On May 7, 2014, at 1:52 PM, Richard Sandiford <rdsandif...@googlemail.com> wrote: > > I've locally replaced all for_each_rtx calls in the generic code with > these iterators and they make things reproducably faster. The speed-up > on full --enable-checking=release ./cc1 and ./cc1plus times is only about 1%, > but maybe that's enough to justify the churn.
100 1% fixes would make the compiler 100% faster. :-) I think 1% is actually a really good improvement. If you have times for -O0, that would be interesting to see what they are.