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Re: Inline ASM and stack/base pointer

From: Daniel Mierswa <impulze at impulze dot org>
To: gcc-help at gcc dot gnu dot org
Date: Thu, 09 Jun 2011 21:54:46 +0000
Subject: Re: Inline ASM and stack/base pointer
References: <4DF0F706.5050803@impulze.org> <mcrr5723nfg.fsf@coign.corp.google.com>

On 09.06.2011 17:49, Ian Lance Taylor wrote:
> Add "%esp" to your clobber list.  That should force the compiler to pass
> any stack variables using an offset from %ebp.

Ok it does seem to have an effect after all, as long as I don't compile
it with -O2, as soon as -O2 is passed, it uses esp instead of ebp and
does not even build up a base pointer at all in the generated assembly.

-- 
Mierswa, Daniel

If you still don't like it, that's ok: that's why I'm boss. I simply
know better than you do.
               --- Linus Torvalds, comp.os.linux.advocacy, 1996/07/22

References:
- Inline ASM and stack/base pointer
  - From: Daniel Mierswa
- Re: Inline ASM and stack/base pointer
  - From: Ian Lance Taylor

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