| // Copyright 2012 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "v8.h" |
| |
| #include "bootstrapper.h" |
| #include "code-stubs.h" |
| #include "cpu-profiler.h" |
| #include "stub-cache.h" |
| #include "factory.h" |
| #include "gdb-jit.h" |
| #include "macro-assembler.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| |
| CodeStubInterfaceDescriptor::CodeStubInterfaceDescriptor() |
| : register_param_count_(-1), |
| stack_parameter_count_(NULL), |
| hint_stack_parameter_count_(-1), |
| function_mode_(NOT_JS_FUNCTION_STUB_MODE), |
| register_params_(NULL), |
| deoptimization_handler_(NULL), |
| miss_handler_(), |
| has_miss_handler_(false) { } |
| |
| |
| bool CodeStub::FindCodeInCache(Code** code_out, Isolate* isolate) { |
| UnseededNumberDictionary* stubs = isolate->heap()->code_stubs(); |
| int index = stubs->FindEntry(GetKey()); |
| if (index != UnseededNumberDictionary::kNotFound) { |
| *code_out = Code::cast(stubs->ValueAt(index)); |
| return true; |
| } |
| return false; |
| } |
| |
| |
| SmartArrayPointer<const char> CodeStub::GetName() { |
| char buffer[100]; |
| NoAllocationStringAllocator allocator(buffer, |
| static_cast<unsigned>(sizeof(buffer))); |
| StringStream stream(&allocator); |
| PrintName(&stream); |
| return stream.ToCString(); |
| } |
| |
| |
| void CodeStub::RecordCodeGeneration(Code* code, Isolate* isolate) { |
| SmartArrayPointer<const char> name = GetName(); |
| PROFILE(isolate, CodeCreateEvent(Logger::STUB_TAG, code, *name)); |
| GDBJIT(AddCode(GDBJITInterface::STUB, *name, code)); |
| Counters* counters = isolate->counters(); |
| counters->total_stubs_code_size()->Increment(code->instruction_size()); |
| } |
| |
| |
| Code::Kind CodeStub::GetCodeKind() const { |
| return Code::STUB; |
| } |
| |
| |
| Handle<Code> CodeStub::GetCodeCopyFromTemplate(Isolate* isolate) { |
| Handle<Code> ic = GetCode(isolate); |
| ic = isolate->factory()->CopyCode(ic); |
| RecordCodeGeneration(*ic, isolate); |
| return ic; |
| } |
| |
| |
| Handle<Code> PlatformCodeStub::GenerateCode(Isolate* isolate) { |
| Factory* factory = isolate->factory(); |
| |
| // Generate the new code. |
| MacroAssembler masm(isolate, NULL, 256); |
| |
| { |
| // Update the static counter each time a new code stub is generated. |
| isolate->counters()->code_stubs()->Increment(); |
| |
| // Nested stubs are not allowed for leaves. |
| AllowStubCallsScope allow_scope(&masm, false); |
| |
| // Generate the code for the stub. |
| masm.set_generating_stub(true); |
| NoCurrentFrameScope scope(&masm); |
| Generate(&masm); |
| } |
| |
| // Create the code object. |
| CodeDesc desc; |
| masm.GetCode(&desc); |
| |
| // Copy the generated code into a heap object. |
| Code::Flags flags = Code::ComputeFlags( |
| GetCodeKind(), |
| GetICState(), |
| GetExtraICState(), |
| GetStubType(), |
| GetStubFlags()); |
| Handle<Code> new_object = factory->NewCode( |
| desc, flags, masm.CodeObject(), NeedsImmovableCode()); |
| return new_object; |
| } |
| |
| |
| void CodeStub::VerifyPlatformFeatures(Isolate* isolate) { |
| ASSERT(CpuFeatures::VerifyCrossCompiling()); |
| } |
| |
| |
| Handle<Code> CodeStub::GetCode(Isolate* isolate) { |
| Factory* factory = isolate->factory(); |
| Heap* heap = isolate->heap(); |
| Code* code; |
| if (UseSpecialCache() |
| ? FindCodeInSpecialCache(&code, isolate) |
| : FindCodeInCache(&code, isolate)) { |
| ASSERT(IsPregenerated(isolate) == code->is_pregenerated()); |
| ASSERT(GetCodeKind() == code->kind()); |
| return Handle<Code>(code); |
| } |
| |
| #ifdef DEBUG |
| VerifyPlatformFeatures(isolate); |
| #endif |
| |
| { |
| HandleScope scope(isolate); |
| |
| Handle<Code> new_object = GenerateCode(isolate); |
| new_object->set_major_key(MajorKey()); |
| FinishCode(new_object); |
| RecordCodeGeneration(*new_object, isolate); |
| |
| #ifdef ENABLE_DISASSEMBLER |
| if (FLAG_print_code_stubs) { |
| new_object->Disassemble(*GetName()); |
| PrintF("\n"); |
| } |
| #endif |
| |
| if (UseSpecialCache()) { |
| AddToSpecialCache(new_object); |
| } else { |
| // Update the dictionary and the root in Heap. |
| Handle<UnseededNumberDictionary> dict = |
| factory->DictionaryAtNumberPut( |
| Handle<UnseededNumberDictionary>(heap->code_stubs()), |
| GetKey(), |
| new_object); |
| heap->public_set_code_stubs(*dict); |
| } |
| code = *new_object; |
| } |
| |
| Activate(code); |
| ASSERT(!NeedsImmovableCode() || |
| heap->lo_space()->Contains(code) || |
| heap->code_space()->FirstPage()->Contains(code->address())); |
| return Handle<Code>(code, isolate); |
| } |
| |
| |
| const char* CodeStub::MajorName(CodeStub::Major major_key, |
| bool allow_unknown_keys) { |
| switch (major_key) { |
| #define DEF_CASE(name) case name: return #name "Stub"; |
| CODE_STUB_LIST(DEF_CASE) |
| #undef DEF_CASE |
| default: |
| if (!allow_unknown_keys) { |
| UNREACHABLE(); |
| } |
| return NULL; |
| } |
| } |
| |
| |
| void CodeStub::PrintBaseName(StringStream* stream) { |
| stream->Add("%s", MajorName(MajorKey(), false)); |
| } |
| |
| |
| void CodeStub::PrintName(StringStream* stream) { |
| PrintBaseName(stream); |
| PrintState(stream); |
| } |
| |
| |
| void BinaryOpStub::PrintBaseName(StringStream* stream) { |
| const char* op_name = Token::Name(op_); |
| const char* ovr = ""; |
| if (mode_ == OVERWRITE_LEFT) ovr = "_ReuseLeft"; |
| if (mode_ == OVERWRITE_RIGHT) ovr = "_ReuseRight"; |
| stream->Add("BinaryOpStub_%s%s", op_name, ovr); |
| } |
| |
| |
| void BinaryOpStub::PrintState(StringStream* stream) { |
| stream->Add("("); |
| stream->Add(StateToName(left_state_)); |
| stream->Add("*"); |
| if (fixed_right_arg_.has_value) { |
| stream->Add("%d", fixed_right_arg_.value); |
| } else { |
| stream->Add(StateToName(right_state_)); |
| } |
| stream->Add("->"); |
| stream->Add(StateToName(result_state_)); |
| stream->Add(")"); |
| } |
| |
| |
| Maybe<Handle<Object> > BinaryOpStub::Result(Handle<Object> left, |
| Handle<Object> right, |
| Isolate* isolate) { |
| Handle<JSBuiltinsObject> builtins(isolate->js_builtins_object()); |
| Builtins::JavaScript func = BinaryOpIC::TokenToJSBuiltin(op_); |
| Object* builtin = builtins->javascript_builtin(func); |
| Handle<JSFunction> builtin_function = |
| Handle<JSFunction>(JSFunction::cast(builtin), isolate); |
| bool caught_exception; |
| Handle<Object> result = Execution::Call(isolate, builtin_function, left, |
| 1, &right, &caught_exception); |
| return Maybe<Handle<Object> >(!caught_exception, result); |
| } |
| |
| |
| void BinaryOpStub::Initialize() { |
| fixed_right_arg_.has_value = false; |
| left_state_ = right_state_ = result_state_ = NONE; |
| } |
| |
| |
| void BinaryOpStub::Generate(Token::Value op, |
| State left, |
| State right, |
| State result, |
| OverwriteMode mode, |
| Isolate* isolate) { |
| BinaryOpStub stub(INITIALIZED); |
| stub.op_ = op; |
| stub.left_state_ = left; |
| stub.right_state_ = right; |
| stub.result_state_ = result; |
| stub.mode_ = mode; |
| stub.GetCode(isolate); |
| } |
| |
| |
| void BinaryOpStub::Generate(Token::Value op, |
| State left, |
| int right, |
| State result, |
| OverwriteMode mode, |
| Isolate* isolate) { |
| BinaryOpStub stub(INITIALIZED); |
| stub.op_ = op; |
| stub.left_state_ = left; |
| stub.fixed_right_arg_.has_value = true; |
| stub.fixed_right_arg_.value = right; |
| stub.right_state_ = SMI; |
| stub.result_state_ = result; |
| stub.mode_ = mode; |
| stub.GetCode(isolate); |
| } |
| |
| |
| void BinaryOpStub::GenerateAheadOfTime(Isolate* isolate) { |
| Token::Value binop[] = {Token::SUB, Token::MOD, Token::DIV, Token::MUL, |
| Token::ADD, Token::SAR, Token::BIT_OR, Token::BIT_AND, |
| Token::BIT_XOR, Token::SHL, Token::SHR}; |
| for (unsigned i = 0; i < ARRAY_SIZE(binop); i++) { |
| BinaryOpStub stub(UNINITIALIZED); |
| stub.op_ = binop[i]; |
| stub.GetCode(isolate); |
| } |
| |
| // TODO(olivf) We should investigate why adding stubs to the snapshot is so |
| // expensive at runtime. When solved we should be able to add most binops to |
| // the snapshot instead of hand-picking them. |
| // Generated list of commonly used stubs |
| Generate(Token::ADD, INT32, INT32, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::ADD, INT32, INT32, INT32, OVERWRITE_LEFT, isolate); |
| Generate(Token::ADD, INT32, INT32, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::ADD, INT32, INT32, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::ADD, INT32, NUMBER, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::ADD, INT32, NUMBER, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::ADD, INT32, NUMBER, NUMBER, OVERWRITE_RIGHT, isolate); |
| Generate(Token::ADD, INT32, SMI, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::ADD, INT32, SMI, INT32, OVERWRITE_LEFT, isolate); |
| Generate(Token::ADD, INT32, SMI, INT32, OVERWRITE_RIGHT, isolate); |
| Generate(Token::ADD, NUMBER, INT32, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::ADD, NUMBER, INT32, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::ADD, NUMBER, INT32, NUMBER, OVERWRITE_RIGHT, isolate); |
| Generate(Token::ADD, NUMBER, NUMBER, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::ADD, NUMBER, NUMBER, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::ADD, NUMBER, NUMBER, NUMBER, OVERWRITE_RIGHT, isolate); |
| Generate(Token::ADD, NUMBER, SMI, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::ADD, NUMBER, SMI, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::ADD, NUMBER, SMI, NUMBER, OVERWRITE_RIGHT, isolate); |
| Generate(Token::ADD, SMI, INT32, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::ADD, SMI, INT32, INT32, OVERWRITE_LEFT, isolate); |
| Generate(Token::ADD, SMI, INT32, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::ADD, SMI, NUMBER, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::ADD, SMI, NUMBER, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::ADD, SMI, NUMBER, NUMBER, OVERWRITE_RIGHT, isolate); |
| Generate(Token::ADD, SMI, SMI, INT32, OVERWRITE_LEFT, isolate); |
| Generate(Token::ADD, SMI, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_AND, INT32, INT32, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_AND, INT32, INT32, INT32, OVERWRITE_LEFT, isolate); |
| Generate(Token::BIT_AND, INT32, INT32, INT32, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_AND, INT32, INT32, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_AND, INT32, INT32, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_AND, INT32, SMI, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_AND, INT32, SMI, INT32, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_AND, INT32, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_AND, INT32, SMI, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::BIT_AND, INT32, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_AND, NUMBER, INT32, INT32, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_AND, NUMBER, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_AND, NUMBER, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_AND, SMI, INT32, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_AND, SMI, INT32, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_AND, SMI, NUMBER, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_AND, SMI, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_AND, SMI, SMI, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::BIT_AND, SMI, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_OR, INT32, INT32, INT32, OVERWRITE_LEFT, isolate); |
| Generate(Token::BIT_OR, INT32, INT32, INT32, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_OR, INT32, INT32, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::BIT_OR, INT32, SMI, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_OR, INT32, SMI, INT32, OVERWRITE_LEFT, isolate); |
| Generate(Token::BIT_OR, INT32, SMI, INT32, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_OR, INT32, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_OR, INT32, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_OR, NUMBER, SMI, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_OR, NUMBER, SMI, INT32, OVERWRITE_LEFT, isolate); |
| Generate(Token::BIT_OR, NUMBER, SMI, INT32, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_OR, NUMBER, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_OR, NUMBER, SMI, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::BIT_OR, SMI, INT32, INT32, OVERWRITE_LEFT, isolate); |
| Generate(Token::BIT_OR, SMI, INT32, INT32, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_OR, SMI, INT32, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_OR, SMI, SMI, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::BIT_OR, SMI, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_XOR, INT32, INT32, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_XOR, INT32, INT32, INT32, OVERWRITE_LEFT, isolate); |
| Generate(Token::BIT_XOR, INT32, INT32, INT32, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_XOR, INT32, INT32, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_XOR, INT32, INT32, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::BIT_XOR, INT32, NUMBER, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_XOR, INT32, SMI, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_XOR, INT32, SMI, INT32, OVERWRITE_LEFT, isolate); |
| Generate(Token::BIT_XOR, INT32, SMI, INT32, OVERWRITE_RIGHT, isolate); |
| Generate(Token::BIT_XOR, NUMBER, INT32, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_XOR, NUMBER, SMI, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_XOR, NUMBER, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_XOR, SMI, INT32, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_XOR, SMI, INT32, INT32, OVERWRITE_LEFT, isolate); |
| Generate(Token::BIT_XOR, SMI, INT32, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::BIT_XOR, SMI, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::BIT_XOR, SMI, SMI, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::BIT_XOR, SMI, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::DIV, INT32, INT32, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::DIV, INT32, INT32, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::DIV, INT32, NUMBER, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::DIV, INT32, NUMBER, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::DIV, INT32, SMI, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::DIV, INT32, SMI, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::DIV, NUMBER, INT32, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::DIV, NUMBER, INT32, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::DIV, NUMBER, NUMBER, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::DIV, NUMBER, NUMBER, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::DIV, NUMBER, NUMBER, NUMBER, OVERWRITE_RIGHT, isolate); |
| Generate(Token::DIV, NUMBER, SMI, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::DIV, NUMBER, SMI, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::DIV, SMI, INT32, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::DIV, SMI, INT32, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::DIV, SMI, INT32, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::DIV, SMI, NUMBER, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::DIV, SMI, NUMBER, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::DIV, SMI, NUMBER, NUMBER, OVERWRITE_RIGHT, isolate); |
| Generate(Token::DIV, SMI, SMI, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::DIV, SMI, SMI, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::DIV, SMI, SMI, NUMBER, OVERWRITE_RIGHT, isolate); |
| Generate(Token::DIV, SMI, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::DIV, SMI, SMI, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::DIV, SMI, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::MOD, NUMBER, SMI, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::MOD, SMI, 16, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::MOD, SMI, 2, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::MOD, SMI, 2048, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::MOD, SMI, 32, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::MOD, SMI, 4, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::MOD, SMI, 4, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::MOD, SMI, 8, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::MOD, SMI, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::MOD, SMI, SMI, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::MUL, INT32, INT32, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::MUL, INT32, INT32, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::MUL, INT32, NUMBER, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::MUL, INT32, NUMBER, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::MUL, INT32, SMI, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::MUL, INT32, SMI, INT32, OVERWRITE_LEFT, isolate); |
| Generate(Token::MUL, INT32, SMI, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::MUL, NUMBER, INT32, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::MUL, NUMBER, INT32, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::MUL, NUMBER, INT32, NUMBER, OVERWRITE_RIGHT, isolate); |
| Generate(Token::MUL, NUMBER, NUMBER, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::MUL, NUMBER, NUMBER, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::MUL, NUMBER, SMI, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::MUL, NUMBER, SMI, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::MUL, NUMBER, SMI, NUMBER, OVERWRITE_RIGHT, isolate); |
| Generate(Token::MUL, SMI, INT32, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::MUL, SMI, INT32, INT32, OVERWRITE_LEFT, isolate); |
| Generate(Token::MUL, SMI, INT32, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::MUL, SMI, NUMBER, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::MUL, SMI, NUMBER, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::MUL, SMI, NUMBER, NUMBER, OVERWRITE_RIGHT, isolate); |
| Generate(Token::MUL, SMI, SMI, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::MUL, SMI, SMI, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::MUL, SMI, SMI, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::MUL, SMI, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::MUL, SMI, SMI, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::MUL, SMI, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::SAR, INT32, SMI, INT32, OVERWRITE_RIGHT, isolate); |
| Generate(Token::SAR, INT32, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::SAR, INT32, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::SAR, NUMBER, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::SAR, NUMBER, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::SAR, SMI, SMI, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::SAR, SMI, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::SHL, INT32, SMI, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::SHL, INT32, SMI, INT32, OVERWRITE_RIGHT, isolate); |
| Generate(Token::SHL, INT32, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::SHL, INT32, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::SHL, NUMBER, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::SHL, SMI, SMI, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::SHL, SMI, SMI, INT32, OVERWRITE_LEFT, isolate); |
| Generate(Token::SHL, SMI, SMI, INT32, OVERWRITE_RIGHT, isolate); |
| Generate(Token::SHL, SMI, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::SHL, SMI, SMI, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::SHL, SMI, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::SHR, INT32, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::SHR, INT32, SMI, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::SHR, INT32, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::SHR, NUMBER, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::SHR, NUMBER, SMI, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::SHR, SMI, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::SHR, SMI, SMI, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::SHR, SMI, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| Generate(Token::SUB, INT32, INT32, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::SUB, INT32, INT32, INT32, OVERWRITE_LEFT, isolate); |
| Generate(Token::SUB, INT32, NUMBER, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::SUB, INT32, NUMBER, NUMBER, OVERWRITE_RIGHT, isolate); |
| Generate(Token::SUB, INT32, SMI, INT32, OVERWRITE_LEFT, isolate); |
| Generate(Token::SUB, INT32, SMI, INT32, OVERWRITE_RIGHT, isolate); |
| Generate(Token::SUB, NUMBER, INT32, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::SUB, NUMBER, INT32, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::SUB, NUMBER, NUMBER, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::SUB, NUMBER, NUMBER, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::SUB, NUMBER, NUMBER, NUMBER, OVERWRITE_RIGHT, isolate); |
| Generate(Token::SUB, NUMBER, SMI, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::SUB, NUMBER, SMI, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::SUB, NUMBER, SMI, NUMBER, OVERWRITE_RIGHT, isolate); |
| Generate(Token::SUB, SMI, INT32, INT32, NO_OVERWRITE, isolate); |
| Generate(Token::SUB, SMI, NUMBER, NUMBER, NO_OVERWRITE, isolate); |
| Generate(Token::SUB, SMI, NUMBER, NUMBER, OVERWRITE_LEFT, isolate); |
| Generate(Token::SUB, SMI, NUMBER, NUMBER, OVERWRITE_RIGHT, isolate); |
| Generate(Token::SUB, SMI, SMI, SMI, NO_OVERWRITE, isolate); |
| Generate(Token::SUB, SMI, SMI, SMI, OVERWRITE_LEFT, isolate); |
| Generate(Token::SUB, SMI, SMI, SMI, OVERWRITE_RIGHT, isolate); |
| } |
| |
| |
| bool BinaryOpStub::can_encode_arg_value(int32_t value) const { |
| return op_ == Token::MOD && value > 0 && IsPowerOf2(value) && |
| FixedRightArgValueBits::is_valid(WhichPowerOf2(value)); |
| } |
| |
| |
| int BinaryOpStub::encode_arg_value(int32_t value) const { |
| ASSERT(can_encode_arg_value(value)); |
| return WhichPowerOf2(value); |
| } |
| |
| |
| int32_t BinaryOpStub::decode_arg_value(int value) const { |
| return 1 << value; |
| } |
| |
| |
| int BinaryOpStub::encode_token(Token::Value op) const { |
| ASSERT(op >= FIRST_TOKEN && op <= LAST_TOKEN); |
| return op - FIRST_TOKEN; |
| } |
| |
| |
| Token::Value BinaryOpStub::decode_token(int op) const { |
| int res = op + FIRST_TOKEN; |
| ASSERT(res >= FIRST_TOKEN && res <= LAST_TOKEN); |
| return static_cast<Token::Value>(res); |
| } |
| |
| |
| const char* BinaryOpStub::StateToName(State state) { |
| switch (state) { |
| case NONE: |
| return "None"; |
| case SMI: |
| return "Smi"; |
| case INT32: |
| return "Int32"; |
| case NUMBER: |
| return "Number"; |
| case STRING: |
| return "String"; |
| case GENERIC: |
| return "Generic"; |
| } |
| return ""; |
| } |
| |
| |
| void BinaryOpStub::UpdateStatus(Handle<Object> left, |
| Handle<Object> right, |
| Maybe<Handle<Object> > result) { |
| int old_state = GetExtraICState(); |
| |
| UpdateStatus(left, &left_state_); |
| UpdateStatus(right, &right_state_); |
| |
| int32_t value; |
| bool new_has_fixed_right_arg = |
| right->ToInt32(&value) && can_encode_arg_value(value) && |
| (left_state_ == SMI || left_state_ == INT32) && |
| (result_state_ == NONE || !fixed_right_arg_.has_value); |
| |
| fixed_right_arg_ = Maybe<int32_t>(new_has_fixed_right_arg, value); |
| |
| if (result.has_value) UpdateStatus(result.value, &result_state_); |
| |
| State max_input = Max(left_state_, right_state_); |
| |
| // Avoid unnecessary Representation changes. |
| if (left_state_ == STRING && right_state_ < STRING) { |
| right_state_ = GENERIC; |
| } else if (right_state_ == STRING && left_state_ < STRING) { |
| left_state_ = GENERIC; |
| } else if ((right_state_ == GENERIC && left_state_ != STRING) || |
| (left_state_ == GENERIC && right_state_ != STRING)) { |
| left_state_ = right_state_ = GENERIC; |
| } else if (!has_int_result() && op_ != Token::SHR && |
| max_input <= NUMBER && max_input > result_state_) { |
| result_state_ = max_input; |
| } |
| |
| ASSERT(result_state_ <= (has_int_result() ? INT32 : NUMBER) || |
| op_ == Token::ADD); |
| |
| if (old_state == GetExtraICState()) { |
| // Since the fpu is to precise, we might bail out on numbers which |
| // actually would truncate with 64 bit precision. |
| ASSERT(!CpuFeatures::IsSupported(SSE2) && |
| result_state_ <= INT32); |
| result_state_ = NUMBER; |
| } |
| } |
| |
| |
| void BinaryOpStub::UpdateStatus(Handle<Object> object, |
| State* state) { |
| v8::internal::TypeInfo type = v8::internal::TypeInfo::FromValue(object); |
| if (object->IsUndefined()) { |
| // Undefined will be automatically truncated for us by HChange. |
| type = (op_ == Token::BIT_AND || op_ == Token::BIT_OR || |
| op_ == Token::BIT_XOR || op_ == Token::SAR || |
| op_ == Token::SHL || op_ == Token::SHR) |
| ? TypeInfo::Integer32() |
| : TypeInfo::Double(); |
| } |
| State int_state = SmiValuesAre32Bits() ? NUMBER : INT32; |
| State new_state = NONE; |
| if (type.IsSmi()) { |
| new_state = SMI; |
| } else if (type.IsInteger32()) { |
| new_state = int_state; |
| } else if (type.IsNumber()) { |
| new_state = NUMBER; |
| } else if (object->IsString() && operation() == Token::ADD) { |
| new_state = STRING; |
| } else { |
| new_state = GENERIC; |
| } |
| if ((new_state <= NUMBER && *state > NUMBER) || |
| (new_state > NUMBER && *state <= NUMBER && *state != NONE)) { |
| new_state = GENERIC; |
| } |
| *state = Max(*state, new_state); |
| } |
| |
| |
| Handle<Type> BinaryOpStub::StateToType(State state, |
| Isolate* isolate) { |
| Handle<Type> t = handle(Type::None(), isolate); |
| switch (state) { |
| case NUMBER: |
| t = handle(Type::Union(t, handle(Type::Double(), isolate)), isolate); |
| // Fall through. |
| case INT32: |
| t = handle(Type::Union(t, handle(Type::Signed32(), isolate)), isolate); |
| // Fall through. |
| case SMI: |
| t = handle(Type::Union(t, handle(Type::Smi(), isolate)), isolate); |
| break; |
| |
| case STRING: |
| t = handle(Type::Union(t, handle(Type::String(), isolate)), isolate); |
| break; |
| case GENERIC: |
| return handle(Type::Any(), isolate); |
| break; |
| case NONE: |
| break; |
| } |
| return t; |
| } |
| |
| |
| Handle<Type> BinaryOpStub::GetLeftType(Isolate* isolate) const { |
| return StateToType(left_state_, isolate); |
| } |
| |
| |
| Handle<Type> BinaryOpStub::GetRightType(Isolate* isolate) const { |
| return StateToType(right_state_, isolate); |
| } |
| |
| |
| Handle<Type> BinaryOpStub::GetResultType(Isolate* isolate) const { |
| if (HasSideEffects(isolate)) return StateToType(NONE, isolate); |
| if (result_state_ == GENERIC && op_ == Token::ADD) { |
| return handle(Type::Union(handle(Type::Number(), isolate), |
| handle(Type::String(), isolate)), isolate); |
| } |
| ASSERT(result_state_ != GENERIC); |
| if (result_state_ == NUMBER && op_ == Token::SHR) { |
| return handle(Type::Unsigned32(), isolate); |
| } |
| return StateToType(result_state_, isolate); |
| } |
| |
| |
| InlineCacheState ICCompareStub::GetICState() { |
| CompareIC::State state = Max(left_, right_); |
| switch (state) { |
| case CompareIC::UNINITIALIZED: |
| return ::v8::internal::UNINITIALIZED; |
| case CompareIC::SMI: |
| case CompareIC::NUMBER: |
| case CompareIC::INTERNALIZED_STRING: |
| case CompareIC::STRING: |
| case CompareIC::UNIQUE_NAME: |
| case CompareIC::OBJECT: |
| case CompareIC::KNOWN_OBJECT: |
| return MONOMORPHIC; |
| case CompareIC::GENERIC: |
| return ::v8::internal::GENERIC; |
| } |
| UNREACHABLE(); |
| return ::v8::internal::UNINITIALIZED; |
| } |
| |
| |
| void ICCompareStub::AddToSpecialCache(Handle<Code> new_object) { |
| ASSERT(*known_map_ != NULL); |
| Isolate* isolate = new_object->GetIsolate(); |
| Factory* factory = isolate->factory(); |
| return Map::UpdateCodeCache(known_map_, |
| strict() ? |
| factory->strict_compare_ic_string() : |
| factory->compare_ic_string(), |
| new_object); |
| } |
| |
| |
| bool ICCompareStub::FindCodeInSpecialCache(Code** code_out, Isolate* isolate) { |
| Factory* factory = isolate->factory(); |
| Code::Flags flags = Code::ComputeFlags( |
| GetCodeKind(), |
| UNINITIALIZED); |
| ASSERT(op_ == Token::EQ || op_ == Token::EQ_STRICT); |
| Handle<Object> probe( |
| known_map_->FindInCodeCache( |
| strict() ? |
| *factory->strict_compare_ic_string() : |
| *factory->compare_ic_string(), |
| flags), |
| isolate); |
| if (probe->IsCode()) { |
| *code_out = Code::cast(*probe); |
| #ifdef DEBUG |
| Token::Value cached_op; |
| ICCompareStub::DecodeMinorKey((*code_out)->stub_info(), NULL, NULL, NULL, |
| &cached_op); |
| ASSERT(op_ == cached_op); |
| #endif |
| return true; |
| } |
| return false; |
| } |
| |
| |
| int ICCompareStub::MinorKey() { |
| return OpField::encode(op_ - Token::EQ) | |
| LeftStateField::encode(left_) | |
| RightStateField::encode(right_) | |
| HandlerStateField::encode(state_); |
| } |
| |
| |
| void ICCompareStub::DecodeMinorKey(int minor_key, |
| CompareIC::State* left_state, |
| CompareIC::State* right_state, |
| CompareIC::State* handler_state, |
| Token::Value* op) { |
| if (left_state) { |
| *left_state = |
| static_cast<CompareIC::State>(LeftStateField::decode(minor_key)); |
| } |
| if (right_state) { |
| *right_state = |
| static_cast<CompareIC::State>(RightStateField::decode(minor_key)); |
| } |
| if (handler_state) { |
| *handler_state = |
| static_cast<CompareIC::State>(HandlerStateField::decode(minor_key)); |
| } |
| if (op) { |
| *op = static_cast<Token::Value>(OpField::decode(minor_key) + Token::EQ); |
| } |
| } |
| |
| |
| void ICCompareStub::Generate(MacroAssembler* masm) { |
| switch (state_) { |
| case CompareIC::UNINITIALIZED: |
| GenerateMiss(masm); |
| break; |
| case CompareIC::SMI: |
| GenerateSmis(masm); |
| break; |
| case CompareIC::NUMBER: |
| GenerateNumbers(masm); |
| break; |
| case CompareIC::STRING: |
| GenerateStrings(masm); |
| break; |
| case CompareIC::INTERNALIZED_STRING: |
| GenerateInternalizedStrings(masm); |
| break; |
| case CompareIC::UNIQUE_NAME: |
| GenerateUniqueNames(masm); |
| break; |
| case CompareIC::OBJECT: |
| GenerateObjects(masm); |
| break; |
| case CompareIC::KNOWN_OBJECT: |
| ASSERT(*known_map_ != NULL); |
| GenerateKnownObjects(masm); |
| break; |
| case CompareIC::GENERIC: |
| GenerateGeneric(masm); |
| break; |
| } |
| } |
| |
| |
| void CompareNilICStub::UpdateStatus(Handle<Object> object) { |
| ASSERT(!state_.Contains(GENERIC)); |
| State old_state(state_); |
| if (object->IsNull()) { |
| state_.Add(NULL_TYPE); |
| } else if (object->IsUndefined()) { |
| state_.Add(UNDEFINED); |
| } else if (object->IsUndetectableObject() || |
| object->IsOddball() || |
| !object->IsHeapObject()) { |
| state_.RemoveAll(); |
| state_.Add(GENERIC); |
| } else if (IsMonomorphic()) { |
| state_.RemoveAll(); |
| state_.Add(GENERIC); |
| } else { |
| state_.Add(MONOMORPHIC_MAP); |
| } |
| TraceTransition(old_state, state_); |
| } |
| |
| |
| template<class StateType> |
| void HydrogenCodeStub::TraceTransition(StateType from, StateType to) { |
| // Note: Although a no-op transition is semantically OK, it is hinting at a |
| // bug somewhere in our state transition machinery. |
| ASSERT(from != to); |
| #ifdef DEBUG |
| if (!FLAG_trace_ic) return; |
| char buffer[100]; |
| NoAllocationStringAllocator allocator(buffer, |
| static_cast<unsigned>(sizeof(buffer))); |
| StringStream stream(&allocator); |
| stream.Add("["); |
| PrintBaseName(&stream); |
| stream.Add(": "); |
| from.Print(&stream); |
| stream.Add("=>"); |
| to.Print(&stream); |
| stream.Add("]\n"); |
| stream.OutputToStdOut(); |
| #endif |
| } |
| |
| |
| void CompareNilICStub::PrintBaseName(StringStream* stream) { |
| CodeStub::PrintBaseName(stream); |
| stream->Add((nil_value_ == kNullValue) ? "(NullValue)": |
| "(UndefinedValue)"); |
| } |
| |
| |
| void CompareNilICStub::PrintState(StringStream* stream) { |
| state_.Print(stream); |
| } |
| |
| |
| void CompareNilICStub::State::Print(StringStream* stream) const { |
| stream->Add("("); |
| SimpleListPrinter printer(stream); |
| if (IsEmpty()) printer.Add("None"); |
| if (Contains(UNDEFINED)) printer.Add("Undefined"); |
| if (Contains(NULL_TYPE)) printer.Add("Null"); |
| if (Contains(MONOMORPHIC_MAP)) printer.Add("MonomorphicMap"); |
| if (Contains(GENERIC)) printer.Add("Generic"); |
| stream->Add(")"); |
| } |
| |
| |
| Handle<Type> CompareNilICStub::GetType( |
| Isolate* isolate, |
| Handle<Map> map) { |
| if (state_.Contains(CompareNilICStub::GENERIC)) { |
| return handle(Type::Any(), isolate); |
| } |
| |
| Handle<Type> result(Type::None(), isolate); |
| if (state_.Contains(CompareNilICStub::UNDEFINED)) { |
| result = handle(Type::Union(result, handle(Type::Undefined(), isolate)), |
| isolate); |
| } |
| if (state_.Contains(CompareNilICStub::NULL_TYPE)) { |
| result = handle(Type::Union(result, handle(Type::Null(), isolate)), |
| isolate); |
| } |
| if (state_.Contains(CompareNilICStub::MONOMORPHIC_MAP)) { |
| Type* type = map.is_null() ? Type::Detectable() : Type::Class(map); |
| result = handle(Type::Union(result, handle(type, isolate)), isolate); |
| } |
| |
| return result; |
| } |
| |
| |
| Handle<Type> CompareNilICStub::GetInputType( |
| Isolate* isolate, |
| Handle<Map> map) { |
| Handle<Type> output_type = GetType(isolate, map); |
| Handle<Type> nil_type = handle(nil_value_ == kNullValue |
| ? Type::Null() : Type::Undefined(), isolate); |
| return handle(Type::Union(output_type, nil_type), isolate); |
| } |
| |
| |
| void InstanceofStub::PrintName(StringStream* stream) { |
| const char* args = ""; |
| if (HasArgsInRegisters()) { |
| args = "_REGS"; |
| } |
| |
| const char* inline_check = ""; |
| if (HasCallSiteInlineCheck()) { |
| inline_check = "_INLINE"; |
| } |
| |
| const char* return_true_false_object = ""; |
| if (ReturnTrueFalseObject()) { |
| return_true_false_object = "_TRUEFALSE"; |
| } |
| |
| stream->Add("InstanceofStub%s%s%s", |
| args, |
| inline_check, |
| return_true_false_object); |
| } |
| |
| |
| void JSEntryStub::FinishCode(Handle<Code> code) { |
| Handle<FixedArray> handler_table = |
| code->GetIsolate()->factory()->NewFixedArray(1, TENURED); |
| handler_table->set(0, Smi::FromInt(handler_offset_)); |
| code->set_handler_table(*handler_table); |
| } |
| |
| |
| void KeyedLoadDictionaryElementStub::Generate(MacroAssembler* masm) { |
| KeyedLoadStubCompiler::GenerateLoadDictionaryElement(masm); |
| } |
| |
| |
| void CreateAllocationSiteStub::GenerateAheadOfTime(Isolate* isolate) { |
| CreateAllocationSiteStub stub; |
| stub.GetCode(isolate)->set_is_pregenerated(true); |
| } |
| |
| |
| void KeyedStoreElementStub::Generate(MacroAssembler* masm) { |
| switch (elements_kind_) { |
| case FAST_ELEMENTS: |
| case FAST_HOLEY_ELEMENTS: |
| case FAST_SMI_ELEMENTS: |
| case FAST_HOLEY_SMI_ELEMENTS: |
| case FAST_DOUBLE_ELEMENTS: |
| case FAST_HOLEY_DOUBLE_ELEMENTS: |
| case EXTERNAL_BYTE_ELEMENTS: |
| case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
| case EXTERNAL_SHORT_ELEMENTS: |
| case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
| case EXTERNAL_INT_ELEMENTS: |
| case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
| case EXTERNAL_FLOAT_ELEMENTS: |
| case EXTERNAL_DOUBLE_ELEMENTS: |
| case EXTERNAL_PIXEL_ELEMENTS: |
| UNREACHABLE(); |
| break; |
| case DICTIONARY_ELEMENTS: |
| KeyedStoreStubCompiler::GenerateStoreDictionaryElement(masm); |
| break; |
| case NON_STRICT_ARGUMENTS_ELEMENTS: |
| UNREACHABLE(); |
| break; |
| } |
| } |
| |
| |
| void ArgumentsAccessStub::PrintName(StringStream* stream) { |
| stream->Add("ArgumentsAccessStub_"); |
| switch (type_) { |
| case READ_ELEMENT: stream->Add("ReadElement"); break; |
| case NEW_NON_STRICT_FAST: stream->Add("NewNonStrictFast"); break; |
| case NEW_NON_STRICT_SLOW: stream->Add("NewNonStrictSlow"); break; |
| case NEW_STRICT: stream->Add("NewStrict"); break; |
| } |
| } |
| |
| |
| void CallFunctionStub::PrintName(StringStream* stream) { |
| stream->Add("CallFunctionStub_Args%d", argc_); |
| if (ReceiverMightBeImplicit()) stream->Add("_Implicit"); |
| if (RecordCallTarget()) stream->Add("_Recording"); |
| } |
| |
| |
| void CallConstructStub::PrintName(StringStream* stream) { |
| stream->Add("CallConstructStub"); |
| if (RecordCallTarget()) stream->Add("_Recording"); |
| } |
| |
| |
| bool ToBooleanStub::UpdateStatus(Handle<Object> object) { |
| Types old_types(types_); |
| bool to_boolean_value = types_.UpdateStatus(object); |
| TraceTransition(old_types, types_); |
| return to_boolean_value; |
| } |
| |
| |
| void ToBooleanStub::PrintState(StringStream* stream) { |
| types_.Print(stream); |
| } |
| |
| |
| void ToBooleanStub::Types::Print(StringStream* stream) const { |
| stream->Add("("); |
| SimpleListPrinter printer(stream); |
| if (IsEmpty()) printer.Add("None"); |
| if (Contains(UNDEFINED)) printer.Add("Undefined"); |
| if (Contains(BOOLEAN)) printer.Add("Bool"); |
| if (Contains(NULL_TYPE)) printer.Add("Null"); |
| if (Contains(SMI)) printer.Add("Smi"); |
| if (Contains(SPEC_OBJECT)) printer.Add("SpecObject"); |
| if (Contains(STRING)) printer.Add("String"); |
| if (Contains(SYMBOL)) printer.Add("Symbol"); |
| if (Contains(HEAP_NUMBER)) printer.Add("HeapNumber"); |
| stream->Add(")"); |
| } |
| |
| |
| bool ToBooleanStub::Types::UpdateStatus(Handle<Object> object) { |
| if (object->IsUndefined()) { |
| Add(UNDEFINED); |
| return false; |
| } else if (object->IsBoolean()) { |
| Add(BOOLEAN); |
| return object->IsTrue(); |
| } else if (object->IsNull()) { |
| Add(NULL_TYPE); |
| return false; |
| } else if (object->IsSmi()) { |
| Add(SMI); |
| return Smi::cast(*object)->value() != 0; |
| } else if (object->IsSpecObject()) { |
| Add(SPEC_OBJECT); |
| return !object->IsUndetectableObject(); |
| } else if (object->IsString()) { |
| Add(STRING); |
| return !object->IsUndetectableObject() && |
| String::cast(*object)->length() != 0; |
| } else if (object->IsSymbol()) { |
| Add(SYMBOL); |
| return true; |
| } else if (object->IsHeapNumber()) { |
| ASSERT(!object->IsUndetectableObject()); |
| Add(HEAP_NUMBER); |
| double value = HeapNumber::cast(*object)->value(); |
| return value != 0 && !std::isnan(value); |
| } else { |
| // We should never see an internal object at runtime here! |
| UNREACHABLE(); |
| return true; |
| } |
| } |
| |
| |
| bool ToBooleanStub::Types::NeedsMap() const { |
| return Contains(ToBooleanStub::SPEC_OBJECT) |
| || Contains(ToBooleanStub::STRING) |
| || Contains(ToBooleanStub::SYMBOL) |
| || Contains(ToBooleanStub::HEAP_NUMBER); |
| } |
| |
| |
| bool ToBooleanStub::Types::CanBeUndetectable() const { |
| return Contains(ToBooleanStub::SPEC_OBJECT) |
| || Contains(ToBooleanStub::STRING); |
| } |
| |
| |
| void StubFailureTrampolineStub::GenerateAheadOfTime(Isolate* isolate) { |
| StubFailureTrampolineStub stub1(NOT_JS_FUNCTION_STUB_MODE); |
| StubFailureTrampolineStub stub2(JS_FUNCTION_STUB_MODE); |
| stub1.GetCode(isolate)->set_is_pregenerated(true); |
| stub2.GetCode(isolate)->set_is_pregenerated(true); |
| } |
| |
| |
| void ProfileEntryHookStub::EntryHookTrampoline(intptr_t function, |
| intptr_t stack_pointer, |
| Isolate* isolate) { |
| FunctionEntryHook entry_hook = isolate->function_entry_hook(); |
| ASSERT(entry_hook != NULL); |
| entry_hook(function, stack_pointer); |
| } |
| |
| |
| static void InstallDescriptor(Isolate* isolate, HydrogenCodeStub* stub) { |
| int major_key = stub->MajorKey(); |
| CodeStubInterfaceDescriptor* descriptor = |
| isolate->code_stub_interface_descriptor(major_key); |
| if (!descriptor->initialized()) { |
| stub->InitializeInterfaceDescriptor(isolate, descriptor); |
| } |
| } |
| |
| |
| void ArrayConstructorStubBase::InstallDescriptors(Isolate* isolate) { |
| ArrayNoArgumentConstructorStub stub1(GetInitialFastElementsKind()); |
| InstallDescriptor(isolate, &stub1); |
| ArraySingleArgumentConstructorStub stub2(GetInitialFastElementsKind()); |
| InstallDescriptor(isolate, &stub2); |
| ArrayNArgumentsConstructorStub stub3(GetInitialFastElementsKind()); |
| InstallDescriptor(isolate, &stub3); |
| } |
| |
| |
| void FastNewClosureStub::InstallDescriptors(Isolate* isolate) { |
| FastNewClosureStub stub(STRICT_MODE, false); |
| InstallDescriptor(isolate, &stub); |
| } |
| |
| |
| ArrayConstructorStub::ArrayConstructorStub(Isolate* isolate) |
| : argument_count_(ANY) { |
| ArrayConstructorStubBase::GenerateStubsAheadOfTime(isolate); |
| } |
| |
| |
| ArrayConstructorStub::ArrayConstructorStub(Isolate* isolate, |
| int argument_count) { |
| if (argument_count == 0) { |
| argument_count_ = NONE; |
| } else if (argument_count == 1) { |
| argument_count_ = ONE; |
| } else if (argument_count >= 2) { |
| argument_count_ = MORE_THAN_ONE; |
| } else { |
| UNREACHABLE(); |
| } |
| ArrayConstructorStubBase::GenerateStubsAheadOfTime(isolate); |
| } |
| |
| |
| void InternalArrayConstructorStubBase::InstallDescriptors(Isolate* isolate) { |
| InternalArrayNoArgumentConstructorStub stub1(FAST_ELEMENTS); |
| InstallDescriptor(isolate, &stub1); |
| InternalArraySingleArgumentConstructorStub stub2(FAST_ELEMENTS); |
| InstallDescriptor(isolate, &stub2); |
| InternalArrayNArgumentsConstructorStub stub3(FAST_ELEMENTS); |
| InstallDescriptor(isolate, &stub3); |
| } |
| |
| InternalArrayConstructorStub::InternalArrayConstructorStub( |
| Isolate* isolate) { |
| InternalArrayConstructorStubBase::GenerateStubsAheadOfTime(isolate); |
| } |
| |
| |
| } } // namespace v8::internal |