| // Copyright 2015 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "src/runtime/runtime-utils.h" |
| |
| #include <iomanip> |
| |
| #include "src/arguments.h" |
| #include "src/frames-inl.h" |
| #include "src/interpreter/bytecode-array-iterator.h" |
| #include "src/interpreter/bytecodes.h" |
| #include "src/isolate-inl.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| |
| RUNTIME_FUNCTION(Runtime_InterpreterEquals) { |
| HandleScope scope(isolate); |
| DCHECK_EQ(2, args.length()); |
| CONVERT_ARG_HANDLE_CHECKED(Object, x, 0); |
| CONVERT_ARG_HANDLE_CHECKED(Object, y, 1); |
| Maybe<bool> result = Object::Equals(x, y); |
| if (result.IsJust()) { |
| return isolate->heap()->ToBoolean(result.FromJust()); |
| } else { |
| return isolate->heap()->exception(); |
| } |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_InterpreterNotEquals) { |
| HandleScope scope(isolate); |
| DCHECK_EQ(2, args.length()); |
| CONVERT_ARG_HANDLE_CHECKED(Object, x, 0); |
| CONVERT_ARG_HANDLE_CHECKED(Object, y, 1); |
| Maybe<bool> result = Object::Equals(x, y); |
| if (result.IsJust()) { |
| return isolate->heap()->ToBoolean(!result.FromJust()); |
| } else { |
| return isolate->heap()->exception(); |
| } |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_InterpreterLessThan) { |
| HandleScope scope(isolate); |
| DCHECK_EQ(2, args.length()); |
| CONVERT_ARG_HANDLE_CHECKED(Object, x, 0); |
| CONVERT_ARG_HANDLE_CHECKED(Object, y, 1); |
| Maybe<bool> result = Object::LessThan(x, y); |
| if (result.IsJust()) { |
| return isolate->heap()->ToBoolean(result.FromJust()); |
| } else { |
| return isolate->heap()->exception(); |
| } |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_InterpreterGreaterThan) { |
| HandleScope scope(isolate); |
| DCHECK_EQ(2, args.length()); |
| CONVERT_ARG_HANDLE_CHECKED(Object, x, 0); |
| CONVERT_ARG_HANDLE_CHECKED(Object, y, 1); |
| Maybe<bool> result = Object::GreaterThan(x, y); |
| if (result.IsJust()) { |
| return isolate->heap()->ToBoolean(result.FromJust()); |
| } else { |
| return isolate->heap()->exception(); |
| } |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_InterpreterLessThanOrEqual) { |
| HandleScope scope(isolate); |
| DCHECK_EQ(2, args.length()); |
| CONVERT_ARG_HANDLE_CHECKED(Object, x, 0); |
| CONVERT_ARG_HANDLE_CHECKED(Object, y, 1); |
| Maybe<bool> result = Object::LessThanOrEqual(x, y); |
| if (result.IsJust()) { |
| return isolate->heap()->ToBoolean(result.FromJust()); |
| } else { |
| return isolate->heap()->exception(); |
| } |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_InterpreterGreaterThanOrEqual) { |
| HandleScope scope(isolate); |
| DCHECK_EQ(2, args.length()); |
| CONVERT_ARG_HANDLE_CHECKED(Object, x, 0); |
| CONVERT_ARG_HANDLE_CHECKED(Object, y, 1); |
| Maybe<bool> result = Object::GreaterThanOrEqual(x, y); |
| if (result.IsJust()) { |
| return isolate->heap()->ToBoolean(result.FromJust()); |
| } else { |
| return isolate->heap()->exception(); |
| } |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_InterpreterStrictEquals) { |
| SealHandleScope shs(isolate); |
| DCHECK_EQ(2, args.length()); |
| CONVERT_ARG_CHECKED(Object, x, 0); |
| CONVERT_ARG_CHECKED(Object, y, 1); |
| return isolate->heap()->ToBoolean(x->StrictEquals(y)); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_InterpreterStrictNotEquals) { |
| SealHandleScope shs(isolate); |
| DCHECK_EQ(2, args.length()); |
| CONVERT_ARG_CHECKED(Object, x, 0); |
| CONVERT_ARG_CHECKED(Object, y, 1); |
| return isolate->heap()->ToBoolean(!x->StrictEquals(y)); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_InterpreterToBoolean) { |
| SealHandleScope shs(isolate); |
| DCHECK_EQ(1, args.length()); |
| CONVERT_ARG_CHECKED(Object, x, 0); |
| return isolate->heap()->ToBoolean(x->BooleanValue()); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_InterpreterLogicalNot) { |
| SealHandleScope shs(isolate); |
| DCHECK_EQ(1, args.length()); |
| CONVERT_ARG_CHECKED(Object, x, 0); |
| return isolate->heap()->ToBoolean(!x->BooleanValue()); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_InterpreterTypeOf) { |
| SealHandleScope shs(isolate); |
| DCHECK_EQ(1, args.length()); |
| CONVERT_ARG_HANDLE_CHECKED(Object, x, 0); |
| return Object::cast(*Object::TypeOf(isolate, x)); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_InterpreterNewClosure) { |
| HandleScope scope(isolate); |
| DCHECK_EQ(2, args.length()); |
| CONVERT_ARG_HANDLE_CHECKED(SharedFunctionInfo, shared, 0); |
| CONVERT_SMI_ARG_CHECKED(pretenured_flag, 1); |
| Handle<Context> context(isolate->context(), isolate); |
| return *isolate->factory()->NewFunctionFromSharedFunctionInfo( |
| shared, context, static_cast<PretenureFlag>(pretenured_flag)); |
| } |
| |
| namespace { |
| |
| void PrintRegisters(std::ostream& os, bool is_input, |
| Handle<BytecodeArray> bytecode_array, int bytecode_offset, |
| Handle<Object> accumulator) { |
| static const int kRegFieldWidth = static_cast<int>(strlen("accumulator")); |
| static const char* kInputColourCode = "\033[0;36m"; |
| static const char* kOutputColourCode = "\033[0;35m"; |
| static const char* kNormalColourCode = "\033[0;m"; |
| const char* kArrowDirection = is_input ? " -> " : " <- "; |
| if (FLAG_log_colour) { |
| os << (is_input ? kInputColourCode : kOutputColourCode); |
| } |
| |
| // Print accumulator. |
| os << " [ accumulator" << kArrowDirection; |
| accumulator->ShortPrint(); |
| os << " ]" << std::endl; |
| |
| // Find the location of the register file. |
| JavaScriptFrameIterator frame_iterator(bytecode_array->GetIsolate()); |
| JavaScriptFrame* frame = frame_iterator.frame(); |
| Address register_file = |
| frame->fp() + InterpreterFrameConstants::kRegisterFilePointerFromFp; |
| |
| // Print the registers. |
| interpreter::BytecodeArrayIterator bytecode_iterator(bytecode_array); |
| bytecode_iterator.set_current_offset( |
| bytecode_offset - BytecodeArray::kHeaderSize + kHeapObjectTag); |
| interpreter::Bytecode bytecode = bytecode_iterator.current_bytecode(); |
| int operand_count = interpreter::Bytecodes::NumberOfOperands(bytecode); |
| for (int operand_index = 0; operand_index < operand_count; operand_index++) { |
| interpreter::OperandType operand_type = |
| interpreter::Bytecodes::GetOperandType(bytecode, operand_index); |
| bool should_print = |
| is_input |
| ? interpreter::Bytecodes::IsRegisterInputOperandType(operand_type) |
| : interpreter::Bytecodes::IsRegisterOutputOperandType(operand_type); |
| if (should_print) { |
| interpreter::Register first_reg = |
| bytecode_iterator.GetRegisterOperand(operand_index); |
| int range = bytecode_iterator.GetRegisterOperandRange(operand_index); |
| for (int reg_index = first_reg.index(); |
| reg_index < first_reg.index() + range; reg_index++) { |
| Address reg_location = register_file - reg_index * kPointerSize; |
| Object* reg_object = Memory::Object_at(reg_location); |
| os << " [ " << std::setw(kRegFieldWidth) |
| << interpreter::Register(reg_index).ToString( |
| bytecode_array->parameter_count()) |
| << kArrowDirection; |
| reg_object->ShortPrint(os); |
| os << " ]" << std::endl; |
| } |
| } |
| } |
| if (FLAG_log_colour) { |
| os << kNormalColourCode; |
| } |
| } |
| |
| } // namespace |
| |
| RUNTIME_FUNCTION(Runtime_InterpreterTraceBytecodeEntry) { |
| SealHandleScope shs(isolate); |
| DCHECK_EQ(3, args.length()); |
| CONVERT_ARG_HANDLE_CHECKED(BytecodeArray, bytecode_array, 0); |
| CONVERT_SMI_ARG_CHECKED(bytecode_offset, 1); |
| CONVERT_ARG_HANDLE_CHECKED(Object, accumulator, 2); |
| OFStream os(stdout); |
| |
| // Print bytecode. |
| const uint8_t* bytecode_address = |
| reinterpret_cast<const uint8_t*>(*bytecode_array) + bytecode_offset; |
| Vector<char> buf = Vector<char>::New(50); |
| SNPrintF(buf, "%p", bytecode_address); |
| os << " -> " << buf.start() << " (" << bytecode_offset << ") : "; |
| interpreter::Bytecodes::Decode(os, bytecode_address, |
| bytecode_array->parameter_count()); |
| os << std::endl; |
| |
| // Print all input registers and accumulator. |
| PrintRegisters(os, true, bytecode_array, bytecode_offset, accumulator); |
| |
| os << std::flush; |
| return isolate->heap()->undefined_value(); |
| } |
| |
| RUNTIME_FUNCTION(Runtime_InterpreterTraceBytecodeExit) { |
| SealHandleScope shs(isolate); |
| DCHECK_EQ(3, args.length()); |
| CONVERT_ARG_HANDLE_CHECKED(BytecodeArray, bytecode_array, 0); |
| CONVERT_SMI_ARG_CHECKED(bytecode_offset, 1); |
| CONVERT_ARG_HANDLE_CHECKED(Object, accumulator, 2); |
| OFStream os(stdout); |
| |
| // Print all output registers and accumulator. |
| PrintRegisters(os, false, bytecode_array, bytecode_offset, accumulator); |
| os << std::flush; |
| return isolate->heap()->undefined_value(); |
| } |
| |
| } // namespace internal |
| } // namespace v8 |