[Bug target/80689] 128 loads generated for structure copying with gcc 7.1.0 and leads to STLF stalls in avx2 targets.

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80689

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
What does ICC do if you use int and/or short fields in st1?  Does it perform
struct copying member-wise?