This is the mail archive of the
mailing list for the GCC project.
Re: config.sub pentium2 and pentiumii aliases (fwd)
- To: Mo McKinlay <mmckinlay at gnu dot org>
- Subject: Re: config.sub pentium2 and pentiumii aliases (fwd)
- From: Ben Elliston <bje at cygnus dot com>
- Date: Thu, 9 Nov 2000 16:28:21 +1100 (EST)
- Cc: Torbjorn Granlund <tege at swox dot com>, <gcc at gcc dot gnu dot org>,<user42 at zip dot com dot au>
> Some packages might want to make a distinction between exact CPU
> types. GMP is one such package, where there has a very significant
> speed advantage,
tbh, I don't think it's config.guess/config.sub's job to figure this
out - I think there should be specific autoconf tests for specific CPU
type. Splitting the ix86 family of chips up for generic configury
always seemed to be a bizarre idea, as the majority applications treat
i86 as a single type of CPU.
Well, that said, this is true for the majority of the applications. It
probably doesn't need to be said that there are applications out there that
*do* care (notably, GCC).
I believe that what is required is a carefully selected middle ground:
sufficient granularity to be of use to most applications -- and to allow
clone x86 CPUs to be grouped under, say, i686, and for anyone else really
caring that much to perform their own specific tests as part of the
So my inclination is to decline on the suggestion of names like
"pentiumpro". If Mo's correct in saying that they are currently
misclassified, then I'll fix it.