http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58575
Bug ID: 58575 Summary: gcc should compile firefox code faster. Product: gcc Version: unknown Status: UNCONFIRMED Severity: enhancement Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: tsaunders at mozilla dot com CC: hubicka at ucw dot cz Its ceretainly possible given https://blog.mozilla.org/nnethercote/2013/09/12/bleg-for-a-new-machine-2/ (I'm not sure what versions njn is using but probably doesn't matter too much). I rofiled build a build of content/ in the firefox tree for a --enable-optimize --disable-debug build you can see the data I gathered at http://people.mozilla.org/~tsaunders/gcc-perf.data . The two things that came up high in profiles were C++ parsing stuff and memory allocation. I suppose there isn't too much to be done about the memory allocation issue in the short term, but I wonder if there's changes to the parser that would help at least some.