Archives
Archives
| 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> |