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Re: Arranging for -Os to imply -mpreferred-stack-boundary=2 on x86

To: Alexandre Oliva <aoliva at redhat dot com>
Subject: Re: Arranging for -Os to imply -mpreferred-stack-boundary=2 on x86
From: Richard Henderson <rth at redhat dot com>
Date: Wed, 24 Oct 2001 13:21:06 -0700
Cc: gcc-patches at gcc dot gnu dot org
References: <ork7xmbrxp.fsf@free.redhat.lsd.ic.unicamp.br> <20011024105649.C20132@redhat.com> <oru1wo4wwz.fsf@free.redhat.lsd.ic.unicamp.br>

On Wed, Oct 24, 2001 at 06:15:24PM -0200, Alexandre Oliva wrote:
> > I'd rather detect the required alignment of a function than use
> > an attribute.
> 
> This wouldn't work in case of separate compilation.

Separate compilation has zero to do with this.  A function either
has variables in its stack frame that require special alignment or
it doesn't.  If it does, then it can align the frame itself.

r~

References:
- Arranging for -Os to imply -mpreferred-stack-boundary=2 on x86
  - From: Alexandre Oliva
- Re: Arranging for -Os to imply -mpreferred-stack-boundary=2 on x86
  - From: Richard Henderson
- Re: Arranging for -Os to imply -mpreferred-stack-boundary=2 on x86
  - From: Alexandre Oliva

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