Dear GCC Developer Team, I hope this message finds you well. I am preparing a talk on Lifetime Management and I am reaching out to you as the foremost experts on the subject. Specifically I would like to inquire about GCC's utilization of the C++ object lifecycle in applying optimizations.
The goal of my talk is to emphasize that it's undefined behavior to cast raw data to C++ objects and interact with them before their lifetimes have begun. I intend to dispel the common misconception of C++ as merely 'higher-level assembly.' I want to demonstrate how the high-level object model provides the compiler with the liberty to perform certain optimizations and simplifications. This becomes more important as compilers employ increasingly sophisticated optimizations, and I would love to get the word out about them. Your insights would undoubtedly add significant depth and precision to my discussion. If you could spare some time, I would like to understand: a. What are some notable optimizations that GCC can implement due to the well-defined nature of the C++ object lifecycle? b. Can you share specific instances where violation of object lifecycle rules may lead to unexpected behavior or faulty program execution, resulting from the assumptions made by the GCC compiler? c. Can you share specific instances where violation of object lifecycle rules may deprive GCC from performing optimizations? Your insights on these matters will not only significantly enrich my discussion, but also offer invaluable and otherwise unknown guidance to our community of developers. Moreover, your team and contributions will be duly acknowledged during the presentation. I understand how busy you must be, and I genuinely appreciate any time and consideration you can afford to this request. Hoping to hear from you soon, Isidoros Tsaousis-Seiras Github: https://github.com/isidorostsa
