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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/94130] [8/9/10 Regression] Unintended result
 with optimization option when assigning two structures, memset and 0
Date: Wed, 11 Mar 2020 07:58:16 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94130

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Doing

    memset(&s_myvalue, 0, sizeof(s_myvalue));
    s_myreq.m_data =3D &s_myvalue;

also works around the issue.  Odd.=