diff --git a/lib/common/bitstream.h b/lib/common/bitstream.h index a1dac889d..c9c645416 100644 --- a/lib/common/bitstream.h +++ b/lib/common/bitstream.h @@ -162,7 +162,11 @@ MEM_STATIC size_t BIT_initCStream(BIT_CStream_t* bitC, FORCE_INLINE_TEMPLATE size_t BIT_getLowerBits(size_t bitContainer, U32 const nbBits) { #if defined(STATIC_BMI2) && STATIC_BMI2 == 1 && !defined(ZSTD_NO_INTRINSICS) - return _bzhi_u64(bitContainer, nbBits); +#if defined(__x86_64__) || defined(_M_X64) + return _bzhi_u64(bitContainer, nbBits); +#else + return _bzhi_u32(bitContainer, nbBits); +#endif #else assert(nbBits < BIT_MASK_SIZE); return bitContainer & BIT_mask[nbBits];