Dynamically determine optimal instance size....

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 577 matching lines @@
   void cmpb_al(const Operand& op);
   void cmpw_ax(const Operand& op);
   void cmpw(const Operand& op, Immediate imm16);
   void cmp(Register reg, int32_t imm32);
   void cmp(Register reg, Handle<Object> handle);
   void cmp(Register reg, const Operand& op);
   void cmp(const Operand& op, const Immediate& imm);
   void cmp(const Operand& op, Handle<Object> handle);
 
   void dec_b(Register dst);
+  void dec_b(const Operand& dst);

[Vitaly Repeshko, 2010/09/22 14:40:25]

Does the disassembler support this already? If not, please extend it (and also
test-disasm-ia32).

[Vladislav Kaznacheev, 2010/09/23 08:38:16]

Will add support in a separate patch.

On 2010/09/22 14:40:25, Vitaly wrote:

 
   void dec(Register dst);
   void dec(const Operand& dst);
 
   void cdq();
 
   void idiv(Register src);
 
   // Signed multiply instructions.
   void imul(Register src);                               // edx:eax = eax * src.
@@ skipping 369 matching lines @@
  private:
   Assembler* assembler_;
 #ifdef DEBUG
   int space_before_;
 #endif
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_ASSEMBLER_IA32_H_