http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
--- Comment #141 from Markus Trippelsdorf <markus at trippelsdorf dot de> 2012-09-15 14:05:38 UTC --- After the new IonMonkey JIT went in (http://blog.mozilla.org/javascript/2012/09/12/ionmonkey-in-firefox-18/) peak memory use went up. It is now 6.8GB (gcc-4.7 roughly the same: 6.5GB). So we're approaching the point where a 8GB machine isn't enough to build Firefox with LTO...
