Subject: Re: more about gcc 2.7.2
To: None <current-users@NetBSD.ORG>
From: Martin Cracauer <cracauer@wavehh.hanse.de>
List: current-users
Date: 12/07/1995 10:09:07
perry@piermont.COM (Perry E. Metzger) wrote:
>Robert Dobbs writes:
>>
>> 2.7.2 doesn't include any pentium specific optimizations
>> -m486 is still as good as it gets
>I thought that it did. Perhaps I'm thinking of 2.7.3?
2.7.2 has one option for pentiums.
[Quoting from info pages]
`-mno-align-double'
Control whether GNU CC aligns `double', `long double', and `long
long' variables on a two word boundary or a one word boundary.
Aligning `double' variables on a two word boundary will produce
code that runs somewhat faster on a `Pentium' at the expense of
more memory.
*Warning:* if you use the `-malign-double' switch, structures
containing the above types will be aligned differently than the
published application binary interface specifications for the 386.
Will check it out.
Martin
--
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Martin Cracauer <cracauer@wavehh.hanse.de> - BSD User Group Hamburg, Germany
"As far as I'm concerned, if something is so complicated that you can't ex-"
"plain it in 10 seconds, then it's probably not worth knowing anyway"- Calvin