[Bug target/101908] [12 regression] cray regression with -O2 -ftree-slp-vectorize compared to -O2

[lili.cui at intel dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101908

--- Comment #24 from cuilili <lili.cui at intel dot com> ---
(In reply to cuilili from comment #23)
> (In reply to Richard Biener from comment #17)
> > I do wonder though how CLX is fine with such access pattern ;)  (did you 
> > test
> > with just -O2?)
> 
Sorry, correct w/ and w/t order.

 Actually CLX also has STLF issues, there is 13.7% regression when comparing
 "gcc trunk + -O2" w/t and w/ "-fno-tree-vectorize"