Clustering case statements for indirect branch predictors

October 06, 2019 Β· Declared Dead Β· πŸ› arXiv.org

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Authors Evandro Menezes, Sebastian Pop, Aditya Kumar arXiv ID 1910.02351 Category cs.DS: Data Structures & Algorithms Cross-listed cs.CC, cs.PF Citations 0 Venue arXiv.org Last Checked 5 months ago
Abstract
We present an O(nlogn) algorithm to compile a switch statement into jump tables. To generate jump tables that can be efficiently predicted by current hardware branch predictors, we added an upper bound on the number of entries for each table. This modification of the previously best known algorithm reduces the complexity from O(n^2) to O(nlogn).
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