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#Actualachild

Posted 20 September 2013 - 11:31 AM

[deleted - stupid post suggesting the use of the dot product intrinsic when it is clearly already being used]


#2achild

Posted 20 September 2013 - 11:18 AM

You appear to want to do it "on your own" or you want to support lower end systems, but it may be worth pointing out there is an sse4 intrinisic that does a dot product like this...

 

[edit] I do believe it operates horizontally though and wouldn't be much help if you go SoA as Hodgman suggested 


#1achild

Posted 20 September 2013 - 11:15 AM

You appear to want to do it "on your own" or you want to support lower end systems, but it may be worth pointing out there is an sse4 intrinisic that does a dot product like this...


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