[Bug rtl-optimization/57281] [4.9 Regression] x86_64-linux loop fails to terminate at -O3 -m32

[ebotcazou at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57281

--- Comment #7 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Which means that split has to do that?

Presumably, yes.  peephole2 already does it.