[Bug tree-optimization/94130] [8/9/10 Regression] Unintended result with optimization option when assigning two structures, memset and 0

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94130

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

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

also works around the issue.  Odd.