[Bug tree-optimization/90269] loop distribution defeated by clobbers

[glisse at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90269

--- Comment #3 from Marc Glisse <glisse at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #2)
> Otherwise the patch looks sensible, mind to test/post it?

It bootstrapped and regtested fine, I'll send it later.