| 摘要 |
PROBLEM TO BE SOLVED: To produce a native code in an execution time compiler from a bytecode group presented on a compiler and to provide a system which optimizes it. SOLUTION: A compiler 208 accesses information 210 showing the possibility that a class is a specified type when an active program accesses. The compiler selects one code generation method among plural code generation methods by using the accessed information. A code generator produces an optimized native code in accordance with the selected code generation method and stores the optimized native code in a code cache 212 for reuse.
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