Fuzzy Array Data
نویسنده
چکیده
Exact array dataaow analysis can be achieved in the general case if the only control structures are the sequence, the do-loop and restricted ifs, and if loop counter bounds and array subscripts are aane expressions of surrounding loop counters and possibly some integer constants. In this paper, we begin the study of dataaow analysis of dynamic control programs, where arbitrary ifs and whiles are allowed. In the general case, this dataaow analysis can only be approximate, hence the name Fuzzy Array Dataaow Analysis. R esum e Une analyse pr ecise du ot des donn ees, en pr esence de tableaux, ne peut ^ etre eeectu ee dans le cas g en eral que si les seules structures de contr^ ole sont le s equence-ment, la boucle do et une forme restreinte de tests, et si les bornes des compteurs des boucles et les indices des tableaux sont des expressions aanes des compteurs ext erieurs et de constantes enti eres. De tels programmes sont dits a contr^ ole sta-tique. Nous commenn cons dans ce papier l' etude de l'analyse de ot de donn ees de programmes a contr^ ole dynamique, incluant des tests quelconques et des boucles while. Dans le cas g en eral, une telle analyse de ot des donn ees ne peut ^ etre qu'approximative. Abstract Exact array dataaow analysis can be achieved in the general case if the only control structures are the sequence, the do-loop and restricted ifs, and if loop counter bounds and array subscripts are aane expressions of surrounding loop counters and possibly some integer constants. In this paper, we begin the study of dataaow analysis of dynamic control programs, where arbitrary ifs and whiles are allowed. In the general case, this dataaow analysis can only be approximate, hence the name Fuzzy Array Dataaow Analysis. R esum e Une analyse pr ecise du ot des donn ees, en pr esence de tableaux, ne peut ^ etre eeectu ee dans le cas g en eral que si les seules structures de contr^ ole sont le s equencement, la boucle do et une forme restreinte de tests, et si les bornes des compteurs des boucles et les indices des tableaux sont des expressions aanes des compteurs ext erieurs et de constantes enti eres. De tels programmes sont dits a contr^ ole statique. Nous commenn cons dans ce papier l' etude de l'analyse de ot de donn ees …
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