[Bug target/90826] Weak symbol does not work reliably on windows

[yyc1992 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90826

--- Comment #1 from Yichao Yu <yyc1992 at gmail dot com> ---
Oh, forgot to mention that the first assembly was generated with -O3 and adding
`.weak f` to the generated file fixes the issue as well.