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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/111050] [11/12/13/14 Regression] ABI break in
 _Hash_node_value_base since GCC 11
Date: Mon, 11 Sep 2023 11:52:39 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111050

--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Fran=C3=A7ois Dumont from comment #1)
> It seems to be a limited issue as you need a non-optimized build.

That's not a safe assumption. Inlining decisions can change across builds a=
nd
across architectures, and it's not safe to assume the affected functions wi=
ll
always be inlined, e.g. in the presence of explicit instantiation definitio=
ns.

> The only
> impacted member is the _M_next() which is a simple static_cast, I'm very
> surprised that it's not always inlined even if non-optimized.

No functions are inlined for non-optimized builds, unless forced with
always_inline.=