Thanks to Eric Mullins we have now endian friendly
pop_1st_bit() and also is removed the need to use
-fno-strict-aliasing compiler option with GCC.
Speed is almost as fast, very small difference if any in
perft test, so I assume almost no difference in real games.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
The following new targets were added:
* osx-icc32: 32-bit x86 compiled with icpc.
* osx-icc64: 64-bit x86 compiled with icpc.
* osx-icc32-profile: 32-bit x86 compiled with icpc and pgo.
* osx-icc64-profile: 64-bit x86 compiled with icpc and pgo.
It was due to a missing -msse compiler option !
Without this option the CPU silently discards
prefetcht2 instructions during execution.
Also added a (gcc documented) hack to prevent Intel
compiler to optimize away the prefetches.
Special thanks to Heinz for testing and suggesting
improvments. And for Jim for testing icc on Windows.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Binaries are always built with symbol table in to easy
debugging and profiling.
It is now possible to run:
make strip
To remove symbol table from the compiled binary. This
could be useful to prepare the release version.
Patch by Heinz van Saanen.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
And build also symbol table. It can easily stripped
after .exe is done and it is necessary for profiling.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Some unwanted changes to Makefile slept in in patch
"Introduced the UCI_AnalyseMode option".
Revert them. No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Set gcc as default compiler on Linux, also compile
with symbols stripped to shrink binary file.
Original patch by Heinz van Saanen.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Always for 32 bit but withot relying on MSVC intrinsics.
It is very similar to previous ones, but this does not
segfaults due to -fno-strict-aliasing compiler option.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
A bunch of Intel C++ warnings removed, other silent out.
Still few remaining but need deeper look.
Also usual whitespace crap removal noise.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
