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Re: Use Bohem's GC for compiler proper in 4.1?


Zack Weinberg wrote:

Last year CodeSourcery had a contract to speed up the C++ front end at
-O0, and we found that small linear reductions in memory usage
corresponded directly to small linear reductions in time usage, at
about a 2:1 ratio (so 1% less memory -> 0.5% less time).  That
wouldn't be worth bothering with except that there are *lots* of
places where such reductions are available.  We eventually got
something like a 40% overall speedup just from this.  (Sorry, I
haven't got exact numbers.)

Right I am aware of that work, but we are talking now, so the question is do similar opportunities still exist?



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