .GetCode(); |
| 4450 | StoreFastElementStub(isolate, false, FAST_HOLEY_ELEMENTS, |
| 4451 | STORE_AND_GROW_NO_TRANSITION).GetCode(); |
| 4452 | for (int i = FIRST_FAST_ELEMENTS_KIND; i <= LAST_FAST_ELEMENTS_KIND; i++) { |
| 4453 | ElementsKind kind = static_cast<ElementsKind>(i); |
| 4454 | StoreFastElementStub(isolate, true, kind, STANDARD_STORE).GetCode(); |
| 4455 | StoreFastElementStub(isolate, true, kind, STORE_AND_GROW_NO_TRANSITION) |
| 4456 | .GetCode(); |
| 4457 | } |
| 4458 | } |
| 4459 | |
| 4460 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4461 | void ArrayConstructorStub::PrintName(std::ostream& os) const { // NOLINT |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4462 | os << "ArrayConstructorStub"; |
| 4463 | switch (argument_count()) { |
| 4464 | case ANY: |
| 4465 | os << "_Any"; |
| 4466 | break; |
| 4467 | case NONE: |
| 4468 | os << "_None"; |
| 4469 | break; |
| 4470 | case ONE: |
| 4471 | os << "_One"; |
| 4472 | break; |
| 4473 | case MORE_THAN_ONE: |
| 4474 | os << "_More_Than_One"; |
| 4475 | break; |
| 4476 | } |
| 4477 | return; |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 4478 | } |
| 4479 | |
| 4480 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4481 | bool ToBooleanICStub::UpdateStatus(Handle<Object> object) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4482 | Types new_types = types(); |
| 4483 | Types old_types = new_types; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4484 | bool to_boolean_value = new_types.UpdateStatus(isolate(), object); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4485 | TraceTransition(old_types, new_types); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4486 | set_sub_minor_key(TypesBits::update(sub_minor_key(), new_types.ToIntegral())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4487 | return to_boolean_value; |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 4488 | } |
| 4489 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4490 | void ToBooleanICStub::PrintState(std::ostream& os) const { // NOLINT |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4491 | os << types(); |
| 4492 | } |
| 4493 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4494 | std::ostream& operator<<(std::ostream& os, const ToBooleanICStub::Types& s) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4495 | os << "("; |
| 4496 | SimpleListPrinter p(os); |
| 4497 | if (s.IsEmpty()) p.Add("None"); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4498 | if (s.Contains(ToBooleanICStub::UNDEFINED)) p.Add("Undefined"); |
| 4499 | if (s.Contains(ToBooleanICStub::BOOLEAN)) p.Add("Bool"); |
| 4500 | if (s.Contains(ToBooleanICStub::NULL_TYPE)) p.Add("Null"); |
| 4501 | if (s.Contains(ToBooleanICStub::SMI)) p.Add("Smi"); |
| 4502 | if (s.Contains(ToBooleanICStub::SPEC_OBJECT)) p.Add("SpecObject"); |
| 4503 | if (s.Contains(ToBooleanICStub::STRING)) p.Add("String"); |
| 4504 | if (s.Contains(ToBooleanICStub::SYMBOL)) p.Add("Symbol"); |
| 4505 | if (s.Contains(ToBooleanICStub::HEAP_NUMBER)) p.Add("HeapNumber"); |
| 4506 | if (s.Contains(ToBooleanICStub::SIMD_VALUE)) p.Add("SimdValue"); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4507 | return os << ")"; |
| 4508 | } |
| 4509 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4510 | bool ToBooleanICStub::Types::UpdateStatus(Isolate* isolate, |
| 4511 | Handle<Object> object) { |
| 4512 | if (object->IsUndefined(isolate)) { |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 4513 | Add(UNDEFINED); |
| 4514 | return false; |
| 4515 | } else if (object->IsBoolean()) { |
| 4516 | Add(BOOLEAN); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4517 | return object->IsTrue(isolate); |
| 4518 | } else if (object->IsNull(isolate)) { |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 4519 | Add(NULL_TYPE); |
| 4520 | return false; |
| 4521 | } else if (object->IsSmi()) { |
| 4522 | Add(SMI); |
| 4523 | return Smi::cast(*object)->value() != 0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4524 | } else if (object->IsJSReceiver()) { |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 4525 | Add(SPEC_OBJECT); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4526 | return !object->IsUndetectable(); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 4527 | } else if (object->IsString()) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4528 | DCHECK(!object->IsUndetectable()); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 4529 | Add(STRING); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 4530 | return String::cast(*object)->length() != 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4531 | } else if (object->IsSymbol()) { |
| 4532 | Add(SYMBOL); |
| 4533 | return true; |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 4534 | } else if (object->IsHeapNumber()) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4535 | DCHECK(!object->IsUndetectable()); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 4536 | Add(HEAP_NUMBER); |
| 4537 | double value = HeapNumber::cast(*object)->value(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4538 | return value != 0 && !std::isnan(value); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4539 | } else if (object->IsSimd128Value()) { |
| 4540 | Add(SIMD_VALUE); |
| 4541 | return true; |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 4542 | } else { |
| 4543 | // We should never see an internal object at runtime here! |
| 4544 | UNREACHABLE(); |
| 4545 | return true; |
| 4546 | } |
| 4547 | } |
| 4548 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4549 | bool ToBooleanICStub::Types::NeedsMap() const { |
| 4550 | return Contains(ToBooleanICStub::SPEC_OBJECT) || |
| 4551 | Contains(ToBooleanICStub::STRING) || |
| 4552 | Contains(ToBooleanICStub::SYMBOL) || |
| 4553 | Contains(ToBooleanICStub::HEAP_NUMBER) || |
| 4554 | Contains(ToBooleanICStub::SIMD_VALUE); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 4555 | } |
| 4556 | |
| 4557 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4558 | void StubFailureTrampolineStub::GenerateAheadOfTime(Isolate* isolate) { |
| 4559 | StubFailureTrampolineStub stub1(isolate, NOT_JS_FUNCTION_STUB_MODE); |
| 4560 | StubFailureTrampolineStub stub2(isolate, JS_FUNCTION_STUB_MODE); |
| 4561 | stub1.GetCode(); |
| 4562 | stub2.GetCode(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4563 | } |
| 4564 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4565 | |
| 4566 | void ProfileEntryHookStub::EntryHookTrampoline(intptr_t function, |
| 4567 | intptr_t stack_pointer, |
| 4568 | Isolate* isolate) { |
| 4569 | FunctionEntryHook entry_hook = isolate->function_entry_hook(); |
| 4570 | DCHECK(entry_hook != NULL); |
| 4571 | entry_hook(function, stack_pointer); |
| 4572 | } |
| 4573 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4574 | void ArrayNoArgumentConstructorStub::GenerateAssembly( |
| 4575 | CodeStubAssembler* assembler) const { |
| 4576 | typedef compiler::Node Node; |
| 4577 | Node* native_context = assembler->LoadObjectField( |
| 4578 | assembler->Parameter( |
| 4579 | ArrayNoArgumentConstructorDescriptor::kFunctionIndex), |
| 4580 | JSFunction::kContextOffset); |
| 4581 | bool track_allocation_site = |
| 4582 | AllocationSite::GetMode(elements_kind()) == TRACK_ALLOCATION_SITE && |
| 4583 | override_mode() != DISABLE_ALLOCATION_SITES; |
| 4584 | Node* allocation_site = |
| 4585 | track_allocation_site |
| 4586 | ? assembler->Parameter( |
| 4587 | ArrayNoArgumentConstructorDescriptor::kAllocationSiteIndex) |
| 4588 | : nullptr; |
| 4589 | Node* array_map = |
| 4590 | assembler->LoadJSArrayElementsMap(elements_kind(), native_context); |
| 4591 | Node* array = assembler->AllocateJSArray( |
| 4592 | elements_kind(), array_map, |
| 4593 | assembler->IntPtrConstant(JSArray::kPreallocatedArrayElements), |
| 4594 | assembler->IntPtrConstant(0), allocation_site); |
| 4595 | assembler->Return(array); |
| 4596 | } |
| 4597 | |
| 4598 | void InternalArrayNoArgumentConstructorStub::GenerateAssembly( |
| 4599 | CodeStubAssembler* assembler) const { |
| 4600 | typedef compiler::Node Node; |
| 4601 | Node* array_map = assembler->LoadObjectField( |
| 4602 | assembler->Parameter( |
| 4603 | ArrayNoArgumentConstructorDescriptor::kFunctionIndex), |
| 4604 | JSFunction::kPrototypeOrInitialMapOffset); |
| 4605 | Node* array = assembler->AllocateJSArray( |
| 4606 | elements_kind(), array_map, |
| 4607 | assembler->IntPtrConstant(JSArray::kPreallocatedArrayElements), |
| 4608 | assembler->IntPtrConstant(0), nullptr); |
| 4609 | assembler->Return(array); |
| 4610 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4611 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4612 | namespace { |
| 4613 | |
| 4614 | void SingleArgumentConstructorCommon(CodeStubAssembler* assembler, |
| 4615 | ElementsKind elements_kind, |
| 4616 | compiler::Node* array_map, |
| 4617 | compiler::Node* allocation_site, |
| 4618 | AllocationSiteMode mode) { |
| 4619 | typedef compiler::Node Node; |
| 4620 | typedef CodeStubAssembler::Label Label; |
| 4621 | |
| 4622 | Label ok(assembler); |
| 4623 | Label smi_size(assembler); |
| 4624 | Label small_smi_size(assembler); |
| 4625 | Label call_runtime(assembler, Label::kDeferred); |
| 4626 | |
| 4627 | Node* size = assembler->Parameter( |
| 4628 | ArraySingleArgumentConstructorDescriptor::kArraySizeSmiParameterIndex); |
| 4629 | assembler->Branch(assembler->WordIsSmi(size), &smi_size, &call_runtime); |
| 4630 | |
| 4631 | assembler->Bind(&smi_size); |
| 4632 | int element_size = |
| 4633 | IsFastDoubleElementsKind(elements_kind) ? kDoubleSize : kPointerSize; |
| 4634 | int max_fast_elements = |
| 4635 | (Page::kMaxRegularHeapObjectSize - FixedArray::kHeaderSize - |
| 4636 | JSArray::kSize - AllocationMemento::kSize) / |
| 4637 | element_size; |
| 4638 | assembler->Branch( |
| 4639 | assembler->SmiAboveOrEqual( |
| 4640 | size, assembler->SmiConstant(Smi::FromInt(max_fast_elements))), |
| 4641 | &call_runtime, &small_smi_size); |
| 4642 | |
| 4643 | assembler->Bind(&small_smi_size); |
| 4644 | { |
| 4645 | Node* array = assembler->AllocateJSArray( |
| 4646 | elements_kind, array_map, size, size, |
| 4647 | mode == DONT_TRACK_ALLOCATION_SITE ? nullptr : allocation_site, |
| 4648 | CodeStubAssembler::SMI_PARAMETERS); |
| 4649 | assembler->Return(array); |
| 4650 | } |
| 4651 | |
| 4652 | assembler->Bind(&call_runtime); |
| 4653 | { |
| 4654 | Node* context = assembler->Parameter( |
| 4655 | ArraySingleArgumentConstructorDescriptor::kContextIndex); |
| 4656 | Node* function = assembler->Parameter( |
| 4657 | ArraySingleArgumentConstructorDescriptor::kFunctionIndex); |
| 4658 | Node* array_size = assembler->Parameter( |
| 4659 | ArraySingleArgumentConstructorDescriptor::kArraySizeSmiParameterIndex); |
| 4660 | Node* allocation_site = assembler->Parameter( |
| 4661 | ArraySingleArgumentConstructorDescriptor::kAllocationSiteIndex); |
| 4662 | assembler->TailCallRuntime(Runtime::kNewArray, context, function, |
| 4663 | array_size, function, allocation_site); |
| 4664 | } |
| 4665 | } |
| 4666 | } // namespace |
| 4667 | |
| 4668 | void ArraySingleArgumentConstructorStub::GenerateAssembly( |
| 4669 | CodeStubAssembler* assembler) const { |
| 4670 | typedef compiler::Node Node; |
| 4671 | Node* function = assembler->Parameter( |
| 4672 | ArraySingleArgumentConstructorDescriptor::kFunctionIndex); |
| 4673 | Node* native_context = |
| 4674 | assembler->LoadObjectField(function, JSFunction::kContextOffset); |
| 4675 | Node* array_map = |
| 4676 | assembler->LoadJSArrayElementsMap(elements_kind(), native_context); |
| 4677 | AllocationSiteMode mode = override_mode() == DISABLE_ALLOCATION_SITES |
| 4678 | ? DONT_TRACK_ALLOCATION_SITE |
| 4679 | : AllocationSite::GetMode(elements_kind()); |
| 4680 | Node* allocation_site = assembler->Parameter( |
| 4681 | ArrayNoArgumentConstructorDescriptor::kAllocationSiteIndex); |
| 4682 | SingleArgumentConstructorCommon(assembler, elements_kind(), array_map, |
| 4683 | allocation_site, mode); |
| 4684 | } |
| 4685 | |
| 4686 | void InternalArraySingleArgumentConstructorStub::GenerateAssembly( |
| 4687 | CodeStubAssembler* assembler) const { |
| 4688 | typedef compiler::Node Node; |
| 4689 | Node* function = assembler->Parameter( |
| 4690 | ArraySingleArgumentConstructorDescriptor::kFunctionIndex); |
| 4691 | Node* array_map = assembler->LoadObjectField( |
| 4692 | function, JSFunction::kPrototypeOrInitialMapOffset); |
| 4693 | SingleArgumentConstructorCommon(assembler, elements_kind(), array_map, |
| 4694 | assembler->UndefinedConstant(), |
| 4695 | DONT_TRACK_ALLOCATION_SITE); |
| 4696 | } |
| 4697 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4698 | ArrayConstructorStub::ArrayConstructorStub(Isolate* isolate) |
| 4699 | : PlatformCodeStub(isolate) { |
| 4700 | minor_key_ = ArgumentCountBits::encode(ANY); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4701 | } |
| 4702 | |
| 4703 | |
| 4704 | ArrayConstructorStub::ArrayConstructorStub(Isolate* isolate, |
| 4705 | int argument_count) |
| 4706 | : PlatformCodeStub(isolate) { |
| 4707 | if (argument_count == 0) { |
| 4708 | minor_key_ = ArgumentCountBits::encode(NONE); |
| 4709 | } else if (argument_count == 1) { |
| 4710 | minor_key_ = ArgumentCountBits::encode(ONE); |
| 4711 | } else if (argument_count >= 2) { |
| 4712 | minor_key_ = ArgumentCountBits::encode(MORE_THAN_ONE); |
| 4713 | } else { |
| 4714 | UNREACHABLE(); |
| 4715 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4716 | } |
| 4717 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4718 | InternalArrayConstructorStub::InternalArrayConstructorStub(Isolate* isolate) |
| 4719 | : PlatformCodeStub(isolate) {} |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4720 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4721 | Representation RepresentationFromType(Type* type) { |
| 4722 | if (type->Is(Type::UntaggedIntegral())) { |
| 4723 | return Representation::Integer32(); |
| 4724 | } |
| 4725 | |
| 4726 | if (type->Is(Type::TaggedSigned())) { |
| 4727 | return Representation::Smi(); |
| 4728 | } |
| 4729 | |
| 4730 | if (type->Is(Type::UntaggedPointer())) { |
| 4731 | return Representation::External(); |
| 4732 | } |
| 4733 | |
| 4734 | DCHECK(!type->Is(Type::Untagged())); |
| 4735 | return Representation::Tagged(); |
| 4736 | } |
| 4737 | |
| 4738 | } // namespace internal |
| 4739 | } // namespace v8 |