*** old/src/cpu/x86/vm/nativeInst_x86.cpp	Thu Apr 24 15:53:02 2014
--- new/src/cpu/x86/vm/nativeInst_x86.cpp	Thu Apr 24 15:53:02 2014

*** 513,525 ****
--- 513,525 ----
    n_jump->wrote(0);
  
  }
  
  void NativePopReg::insert(address code_pos, Register reg) {
!   assert(reg->encoding() < 8, "no space for REX");
!   assert(reg.encoding() < 8, "no space for REX");
    assert(NativePopReg::instruction_size == sizeof(char), "right address unit for update");
!   *code_pos = (u_char)(instruction_code | reg->encoding());
!   *code_pos = (u_char)(instruction_code | reg.encoding());
    ICache::invalidate_range(code_pos, instruction_size);
  }
  
  
  void NativeIllegalInstruction::insert(address code_pos) {