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Fix POPCNT support for Intel compiler under Windows

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Reported by Martin Wyngaarden that also confirmed
this patch to work.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba 2011-01-05 11:02:05 +01:00
parent 22ca7a601f
commit 7614501362
2 changed files with 7 additions and 0 deletions
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2
src/bitcount.h
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@ -85,6 +85,8 @@ template<>
inline int count_1s<CNT_POPCNT>(Bitboard b) { inline int count_1s<CNT_POPCNT>(Bitboard b) {
#if !defined(USE_POPCNT) #if !defined(USE_POPCNT)
return int(b != 0); // Avoid 'b not used' warning return int(b != 0); // Avoid 'b not used' warning
#elif defined(_MSC_VER) && defined(__INTEL_COMPILER)
return _mm_popcnt_u64(b);
#elif defined(_MSC_VER) #elif defined(_MSC_VER)
return __popcnt64(b); return __popcnt64(b);
#elif defined(__GNUC__) #elif defined(__GNUC__)

5
src/types.h
View file

@ -86,6 +86,11 @@ typedef uint64_t Bitboard;
#define USE_BSFQ #define USE_BSFQ
#endif #endif
// Intel header for _mm_popcnt_u64() intrinsic
#if defined(USE_POPCNT) && defined(_MSC_VER) && defined(__INTEL_COMPILER)
#include <nmmintrin.h>
#endif
// Cache line alignment specification // Cache line alignment specification
#if defined(_MSC_VER) || defined(__INTEL_COMPILER) #if defined(_MSC_VER) || defined(__INTEL_COMPILER)
#define CACHE_LINE_ALIGNMENT __declspec(align(64)) #define CACHE_LINE_ALIGNMENT __declspec(align(64))