[Interpreter] Make InterpreterAssembler a subclass of CodeStubAssembler.

src/compiler/interpreter-assembler.h

-// 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.
-
-#ifndef V8_COMPILER_INTERPRETER_ASSEMBLER_H_
-#define V8_COMPILER_INTERPRETER_ASSEMBLER_H_
-
-// Clients of this interface shouldn't depend on lots of compiler internals.
-// Do not include anything from src/compiler here!
-#include "src/allocation.h"
-#include "src/base/smart-pointers.h"
-#include "src/builtins.h"
-#include "src/frames.h"
-#include "src/interpreter/bytecodes.h"
-#include "src/runtime/runtime.h"
-
-namespace v8 {
-namespace internal {
-
-class CallInterfaceDescriptor;
-class Isolate;
-class Zone;
-
-namespace compiler {
-
-class CallDescriptor;
-class Graph;
-class Node;
-class Operator;
-class RawMachineAssembler;
-class Schedule;
-
-class InterpreterAssembler {
- public:
-  InterpreterAssembler(Isolate* isolate, Zone* zone,
-                       interpreter::Bytecode bytecode);
-  virtual ~InterpreterAssembler();
-
-  Handle<Code> GenerateCode();
-
-  // Returns the count immediate for bytecode operand |operand_index| in the
-  // current bytecode.
-  Node* BytecodeOperandCount(int operand_index);
-  // Returns the index immediate for bytecode operand |operand_index| in the
-  // current bytecode.
-  Node* BytecodeOperandIdx(int operand_index);
-  // Returns the Imm8 immediate for bytecode operand |operand_index| in the
-  // current bytecode.
-  Node* BytecodeOperandImm(int operand_index);
-  // Returns the register index for bytecode operand |operand_index| in the
-  // current bytecode.
-  Node* BytecodeOperandReg(int operand_index);
-
-  // Accumulator.
-  Node* GetAccumulator();
-  void SetAccumulator(Node* value);
-
-  // Context.
-  Node* GetContext();
-  void SetContext(Node* value);
-
-  // Loads from and stores to the interpreter register file.
-  Node* LoadRegister(int offset);
-  Node* LoadRegister(interpreter::Register reg);
-  Node* LoadRegister(Node* reg_index);
-  Node* StoreRegister(Node* value, int offset);
-  Node* StoreRegister(Node* value, interpreter::Register reg);
-  Node* StoreRegister(Node* value, Node* reg_index);
-
-  // Returns the next consecutive register.
-  Node* NextRegister(Node* reg_index);
-
-  // Returns the location in memory of the register |reg_index| in the
-  // interpreter register file.
-  Node* RegisterLocation(Node* reg_index);
-
-  // Constants.
-  Node* Int32Constant(int value);
-  Node* IntPtrConstant(intptr_t value);
-  Node* NumberConstant(double value);
-  Node* HeapConstant(Handle<HeapObject> object);
-  Node* BooleanConstant(bool value);
-
-  // Tag and untag Smi values.
-  Node* SmiTag(Node* value);
-  Node* SmiUntag(Node* value);
-
-  // Basic arithmetic operations.
-  Node* IntPtrAdd(Node* a, Node* b);
-  Node* IntPtrSub(Node* a, Node* b);
-  Node* Int32Sub(Node* a, Node* b);
-  Node* WordShl(Node* value, int shift);
-
-  // Load constant at |index| in the constant pool.
-  Node* LoadConstantPoolEntry(Node* index);
-
-  // Load an element from a fixed array on the heap.
-  Node* LoadFixedArrayElement(Node* fixed_array, int index);
-
-  // Load a field from an object on the heap.
-  Node* LoadObjectField(Node* object, int offset);
-
-  // Load |slot_index| from |context|.
-  Node* LoadContextSlot(Node* context, int slot_index);
-  Node* LoadContextSlot(Node* context, Node* slot_index);
-  // Stores |value| into |slot_index| of |context|.
-  Node* StoreContextSlot(Node* context, Node* slot_index, Node* value);
-
-  // Load the TypeFeedbackVector for the current function.
-  Node* LoadTypeFeedbackVector();
-
-  // Project the output value at index |index|
-  Node* Projection(int index, Node* node);
-
-  // Call constructor |constructor| with |arg_count| arguments (not
-  // including receiver) and the first argument located at
-  // |first_arg|. The |new_target| is the same as the
-  // |constructor| for the new keyword, but differs for the super
-  // keyword.
-  Node* CallConstruct(Node* new_target, Node* constructor, Node* first_arg,
-                      Node* arg_count);
-
-  // Call JSFunction or Callable |function| with |arg_count|
-  // arguments (not including receiver) and the first argument
-  // located at |first_arg|.
-  Node* CallJS(Node* function, Node* first_arg, Node* arg_count);
-
-  // Call an IC code stub.
-  Node* CallIC(CallInterfaceDescriptor descriptor, Node* target, Node* arg1,
-               Node* arg2, Node* arg3);
-  Node* CallIC(CallInterfaceDescriptor descriptor, Node* target, Node* arg1,
-               Node* arg2, Node* arg3, Node* arg4);
-  Node* CallIC(CallInterfaceDescriptor descriptor, Node* target, Node* arg1,
-               Node* arg2, Node* arg3, Node* arg4, Node* arg5);
-
-  // Call runtime function.
-  Node* CallRuntime(Node* function_id, Node* first_arg, Node* arg_count,
-                    int return_size = 1);
-  Node* CallRuntime(Runtime::FunctionId function_id);
-  Node* CallRuntime(Runtime::FunctionId function_id, Node* arg1);
-  Node* CallRuntime(Runtime::FunctionId function_id, Node* arg1, Node* arg2);
-  Node* CallRuntime(Runtime::FunctionId function_id, Node* arg1, Node* arg2,
-                    Node* arg3);
-  Node* CallRuntime(Runtime::FunctionId function_id, Node* arg1, Node* arg2,
-                    Node* arg3, Node* arg4);
-
-  // Jump relative to the current bytecode by |jump_offset|.
-  void Jump(Node* jump_offset);
-
-  // Jump relative to the current bytecode by |jump_offset| if the
-  // |condition| is true. Helper function for JumpIfWordEqual and
-  // JumpIfWordNotEqual.
-  void JumpConditional(Node* condition, Node* jump_offset);
-
-  // Jump relative to the current bytecode by |jump_offset| if the
-  // word values |lhs| and |rhs| are equal.
-  void JumpIfWordEqual(Node* lhs, Node* rhs, Node* jump_offset);
-
-  // Jump relative to the current bytecode by |jump_offset| if the
-  // word values |lhs| and |rhs| are not equal.
-  void JumpIfWordNotEqual(Node* lhs, Node* rhs, Node* jump_offset);
-
-  // Perform a stack guard check.
-  void StackCheck();
-
-  // Returns from the function.
-  void Return();
-
-  // Dispatch to the bytecode.
-  void Dispatch();
-
-  // Abort with the given bailout reason.
-  void Abort(BailoutReason bailout_reason);
-
- protected:
-  static bool TargetSupportsUnalignedAccess();
-
-  // Protected helpers (for testing) which delegate to RawMachineAssembler.
-  CallDescriptor* call_descriptor() const;
-  Graph* graph();
-
- private:
-  // Returns a raw pointer to start of the register file on the stack.
-  Node* RegisterFileRawPointer();
-  // Returns a tagged pointer to the current function's BytecodeArray object.
-  Node* BytecodeArrayTaggedPointer();
-  // Returns the offset from the BytecodeArrayPointer of the current bytecode.
-  Node* BytecodeOffset();
-  // Returns a raw pointer to first entry in the interpreter dispatch table.
-  Node* DispatchTableRawPointer();
-
-  // Saves and restores interpreter bytecode offset to the interpreter stack
-  // frame when performing a call.
-  void CallPrologue();
-
-  // Traces the current bytecode by calling |function_id|.
-  void TraceBytecode(Runtime::FunctionId function_id);
-
-  // Returns the offset of register |index| relative to RegisterFilePointer().
-  Node* RegisterFrameOffset(Node* index);
-
-  Node* SmiShiftBitsConstant();
-  Node* BytecodeOperand(int operand_index);
-  Node* BytecodeOperandSignExtended(int operand_index);
-  Node* BytecodeOperandShort(int operand_index);
-  Node* BytecodeOperandShortSignExtended(int operand_index);
-
-  Node* CallN(CallDescriptor* descriptor, Node* code_target, Node** args);
-  Node* CallIC(CallInterfaceDescriptor descriptor, Node* target, Node** args);
-
-  // Returns BytecodeOffset() advanced by delta bytecodes. Note: this does not
-  // update BytecodeOffset() itself.
-  Node* Advance(int delta);
-  Node* Advance(Node* delta);
-
-  // Starts next instruction dispatch at |new_bytecode_offset|.
-  void DispatchTo(Node* new_bytecode_offset);
-
-  // Abort operations for debug code.
-  void AbortIfWordNotEqual(Node* lhs, Node* rhs, BailoutReason bailout_reason);
-
-  // Private helpers which delegate to RawMachineAssembler.
-  Isolate* isolate();
-  Zone* zone();
-
-  interpreter::Bytecode bytecode_;
-  base::SmartPointer<RawMachineAssembler> raw_assembler_;
-
-  Node* accumulator_;
-  Node* context_;
-
-  bool code_generated_;
-
-  DISALLOW_COPY_AND_ASSIGN(InterpreterAssembler);
-};
-
-}  // namespace compiler
-}  // namespace internal
-}  // namespace v8
-
-#endif  // V8_COMPILER_INTERPRETER_ASSEMBLER_H_