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

[jakub at gcc dot gnu.org]

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

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
And the b.d = 0; store isn't needed either.