[Bug target/94364] 505.mcf_r is 8% faster when compiled with -mprefer-vector-width=128

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94364

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Huh, looks like this is the (patched by us) memory copying done in spec_qsort?
I wonder if you can re-measure with our patching undone but then with
-fno-strict-aliasing (though I think that only was required with LTO).

How large are the objects sorted in mcf?