Match all items in Group 1 with correct options from those given in Group 2
Group 1 P) Regular expression Q) Pushdown automata R) Dataflow analysis S) Register allocation Group 2 1) Syntax analysis 2) Code generation 3) Lexical analysis 4) Code Optimization
Regular expression denote structure of data especially text string-lexical analyzer break input text into logical unit such as identifiers. Push down automata-Syntax analysis. Data flow analysis – Code optimization Register allocation – Code generation