Vladislav Vaintroub 16ac8404ac MDEV-19787 Speedup Table_map_iterator, via compiler intrinsics ...

Use __builtin_ctzll on GCC/Clang and _BitScanForward/_BitScanForward64 on
MSVC to speed up Table_map_iterator::next_bit(), up to 3 times in benchmarks

2019-06-19 11:10:49 +02:00

7.7 KiB

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