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Re: The new mips gas breaks gcc 2.96

From: Thiemo Seufer <ica2_ts at csv dot ica dot uni-stuttgart dot de>
To: "Maciej W. Rozycki" <macro at ds2 dot pg dot gda dot pl>
Cc: "H. J. Lu" <hjl at lucon dot org>, Richard Sandiford <rsandifo at redhat dot com>,binutils at sources dot redhat dot com
Date: Thu, 1 Aug 2002 19:18:50 +0200
Subject: Re: The new mips gas breaks gcc 2.96
References: <20020801094810.A15118@lucon.org> <Pine.GSO.3.96.1020801184926.8256O-100000@delta.ds2.pg.gda.pl>

Maciej W. Rozycki wrote:
> On Thu, 1 Aug 2002, H. J. Lu wrote:
> 
> > > -mcpu was deprecated in the last release.  It's now been removed.
> > 
> > I guess I have to put it back for gcc 2.96 in my Linux binutils.
> 
>  Well, the real solution would be to update the specs for gcc 2.96 --
> s/-mcpu/-mtune/ should suffice.

ITYM s/-mcpu/-march/.

>  I'm actually surprised why the change happened at all -- the i386 uses
> "-mcpu" and "-march"; why does MIPS have to use "-mtune" and "-march"
> instead?  And why can't it keep "-mcpu" as an alias if "-mtune" is needed
> for some reason?  It doesn't cost much. 

Much confusion here. :-)

The documentation says -mcpu for i386 is the same as -mtune is now for
MIPS, while -march has similiar meaning on both. But the old -mcpu for
MIPS did select scheduling as well as the set of valid opcodes.


Thiemo

Follow-Ups:
- Re: The new mips gas breaks gcc 2.96
  - From: Maciej W. Rozycki

References:
- Re: The new mips gas breaks gcc 2.96
  - From: H. J. Lu
- Re: The new mips gas breaks gcc 2.96
  - From: Maciej W. Rozycki

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