Marco Costalba b0858877ae Remove sorting optimization for many zeroes ...

With negative history we don't have anymore a
lot of zeroes to score, so just split moves in
positives and non-positives sets.

Speed up is almost zero, we cannot test speed directly
because node count changed due to reorder, but I have
verified sorting is correct. With a profiler I have
seen we gain a little in sort_moves() and lose a little
in insertion_sort(), so the net effect is almost zero,
but code is simpler.

No real change, just move reordering.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>

2010-02-05 18:04:08 +01:00

..

application.cpp

Clean killers handling in movepicker

2009-08-26 15:38:47 +01:00

application.h

Remove unused members in Application class

2009-07-26 16:11:20 +01:00

benchmark.cpp

Fix sending of best move during an infinite search

2010-01-10 13:18:43 +01:00

benchmark.h

Update copyright year

2009-05-07 14:54:40 +02:00

bitbase.cpp

Update copyright year

2009-05-07 14:54:40 +02:00

bitbase.h

Update copyright year

2009-05-07 14:54:40 +02:00

bitboard.cpp

Fix a little warning under gcc compiler

2009-12-30 13:25:22 +01:00

bitboard.h

Logaritmic futility margins

2009-11-23 20:59:24 +01:00

bitcount.h

Add hardware POPCNT support for gcc

2010-01-31 09:39:32 +01:00

book.cpp

Simplify move legality check for uncommon cases

2009-09-22 07:07:18 +01:00

book.h

Update copyright year

2009-05-07 14:54:40 +02:00

color.h

Use string instead of std::string

2009-05-10 18:38:47 +01:00

COPYING

Initial import of Glaurung 2.1

2008-09-01 07:59:13 +02:00

depth.h

Use calculate_reduction() function to simplify code

2010-01-28 11:15:41 +01:00

direction.cpp

Space inflate and cleanup direction.cpp

2009-05-20 12:02:39 +02:00

direction.h

Update copyright year

2009-05-07 14:54:40 +02:00

endgame.cpp

Rename piece_attacks_from() in attacks_from()

2009-09-20 14:55:28 +01:00

endgame.h

Better naming and document some endgame functions

2009-08-14 08:19:55 +01:00

evaluate.cpp

Save futilityMargin for both colors

2010-02-01 20:06:56 +01:00

evaluate.h

Save futilityMargin for both colors

2010-02-01 20:06:56 +01:00

history.cpp

Convert gains to use a piece-to mapping

2010-02-03 19:33:59 +01:00

history.h

Convert gains to use a piece-to mapping

2010-02-03 19:33:59 +01:00

lock.h

Simplify locking in sp_search and sp_search_pv

2010-01-27 17:58:04 +01:00

main.cpp

Implemented perft

2009-11-01 17:05:00 +01:00

Makefile

Add hardware POPCNT support for gcc

2010-01-31 09:39:32 +01:00

material.cpp

Fix duplicated scaling function

2010-02-01 19:33:02 +01:00

material.h

Move game phase computation to MaterialInfo

2009-11-14 17:57:49 +01:00

mersenne.cpp

Warnings termination fest

2008-09-24 00:32:53 +02:00

mersenne.h

Update copyright year

2009-05-07 14:54:40 +02:00

misc.cpp

Restore development version

2009-12-30 13:25:21 +01:00

misc.h

Use string instead of std::string

2009-05-10 18:38:47 +01:00

move.cpp

Micro optimize and rename move_promotion()

2009-06-20 09:04:32 +01:00

move.h

Remove sorting optimization for many zeroes

2010-02-05 18:04:08 +01:00

movegen.cpp

Small code-style touches in movegen.cpp

2009-11-06 14:42:48 +01:00

movegen.h

Retire MovePicker::discovered_check_candidates()

2009-11-05 07:03:48 +01:00

movepick.cpp

Be sure negative see evasions are at the bottom

2010-02-05 08:19:39 +01:00

movepick.h

Simplify locking in sp_search and sp_search_pv

2010-01-27 17:58:04 +01:00

pawns.cpp

Convert pawns evaluation to Score

2009-11-14 17:57:50 +01:00

pawns.h

Convert pawns evaluation to Score

2009-11-14 17:57:50 +01:00

piece.cpp

Update copyright year

2009-05-07 14:54:40 +02:00

piece.h

Retire piece_is_slider(PieceType pt)

2009-09-04 08:21:07 +01:00

position.cpp

Implement MaxGain table

2010-01-27 09:57:14 +01:00

position.h

Implement MaxGain table

2010-01-27 09:57:14 +01:00

psqtab.h

Joona tweaks of piece values

2009-07-02 06:29:14 +01:00

san.cpp

Avoid copy a Position to get a move's san notation

2010-01-25 16:22:50 +01:00

san.h

Avoid copy a Position to get a move's san notation

2010-01-25 16:22:50 +01:00

scale.h

Update copyright year

2009-05-07 14:54:40 +02:00

search.cpp

Give FailLow flag more descriptive name

2010-02-05 15:21:21 +01:00

search.h

Allow SearchStack to link an EvalInfo object

2010-01-18 10:03:09 +01:00

square.h

Update copyright year

2009-05-07 14:54:40 +02:00

thread.h

Remove unused failHighPly1 flag

2010-02-05 15:21:05 +01:00

tt.cpp

Increase TT size limit to 8 GB

2010-02-01 16:53:10 +01:00

tt.h

Increase TT size limit to 8 GB

2010-02-01 16:53:10 +01:00

types.h

Fix correct name of int64_t type

2009-11-07 10:08:28 +01:00

uci.cpp

Standardize set_option function

2010-01-27 20:03:44 +01:00

uci.h

Update copyright year

2009-05-07 14:54:40 +02:00

ucioption.cpp

Increase TT size limit to 8 GB

2010-02-01 16:53:10 +01:00

ucioption.h

Use string instead of std::string

2009-05-10 18:38:47 +01:00

value.cpp

Update copyright year

2009-05-07 14:54:40 +02:00

value.h

Fix enum Value issue with gcc 4.4

2010-01-19 23:30:23 +01:00