Use generated code to create sub strings

src/ia32/assembler-ia32.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 522 matching lines @@
 
   void movzx_b(Register dst, const Operand& src);
 
   void movzx_w(Register dst, const Operand& src);
 
   // Conditional moves
   void cmov(Condition cc, Register dst, int32_t imm32);
   void cmov(Condition cc, Register dst, Handle<Object> handle);
   void cmov(Condition cc, Register dst, const Operand& src);
 
+  // Repetitive moves.
+  void rep_movs();
+
   // Exchange two registers
   void xchg(Register dst, Register src);
 
   // Arithmetics
   void adc(Register dst, int32_t imm32);
   void adc(Register dst, const Operand& src);
 
   void add(Register dst, const Operand& src);
   void add(const Operand& dst, const Immediate& x);
 
@@ skipping 190 matching lines @@
   void cvtsi2sd(XMMRegister dst, const Operand& src);
 
   void addsd(XMMRegister dst, XMMRegister src);
   void subsd(XMMRegister dst, XMMRegister src);
   void mulsd(XMMRegister dst, XMMRegister src);
   void divsd(XMMRegister dst, XMMRegister src);
   void xorpd(XMMRegister dst, XMMRegister src);
 
   void comisd(XMMRegister dst, XMMRegister src);
 
+  void movdqa(XMMRegister dst, const Operand& src);
+  void movdqa(const Operand& dst, XMMRegister src);
+  void movdqu(XMMRegister dst, const Operand& src);
+  void movdqu(const Operand& dst, XMMRegister src);
+
   // Use either movsd or movlpd.
   void movdbl(XMMRegister dst, const Operand& src);
   void movdbl(const Operand& dst, XMMRegister src);
 
   // Debugging
   void Print();
 
   // Check the code size generated from label to here.
   int SizeOfCodeGeneratedSince(Label* l) { return pc_offset() - l->pos(); }
 
@@ skipping 133 matching lines @@
  private:
   Assembler* assembler_;
 #ifdef DEBUG
   int space_before_;
 #endif
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_ASSEMBLER_IA32_H_