diff options
Diffstat (limited to 'arm_compute/core/NEON/NEMath.inl')
| -rw-r--r-- | arm_compute/core/NEON/NEMath.inl | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arm_compute/core/NEON/NEMath.inl b/arm_compute/core/NEON/NEMath.inl index 27b4fc2c1b..172aaef941 100644 --- a/arm_compute/core/NEON/NEMath.inl +++ b/arm_compute/core/NEON/NEMath.inl @@ -65,6 +65,26 @@ inline float32x4_t vfloorq_f32(float32x4_t val) return vbslq_f32(vcgtq_f32(r, val), vsubq_f32(r, CONST_1), r); } +inline float32x4_t vroundq_rte_f32(float32x4_t val) +{ +#ifdef __aarch64__ + return vrndnq_f32(val); +#else // __aarch64__ + static const float32x4_t CONST_HALF_FLOAT = vdupq_n_f32(0.5f); + static const float32x4_t CONST_1_FLOAT = vdupq_n_f32(1.f); + static const int32x4_t CONST_1_INT = vdupq_n_s32(1); + const float32x4_t floor_val = vfloorq_f32(val); + const float32x4_t diff = vsubq_f32(val, floor_val); + + /* + * Select the floor value when (diff<0.5 || (diff==0.5 && floor_val%2==0). + * This condition is checked by vorrq_u32(vcltq_f32(diff, CONST_HALF_FLOAT) ,vandq_u32(vceqq_f32(diff, CONST_HALF_FLOAT) , vmvnq_u32(vtstq_s32(vandq_s32(vcvtq_s32_f32(floor_val), CONST_1_INT),CONST_1_INT)))) + */ + + return vbslq_f32(vorrq_u32(vcltq_f32(diff, CONST_HALF_FLOAT) ,vandq_u32(vceqq_f32(diff, CONST_HALF_FLOAT) , vmvnq_u32(vtstq_s32(vandq_s32(vcvtq_s32_f32(floor_val), CONST_1_INT),CONST_1_INT)))), floor_val, vaddq_f32(floor_val, CONST_1_FLOAT)); +#endif // __aarch64__ +} + inline float32x2_t vinvsqrt_f32(float32x2_t x) { float32x2_t sqrt_reciprocal = vrsqrte_f32(x); @@ -184,6 +204,12 @@ inline float16x8_t vfloorq_f16(float16x8_t val) return vbslq_f16(vcgtq_f16(r, val), vsubq_f16(r, CONST_1), r); } + +inline float16x8_t vroundq_rte_f16(float16x8_t val) +{ + return vrndnq_f16(val); +} + inline float16x4_t vinvsqrt_f16(float16x4_t x) { float16x4_t sqrt_reciprocal = vrsqrte_f16(x); |