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The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

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Re: [vox-tech] g++ optimization
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Re: [vox-tech] g++ optimization


  • Subject: Re: [vox-tech] g++ optimization
  • From: Micah Cowan <micah@cMAPSowanbox.com>
  • Date: Thu, 08 Mar 2001 12:47:38 -0800
  • References: 20010308123328.A4460@dirac.org

On Thu, Mar 08, 2001 at 12:33:28PM -0800, Peter Jay Salzman wrote:
> i've always compiled my c++ with -O3.  i just looked through man and info
> g++ and found that they only mention "-O", with no level of optimization.
> 
> does g++ really not recognize levels of optimization?  on one hand, no
> mention is made of this.
> 
> on the other hand, g++ doesn't seem to complain about "-O3".
> 
> what's the scoop?
> 
> p

My g++ manpage points out that it is listing only the C++-related
subset of features for gcc (since g++ just calls gcc), and since gcc
supports -O<level>, it would seem g++ must also.

Micah


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