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(parent: 8f934df) | patch
Use popcount intrinsic with Interl compiler
authorerbsenzaehler <erbsenzaehler@users.noreply.github.com>
Sun, 1 May 2016 08:57:50 +0000 (10:57 +0200)
committerMarco Costalba <mcostalba@gmail.com>
Sun, 1 May 2016 12:18:16 +0000 (14:18 +0200)
commit2dd24dc4e618dc7b83799890fe7e84b09b6456b4
tree72d50f71816be18ff22b85fc335a5997995fa5cdtree | snapshot
parent8f934dff9a8644c38aaa31fc0ae90c0fab30934acommit | diff
Use popcount intrinsic with Interl compiler

It seems that icc used our fallback version of popcount.
Now use intrinsics.

icc version 16.0.2 (gcc version 5.3.0 compatibility)
bmi2 compile
uname -r 4.5.1-1-ARCH

20xbench gives a nice speedup
./stockfish-icc-master 2161515 +- 34462
./stockfish-icc-sse42 2260857 +- 50349
src/bitboard.h diff | blob | history
src/types.h diff | blob | history
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