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 |
1 | Quoting Andrea Pretto <prettz_it@×××××.it>: |
2 | |
3 | > The flag -mmmx ( like -msse -m3dnow etc...) activate |
4 | > some extensions for C language. |
5 | > |
6 | > See this: |
7 | > |
8 | http://gcc.gnu.org/onlinedocs/gcc-3.3.3/gcc/X86-Built-in-Functions.html#X86%20Built-in%20Functions |
9 | > |
10 | > So, those flag activate these built-in functions. |
11 | |
12 | I see. |
13 | |
14 | But what's the matter with the cmov instruction? Should be reasonably "simple" |
15 | for gcc to use it automatically... |
16 | |
17 | -- |
18 | gentoo-performance@g.o mailing list |
Subject | Author |
---|---|
Re: [gentoo-performance] gcc optimizations | "Beau V.C. Bellamy" <beau@×××××××××××××××××.net> |
Re: [gentoo-performance] gcc optimizations | Andrea Pretto <prettz_it@×××××.it> |