Linux-kernel mailing list archive 2000-04,: Re: Preventing gcc from aligning stack???

# Re: Preventing gcc from aligning stack???

H. Peter Anvin (hpa@transmeta.com)
Thu, 27 Jan 2000 09:32:01 -0800

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Tuukka Toivonen wrote:
>
> On 25 Jan 2000, H. Peter Anvin wrote:
>
> > The native fp format on IA32 is "long double" -- 80 bits (10 bytes).
>
> Yes, but this is not relevant here. The 10byte floating point is used in
> practice only internally to the FPU. Yes, you can read and store it but
> nobody does that, since it's so much slower than a normal float or double
> (on Pentium, atleast).
>

You have to if you're going to spill a register.

-hpa

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