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c program compiling method and compiler

A program compilation and program technology, applied in the communication field, can solve the problems of slow speed, more time-consuming, and time-consuming back-end stages, and achieve the effects of speeding up, reducing compilation time, and improving compilation efficiency

Active Publication Date: 2018-10-19
SHANGHAI EASTSOFT MICROELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the scale and complexity of user C programs continue to increase, the compilation process will take more time
[0003] In the prior art, both intermediate code optimization and object code generation are performed in units of C program files, and each function in the file needs to be processed one by one, which is very slow, resulting in a very time-consuming back-end stage in the compilation process.

Method used

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Embodiment Construction

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0021] figure 1 The schematic flow chart of the C program compiling method provided by the present invention, as figure 1 As shown, the method includes:

[0022] S101. The C program compiler sequentially performs lexical analysis, syntax analysis, semantic analysis and intermediate code generation on the C program.

[0023] It should be noted t...

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Abstract

An embodiment of the invention provides a C program compiling method and a C program compiler. The C program compiling method includes subjecting a C program to lexical analysis, grammatical analysis, semantic analysis and intermediate code generation sequentially, allocating the C program subjected to semantic analysis and intermediate code generation on at least two threads by taking functions as units so as to perform intermediate code optimization respectively; performing target code generation on the C program subjected to intermediate code optimization. The C program compiling method and the C program compiler have the advantage that time consumption in the rear-end phase can be reduced, so that C program compiling efficiency is improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a C program compiling method and a compiler. Background technique [0002] C language is widely used in the development of various system software, such as operating systems, compilers, embedded systems, parallel computing, etc. Therefore, C program compilers for various target machines emerge in endlessly. The function of the C program compiler is to convert the user's C program into a semantically equivalent target machine program. In the classic compilation architecture, the compilation process is usually divided into five serial modules, namely: lexical analysis, syntax analysis, semantic analysis and intermediate code generation, intermediate code optimization, and object code generation. Usually, the stages of lexical analysis, syntax analysis, semantic analysis and intermediate code generation are collectively referred to as the front end, and the stages of interme...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F8/41
Inventor 裘巍卢昊潘松
Owner SHANGHAI EASTSOFT MICROELECTRONICS