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From: "max at duempel dot org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/96749] [coroutines] unexpected 'warning: statement has no
 effect [-Wunused-value]'
Date: Fri, 04 Dec 2020 14:13:28 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96749

Max Kellermann <max at duempel dot org> changed:

           What    |Removed                     |Added
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                 CC|                            |max at duempel dot org

--- Comment #2 from Max Kellermann <max at duempel dot org> ---
Created attachment 49681
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D49681&action=3Dedit
Another variant of the bug

I confirm this bug with "gcc version 10.2.0 (Debian 10.2.0-19)", and I have
found another variant of it; in my sample source, using a "struct" return t=
ype
triggers the warning, but built-in types do not.=