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From: Arnd Bergmann <arnd@arndb.de>
To: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Subject: Re: [PATCH] add Kconfig option for optimizing for cell
Date: Sat, 15 Sep 2007 03:02:23 +0200
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On Saturday 15 September 2007, Josh Boyer wrote:
> On Sat, 2007-09-15 at 02:21 +0200, Arnd Bergmann wrote:
> > Since the PPE on cell is an in-order core, it suffers significantly
> > from wrong instruction scheduling. This adds an Kconfig option that
> > enables passing -mtune=cell to gcc in order to generate object
> > code that runs well on cell.
> 
> Which version of gcc supports that?
> 

gcc-4.3 will be the first official release that has everything in it,
and I think 4.1 has some parts. However, there are many patched gcc
versions in various distributions, so I tried to avoid being too
specific about the version here.

Of course, on gcc versions that don't support -mtune=cell, the 
Kconfig option does not make a difference.

	Arnd <><