union { Bitboard bb; uint16_t u[4]; } v = { b };
return PopCnt16[v.u[0]] + PopCnt16[v.u[1]] + PopCnt16[v.u[2]] + PopCnt16[v.u[3]];
-#elif defined(_MSC_VER) || defined(__INTEL_COMPILER)
+#elif defined(_MSC_VER)
return (int)_mm_popcnt_u64(b);
/// lsb() and msb() return the least/most significant bit in a non-zero bitboard
-#if defined(__GNUC__) // GCC, Clang, ICC
+#if defined(__GNUC__) // GCC, Clang, ICX
inline Square lsb(Bitboard b) {
assert(b);