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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/109942] Function template declared extern is implicitly
 instantiated on -O optimization level when return type is auto
Date: Tue, 23 May 2023 13:35:13 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109942

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
You can add [[gnu::noinline]] to the function template if you really want to
prevent  it from being inlined, but it won't prevent it being instantiated.=