[Bug tree-optimization/89350] [9 Regression] Wrong -Wstringop-overflow= warning since r261518

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89350

--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> ---
Created attachment 45727
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45727&action=edit
original test-case