Design and Implementation of the Front-End and Back-End of a C Language Compiler System

Abstract

This paper investigates the key design considerations and implementation methods of the front-end and back-end of a C language compiler system. The front-end of the system employs a lexical analyzer and a syntax analyzer to accomplish token recognition and syntactic translation. With the assistance of error-handling mechanisms, the system can automatically detect and report illegal constructs, enabling developers to identify source code issues in a timely manner and thereby improving compilation quality and efficiency. The back-end of the system is implemented based on the 80×86 architecture, achieving optimized allocation of register resources. Stack-based storage management is adopted to reduce memory consumption and provide a favorable runtime environment for program execution. The proposed system supports lexical and syntactic analysis, as well as the generation and management of object files and executable files, thereby meeting the fundamental requirements of C language compilation.