Refactored the recording of source position in the generated code. The code g...

src/assembler-arm.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 625 matching lines @@
 
 
   // Debugging
 
   // Record a comment relocation entry that can be used by a disassembler.
   // Use --debug_code to enable.
   void RecordComment(const char* msg);
 
   void RecordPosition(int pos);
   void RecordStatementPosition(int pos);
+  void WriteRecordedPositions();
 
   int pc_offset() const { return pc_ - buffer_; }
-  int last_position() const { return last_position_; }
-  bool last_position_is_statement() const {
-    return last_position_is_statement_;
-  }
-
-  // Temporary helper function. Used by codegen.cc.
-  int last_statement_position() const { return last_position_; }
+  int current_position() const { return current_position_; }
+  int current_statement_position() const { return current_position_; }
 
  protected:
   int buffer_space() const { return reloc_info_writer.pos() - pc_; }
 
   // Read/patch instructions
   Instr instr_at(byte* pc) { return *reinterpret_cast<Instr*>(pc); }
   void instr_at_put(byte* pc, Instr instr) {
     *reinterpret_cast<Instr*>(pc) = instr;
   }
   Instr instr_at(int pos) { return *reinterpret_cast<Instr*>(buffer_ + pos); }
@@ skipping 82 matching lines @@
   // If every instruction in a long sequence is accessing the pool, we need one
   // pending relocation entry per instruction.
   static const int kMaxNumPRInfo = kMaxDistBetweenPools/kInstrSize;
   RelocInfo prinfo_[kMaxNumPRInfo];  // the buffer of pending relocation info
   int num_prinfo_;  // number of pending reloc info entries in the buffer
 
   // The bound position, before this we cannot do instruction elimination.
   int last_bound_pos_;
 
   // source position information
-  int last_position_;
-  bool last_position_is_statement_;
+  int current_position_;
+  int current_statement_position_;
+  int written_position_;
+  int written_statement_position_;
 
   // Code emission
   inline void CheckBuffer();
   void GrowBuffer();
   inline void emit(Instr x);
 
   // Instruction generation
   void addrmod1(Instr instr, Register rn, Register rd, const Operand& x);
   void addrmod2(Instr instr, Register rd, const MemOperand& x);
   void addrmod3(Instr instr, Register rd, const MemOperand& x);
   void addrmod4(Instr instr, Register rn, RegList rl);
   void addrmod5(Instr instr, CRegister crd, const MemOperand& x);
 
   // Labels
   void print(Label* L);
   void bind_to(Label* L, int pos);
   void link_to(Label* L, Label* appendix);
   void next(Label* L);
 
   // Record reloc info for current pc_
   void RecordRelocInfo(RelocInfo::Mode rmode, intptr_t data = 0);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_ASSEMBLER_ARM_H_