291 typedef uint64_t U64;  typedef
301 typedef unsigned long long U64;  typedef
306 typedef U64 reg_t; /* 64-bits in x32 mode */
565             _BitScanForward64(&r, (U64)val);  in LZ4_NbCommonBytes()
570             return (unsigned)__builtin_ctzll((U64)val) >> 3;  in LZ4_NbCommonBytes()
572             const U64 m = 0x0101010101010101ULL;  in LZ4_NbCommonBytes()
574             return (unsigned)(((U64)((val & (m - 1)) * m)) >> 56);  in LZ4_NbCommonBytes()
600             return (unsigned)__clzll((U64)val) >> 3;  in LZ4_NbCommonBytes()
735             U64 const mask = 0x0101010101010101ULL;  in LZ4_NbCommonBytes()
736             U64 const t = (((val >> 8) - mask) | val) & mask;  in LZ4_NbCommonBytes()
925 LZ4_FORCE_INLINE U32 LZ4_hash5(U64 sequence, tableType_t const tableType)  in LZ4_hash5()
930         const U64 prime5bytes = 889523592379ULL;  in LZ4_hash5()
935         const U64 prime8bytes = 11400714785074694791ULL;  in LZ4_hash5()