MIPS: Critical fix for label binding in RegExp engine when trampoline is emitted.

src/mips/assembler-mips.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 924 matching lines @@
   static bool IsLw(Instr instr);
   static int16_t GetLwOffset(Instr instr);
   static Instr SetLwOffset(Instr instr, int16_t offset);
 
   static bool IsSw(Instr instr);
   static Instr SetSwOffset(Instr instr, int16_t offset);
   static bool IsAddImmediate(Instr instr);
   static Instr SetAddImmediateOffset(Instr instr, int16_t offset);
 
   static bool IsAndImmediate(Instr instr);
+  static bool IsEmittedConstant(Instr instr);
 
   void CheckTrampolinePool();
 
  protected:
   // Relocation for a type-recording IC has the AST id added to it.  This
   // member variable is a way to pass the information from the call site to
   // the relocation info.
   TypeFeedbackId recorded_ast_id_;
 
   int32_t buffer_space() const { return reloc_info_writer.pos() - pc_; }
@@ skipping 253 matching lines @@
 class EnsureSpace BASE_EMBEDDED {
  public:
   explicit EnsureSpace(Assembler* assembler) {
     assembler->CheckBuffer();
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_ASSEMBLER_MIPS_H_