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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/95769] Constant expression in inline function
 not optimized
Date: Fri, 19 Jun 2020 15:38:17 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95769

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
If you want to ensure a function is evaluated at compile time, it needs to =
be
either C++20 consteval, or you need to evaluate it in constant expression
context, e.g. constexpr auto x =3D expensive_function(10000);=