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Rewrite bsfq management

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Use compiler intrinsics when possible to
avoid writing platform specific asm code.

Tested on Windows 7 with MSVC 2013 and mingw 4.8.3 (32 and 64 bit)
and on Linux Mint with g++ 4.8.4 and clang 3.4 (32 and 64 bit).

No functional change

Resolves #609
This commit is contained in:
Marco Costalba
2016-03-28 10:08:06 +02:00
committed by Joona Kiiski
parent 24dac5ccd3
commit db4b0d8b7d
4 changed files with 11 additions and 52 deletions
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1
src/types.h
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@@ -62,7 +62,6 @@
#if defined(_WIN64) && defined(_MSC_VER) // No Makefile used
# include <intrin.h> // MSVC popcnt and bsfq instrinsics
# define IS_64BIT
# define USE_BSFQ
#endif
#if defined(USE_POPCNT) && defined(__INTEL_COMPILER) && defined(_MSC_VER)