skip certain constans, and add option --specific_functin to ir-to-opencl
skip certain constans, and add option --specific_functin to ir-to-opencl

hughperkins/coriander,hughperkins/cuda-on-cl,hughperkins/cuda-on-cl,hughperkins/cuda-on-cl,hughperkins/coriander,hughperkins/coriander,hughperkins/coriander,hughperkins/cuda-on-cl