Gentoo Archives: gentoo-user

From: Walter Dnes <waltdnes@××××××××.org>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Re: -march=native is *EXTREMELY* conservative
Date: Sun, 18 Dec 2011 01:12:35
Message-Id: 20111218011054.GA2804@waltdnes.org
In Reply to: [gentoo-user] Re: -march=native is *EXTREMELY* conservative by Nikos Chantziaras
1 On Sat, Dec 17, 2011 at 11:58:36PM +0200, Nikos Chantziaras wrote
2
3 > The output lies. It's a known issue. Use this instead:
4 >
5 > echo | gcc -dM -E - -march=native
6 >
7 > You should see stuff like:
8 >
9 > #define __MMX__ 1
10 > #define __SSE3__ 1
11
12 The onboard GPU was initially incapable of handling 1080i video without
13 stuttering badly and dropping frames. After explicitly changing the
14 flags and rebuilding system+world+kernel, it displays 1080p videos
15 flawlessly. That's one big "co-incidence".
16
17 --
18 Walter Dnes <waltdnes@××××××××.org>

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Re: [gentoo-user] Re: -march=native is *EXTREMELY* conservative Walter Dnes <waltdnes@××××××××.org>