lichray wrote: > > We used this extension to improve virtual function calling performance, > > there are simple and small virtual functions which are frequently called > > and can not be eliminated and it is in a delegation thus compiler can not > > optimize. [...] > > Can `declcall` (https://wg21.link/p2825) be used for this? It is on track for > C++26.
Not according to the design as of R5, because the operand of `declcall` is an unevaluated operand, hence it will not walk into `this` value to find the entry in the actual vtable. Devirtualized pointer in p2825r5 can only be obtained when _qualified-id_ is involved. https://github.com/llvm/llvm-project/pull/135649 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
