question: private static void d_ucumkp ( double [ ] a , double [ ] agg , double [ ] c , int m , int n , KahanObject kbuff , KahanPlus kplus , int rl , int ru ) { double [ ] csums = new double [ 2 * n ] ; if ( agg != null ) System . arraycopy ( agg , 0 , csums , 0 , n ) ; for ( int i = rl , aix = rl * n ; i < ru ; i ++ , aix += n ) { sumAgg ( a , csums , aix , 0 , n , kbuff , kplus ) ; System . arraycopy ( csums , 0 , c , aix , n ) ; } }
target:  CUMSUM, opcode: ucumk+, dense input.