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Author SHA1 Message Date
erbsenzaehlerandMarco Costalba ca464fc89e Cleanup Makfile for MacOs 
1) Explicitly setting the default lib to the system-default is not
   needed on a Mac. See:
   http://libcxx.llvm.org/docs/UsingLibcxx.html

2) We do no longer need to exclude bmi2-builds from LTO. See:
   https://llvm.org/bugs/show_bug.cgi?id=19416

Changes tested and discussed on FishCooking:
   https://groups.google.com/forum/?fromgroups=#!topic/fishcooking/acUQtKtEzMM

No functional change.
 2016-11-25 08:46:20 +01:00
erbsenzaehlerandMarco Costalba 2dd24dc4e6 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
 2016-05-01 14:18:16 +02:00
erbsenzaehlerandJoona Kiiski 4048bae47b Use -O3 for all compilers (including ICC) 
There seems to be no benefit from using -fast over -O3 with icc.
So use -O3 everywhere.

No functional change

Resolves #652
 2016-04-24 00:55:56 +01:00