CL_FP_CORRECTLY_ROUNDED_DIVIDE_SQRT  292 3rdparty/include/opencl/1.2/CL/cl.h #define CL_FP_CORRECTLY_ROUNDED_DIVIDE_SQRT         (1 << 7)
CL_FP_CORRECTLY_ROUNDED_DIVIDE_SQRT  461 modules/core/src/ocl.cpp #define CL_FP_CORRECTLY_ROUNDED_DIVIDE_SQRT         (1 << 7)