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# Type Feedback vs. Concrete Type Inference: A Comparison of Optimization Techniques for Object-Oriented Languages

@inproceedings{Agesen1995TypeFV, title={Type Feedback vs. Concrete Type Inference: A Comparison of Optimization Techniques for Object-Oriented Languages}, author={Ole Agesen and Urs H{\"o}lzle}, booktitle={OOPSLA}, year={1995} }

- Published 1995 in OOPSLA
DOI:10.1145/217838.217847

Two promising optimization techniques for object-oriented languages are type feedback (profile-based receiver class prediction) and concrete type inference (static analysis). We directly compare the two techniques, evaluating their effectiveness on a suite of 23 SELF programs while keeping other factors constant.Our results show that both systems inline over 95% of all sends and deliver similar overall performance with one exception: SELF's automatic coercion of machine integers to arbitrary… CONTINUE READING

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