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RE: x86 Linux stack alignment requirement
- From: "Menezes, Evandro" <evandro dot menezes at amd dot com>
- To: "H. J. Lu" <hjl at lucon dot org>, gcc at gcc dot gnu dot org
- Date: Wed, 7 Jun 2006 16:08:14 -0500
- Subject: RE: x86 Linux stack alignment requirement
HJ,
> We have several choices for stack alignment requirement
>
> 1. Leave it unchanged. Gcc can do
> a. Nothing. Let the program crash.
> b. Align stack to 16byte if XMM registers are used locally and
> aren't passed down as function arguments.
Why not so if the XMM registers are passed down as arguments?
Thanks,
--
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Evandro Menezes AMD Austin, TX