Faster compilation speed

Daniel Egger degger@fhm.edu
Mon Aug 19 09:20:00 GMT 2002


Am Mon, 2002-08-19 um 14.15 schrieb Nick Ing-Simmons:

> Yet another speed/space trade-off - most architecures are going to take
> significantly longer to inc/dec a bitfield than they will doing 
> an int. 

However a few (after all the overhead is not really much) extra
instructions are nothing compared to a cachemiss or even vm measures.
And bitfields can help dramatically to shrink object size especially
for a pile of boolean states and alike.
 
-- 
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.7 (GNU/Linux)

iD8DBQA9YQzqchlzsq9KoIYRAir4AKCF/ipRTV6Z06GVoZyc5yOOn9HYBACeMdJS
1nI4Hh7+3NmwogSZ6MhXvSI=
=NssS
-----END PGP SIGNATURE-----


More information about the Gcc mailing list