en Copyright 2015 Java http://172.16.0.5:8080/history/llvm-project-15.0.7/clang/test/SemaCXX/coroutine-no-move-ctor.cpp#d30ca5e2 [C++20] [Coroutines] Implement return value optimization for get_return_objectThis patch tries to implement RVO for coroutine's return object got fromget_return_object.From [dcl.fct.def.coroutine]/p7 we could know that the return value ofget_return_object is either a reference or a prvalue. So it makes senseto do copy elision for the return value. The return object should beconstructed directly into the storage where they would otherwise becopied/moved to.Test Plan: folly, check-allReviewed By: junparserDifferential revision: https://reviews.llvm.org/D117087 List of files: /llvm-project-15.0.7/clang/test/SemaCXX/coroutine-no-move-ctor.cpp Mon, 10 Jan 2022 11:18:33 +0000 Chuanqi Xu <yedeng.yd@linux.alibaba.com>