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enable bit manipulation instruction set 1
authordisservin <disservin.social@gmail.com>
Sun, 16 Oct 2022 12:37:01 +0000 (14:37 +0200)
committerJoost VandeVondele <Joost.VandeVondele@gmail.com>
Sun, 23 Oct 2022 18:08:18 +0000 (20:08 +0200)
bmi1 enables the use of _blsr_u64 for pop_lsb, and is availabe when avx2 is.

verified a small speedup (0.2 - 0.6%)

closes https://github.com/official-stockfish/Stockfish/pull/4202

No functional change


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