[Bug target/54412] minimal 32-byte stack alignment with -mavx on 64-bit Windows

[yyc1992 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54412

--- Comment #24 from Yichao Yu <yyc1992 at gmail dot com> ---
Oh, and the test case above was compiled with -O3 (and -g -Wall -Wextra).