[Bug c/86929] `-fstack-protector` results in wrong code

[lh_mouse at 126 dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86929

--- Comment #2 from Liu Hao <lh_mouse at 126 dot com> ---
Oh didn't know it happens on macOS too.  I didn't find the duplicate because I
searched for 'mingw' only.