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cs_upper_bound&id=ff2d93e1b4ea34ddaa42be5e9c987861849e4b2b'>Auto-choose at runtime to do second sum in lcs_upper_boundEric Anderson This has no impact for non-DO_SECOND_SUM, but puts DO_SECOND_SUM less than a percent behind. 2010-12-26Simple movement of return calculation in lcs_upper_boundEric Anderson This increased performance of the non-DO_SECOND_SUM code a _lot_ for something so small. 2010-12-26Only add one to lcs_upper_bound or don't do the second sum.Eric Anderson The DO_SECOND_SUM define has reduced false positives, but without it has a reasonable amount less work. Thus, you must empirically test to find which has the best boost. Right now, DO_SECOND_SUM is faster. 2010-12-26Add lcs_upper_bound check before lcs_32_rough for added speedEric Anderson