Trying to skip basic JIT compilation of certain methods that the JIT compiled into some of the ISA instructions not belonging to the set understood by the host processor hardly makes sense.

尝试忽略对某些方法的基本JIT编译，因为那样编译得到的一些IS A指令不属于主机处理器能够理解的集合，没有什么意义。

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Moreover, more methods can be AOT compiled than a JIT compiler might decide to compile, which can also result in better performance with AOT compilation than JIT compilation.

此外，AOT能够比JIT编译器编译更多的方法，因此aot编译也能比JIT编译产生更好的性能。

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If runtime compiler (JIT) is supported, the VM needs to do JIT related initialization, including initializing the compilation policy, compiler back end, code cache, etc.

如果支持运行时编译，CVM需要做JIT的相关初始化，包括初始化编辑策略，编译器后端，代码缓存等等。

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