对于某个程序被取消后的第一个调用，或对于某个方法调用，编译器会初始化这些专用寄存器的字段，将它们作为初始值。

For the first call to a program after a cancel of that program, or for a method invocation, the compiler initializes the fields of these special registers to their initial values.

youdao

更好的是，对于小型对象，J VM可以把分配工作完全优化掉，只把对象的字段放入寄存器。

Even better, for small objects, the JVM can optimize away the allocation entirely and simply hoist the object's fields into registers.

youdao

更好的是，对于小型对象，J VM可以把分配工作完全优化掉，只把对象的字段放入寄存器。

Even better, for small objects, the JVM can optimize away the allocation entirely and simply hoist the object's fields into registers.

youdao