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Re: [RFA]: Merge stack alignment branch

On Fri, Apr 4, 2008 at 5:35 AM, H.J. Lu <hjl.tools@gmail.com> wrote:
>  Does your scheme work with reload? To support AVX, we need to
>  align stack to 32byte whenever AVX register is accessed on stack.
>  That will be a very common case when -mavx is used.  But we want
>  to keep preferred stack boundary, which defines incoming stack
>  boundary, as 16byte for binary compatibility.

Yes it works with reload.  The variable gets reloaded to a stack slot
which is aligned correctly.  The stack on x86 is still aligned to the
word boundary but the variables get aligned to the correct alignment.

There is still a bug with respect of VLA's not getting the correct
alignment.  This happens with your scheme also.

Thanks,
Andrew Pinski
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