From owner-freebsd-current Mon Apr 5 22:54:34 1999 Delivered-To: freebsd-current@freebsd.org Received: from apollo.backplane.com (apollo.backplane.com [209.157.86.2]) by hub.freebsd.org (Postfix) with ESMTP id 8E95D14C12 for ; Mon, 5 Apr 1999 22:54:30 -0700 (PDT) (envelope-from dillon@apollo.backplane.com) Received: (from dillon@localhost) by apollo.backplane.com (8.9.3/8.9.1) id WAA04470; Mon, 5 Apr 1999 22:52:32 -0700 (PDT) (envelope-from dillon) Date: Mon, 5 Apr 1999 22:52:32 -0700 (PDT) From: Matthew Dillon Message-Id: <199904060552.WAA04470@apollo.backplane.com> To: Alex Zepeda Cc: current@FreeBSD.ORG Subject: Re: EGCS optimizations References: Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG :On Mon, 5 Apr 1999, Matthew Dillon wrote: : :> There is nothing beyond -O2. Well, there's -O3, which tries to :> inline static functions, but that typically isn't beneficial because :> it really bloats up the code and subroutine calls on intel cpus are :> very fast. : :Really? : :The pgcc web page (goof.com/pcg) lead me to believe that there were a few :more optimizations turned on by -O5 && -O6.. : :- alex pgcc != egcs. PGcc is a patchset on top of egcs and I suppose they might have added additinoal -O options, but egcs itself does not go beyond -O3. The PGcc faq indicates that they are slowly folding their stuff into egcs. Hopefully they've fixed the bugs :-). I have not tried compiling a kernel under pgcc but now that FreeBSD has moved to EGCS, it may actually work! -Matt Matthew Dillon To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message