On Thu, 18 Jul 2024 20:07:14 GMT, Vladimir Ivanov <vliva...@openjdk.org> wrote:
>> I think not. It'd complicate C++ runtime for no useful reason. > > On the other hand, if `-XX:-UseSecondarySupersTable` is intended solely for > diagnostic purposes, then handling all possible execution modes uniformly is > preferable, since it gives more confidence when troubleshooting seemingly > related failures. Alternatively, `Klass::is_subtype_of()` can unconditionally perform linear search over secondary_supers array. Even though I very much like to see table lookup written in C++ (accompanying heavily optimized platform-specific MacroAssembler variants), it would make C++ runtime even simpler. ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/19989#discussion_r1683423052
