[Bug tree-optimization/90377] [10 Regression] New -Wstringop-overflow with -O3 since r270852

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90377

--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
Created attachment 46319
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46319&action=edit
Unreduced test-case

Yes, I used creduce. I'm attaching unreduced test-case.