wide/
u8x16_.rs

1use super::*;
2
3pick! {
4  if #[cfg(target_feature="sse2")] {
5    #[derive(Default, Clone, Copy, PartialEq, Eq)]
6    #[repr(C, align(16))]
7    pub struct u8x16 { pub(crate) sse: m128i }
8  } else if #[cfg(target_feature="simd128")] {
9    use core::arch::wasm32::*;
10
11    #[derive(Clone, Copy)]
12    #[repr(transparent)]
13    pub struct u8x16 { pub(crate) simd: v128 }
14
15    impl Default for u8x16 {
16      fn default() -> Self {
17        Self::splat(0)
18      }
19    }
20
21    impl PartialEq for u8x16 {
22      fn eq(&self, other: &Self) -> bool {
23        u8x16_all_true(u8x16_eq(self.simd, other.simd))
24      }
25    }
26
27    impl Eq for u8x16 { }
28  } else if #[cfg(all(target_feature="neon",target_arch="aarch64"))]{
29    use core::arch::aarch64::*;
30    #[repr(C)]
31    #[derive(Copy, Clone)]
32    pub struct u8x16 { pub(crate) neon : uint8x16_t }
33
34    impl Default for u8x16 {
35      #[inline]
36      #[must_use]
37      fn default() -> Self {
38        Self::splat(0)
39      }
40    }
41
42    impl PartialEq for u8x16 {
43      #[inline]
44      #[must_use]
45      fn eq(&self, other: &Self) -> bool {
46        unsafe { vminvq_u8(vceqq_u8(self.neon, other.neon))==u8::MAX }
47      }
48    }
49
50    impl Eq for u8x16 { }
51  } else {
52    #[derive(Default, Clone, Copy, PartialEq, Eq)]
53    #[repr(C, align(16))]
54    pub struct u8x16 { pub(crate) arr: [u8;16] }
55  }
56}
57
58int_uint_consts!(u8, 16, u8x16, 128);
59
60unsafe impl Zeroable for u8x16 {}
61unsafe impl Pod for u8x16 {}
62
63impl Add for u8x16 {
64  type Output = Self;
65  #[inline]
66  #[must_use]
67  fn add(self, rhs: Self) -> Self::Output {
68    pick! {
69      if #[cfg(target_feature="sse2")] {
70        Self { sse: add_i8_m128i(self.sse, rhs.sse) }
71      } else if #[cfg(target_feature="simd128")] {
72        Self { simd: u8x16_add(self.simd, rhs.simd) }
73      } else if #[cfg(all(target_feature="neon",target_arch="aarch64"))]{
74        unsafe { Self { neon: vaddq_u8(self.neon, rhs.neon) } }
75      } else {
76        Self { arr: [
77          self.arr[0].wrapping_add(rhs.arr[0]),
78          self.arr[1].wrapping_add(rhs.arr[1]),
79          self.arr[2].wrapping_add(rhs.arr[2]),
80          self.arr[3].wrapping_add(rhs.arr[3]),
81          self.arr[4].wrapping_add(rhs.arr[4]),
82          self.arr[5].wrapping_add(rhs.arr[5]),
83          self.arr[6].wrapping_add(rhs.arr[6]),
84          self.arr[7].wrapping_add(rhs.arr[7]),
85          self.arr[8].wrapping_add(rhs.arr[8]),
86          self.arr[9].wrapping_add(rhs.arr[9]),
87          self.arr[10].wrapping_add(rhs.arr[10]),
88          self.arr[11].wrapping_add(rhs.arr[11]),
89          self.arr[12].wrapping_add(rhs.arr[12]),
90          self.arr[13].wrapping_add(rhs.arr[13]),
91          self.arr[14].wrapping_add(rhs.arr[14]),
92          self.arr[15].wrapping_add(rhs.arr[15]),
93        ]}
94      }
95    }
96  }
97}
98
99impl Sub for u8x16 {
100  type Output = Self;
101  #[inline]
102  #[must_use]
103  fn sub(self, rhs: Self) -> Self::Output {
104    pick! {
105      if #[cfg(target_feature="sse2")] {
106        Self { sse: sub_i8_m128i(self.sse, rhs.sse) }
107      } else if #[cfg(target_feature="simd128")] {
108        Self { simd: u8x16_sub(self.simd, rhs.simd) }
109      } else if #[cfg(all(target_feature="neon",target_arch="aarch64"))]{
110        unsafe {Self { neon: vsubq_u8(self.neon, rhs.neon) }}
111      } else {
112        Self { arr: [
113          self.arr[0].wrapping_sub(rhs.arr[0]),
114          self.arr[1].wrapping_sub(rhs.arr[1]),
115          self.arr[2].wrapping_sub(rhs.arr[2]),
116          self.arr[3].wrapping_sub(rhs.arr[3]),
117          self.arr[4].wrapping_sub(rhs.arr[4]),
118          self.arr[5].wrapping_sub(rhs.arr[5]),
119          self.arr[6].wrapping_sub(rhs.arr[6]),
120          self.arr[7].wrapping_sub(rhs.arr[7]),
121          self.arr[8].wrapping_sub(rhs.arr[8]),
122          self.arr[9].wrapping_sub(rhs.arr[9]),
123          self.arr[10].wrapping_sub(rhs.arr[10]),
124          self.arr[11].wrapping_sub(rhs.arr[11]),
125          self.arr[12].wrapping_sub(rhs.arr[12]),
126          self.arr[13].wrapping_sub(rhs.arr[13]),
127          self.arr[14].wrapping_sub(rhs.arr[14]),
128          self.arr[15].wrapping_sub(rhs.arr[15]),
129        ]}
130      }
131    }
132  }
133}
134
135impl Add<u8> for u8x16 {
136  type Output = Self;
137  #[inline]
138  #[must_use]
139  fn add(self, rhs: u8) -> Self::Output {
140    self.add(Self::splat(rhs))
141  }
142}
143
144impl Sub<u8> for u8x16 {
145  type Output = Self;
146  #[inline]
147  #[must_use]
148  fn sub(self, rhs: u8) -> Self::Output {
149    self.sub(Self::splat(rhs))
150  }
151}
152
153impl Add<u8x16> for u8 {
154  type Output = u8x16;
155  #[inline]
156  #[must_use]
157  fn add(self, rhs: u8x16) -> Self::Output {
158    u8x16::splat(self).add(rhs)
159  }
160}
161
162impl Sub<u8x16> for u8 {
163  type Output = u8x16;
164  #[inline]
165  #[must_use]
166  fn sub(self, rhs: u8x16) -> Self::Output {
167    u8x16::splat(self).sub(rhs)
168  }
169}
170
171impl BitAnd for u8x16 {
172  type Output = Self;
173  #[inline]
174  #[must_use]
175  fn bitand(self, rhs: Self) -> Self::Output {
176    pick! {
177      if #[cfg(target_feature="sse2")] {
178        Self { sse: bitand_m128i(self.sse, rhs.sse) }
179      } else if #[cfg(target_feature="simd128")] {
180        Self { simd: v128_and(self.simd, rhs.simd) }
181      } else if #[cfg(all(target_feature="neon",target_arch="aarch64"))]{
182        unsafe {Self { neon: vandq_u8(self.neon, rhs.neon) }}
183      } else {
184        Self { arr: [
185          self.arr[0].bitand(rhs.arr[0]),
186          self.arr[1].bitand(rhs.arr[1]),
187          self.arr[2].bitand(rhs.arr[2]),
188          self.arr[3].bitand(rhs.arr[3]),
189          self.arr[4].bitand(rhs.arr[4]),
190          self.arr[5].bitand(rhs.arr[5]),
191          self.arr[6].bitand(rhs.arr[6]),
192          self.arr[7].bitand(rhs.arr[7]),
193          self.arr[8].bitand(rhs.arr[8]),
194          self.arr[9].bitand(rhs.arr[9]),
195          self.arr[10].bitand(rhs.arr[10]),
196          self.arr[11].bitand(rhs.arr[11]),
197          self.arr[12].bitand(rhs.arr[12]),
198          self.arr[13].bitand(rhs.arr[13]),
199          self.arr[14].bitand(rhs.arr[14]),
200          self.arr[15].bitand(rhs.arr[15]),
201        ]}
202      }
203    }
204  }
205}
206
207impl BitOr for u8x16 {
208  type Output = Self;
209  #[inline]
210  #[must_use]
211  fn bitor(self, rhs: Self) -> Self::Output {
212    pick! {
213      if #[cfg(target_feature="sse2")] {
214        Self { sse: bitor_m128i(self.sse, rhs.sse) }
215      } else if #[cfg(target_feature="simd128")] {
216        Self { simd: v128_or(self.simd, rhs.simd) }
217      } else if #[cfg(all(target_feature="neon",target_arch="aarch64"))]{
218        unsafe {Self { neon: vorrq_u8(self.neon, rhs.neon) }}
219      } else {
220        Self { arr: [
221          self.arr[0].bitor(rhs.arr[0]),
222          self.arr[1].bitor(rhs.arr[1]),
223          self.arr[2].bitor(rhs.arr[2]),
224          self.arr[3].bitor(rhs.arr[3]),
225          self.arr[4].bitor(rhs.arr[4]),
226          self.arr[5].bitor(rhs.arr[5]),
227          self.arr[6].bitor(rhs.arr[6]),
228          self.arr[7].bitor(rhs.arr[7]),
229          self.arr[8].bitor(rhs.arr[8]),
230          self.arr[9].bitor(rhs.arr[9]),
231          self.arr[10].bitor(rhs.arr[10]),
232          self.arr[11].bitor(rhs.arr[11]),
233          self.arr[12].bitor(rhs.arr[12]),
234          self.arr[13].bitor(rhs.arr[13]),
235          self.arr[14].bitor(rhs.arr[14]),
236          self.arr[15].bitor(rhs.arr[15]),
237        ]}
238      }
239    }
240  }
241}
242
243impl BitXor for u8x16 {
244  type Output = Self;
245  #[inline]
246  #[must_use]
247  fn bitxor(self, rhs: Self) -> Self::Output {
248    pick! {
249      if #[cfg(target_feature="sse2")] {
250        Self { sse: bitxor_m128i(self.sse, rhs.sse) }
251      } else if #[cfg(target_feature="simd128")] {
252        Self { simd: v128_xor(self.simd, rhs.simd) }
253      } else if #[cfg(all(target_feature="neon",target_arch="aarch64"))]{
254        unsafe {Self { neon: veorq_u8(self.neon, rhs.neon) }}
255      } else {
256        Self { arr: [
257          self.arr[0].bitxor(rhs.arr[0]),
258          self.arr[1].bitxor(rhs.arr[1]),
259          self.arr[2].bitxor(rhs.arr[2]),
260          self.arr[3].bitxor(rhs.arr[3]),
261          self.arr[4].bitxor(rhs.arr[4]),
262          self.arr[5].bitxor(rhs.arr[5]),
263          self.arr[6].bitxor(rhs.arr[6]),
264          self.arr[7].bitxor(rhs.arr[7]),
265          self.arr[8].bitxor(rhs.arr[8]),
266          self.arr[9].bitxor(rhs.arr[9]),
267          self.arr[10].bitxor(rhs.arr[10]),
268          self.arr[11].bitxor(rhs.arr[11]),
269          self.arr[12].bitxor(rhs.arr[12]),
270          self.arr[13].bitxor(rhs.arr[13]),
271          self.arr[14].bitxor(rhs.arr[14]),
272          self.arr[15].bitxor(rhs.arr[15]),
273        ]}
274      }
275    }
276  }
277}
278
279impl CmpEq for u8x16 {
280  type Output = Self;
281  #[inline]
282  #[must_use]
283  fn cmp_eq(self, rhs: Self) -> Self::Output {
284    Self::cmp_eq(self, rhs)
285  }
286}
287
288impl u8x16 {
289  #[inline]
290  #[must_use]
291  pub const fn new(array: [u8; 16]) -> Self {
292    unsafe { core::mem::transmute(array) }
293  }
294  #[inline]
295  #[must_use]
296  pub fn cmp_eq(self, rhs: Self) -> Self {
297    pick! {
298      if #[cfg(target_feature="sse2")] {
299        Self { sse: cmp_eq_mask_i8_m128i(self.sse, rhs.sse) }
300      } else if #[cfg(target_feature="simd128")] {
301        Self { simd: u8x16_eq(self.simd, rhs.simd) }
302      } else if #[cfg(all(target_feature="neon",target_arch="aarch64"))]{
303        unsafe {Self { neon: vceqq_u8(self.neon, rhs.neon) }}
304      } else {
305        Self { arr: [
306          if self.arr[0] == rhs.arr[0] { u8::MAX } else { 0 },
307          if self.arr[1] == rhs.arr[1] { u8::MAX } else { 0 },
308          if self.arr[2] == rhs.arr[2] { u8::MAX } else { 0 },
309          if self.arr[3] == rhs.arr[3] { u8::MAX } else { 0 },
310          if self.arr[4] == rhs.arr[4] { u8::MAX } else { 0 },
311          if self.arr[5] == rhs.arr[5] { u8::MAX } else { 0 },
312          if self.arr[6] == rhs.arr[6] { u8::MAX } else { 0 },
313          if self.arr[7] == rhs.arr[7] { u8::MAX } else { 0 },
314          if self.arr[8] == rhs.arr[8] { u8::MAX } else { 0 },
315          if self.arr[9] == rhs.arr[9] { u8::MAX } else { 0 },
316          if self.arr[10] == rhs.arr[10] { u8::MAX } else { 0 },
317          if self.arr[11] == rhs.arr[11] { u8::MAX } else { 0 },
318          if self.arr[12] == rhs.arr[12] { u8::MAX } else { 0 },
319          if self.arr[13] == rhs.arr[13] { u8::MAX } else { 0 },
320          if self.arr[14] == rhs.arr[14] { u8::MAX } else { 0 },
321          if self.arr[15] == rhs.arr[15] { u8::MAX } else { 0 },
322        ]}
323      }
324    }
325  }
326  #[inline]
327  #[must_use]
328  pub fn blend(self, t: Self, f: Self) -> Self {
329    pick! {
330      if #[cfg(target_feature="sse4.1")] {
331        Self { sse: blend_varying_i8_m128i(f.sse, t.sse, self.sse) }
332      } else if #[cfg(target_feature="simd128")] {
333        Self { simd: v128_bitselect(t.simd, f.simd, self.simd) }
334      } else if #[cfg(all(target_feature="neon",target_arch="aarch64"))]{
335        unsafe {Self { neon: vbslq_u8(self.neon, t.neon, f.neon) }}
336      } else {
337        generic_bit_blend(self, t, f)
338      }
339    }
340  }
341  #[inline]
342  #[must_use]
343  pub fn max(self, rhs: Self) -> Self {
344    pick! {
345      if #[cfg(target_feature="sse2")] {
346        Self { sse: max_u8_m128i(self.sse, rhs.sse) }
347      } else if #[cfg(target_feature="simd128")] {
348        Self { simd: u8x16_max(self.simd, rhs.simd) }
349      } else if #[cfg(all(target_feature="neon",target_arch="aarch64"))]{
350        unsafe {Self { neon: vmaxq_u8(self.neon, rhs.neon) }}
351      } else {
352        Self { arr: [
353          self.arr[0].max(rhs.arr[0]),
354          self.arr[1].max(rhs.arr[1]),
355          self.arr[2].max(rhs.arr[2]),
356          self.arr[3].max(rhs.arr[3]),
357          self.arr[4].max(rhs.arr[4]),
358          self.arr[5].max(rhs.arr[5]),
359          self.arr[6].max(rhs.arr[6]),
360          self.arr[7].max(rhs.arr[7]),
361          self.arr[8].max(rhs.arr[8]),
362          self.arr[9].max(rhs.arr[9]),
363          self.arr[10].max(rhs.arr[10]),
364          self.arr[11].max(rhs.arr[11]),
365          self.arr[12].max(rhs.arr[12]),
366          self.arr[13].max(rhs.arr[13]),
367          self.arr[14].max(rhs.arr[14]),
368          self.arr[15].max(rhs.arr[15]),
369        ]}
370      }
371    }
372  }
373  #[inline]
374  #[must_use]
375  pub fn min(self, rhs: Self) -> Self {
376    pick! {
377      if #[cfg(target_feature="sse2")] {
378        Self { sse: min_u8_m128i(self.sse, rhs.sse) }
379      } else if #[cfg(target_feature="simd128")] {
380        Self { simd: u8x16_min(self.simd, rhs.simd) }
381      } else if #[cfg(all(target_feature="neon",target_arch="aarch64"))]{
382        unsafe {Self { neon: vminq_u8(self.neon, rhs.neon) }}
383      } else {
384        Self { arr: [
385          self.arr[0].min(rhs.arr[0]),
386          self.arr[1].min(rhs.arr[1]),
387          self.arr[2].min(rhs.arr[2]),
388          self.arr[3].min(rhs.arr[3]),
389          self.arr[4].min(rhs.arr[4]),
390          self.arr[5].min(rhs.arr[5]),
391          self.arr[6].min(rhs.arr[6]),
392          self.arr[7].min(rhs.arr[7]),
393          self.arr[8].min(rhs.arr[8]),
394          self.arr[9].min(rhs.arr[9]),
395          self.arr[10].min(rhs.arr[10]),
396          self.arr[11].min(rhs.arr[11]),
397          self.arr[12].min(rhs.arr[12]),
398          self.arr[13].min(rhs.arr[13]),
399          self.arr[14].min(rhs.arr[14]),
400          self.arr[15].min(rhs.arr[15]),
401        ]}
402      }
403    }
404  }
405
406  #[inline]
407  #[must_use]
408  pub fn saturating_add(self, rhs: Self) -> Self {
409    pick! {
410      if #[cfg(target_feature="sse2")] {
411        Self { sse: add_saturating_u8_m128i(self.sse, rhs.sse) }
412      } else if #[cfg(target_feature="simd128")] {
413        Self { simd: u8x16_add_sat(self.simd, rhs.simd) }
414      } else if #[cfg(all(target_feature="neon",target_arch="aarch64"))]{
415        unsafe {Self { neon: vqaddq_u8(self.neon, rhs.neon) }}
416      } else {
417        Self { arr: [
418          self.arr[0].saturating_add(rhs.arr[0]),
419          self.arr[1].saturating_add(rhs.arr[1]),
420          self.arr[2].saturating_add(rhs.arr[2]),
421          self.arr[3].saturating_add(rhs.arr[3]),
422          self.arr[4].saturating_add(rhs.arr[4]),
423          self.arr[5].saturating_add(rhs.arr[5]),
424          self.arr[6].saturating_add(rhs.arr[6]),
425          self.arr[7].saturating_add(rhs.arr[7]),
426          self.arr[8].saturating_add(rhs.arr[8]),
427          self.arr[9].saturating_add(rhs.arr[9]),
428          self.arr[10].saturating_add(rhs.arr[10]),
429          self.arr[11].saturating_add(rhs.arr[11]),
430          self.arr[12].saturating_add(rhs.arr[12]),
431          self.arr[13].saturating_add(rhs.arr[13]),
432          self.arr[14].saturating_add(rhs.arr[14]),
433          self.arr[15].saturating_add(rhs.arr[15]),
434        ]}
435      }
436    }
437  }
438  #[inline]
439  #[must_use]
440  pub fn saturating_sub(self, rhs: Self) -> Self {
441    pick! {
442      if #[cfg(target_feature="sse2")] {
443        Self { sse: sub_saturating_u8_m128i(self.sse, rhs.sse) }
444      } else if #[cfg(target_feature="simd128")] {
445        Self { simd: u8x16_sub_sat(self.simd, rhs.simd) }
446      } else if #[cfg(all(target_feature="neon",target_arch="aarch64"))]{
447        unsafe { Self { neon: vqsubq_u8(self.neon, rhs.neon) } }
448      } else {
449        Self { arr: [
450          self.arr[0].saturating_sub(rhs.arr[0]),
451          self.arr[1].saturating_sub(rhs.arr[1]),
452          self.arr[2].saturating_sub(rhs.arr[2]),
453          self.arr[3].saturating_sub(rhs.arr[3]),
454          self.arr[4].saturating_sub(rhs.arr[4]),
455          self.arr[5].saturating_sub(rhs.arr[5]),
456          self.arr[6].saturating_sub(rhs.arr[6]),
457          self.arr[7].saturating_sub(rhs.arr[7]),
458          self.arr[8].saturating_sub(rhs.arr[8]),
459          self.arr[9].saturating_sub(rhs.arr[9]),
460          self.arr[10].saturating_sub(rhs.arr[10]),
461          self.arr[11].saturating_sub(rhs.arr[11]),
462          self.arr[12].saturating_sub(rhs.arr[12]),
463          self.arr[13].saturating_sub(rhs.arr[13]),
464          self.arr[14].saturating_sub(rhs.arr[14]),
465          self.arr[15].saturating_sub(rhs.arr[15]),
466        ]}
467      }
468    }
469  }
470
471  /// Unpack and interleave low lanes of two `u8x16`
472  #[inline]
473  #[must_use]
474  pub fn unpack_low(lhs: u8x16, rhs: u8x16) -> u8x16 {
475    pick! {
476        if #[cfg(target_feature = "sse2")] {
477            u8x16 { sse: unpack_low_i8_m128i(lhs.sse, rhs.sse) }
478        } else if #[cfg(target_feature = "simd128")] {
479          u8x16 { simd: u8x16_shuffle::<0, 16, 1, 17, 2, 18, 3, 19, 4, 20, 5, 21, 6, 22, 7, 23>(lhs.simd, rhs.simd) }
480        } else if #[cfg(all(target_feature = "neon", target_arch = "aarch64"))] {
481            let lhs = unsafe { vget_low_u8(lhs.neon) };
482            let rhs = unsafe { vget_low_u8(rhs.neon) };
483
484            let zipped = unsafe { vzip_u8(lhs, rhs) };
485            u8x16 { neon: unsafe { vcombine_u8(zipped.0, zipped.1) } }
486        } else {
487            u8x16::new([
488                lhs.as_array_ref()[0], rhs.as_array_ref()[0],
489                lhs.as_array_ref()[1], rhs.as_array_ref()[1],
490                lhs.as_array_ref()[2], rhs.as_array_ref()[2],
491                lhs.as_array_ref()[3], rhs.as_array_ref()[3],
492                lhs.as_array_ref()[4], rhs.as_array_ref()[4],
493                lhs.as_array_ref()[5], rhs.as_array_ref()[5],
494                lhs.as_array_ref()[6], rhs.as_array_ref()[6],
495                lhs.as_array_ref()[7], rhs.as_array_ref()[7],
496            ])
497        }
498    }
499  }
500
501  /// Unpack and interleave high lanes of two `u8x16`
502  #[inline]
503  #[must_use]
504  pub fn unpack_high(lhs: u8x16, rhs: u8x16) -> u8x16 {
505    pick! {
506        if #[cfg(target_feature = "sse2")] {
507            u8x16 { sse: unpack_high_i8_m128i(lhs.sse, rhs.sse) }
508        } else if #[cfg(target_feature = "simd128")] {
509            u8x16 { simd: u8x16_shuffle::<8, 24, 9, 25, 10, 26, 11, 27, 12, 28, 13, 29, 14, 30, 15, 31>(lhs.simd, rhs.simd) }
510        } else if #[cfg(all(target_feature = "neon", target_arch = "aarch64"))] {
511            let lhs = unsafe { vget_high_u8(lhs.neon) };
512            let rhs = unsafe { vget_high_u8(rhs.neon) };
513
514            let zipped = unsafe { vzip_u8(lhs, rhs) };
515            u8x16 { neon: unsafe { vcombine_u8(zipped.0, zipped.1) } }
516        } else {
517            u8x16::new([
518                lhs.as_array_ref()[8], rhs.as_array_ref()[8],
519                lhs.as_array_ref()[9], rhs.as_array_ref()[9],
520                lhs.as_array_ref()[10], rhs.as_array_ref()[10],
521                lhs.as_array_ref()[11], rhs.as_array_ref()[11],
522                lhs.as_array_ref()[12], rhs.as_array_ref()[12],
523                lhs.as_array_ref()[13], rhs.as_array_ref()[13],
524                lhs.as_array_ref()[14], rhs.as_array_ref()[14],
525                lhs.as_array_ref()[15], rhs.as_array_ref()[15],
526            ])
527        }
528    }
529  }
530
531  /// Pack and saturate two `i16x8` to `u8x16`
532  #[inline]
533  #[must_use]
534  pub fn narrow_i16x8(lhs: i16x8, rhs: i16x8) -> Self {
535    pick! {
536        if #[cfg(target_feature = "sse2")] {
537            u8x16 { sse: pack_i16_to_u8_m128i(lhs.sse, rhs.sse) }
538        } else if #[cfg(target_feature = "simd128")] {
539            u8x16 { simd: u8x16_narrow_i16x8(lhs.simd, rhs.simd) }
540        } else if #[cfg(all(target_feature = "neon", target_arch = "aarch64"))] {
541            let lhs = unsafe { vqmovun_s16(lhs.neon) };
542            let rhs = unsafe { vqmovun_s16(rhs.neon) };
543            u8x16 { neon: unsafe { vcombine_u8(lhs, rhs) } }
544        } else {
545            fn clamp(a: i16) -> u8 {
546                  if a < u8::MIN as i16 {
547                      u8::MIN
548                  } else if a > u8::MAX as i16 {
549                      u8::MAX
550                  } else {
551                      a as u8
552                  }
553            }
554
555            Self { arr: [
556                clamp(lhs.as_array_ref()[0]),
557                clamp(lhs.as_array_ref()[1]),
558                clamp(lhs.as_array_ref()[2]),
559                clamp(lhs.as_array_ref()[3]),
560                clamp(lhs.as_array_ref()[4]),
561                clamp(lhs.as_array_ref()[5]),
562                clamp(lhs.as_array_ref()[6]),
563                clamp(lhs.as_array_ref()[7]),
564                clamp(rhs.as_array_ref()[0]),
565                clamp(rhs.as_array_ref()[1]),
566                clamp(rhs.as_array_ref()[2]),
567                clamp(rhs.as_array_ref()[3]),
568                clamp(rhs.as_array_ref()[4]),
569                clamp(rhs.as_array_ref()[5]),
570                clamp(rhs.as_array_ref()[6]),
571                clamp(rhs.as_array_ref()[7]),
572            ]}
573        }
574    }
575  }
576
577  /// Returns a new vector where each element is based on the index values in
578  /// `rhs`.
579  ///
580  /// * Index values in the range `[0, 15]` select the i-th element of `self`.
581  /// * Index values that are out of range will cause that output lane to be
582  ///   `0`.
583  #[inline]
584  pub fn swizzle(self, rhs: i8x16) -> i8x16 {
585    cast(i8x16::swizzle(cast(self), rhs))
586  }
587
588  /// Works like [`swizzle`](Self::swizzle) with the following additional
589  /// details
590  ///
591  /// * Indices in the range `[0, 15]` will select the i-th element of `self`.
592  /// * If the high bit of any index is set (meaning that the index is
593  ///   negative), then the corresponding output lane is guaranteed to be zero.
594  /// * Otherwise the output lane is either `0` or `self[rhs[i] % 16]`,
595  ///   depending on the implementation.
596  #[inline]
597  pub fn swizzle_relaxed(self, rhs: u8x16) -> u8x16 {
598    cast(i8x16::swizzle_relaxed(cast(self), cast(rhs)))
599  }
600
601  #[inline]
602  #[must_use]
603  pub fn move_mask(self) -> i32 {
604    i8x16::move_mask(cast(self))
605  }
606
607  #[inline]
608  #[must_use]
609  pub fn any(self) -> bool {
610    i8x16::any(cast(self))
611  }
612
613  #[inline]
614  #[must_use]
615  pub fn all(self) -> bool {
616    i8x16::all(cast(self))
617  }
618
619  #[inline]
620  #[must_use]
621  pub fn none(self) -> bool {
622    i8x16::none(cast(self))
623  }
624
625  #[inline]
626  pub fn to_array(self) -> [u8; 16] {
627    cast(self)
628  }
629
630  #[inline]
631  pub fn as_array_ref(&self) -> &[u8; 16] {
632    cast_ref(self)
633  }
634
635  #[inline]
636  pub fn as_array_mut(&mut self) -> &mut [u8; 16] {
637    cast_mut(self)
638  }
639}
wide/u8x16_.rs

wide/
u8x16_.rs
