Subject: undocumented -march=x86-64 option in gcc 4.1
To: None <port-amd64@netbsd.org>
From: Blair Sadewitz <blair.sadewitz@gmail.com>
List: port-amd64
Date: 04/08/2007 22:22:22
There is an [undocumented] 'x86-64' architecture type in gcc 4.1 which
_apparently_ generates instructions common to AMD64 and EMT64.  I'm
looking into this further to make sure that this is indeed the case.
If it is, then it is my position that:

-- we should patch the gcc(1) manual page to reflect this

-- NetBSD/amd64 builds should use this by default.

Comments?

Regards,

--Blair

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