[Bug target/126741] x86_64-w64-mingw32: 512-bit by-value arguments and return values are stored to caller stack temporaries with aligned vmovapd, but the temporaries are only 16-byte aligned — runtime crash (0xC0000005)

[gdwolfman at icloud dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126741

--- Comment #1 from Gary Wolfman <gdwolfman at icloud dot com> ---
Created attachment 65280
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=65280&action=edit
Highway-style struct-wrapper variant, identical behavior