[Interpreter] Move jump processing to bytecode array writer.

src/interpreter/bytecode-pipeline.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_INTERPRETER_BYTECODE_PIPELINE_H_
 #define V8_INTERPRETER_BYTECODE_PIPELINE_H_
 
 #include "src/interpreter/bytecode-register-allocator.h"
 #include "src/interpreter/bytecodes.h"
 #include "src/zone-containers.h"
 
 namespace v8 {
 namespace internal {
 namespace interpreter {
 
+class BytecodeLabel;
 class BytecodeNode;
 class BytecodeSourceInfo;
 
 // Interface for bytecode pipeline stages.
 class BytecodePipelineStage {
  public:
   virtual ~BytecodePipelineStage() {}
 
   // Write bytecode node |node| into pipeline. The node is only valid
   // for the duration of the call. Callee's should clone it if
   // deferring Write() to the next stage.
   virtual void Write(BytecodeNode* node) = 0;
 
-  // Flush state for bytecode array offset calculation. Returns the
-  // current size of bytecode array.
-  virtual size_t FlushForOffset() = 0;
+  // Write jump bytecode node |node| which jumps to |label| into pipeline.
+  // The node and label are only valid for the duration of the call. This call
+  // implicitly ends the current basic block so should always write to the next
+  // stage.
+  virtual void WriteJump(BytecodeNode* node, BytecodeLabel* label) = 0;
 
-  // Flush state to terminate basic block.
-  virtual void FlushBasicBlock() = 0;
+  // Binds |label| to the current bytecode location. This call implicitly
+  // ends the current basic block and so any deferred bytecodes should be
+  // written to the next stage.
+  virtual void BindLabel(BytecodeLabel* label) = 0;
+
+  // Binds |label| to the location of |target|. This call implicitly
+  // ends the current basic block and so any deferred bytecodes should be
+  // written to the next stage.
+  virtual void BindLabel(const BytecodeLabel& target, BytecodeLabel* label) = 0;
+
+  // Flush the pipeline and generate a bytecode array.
+  virtual Handle<BytecodeArray> ToBytecodeArray(
+      int fixed_register_count, int parameter_count,
+      Handle<FixedArray> handler_table) = 0;
 };
 
 // Source code position information.
 class BytecodeSourceInfo final {
  public:
   static const int kUninitializedPosition = -1;
 
   BytecodeSourceInfo(int position = kUninitializedPosition,
                      bool is_statement = false)
       : source_position_(position), is_statement_(is_statement) {}
@@ skipping 96 matching lines @@
 };
 
 std::ostream& operator<<(std::ostream& os, const BytecodeSourceInfo& info);
 std::ostream& operator<<(std::ostream& os, const BytecodeNode& node);
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODE_PIPELINE_H_