Gentoo Archives: gentoo-performance

From: Paul Ingelbrant <pi@×××××.se>
To: gentoo-performance@l.g.o
Subject: Re: [gentoo-performance] gcc optimizations
Date: Wed, 30 Jun 2004 18:49:05
Message-Id: 1088621291.40e30aebcdab9@webmail.otimo.se
In Reply to: Re: [gentoo-performance] gcc optimizations by Andrea Pretto
Quoting Andrea Pretto <prettz_it@×××××.it>:

> The flag -mmmx ( like -msse -m3dnow etc...) activate > some extensions for C language. > > See this: >
http://gcc.gnu.org/onlinedocs/gcc-3.3.3/gcc/X86-Built-in-Functions.html#X86%20Built-in%20Functions
> > So, those flag activate these built-in functions.
I see. But what's the matter with the cmov instruction? Should be reasonably "simple" for gcc to use it automatically... -- gentoo-performance@g.o mailing list

Replies

Subject Author
Re: [gentoo-performance] gcc optimizations Andrea Pretto <prettz_it@×××××.it>
Re: [gentoo-performance] gcc optimizations "Beau V.C. Bellamy" <beau@×××××××××××××××××.net>