Date: Fri, 2 Aug 2002 04:20:53 +1000 (EST) From: Bruce Evans <bde@zeta.org.au> To: "David O'Brien" <obrien@FreeBSD.ORG> Cc: John Baldwin <jhb@FreeBSD.ORG>, Chris Knight <chris@aims.com.au>, <re@FreeBSD.ORG>, <freebsd-current@FreeBSD.ORG> Subject: Re: Comments on Release Building for -current Message-ID: <20020802041414.A3616-100000@gamplex.bde.org> In-Reply-To: <20020801173513.GC82778@dragon.nuxi.com>
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On Thu, 1 Aug 2002, David O'Brien wrote: > On Fri, Aug 02, 2002 at 02:57:44AM +1000, Bruce Evans wrote: > > I'm surprised -Os [-falign...] isn't already the default for crunches. > > -Os is -O2 except for those optimizations which bloat. We don't trust > -O2 and thus maybe should not -Os. Hopefully we have found all our bad > in-line ASM and -O2 will work for FreeBSD now. -Os is actually -O2 except for those optimizations which bloat but plus some more optimizations which reduce bloat. The main additional one is -falign* to minimal values, so we wouldn't need both -Os -falign. I wouldn't trust -O2 for releases without lots of testing in -current (and not updating the compiler after testing). Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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