Date: Wed, 01 Dec 1999 02:06:07 +0300 From: Dmitrij Tejblum <tejblum@arc.hq.cti.ru> To: Bruce Evans <bde@zeta.org.au> Cc: current@FreeBSD.ORG Subject: Re: kernel: -mpreferred-stack-boundary=2 ?? Message-ID: <199911302306.CAA02391@tejblum.pp.ru> In-Reply-To: Your message of "Wed, 01 Dec 1999 06:13:13 %2B1100." <Pine.BSF.4.10.9912010603070.15878-100000@alphplex.bde.org>
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Bruce Evans wrote: > I would have > expected the most generally efficient way to align doubles and the new PIII > obkects to be aligning the stack only in functions that have such objects > on the stack. This requires at most one extra instruction: > > andl $~0xf,$esp 16-byte alignment I think, it's not that simple in the usual case when the object is accessed via (%ebp-<someconstant>). Dima To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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