[Bug tree-optimization/60042] vectorizer still does too many dependence tests for himeno:jacobi

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60042

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Bah, and with -fipa-pta -Ofast -fwhole-program we now _do_ see that there
isn't any aliasing but PRE messes up the loop and creates loop carried
dependencies ... :/