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From: "hubicka at ucw dot cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/109442] Dead local copy of std::vector not removed
 from function
Date: Tue, 14 May 2024 13:47:55 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109442

--- Comment #21 from Jan Hubicka <hubicka at ucw dot cz> ---
This patch attempts to add __builtin_operator_new/delete. So far they
are not optimized, which will need to be done by extra flag of BUILT_IN_
code.  also the decl.cc code can be refactored to be less of cut&paste
and I guess has_builtin hack to return proper value needs to be moved
to C++ FE.

However the immediate problem I run into is that libstdc++ testuiste
fails due to lack of std::nothrow overrides.  I wonder how to get that
working?=