From: "Joseph S. Myers" <joseph@codesourcery.com>
To: Xinyu Qi <xyqi@marvell.com>
Cc: "gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>,
ramana.radhakrishnan@arm.com
Subject: Re: [PATCH, ARM] iWMMXT maintenance
Date: Tue, 21 Jun 2011 10:47:00 -0000 [thread overview]
Message-ID: <Pine.LNX.4.64.1106211005520.30131@digraph.polyomino.org.uk> (raw)
In-Reply-To: <4737A960563B524DA805CA602BE04B306010BD2373@SC-VEXCH2.marvell.com>
On Mon, 20 Jun 2011, Xinyu Qi wrote:
> *gcc/config/arm/elf.h: Add option -mwmmxt.
> *gcc/config/arm/arm.opt: Same.
Why? And where are the documentation updates? How does this relate to
the existing iWMMXt options?
I thought the plan (Ramana?) was to move to having a -msimd= option to
select SIMD units, reflecting that "neon" is not an FPU and "iwmmxt" is
not an architecture (or a CPU). So you'd have -march=armv5te
-msimd=iwmmxt as replacement for the present -march=iwmmxt - or
-mcpu=<whatever> implying that combination of options. Given that idea
I'm not sure adding another legacy option makes sense - at least the
option should have the desired -msimd=iwmmxt spelling.
--
Joseph S. Myers
joseph@codesourcery.com
next prev parent reply other threads:[~2011-06-21 10:11 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-21 7:29 Xinyu Qi
2011-06-21 10:47 ` Joseph S. Myers [this message]
2011-06-21 16:56 ` Ramana Radhakrishnan
2011-06-24 10:29 ` Xinyu Qi
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