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[PATCH] Don't imply 3DNow! on x86-64

From: Jakub Jelinek <jakub at redhat dot com>
To: Richard Henderson <rth at redhat dot com>, jh at suse dot cz
Cc: gcc-patches at gcc dot gnu dot org
Date: Wed, 18 Feb 2004 21:11:26 +0100
Subject: [PATCH] Don't imply 3DNow! on x86-64
Reply-to: Jakub Jelinek <jakub at redhat dot com>

Hi!

Intel's Nocona chips don't have 3DNow! instructions.  The following
patch changes -m64 to avoid implying -m3dnow, so that code compiled
with -m64 can be usable on both platforms.  -march=k8, -march=opteron,
-march=athlon64 and -march=athlon-fx will still imply -m3dnow, or it
can be requested with -m3dnow.  -m64 (and -march=x86-64) should be the lowest
common denominator, once the Intel IA-32e chips are added to -march table
they'll have on the other side SSE3 etc.
Ok for trunk/3.4 (the first patch) and 3.3 (second patch)?

	Jakub

Attachment: gcc-m64-no3dnow.patch
Description: Text document

Attachment: gcc33-m64-no3dnow.patch
Description: Text document

Follow-Ups:
- Re: [PATCH] Don't imply 3DNow! on x86-64
  - From: Richard Henderson

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