Date: Thu, 6 Dec 2007 10:22:39 +0300 From: Ruslan Ermilov <ru@freebsd.org> To: obrien@freebsd.org Cc: Boris Samorodov <bsam@ipt.ru>, Jan Lentfer <Jan.Lentfer@web.de>, freebsd-current@freebsd.org Subject: Re: Problems Building 7.0-Beta3 with -Os Message-ID: <20071206072239.GA81748@team.vega.ru> In-Reply-To: <20071205231628.GA15765@dragon.NUXI.org> References: <4756BAD3.4060905@web.de> <95938867@bb.ipt.ru> <20071205231628.GA15765@dragon.NUXI.org>
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On Wed, Dec 05, 2007 at 03:16:28PM -0800, David O'Brien wrote: > [...] -Os is a collection of > optimizations that is between -O1 and -O2. That is -Os includes > everything that -O1 does, and -O2 includes everything that -Os does. > In otherwords: -O1 < -Os < -O2 (properly) > I read it differently. From the manpage: : -Os Optimize for size. -Os enables all -O2 optimizations that do not : typically increase code size. It also performs further optimiza- : tions designed to reduce code size. It says that -Os is a subset of -O2 optimizations plus some extra optimizations. Reading further in a manpage, there's only one, -mspace. Cheers, -- Ruslan Ermilov ru@FreeBSD.org FreeBSD committer
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