Re: [PATCH] Support new egcs/pgcc -mpentium(pro) options

Philipp Rumpf (prumpf@jcsbs.lanobis.de)
Mon, 14 Dec 1998 16:34:48 +0100

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On Mon, Dec 14, 1998 at 11:11:51AM +0100, Junichi Saito wrote:
> this option dosen't make sense for pentium because there are no
> architecture specific instrunctions available for it (but not for
> pentiumpro). So the valide option for pentium is -mpentium.

The only general-purpose instructions the Pentium introduced are
compare and exchange instructions. AFAIK, those are not generated
by any gcc-like compiler in the moment.

So, there should be no difference between '-march=486 -mcpu=pentium'
and '-march=pentium'.

Philipp Rumpf

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