[Bug tree-optimization/122664] Using a large fake length for a buffer enables vectorizations

[nicula at nicula dot xyz via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122664

--- Comment #3 from Ionuț Nicula <nicula at nicula dot xyz> ---
Very cool! Didn't know this was a work in progress, I just happened to stumble
upon this behavior today while looking at some vectorizations. :)