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

[glisse at gcc dot gnu.org]

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

--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> ---
What kind of obfuscator did this go through?