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| From: | Branko Badrljica <brankob@××××××××××.com> | ||
|---|---|---|---|
| To: | gentoo-amd64@l.g.o | ||
| Subject: | Re: [gentoo-amd64] CFLAGS question from a AMD64 newbie | ||
| Date: | Wed, 10 Dec 2008 06:07:31 | ||
| Message-Id: | 493F6922.60005@avtomatika.com | ||
| In Reply to: | Re: [gentoo-amd64] CFLAGS question from a AMD64 newbie by "Sami Näätänen" |
||
| 1 | Sami Näätänen wrote: |
| 2 | |
| 3 | <SNIP about -ftree-vectorize> |
| 4 | > For example: |
| 5 | > float a[4]; |
| 6 | > float b[4]; |
| 7 | > |
| 8 | <SNIPped the rest of example > |
| 9 | |
| 10 | |
| 11 | Nice one. And probably with stellar speedup, since bunch of code gets |
| 12 | replaced with one or two SSE instructions. |
| 13 | But how relevant is it in real life examples ? |