Explain front end and back end in brief. (Grouping of phases)

Front end and Back end in brief. (Grouping of phases)

The phases are collected into a Front end and Back end.

• Front end
• The front end consist of those phases, that depends primarily on source language and largely independent of the target machine.
• Front end includes lexical analysis, syntax analysis, semantic analysis, intermediate code generation and creation of symbol table.
• Certain amount of code optimization can be done by front end.
• Back end
• The back end consists of those phases, that depends on target machine and do not depend on source program.
• Back end includes code optimization and code generation phase with necessary error handling and symbol table operation.