[ale] GCC options...

[James Sumners]

I have to mention it. You know that a majority of the list does not view email
like they would a webpage (the two are seperate things and should stay that
way IMHO) yet you leave us guessing about which paragraph would have been bold
faced.

That out of the way here is your answer: http://freshmeat.net/articles/view/730/

<quote who="Brian J. Dowd">
> |Can someone translate the paragraph with the bold type into common
> English for me?
> This is cut straight from the Gnu GCC Manual.
> Should I just not worry about the -mcpu option since -march will
> properly optimise the same way?
> -Brian
> Apologies in advance to those who eschew html e-mail.....
>
> -mcpu=cpu type|
>     Assume the defaults for the machine type cpu type when scheduling
>     instructions. The choices for cpu type are:
>
>     `i386' 	`i486' 	`i586' 	`i686'
>     `pentium' 	`pentiumpro' 	`k6'
>
>     * While picking a specific cpu type will schedule things
>     appropriately for that particular chip*, *the compiler will not
>     generate any code that does not run on the i386* *without the
>     `-march=cpu type' option being used*. `i586' is equivalent to
>     `pentium' and `i686' is equivalent to `pentiumpro'. `k6' is the AMD
>     chip as opposed to the Intel ones.
>
> |-march=cpu type|
>     Generate instructions for the machine type cpu type. The choices for
>     cpu type are the same as for `-mcpu'. Moreover, specifying
>     `-march=cpu type' implies `-mcpu=cpu type'.
>
> ||<snip>
>
>
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>


-- 
I used to be interested in Windows NT, but the more I see of it the more it
looks like traditional Windows with a stabler kernel. I don't find anything
technically interesting there. In my opinion MS is a lot better at making
money than it is at making good operating systems.  -- Linus Torvalds
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