[Bug tree-optimization/116765] gcc generate wrong code with -O3 -march=skylake

[xiaohuba2021 at 163 dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116765

--- Comment #1 from xiaohuba2021 <xiaohuba2021 at 163 dot com> ---
godbolt link: https://godbolt.org/z/4vTjcdhv5