MIPS: replace RegExpCEntryStub with DirectCEntryStub.

src/mips/code-stubs-mips.h

 // Copyright 2011 the V8 project authors. 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.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 449 matching lines @@
   Register object_;
   Register value_;
   Register address_;
   RememberedSetAction remembered_set_action_;
   SaveFPRegsMode save_fp_regs_mode_;
   Label slow_;
   RegisterAllocation regs_;
 };
 
 
-// Enter C code from generated RegExp code in a way that allows
-// the C code to fix the return address in case of a GC.
-// Currently only needed on ARM and MIPS.
-class RegExpCEntryStub: public PlatformCodeStub {
- public:
-  RegExpCEntryStub() {}
-  virtual ~RegExpCEntryStub() {}
-  void Generate(MacroAssembler* masm);
-
- private:
-  Major MajorKey() { return RegExpCEntry; }
-  int MinorKey() { return 0; }
-
-  bool NeedsImmovableCode() { return true; }
-};
-
 // Trampoline stub to call into native code. To call safely into native code
 // in the presence of compacting GC (which can move code objects) we need to
 // keep the code which called into native pinned in the memory. Currently the
 // simplest approach is to generate such stub early enough so it can never be
 // moved by GC
 class DirectCEntryStub: public PlatformCodeStub {
  public:
   DirectCEntryStub() {}
   void Generate(MacroAssembler* masm);
   void GenerateCall(MacroAssembler* masm, Register target);
@@ skipping 52 matching lines @@
 
   class LookupModeBits: public BitField<LookupMode, 0, 1> {};
 
   LookupMode mode_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_MIPS_CODE_STUBS_ARM_H_