Gentoo Archives: gentoo-user

From: Graham Murray <graham@×××××××××××.uk>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] gcc-4.3.x and Core 2 Duo, safe way
Date: Mon, 09 Jun 2008 05:43:44
Message-Id: 87od6bb1te.fsf@newton.gmurray.org.uk
In Reply to: [gentoo-user] gcc-4.3.x and Core 2 Duo, safe way by Andrew Gaydenko
1 Andrew Gaydenko <a@××××××××.com> writes:
2
3 > gcc-4.3.1 is umasked now. I'm on ~amd64 with Core 2 Duo CPU. Is it
4 > sufficient just to set
5 >
6 > CFLAGS="-O2 -march=core2 -mtune=core2 -pipe"
7 >
8 > instead of
9 >
10 > CFLAGS="-O2 -march=native -mtune=native -pipe"
11 >
12 > which I have in make.conf now? Are there any other things to do?
13
14 Should the two not be equivalent? On a core2 processor, should
15 -march=native not generate code for the core2?
16 --
17 gentoo-user@l.g.o mailing list

Replies

Subject Author
Re: [gentoo-user] gcc-4.3.x and Core 2 Duo, safe way Andrew Gaydenko <a@××××××××.com>
Re: [gentoo-user] gcc-4.3.x and Core 2 Duo, safe way Justin <justin@×××××××××.net>
Re: [gentoo-user] gcc-4.3.x and Core 2 Duo, safe way Robert Bridge <robert@××××××××.com>