Determining how many class-type checks to inline

Details Determining how many class-type checks to inline Determining how many class-type checks to inline

2007-09-04

2007-09-04

Steelman, Mary (Department: 2191)

Data processing: software development, installation, and managem

Software program development tool

Translation of code

C717S130000, C717S131000

Reexamination Certificate

active

10674933

ABSTRACT:
A method, apparatus, system, and signal-bearing medium that in an embodiment collect profile information about class-type checks, calculate a number of class-type checks that minimizes a cost of inlining, generate inline code for the number of class-type checks for a site in a method, and sort the inline code based on a frequency of the class types. Any remaining class-type checks at the site that are not handled by the inlined class-type checks are handled via an out-of-line function call. In this way, inlined code is used when it provides better performance than an out-of-line function, and the out-of-line function call is used when it provides better performance than the inlined code.

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Arnold, Matthew, Stephen Fink, Vivek Sarkar and Peter F Sweeney; “A Comparative Study of Static and Profile-Based Heuristics for Inlining”;2000; ACM; pp. 52-64.

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