[Bug tree-optimization/66002] paq8p benchmark 50% slower than clang on sandybridge

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66002

--- Comment #2 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
clang without -vectorize-loops -vectorize-slp:
./paq8p -4 file1.in  54.82s user 0.08s system 100% cpu 54.891 total