From: Jean-Francois Romang <jeanfrancois.romang@gmail.com>
Date: Thu, 10 Apr 2014 18:07:40 +0000 (+0200)
Subject: Add ARCH x86-64-bmi2 support
X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=226bbc1e632c18cfd4d76aa9092c4575b0de0cf5;hp=226bbc1e632c18cfd4d76aa9092c4575b0de0cf5;p=stockfish

Add ARCH x86-64-bmi2 support

Intel Haswell and newer CPUs can calculate sliders
attacks using special PEXT asm instructions instead
of magic bitboards. This gives a +3% speed up.

To enable it just compile with ARCH=x86-64-bmi2

No functional change.
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