diff options
Diffstat (limited to 'src/include/port/simd.h')
| -rw-r--r-- | src/include/port/simd.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/include/port/simd.h b/src/include/port/simd.h index 61e4362258b..a425cd887b1 100644 --- a/src/include/port/simd.h +++ b/src/include/port/simd.h @@ -52,7 +52,18 @@ static inline Vector8 vector8_broadcast(const uint8 c); static inline bool vector8_has(const Vector8 v, const uint8 c); static inline bool vector8_has_zero(const Vector8 v); static inline bool vector8_has_le(const Vector8 v, const uint8 c); +static inline bool vector8_is_highbit_set(const Vector8 v); +/* arithmetic operations */ +static inline Vector8 vector8_or(const Vector8 v1, const Vector8 v2); + +/* Different semantics for SIMD architectures. */ +#ifndef USE_NO_SIMD + +/* comparisons between vectors */ +static inline Vector8 vector8_eq(const Vector8 v1, const Vector8 v2); + +#endif /* ! USE_NO_SIMD */ /* * Load a chunk of memory into the given vector. @@ -193,4 +204,48 @@ vector8_has_le(const Vector8 v, const uint8 c) return result; } +/* + * Return true if the high bit of any element is set + */ +static inline bool +vector8_is_highbit_set(const Vector8 v) +{ +#ifdef USE_SSE2 + return _mm_movemask_epi8(v) != 0; +#else + return v & vector8_broadcast(0x80); +#endif +} + +/* + * Return the bitwise OR of the inputs + */ +static inline Vector8 +vector8_or(const Vector8 v1, const Vector8 v2) +{ +#ifdef USE_SSE2 + return _mm_or_si128(v1, v2); +#else + return v1 | v2; +#endif +} + + +/* Different semantics for SIMD architectures. */ +#ifndef USE_NO_SIMD + +/* + * Return a vector with all bits set in each lane where the the corresponding + * lanes in the inputs are equal. + */ +static inline Vector8 +vector8_eq(const Vector8 v1, const Vector8 v2) +{ +#ifdef USE_SSE2 + return _mm_cmpeq_epi8(v1, v2); +#endif +} + +#endif /* ! USE_NO_SIMD */ + #endif /* SIMD_H */ |