Date: Sat, 7 Jun 1997 00:35:04 +0100 (MET DST) From: Matthias Buelow <token@wicx50.informatik.uni-wuerzburg.de> To: bde@zeta.org.au (Bruce Evans) Cc: freebsd-hackers@freebsd.org Subject: Re: gcc -m486, gcc -O2 Message-ID: <9706062235.AA15496@wicx01.informatik.uni-wuerzburg.de> In-Reply-To: <199706062148.HAA16814@godzilla.zeta.org.au> from "Bruce Evans" at Jun 7, 97 07:48:47 am
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> >Is there any reason -O2 would not be a good idea for kernel/make > >world in make.conf? I notice that the suggested use is -O2 for > >everything else and -O for the kernel. > > -O2 is sometimes a pessimization. `-O2 -m486' was suggested in 1994. > It is wronger now. Yes, but in 1994 the kernel was compiled with gcc 2.6.3 or older. Now fbsd uses 2.7.2.1 - is the situation still the same with the newer compiler?
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