prime6bytes       964 lib/zstd/compress.c static const U64 prime6bytes = 227718039650203ULL;
prime6bytes       965 lib/zstd/compress.c static size_t ZSTD_hash6(U64 u, U32 h) { return (size_t)(((u << (64 - 48)) * prime6bytes) >> (64 - h)); }