分析阶段被视作是执行优化和检测某种错误的机会。
The analysis phase was viewed as an opportunity to perform optimization and to detect certain kinds of errors.
当执行优化的动态编译器做出的假设已经过时时，就会发生这种情况。
This can happen when assumptions made by an optimizing dynamic compiler have become outdated.
编译器可以使用间接调用执行优化，如提升循环外虚方法地址的加载。
The compiler can perform optimizations with indirect calls such as hoisting the load of a virtual method address out of a loop.
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