src/hotspot/cpu/x86/macroAssembler_x86.cpp

*** 6274,6283 ****
--- 6274,6285 ----
  #endif // _LP64
  }
  
  // ((OopHandle)result).resolve();
  void MacroAssembler::resolve_oop_handle(Register result, Register tmp) {
+   assert_different_registers(result, tmp);
+ 
    // Only 64 bit platforms support GCs that require a tmp register
    // Only IN_HEAP loads require a thread_tmp register
    // OopHandle::resolve is an indirection like jobject.
    access_load_at(T_OBJECT, IN_ROOT | IN_CONCURRENT_ROOT,
                   result, Address(result, 0), tmp, /*tmp_thread*/noreg);