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Re: march option for atom on gcc 4.1

From: bokkuri matsu <matsubokkuri33 at gmail dot com>
To: Ian Lance Taylor <iant at google dot com>
Cc: gcc-help at gcc dot gnu dot org
Date: Thu, 12 Aug 2010 11:46:06 +0900
Subject: Re: march option for atom on gcc 4.1
References: <AANLkTin7VVHqdiAxZ4xG7HNppOPwwxccZZZpDtkPrjhA@mail.gmail.com> <AANLkTinBLwL-p_GL_2=4z92Ew6pVomYJNwXk2GHi-0LA@mail.gmail.com>

Thanks for reply.
I will try -march=i686.

Ken

2010/8/12 Ian Lance Taylor <iant@google.com>:
> On Thu, Aug 5, 2010 at 8:48 AM, bokkuri matsu <matsubokkuri33@gmail.com> wrote:
>
>> I am using gcc4.1 on intel atom D510 processor.
>> Which architecture type should be specified with march option ?
>> With some reasons, i cannot update gcc version to 4.2 which supports march=native.
>
> Support for -march=atom was not added until gcc 4.5.
>
> I don't know that any -march option is better than any other for use
> with Atom in gcc 4.1. ?Scheduling for the Atom is somewhat different
> than for other x86 chips. ?I would just go with -march=i686.
>
> Ian
>

References:
- march option for atom on gcc 4.1
  - From: bokkuri matsu
- Re: march option for atom on gcc 4.1
  - From: Ian Lance Taylor

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