Optimized code with GCC-3.3.3

Optimized code with GCC-3.3.3

[petsku86]

Hi! 
I am trying to optimize to code produced by gcc-3.3.3 for my pentium4. 
After reading the following manual page a got a little confused.

http://tinyurl.com/5zt9b

Does -march=cpu-type mean that a I automaticly have also -mcpu or do I have 
to specify them both to get the best possible code? Imply is a verb which
when translated to my language (Finnish) could mean that it comes automaticly 
or it needs to be specified. I tried using google but I didn't get any 
answers there  because I saw the -march option used both with and without 
-mcpu. Thanks in advance. 

Regards,
Petteri Räty

Re: Optimized code with GCC-3.3.3

[Alexander Helm]

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Hi,

march includes mcpu.
Or mathematically march => mcpu (this is what implies means).

	CU
	Alexander

petsku86@welho.com wrote:
| Hi!
| I am trying to optimize to code produced by gcc-3.3.3 for my pentium4.
| After reading the following manual page a got a little confused.
|
| http://tinyurl.com/5zt9b
|
| Does -march=cpu-type mean that a I automaticly have also -mcpu or do I
have
| to specify them both to get the best possible code? Imply is a verb which
| when translated to my language (Finnish) could mean that it comes
automaticly
| or it needs to be specified. I tried using google but I didn't get any
| answers there  because I saw the -march option used both with and without
| -mcpu. Thanks in advance.
|
| Regards,
| Petteri Räty
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