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

Jamie Lokier (lkd@tantalophile.demon.co.uk)
Tue, 15 Dec 1998 01:19:13 +0000

On Mon, Dec 14, 1998 at 04:34:48PM +0100, Philipp Rumpf wrote:
> 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.

That doesn't mean the compiler won't use them in future. Compilers get
cleverer all the time.

One day, you can bet they will use every instruction that's described to
them if they're worth using.

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

You say that now...

-- Jamie

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