From: "H. J. Lu" <hjl@lucon.org>
To: Paul Brook <paul@codesourcery.com>
Cc: binutils@sourceware.org, Nick Clifton <nickc@redhat.com>
Subject: Re: PATCH: Add --alt-nops=short|long to x86/x86-64 assemblers
Date: Thu, 15 Jun 2006 15:15:00 -0000 [thread overview]
Message-ID: <20060615150347.GD7470@lucon.org> (raw)
In-Reply-To: <200606151544.12026.paul@codesourcery.com>
On Thu, Jun 15, 2006 at 03:44:11PM +0100, Paul Brook wrote:
> > > Maybe I should add -march= and -mtune= to assembler.
> >
> > It sounds like it would be a good idea, although if it is only to
> > support this new feature then you may not want to go that far.
>
> FWIW I've found it more useful to add .cpu and/or .arch assembly directives.
> Handling the gcc spec strings for commandline controls and making sure the
> gcc and gas defaults are consistent can get painful, especially if gcc has
> several different ways of specifying the cpu variant.
x86/x86-64 assembler support .arch. But I don't think gcc uses it. I
am not sure how well it will work with existing code bases if gcc
starts generating .arch.
H.J.
next prev parent reply other threads:[~2006-06-15 15:03 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-13 20:45 H. J. Lu
2006-06-14 8:30 ` Nick Clifton
2006-06-14 15:14 ` H. J. Lu
2006-06-14 17:20 ` Nick Clifton
2006-06-14 18:07 ` H. J. Lu
2006-06-15 8:10 ` Nick Clifton
2006-06-15 14:51 ` Paul Brook
2006-06-15 15:15 ` H. J. Lu [this message]
2006-06-15 15:28 ` Paul Brook
2006-06-15 16:20 ` H. J. Lu
2006-06-15 17:08 ` Paul Brook
2006-06-15 17:41 ` H. J. Lu
2006-06-15 18:45 ` Paul Brook
2006-06-15 18:58 ` H. J. Lu
2006-06-15 19:02 ` Paul Brook
2006-06-16 7:27 ` PATCH: Add -march=/-mtune= to x86 assembler H. J. Lu
2006-06-16 15:26 ` H. J. Lu
2006-06-15 15:00 ` PATCH: Add --alt-nops=short|long to x86/x86-64 assemblers H. J. Lu
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