#define u16x8_sub_saturate(a,b) vsubq_u16(a,b)
#define i16x8_sub_saturate(a,b) vsubq_s16(a,b)
-/* Converts all ones/zeros compare mask to bitmap. */
-always_inline u32
-u8x16_compare_byte_mask (u8x16 x)
+always_inline int
+u8x16_is_all_zero (u8x16 x)
{
- static int8_t const __attribute__ ((aligned (16))) xr[8] =
- {
- -7, -6, -5, -4, -3, -2, -1, 0};
- uint8x8_t mask_and = vdup_n_u8 (0x80);
- int8x8_t mask_shift = vld1_s8 (xr);
-
- uint8x8_t lo = vget_low_u8 (x);
- uint8x8_t hi = vget_high_u8 (x);
-
- lo = vand_u8 (lo, mask_and);
- lo = vshl_u8 (lo, mask_shift);
+ return !(vaddvq_u8 (x));
+}
- hi = vand_u8 (hi, mask_and);
- hi = vshl_u8 (hi, mask_shift);
+always_inline int
+u16x8_is_all_zero (u16x8 x)
+{
+ return !(vaddvq_u16 (x));
+}
- lo = vpadd_u8 (lo, lo);
- lo = vpadd_u8 (lo, lo);
- lo = vpadd_u8 (lo, lo);
+always_inline int
+u32x4_is_all_zero (u32x4 x)
+{
+ return !(vaddvq_u32 (x));
+}
- hi = vpadd_u8 (hi, hi);
- hi = vpadd_u8 (hi, hi);
- hi = vpadd_u8 (hi, hi);
+always_inline int
+u64x2_is_all_zero (u64x2 x)
+{
+ return !(vaddvq_u64 (x));
+}
- return ((hi[0] << 8) | (lo[0] & 0xff));
+/* Converts all ones/zeros compare mask to bitmap. */
+always_inline u32
+u8x16_compare_byte_mask (u8x16 x)
+{
+ uint8x16_t mask_shift =
+ { -7, -6, -5, -4, -3, -2, -1, 0, -7, -6, -5, -4, -3, -2, -1, 0 };
+ uint8x16_t mask_and = vdupq_n_u8 (0x80);
+ x = vandq_u8 (x, mask_and);
+ x = vshlq_u8 (x, vreinterpretq_s8_u8 (mask_shift));
+ x = vpaddq_u8 (x, x);
+ x = vpaddq_u8 (x, x);
+ x = vpaddq_u8 (x, x);
+ return vgetq_lane_u8 (x, 0) | (vgetq_lane_u8 (x, 1) << 8);
}
always_inline u32
return (u32) (vgetq_lane_u64 (merge3, 1) << 8) + vgetq_lane_u64 (merge3, 0);
}
+always_inline u32
+u8x16_zero_byte_mask (u8x16 input)
+{
+ return u16x8_zero_byte_mask ((u16x8) input);
+}
+
+always_inline u32
+u32x4_zero_byte_mask (u32x4 input)
+{
+ return u16x8_zero_byte_mask ((u16x8) input);
+}
+
+always_inline u32
+u64x2_zero_byte_mask (u64x2 input)
+{
+ return u16x8_zero_byte_mask ((u16x8) input);
+}
+
+
+
#endif /* included_vector_neon_h */
/*