[Bug bootstrap/60743] build/genautomata uses 700 MB memory for ARM

[bernd.edlinger at hotmail dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60743

--- Comment #2 from Bernd Edlinger <bernd.edlinger at hotmail dot de> ---
started with r208910 of gcc/config/arm/cortex-a53.md

as it looks like, this single check-in did almost double the memory usage!