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Devang Patel wrote:-
Do you have any estimate of compile-time speed impact of this patch? Even comparison for GCC (say, FSF TOT as of yesterday) build time with and without this patch will give us some estimate. We would like to avoid slowdown.
Actually, WTF, I think I'll do this, though like I said it's not really
a fair comparison. I'll report the results tomorrow to "make bootstrap"
GCC before and after the patch with --enable-languages=c and
--disable-checking; the latter setting will also magnify any slowdown.
This will give us bootstrap timing for two different set of sources. It is not strictly comparing Apple and Apple.
I'd do - Build gcc1 which does not have your patch - Build gcc2 which is gcc1 + your patch - Select appropriate GCC sources - Build it with gcc1 - Build same sources with gcc2
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