Re: First stage of Quesa changes now complete

[Joseph J. S. <jo...@st...>]

At 12:53 PM +0000 1/28/05, Roger Holmes wrote:

>>When Shark sees often-used square root operations, it suggests that 
>>if you don't need full precision, you can use a special PowerPC 
>>instruction, frsqrte, floating reciprocal square root estimate.  I 
>>don't know if we want to get into platform-dependent optimizations 
>>though.
>
>Do they suggest how to generate such code from a high level language ?

You use the inline assembly feature of the particular compiler you're 
using.  I agree with James -- I don't think we should get into this 
level of platform- (and compiler-) dependent optimizations yet.

Best,
- Joe

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