Gentoo Archives: gentoo-user

From: Beau Henderson <beau@××××××××××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] -march=native
Date: Wed, 30 Jun 2010 01:09:47
Message-Id: 4C2A9936.6090505@thehenderson.com
In Reply to: Re: [gentoo-user] -march=native by Paul Hartman
1 On 06/30/10 08:07, Paul Hartman wrote:
2 > 2010/6/29 Hasan SAHIN<hasan.sahin@×××.com>:
3 >> Hello all,
4 >>
5 >> I am using Athlon64 X2 processor with the
6 >> CFLAGS="-march=k8 -O2 -pipe -fomit-frame-pointer" option.
7 >>
8 >> Can I use the -march=native option instead of that?
9 >
10 > You can see which options -march=native would use by running this command:
11 >
12 > gcc -Q --help=target -march=native
13 >
14 > (thanks to Daniel Iliev for the tip)
15 >
16
17 Perhaps I'm missing something but running the above gives me the impression that -march=native
18 actually only configures the bare minimal install. I'm not seeing -mmmx or -msse3 enabled on my
19 k8-sse3 for instance ( amongst much else ).

Replies

Subject Author
Re: [gentoo-user] -march=native Albert Hopkins <marduk@×××××××××××.org>
Re: [gentoo-user] -march=native Paul Hartman <paul.hartman+gentoo@×××××.com>