Date: Thu, 23 Sep 1999 11:17:52 -0500 From: Dan Nelson <dnelson@emsphone.com> To: bsd@picard.mandrakesoft.de Cc: The Hermit Hacker <scrappy@hub.org>, freebsd-current@FreeBSD.ORG Subject: Re: gcc optimizer in -current system ... Message-ID: <19990923111752.B57930@dan.emsphone.com> In-Reply-To: <Pine.LNX.4.10.9909231320430.2703-100000@picard.mandrakesoft.de> References: <Pine.BSF.4.10.9909230759130.4590-100000@thelab.hub.org> <Pine.LNX.4.10.9909231320430.2703-100000@picard.mandrakesoft.de>
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In the last episode (Sep 23), bsd@picard.mandrakesoft.de said: > On Thu, 23 Sep 1999, The Hermit Hacker wrote: > > just curious, but what is the max setting that can be used to > > compile the kernel? > > Works rather nicely here with > > -O6 -mpentiumpro -march=pentiumpro -pipe -s -fexpensive-optimizations > -ffast-math -O6 is too much; -O3 is the highest level tested for by egcs. -fexpensive-optimizations is redundant because -O2 turns it on. See /usr/src/contrib/egcs/gcc/toplev.c, starting at line ~4250, to see what the different -O levels actually do. -- Dan Nelson dnelson@emsphone.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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