Add X87 implementations for Integer32ToDouble, DoubleToI, DoubleToSmi

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 911 matching lines @@
 
   void fld1();
   void fldz();
   void fldpi();
   void fldln2();
 
   void fld_s(const Operand& adr);
   void fld_d(const Operand& adr);
 
   void fstp_s(const Operand& adr);
+  void fst_s(const Operand& adr);
   void fstp_d(const Operand& adr);
   void fst_d(const Operand& adr);
 
   void fild_s(const Operand& adr);
   void fild_d(const Operand& adr);
 
   void fist_s(const Operand& adr);
 
   void fistp_s(const Operand& adr);
   void fistp_d(const Operand& adr);
@@ skipping 288 matching lines @@
  private:
   Assembler* assembler_;
 #ifdef DEBUG
   int space_before_;
 #endif
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_ASSEMBLER_IA32_H_