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a9138cdb36
``` --------------------------------------------------------------- Benchmark old new --------------------------------------------------------------- bm_vector_bool_count/1 1.92 ns 1.92 ns bm_vector_bool_count/2 1.92 ns 1.92 ns bm_vector_bool_count/3 1.92 ns 1.92 ns bm_vector_bool_count/4 1.92 ns 1.92 ns bm_vector_bool_count/5 1.92 ns 1.92 ns bm_vector_bool_count/6 1.92 ns 1.92 ns bm_vector_bool_count/7 1.92 ns 1.92 ns bm_vector_bool_count/8 1.92 ns 1.92 ns bm_vector_bool_count/16 1.92 ns 1.92 ns bm_vector_bool_count/64 2.24 ns 2.25 ns bm_vector_bool_count/512 3.19 ns 3.20 ns bm_vector_bool_count/4096 14.1 ns 12.3 ns bm_vector_bool_count/32768 84.0 ns 83.6 ns bm_vector_bool_count/262144 664 ns 661 ns bm_vector_bool_count/1048576 2623 ns 2628 ns bm_vector_bool_ranges_count/1 1.07 ns 1.92 ns bm_vector_bool_ranges_count/2 1.65 ns 1.92 ns bm_vector_bool_ranges_count/3 2.27 ns 1.92 ns bm_vector_bool_ranges_count/4 2.68 ns 1.92 ns bm_vector_bool_ranges_count/5 3.33 ns 1.92 ns bm_vector_bool_ranges_count/6 3.99 ns 1.92 ns bm_vector_bool_ranges_count/7 4.67 ns 1.92 ns bm_vector_bool_ranges_count/8 5.19 ns 1.92 ns bm_vector_bool_ranges_count/16 11.1 ns 1.92 ns bm_vector_bool_ranges_count/64 52.2 ns 2.24 ns bm_vector_bool_ranges_count/512 452 ns 3.20 ns bm_vector_bool_ranges_count/4096 3577 ns 12.1 ns bm_vector_bool_ranges_count/32768 28725 ns 83.7 ns bm_vector_bool_ranges_count/262144 229676 ns 662 ns bm_vector_bool_ranges_count/1048576 905574 ns 2625 ns ``` Reviewed By: #libc, ldionne Spies: arichardson, ldionne, libcxx-commits Differential Revision: https://reviews.llvm.org/D156956