Data Flow Analysis Definition: Data-flow analysis is a technique for gathering information about the possible set of values calculated at various points in a computer program. A program's control flow graph(CFG)is used to determine those parts of a program to which a particular value assigned to a variable might propagate. The information gathered is often used by compilers when optimizing a program.A canonical example of a data-flow analysis is reaching definitions.Data Flow Analysis  Definition:  Data-flow analysis is a technique for gathering information about the possible set of values calculated at various points in a computer program.  A program’s control flow graph (CFG) is used to determine those parts of a program to which a particular value assigned to a variable might propagate.  The information gathered is often used by compilers when optimizing a program. A canonical example of a data-flow analysis is reaching definitions. 7