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Re: Which 'GCC_MODEL_TUNING' vor i386?

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Re: Which 'GCC_MODEL_TUNING' vor i386?

Subject: Re: Which 'GCC_MODEL_TUNING' vor i386?
From: Eric Albert <email@hidden>
Date: Wed, 11 Jan 2006 16:22:10 -0800

On Jan 11, 2006, at 4:04 PM, Dirk Stegemann wrote:

Xcode/gcc features a compiler setting called "GCC_MODEL_TUNING" (or "-mtune") which will "Optimize instruction scheduling for this CPU. Generated code will run on older processors."
What's the effect for i386 builds?
Is it disregarded?
Are there other optimizations to be chosen?

The PowerPC options available in that setting don't affect Intel builds. The compiler default for Intel is correct for the processors we're shipping today.

Hope this helps,
Eric

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  >Which 'GCC_MODEL_TUNING' vor i386? (From: Dirk Stegemann <email@hidden>)




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