How to utilize the auto vectorizing advantage for OpenCL on CPU?

Discussion created by zhuzxy on Sep 20, 2011
Latest reply on Sep 20, 2011 by genaganna

when I use vector in the opencl code, like int4/char 4/uchar 8, is it guaranteed to be translated using SSE instructions on CPU?  It seems not in my cl code after check the amd app kernel analyzer. What shall I pay attention to in my cl code when I want to use the vectorize abilities for my opencl on CPU?