X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Ftypes.h;h=10dfdb07183d1a09c7f8b281f8b71bb1e7301445;hp=c43eee3df14ed3bea9692b44fad299d40bde1f71;hb=20023ac9b8c28d8b15308d7bf5be4fad8501535d;hpb=87886128288a82dabc78c2ce6dd688f42eaf8212

diff --git a/src/types.h b/src/types.h
index c43eee3d..10dfdb07 100644
--- a/src/types.h
+++ b/src/types.h
@@ -60,13 +60,12 @@
 /// _WIN64             Building on Windows 64 bit
 
 #if defined(_WIN64) && defined(_MSC_VER) // No Makefile used
-#  include <intrin.h> // MSVC popcnt and bsfq instrinsics
+#  include <intrin.h> // Microsoft header for _BitScanForward64()
 #  define IS_64BIT
-#  define USE_BSFQ
 #endif
 
-#if defined(USE_POPCNT) && defined(__INTEL_COMPILER) && defined(_MSC_VER)
-#  include <nmmintrin.h> // Intel header for _mm_popcnt_u64() intrinsic
+#if defined(USE_POPCNT) && (defined(__INTEL_COMPILER) || defined(_MSC_VER))
+#  include <nmmintrin.h> // Intel and Microsoft header for _mm_popcnt_u64()
 #endif
 
 #if !defined(NO_PREFETCH) && (defined(__INTEL_COMPILER) || defined(_MSC_VER))