drstrip

short vectors - shifting across word boundaries?

Discussion created by drstrip on Jul 14, 2009
Latest reply on Jul 16, 2009 by genaganna

I have some code where I would like to perform a circular shift of the contents of an int4 by one word.  Can this be done with some sort of shift operator, or something that is more efficient than 5 assignments?

int4 a; int4 b; b.x = a.x; a.x = a.y; a.y = a.z; a.z = a.w; a.w = b.x;

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