Struct U32x8

pub struct U32x8(/* private fields */);

[u32; 8] as a vector.

Implementations

impl U32x8

pub const fn from_array(arr: [u32; 8]) -> Self

Create a vector from an array.

Unlike the From trait function, the from_array function is const.

Example

const MY_EXTREMELY_FUN_VALUE: U32x8 = U32x8::from_array([0, 1, 2, 3, 4, 5, 6, 7]);
for (i, value) in MY_EXTREMELY_FUN_VALUE.as_array().iter().copied().enumerate() {
    assert_eq!(i as u32, value);
}

Trait Implementations

impl Add for U32x8

fn add(self, rhs: U32x8) -> U32x8

Perform a pairwise wrapping_add

Scalar Equivalent

U32x8::from([
    self.as_array()[0].wrapping_add(rhs.as_array()[0]),
    self.as_array()[1].wrapping_add(rhs.as_array()[1]),
    self.as_array()[2].wrapping_add(rhs.as_array()[2]),
    self.as_array()[3].wrapping_add(rhs.as_array()[3]),
    self.as_array()[4].wrapping_add(rhs.as_array()[4]),
    self.as_array()[5].wrapping_add(rhs.as_array()[5]),
    self.as_array()[6].wrapping_add(rhs.as_array()[6]),
    self.as_array()[7].wrapping_add(rhs.as_array()[7]),
])

AVX2 Intrinsics Used

• _mm256_add_epi32
  • VPADDD ymm, ymm, ymm

Neon Intrinsics Used

• vaddq_u32
  • This intrinsic compiles to the following instructions:
    • ADD Vd.4S,Vn.4S,Vm.4S

type Output = U32x8

The resulting type after applying the + operator.

impl AddAssign for U32x8

fn add_assign(&mut self, other: U32x8)

Performs the += operation.

impl AsMut<[u32]> for U32x8

fn as_mut(&mut self) -> &mut [u32]

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsRef<[u32]> for U32x8

fn as_ref(&self) -> &[u32]

Converts this type into a shared reference of the (usually inferred) input type.

impl BitAnd for U32x8

fn bitand(self, rhs: U32x8) -> U32x8

Perform a pairwise bitwise and

Scalar Equivalent

U32x8::from([
    self.as_array()[0] & rhs.as_array()[0],
    self.as_array()[1] & rhs.as_array()[1],
    self.as_array()[2] & rhs.as_array()[2],
    self.as_array()[3] & rhs.as_array()[3],
    self.as_array()[4] & rhs.as_array()[4],
    self.as_array()[5] & rhs.as_array()[5],
    self.as_array()[6] & rhs.as_array()[6],
    self.as_array()[7] & rhs.as_array()[7],
])

AVX2 Intrinsics Used

• _mm256_and_si256
  • VPAND ymm, ymm, ymm

Neon Intrinsics Used

• vandq_u32
  • This intrinsic compiles to the following instructions:
    • AND Vd.16B,Vn.16B,Vm.16B

type Output = U32x8

The resulting type after applying the & operator.

impl BitAndAssign for U32x8

fn bitand_assign(&mut self, other: U32x8)

Performs the &= operation.

impl BitOr for U32x8

fn bitor(self, rhs: U32x8) -> U32x8

Perform a pairwise bitwise or

Scalar Equivalent

U32x8::from([
    self.as_array()[0] | rhs.as_array()[0],
    self.as_array()[1] | rhs.as_array()[1],
    self.as_array()[2] | rhs.as_array()[2],
    self.as_array()[3] | rhs.as_array()[3],
    self.as_array()[4] | rhs.as_array()[4],
    self.as_array()[5] | rhs.as_array()[5],
    self.as_array()[6] | rhs.as_array()[6],
    self.as_array()[7] | rhs.as_array()[7],
])

AVX2 Intrinsics Used

• _mm256_or_si256
  • VPOR ymm, ymm, ymm

Neon Intrinsics Used

• vorrq_u32
  • This intrinsic compiles to the following instructions:
    • ORR Vd.16B,Vn.16B,Vm.16B

type Output = U32x8

The resulting type after applying the | operator.

impl BitOrAssign for U32x8

fn bitor_assign(&mut self, other: U32x8)

Performs the |= operation.

impl BitXor for U32x8

fn bitxor(self, rhs: U32x8) -> U32x8

Perform a pairwise bitwise xor

Scalar Equivalent

U32x8::from([
    self.as_array()[0] ^ rhs.as_array()[0],
    self.as_array()[1] ^ rhs.as_array()[1],
    self.as_array()[2] ^ rhs.as_array()[2],
    self.as_array()[3] ^ rhs.as_array()[3],
    self.as_array()[4] ^ rhs.as_array()[4],
    self.as_array()[5] ^ rhs.as_array()[5],
    self.as_array()[6] ^ rhs.as_array()[6],
    self.as_array()[7] ^ rhs.as_array()[7],
])

AVX2 Intrinsics Used

• _mm256_xor_si256
  • VPXOR ymm, ymm, ymm

Neon Intrinsics Used

• veorq_u32
  • This intrinsic compiles to the following instructions:
    • EOR Vd.16B,Vn.16B,Vm.16B

type Output = U32x8

The resulting type after applying the ^ operator.

impl BitXorAssign for U32x8

fn bitxor_assign(&mut self, other: U32x8)

Performs the ^= operation.

impl Clone for U32x8

fn clone(&self) -> U32x8

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl ConditionallySelectable for U32x8

fn conditional_select(a: &Self, b: &Self, choice: Choice) -> Self

Select a or b according to choice.

fn conditional_assign(&mut self, other: &Self, choice: Choice)

Conditionally assign other to self, according to choice.

fn conditional_swap(a: &mut Self, b: &mut Self, choice: Choice)

Conditionally swap self and other if choice == 1; otherwise, reassign both unto themselves.

impl ConstantTimeEq for U32x8

fn ct_eq(&self, other: &Self) -> Choice

Determine if two items are equal.

fn ct_ne(&self, other: &Self) -> Choice

Determine if two items are NOT equal.

impl Debug for U32x8

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for U32x8

fn default() -> Self

The zero vector.

impl<'de> Deserialize<'de> for U32x8

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Distribution<U32x8> for Standard

fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> U32x8

Generate a random value of T, using rng as the source of randomness.

fn sample_iter<R>(self, rng: R) -> DistIter<Self, R, T>

where R: Rng, Self: Sized,

Create an iterator that generates random values of T, using rng as the source of randomness.

fn map<F, S>(self, func: F) -> DistMap<Self, F, T, S>

where F: Fn(T) -> S, Self: Sized,

Create a distribution of values of ‘S’ by mapping the output of Self through the closure F

impl ExtendingCast<U16x8> for U32x8

fn extending_cast_from(vector: U16x8) -> U32x8

Scalar Equivalent:

U32x8::from([
        u32::from(vector.as_array()[0]),
        u32::from(vector.as_array()[1]),
        u32::from(vector.as_array()[2]),
        u32::from(vector.as_array()[3]),
        u32::from(vector.as_array()[4]),
        u32::from(vector.as_array()[5]),
        u32::from(vector.as_array()[6]),
        u32::from(vector.as_array()[7]),
])

Avx2

• _mm256_cvtepu16_epi32

  • VPMOVZXWD ymm, xmm

impl ExtendingCast<U8x16> for U32x8

fn extending_cast_from(vector: U8x16) -> U32x8

Scalar Equivalent:

U32x8::from([
        u32::from(vector.as_array()[0]),
        u32::from(vector.as_array()[1]),
        u32::from(vector.as_array()[2]),
        u32::from(vector.as_array()[3]),
        u32::from(vector.as_array()[4]),
        u32::from(vector.as_array()[5]),
        u32::from(vector.as_array()[6]),
        u32::from(vector.as_array()[7]),
])

Avx2

• _mm256_cvtepu8_epi32

  • VPMOVZXBD ymm, xmm

impl From<[U32x4; 2]> for U32x8

fn from(vectors: [U32x4; 2]) -> U32x8

Scalar Equivalent:

let mut out = [0; 8];
out[0..4].copy_from_slice(&vectors[0].as_array());
out[4..].copy_from_slice(&vectors[1].as_array());
U32x8::from(out)

Avx2

• _mm256_set_m128i

  • VINSERTF128 ymm, ymm, xmm, imm8

impl From<[u32; 8]> for U32x8

fn from(arr: [u32; 8]) -> U32x8

Converts to this type from the input type.

impl From<I16x16> for U32x8

fn from(x: I16x16) -> U32x8

This cast is 100% free. It reinterprets the little-endinan bits of I16x16 as little endian bits of U32x8.

impl From<I32x8> for U32x8

fn from(x: I32x8) -> U32x8

This cast is 100% free. It reinterprets the little-endinan bits of I32x8 as little endian bits of U32x8.

impl From<I64x4> for U32x8

fn from(x: I64x4) -> U32x8

This cast is 100% free. It reinterprets the little-endinan bits of I64x4 as little endian bits of U32x8.

impl From<I8x32> for U32x8

fn from(x: I8x32) -> U32x8

This cast is 100% free. It reinterprets the little-endinan bits of I8x32 as little endian bits of U32x8.

impl From<U16x16> for U32x8

fn from(x: U16x16) -> U32x8

This cast is 100% free. It reinterprets the little-endinan bits of U16x16 as little endian bits of U32x8.

impl From<U16x8> for U32x8

fn from(vector: U16x8) -> U32x8

Scalar Equivalent:

U32x8::from([
        u32::from(vector.as_array()[0]),
        u32::from(vector.as_array()[1]),
        u32::from(vector.as_array()[2]),
        u32::from(vector.as_array()[3]),
        u32::from(vector.as_array()[4]),
        u32::from(vector.as_array()[5]),
        u32::from(vector.as_array()[6]),
        u32::from(vector.as_array()[7]),
])

Avx2

• _mm256_cvtepu16_epi32

  • VPMOVZXWD ymm, xmm

impl From<U32x4> for U32x8

fn from(vector: U32x4) -> U32x8

NOTE: this will zero the upper bits of the destination. Other intrinsics are more effcient, but leave the upper bits undefined. At present, these more effcient intrinsics are not exposed.

Scalar Equivalent:

let mut out = [0; 8];
out[0..4].copy_from_slice(&vector.as_array());
U32x8::from(out)

Avx2

• _mm256_zextsi128_si256

impl From<U32x8> for [U32x4; 2]

fn from(vector: U32x8) -> [U32x4; 2]

Scalar Equivalent:

let mut lo = [0; 4];
let mut hi = [0; 4];
lo.copy_from_slice(&vector.as_array()[0..4]);
hi.copy_from_slice(&vector.as_array()[4..]);
[U32x4::from(lo), U32x4::from(hi)]

Avx2

• _mm256_extracti128_si256

  • VEXTRACTI128 xmm, ymm, imm8

impl From<U32x8> for [u32; 8]

fn from(arr: U32x8) -> [u32; 8]

Converts to this type from the input type.

impl From<U32x8> for I16x16

fn from(x: U32x8) -> I16x16

This cast is 100% free. It reinterprets the little-endinan bits of U32x8 as little endian bits of I16x16.

impl From<U32x8> for I32x8

fn from(x: U32x8) -> I32x8

This cast is 100% free. It reinterprets the little-endinan bits of U32x8 as little endian bits of I32x8.

impl From<U32x8> for I64x4

fn from(x: U32x8) -> I64x4

This cast is 100% free. It reinterprets the little-endinan bits of U32x8 as little endian bits of I64x4.

impl From<U32x8> for I8x32

fn from(x: U32x8) -> I8x32

This cast is 100% free. It reinterprets the little-endinan bits of U32x8 as little endian bits of I8x32.

impl From<U32x8> for U16x16

fn from(x: U32x8) -> U16x16

This cast is 100% free. It reinterprets the little-endinan bits of U32x8 as little endian bits of U16x16.

impl From<U32x8> for U64x4

fn from(x: U32x8) -> U64x4

This cast is 100% free. It reinterprets the little-endinan bits of U32x8 as little endian bits of U64x4.

impl From<U32x8> for U8x32

fn from(x: U32x8) -> U8x32

This cast is 100% free. It reinterprets the little-endinan bits of U32x8 as little endian bits of U8x32.

impl From<U64x4> for U32x8

fn from(x: U64x4) -> U32x8

This cast is 100% free. It reinterprets the little-endinan bits of U64x4 as little endian bits of U32x8.

impl From<U8x32> for U32x8

fn from(x: U8x32) -> U32x8

This cast is 100% free. It reinterprets the little-endinan bits of U8x32 as little endian bits of U32x8.

impl Hash for U32x8

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for U32x8

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for U32x8

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Shl<u64> for U32x8

fn shl(self, amount: u64) -> U32x8

Scalar Equivalent:

if amount >= 32 {
    U32x8::ZERO
} else {
    U32x8::from([
        self.as_array()[0] << amount,
        self.as_array()[1] << amount,
        self.as_array()[2] << amount,
        self.as_array()[3] << amount,
        self.as_array()[4] << amount,
        self.as_array()[5] << amount,
        self.as_array()[6] << amount,
        self.as_array()[7] << amount,
    ])
}

Avx2

• _mm256_sll_epi32

  • VPSLLD ymm, ymm, xmm

• _mm_set_epi64x

  Instruction sequence.

type Output = U32x8

The resulting type after applying the << operator.

impl Shl for U32x8

fn shl(self, amount: U32x8) -> U32x8

Scalar Equivalent:

let mut out = self.as_array();
for (x, amm) in out.iter_mut().zip(amount.as_array().iter().copied()) {
    *x = if (0..32).contains(&amm) {
        *x << amm
    }  else {
        0
    };
}
U32x8::from(out)

Avx2

• _mm256_sllv_epi32

  • VPSLLVD ymm, ymm, ymm

type Output = U32x8

The resulting type after applying the << operator.

impl ShlAssign<u64> for U32x8

fn shl_assign(&mut self, amount: u64)

Performs the <<= operation.

impl ShlAssign for U32x8

fn shl_assign(&mut self, amount: U32x8)

Performs the <<= operation.

impl Shr<u64> for U32x8

fn shr(self, amount: u64) -> U32x8

Scalar Equivalent:

if amount >= 32 {
    U32x8::ZERO
} else {
    U32x8::from([
        self.as_array()[0] >> amount,
        self.as_array()[1] >> amount,
        self.as_array()[2] >> amount,
        self.as_array()[3] >> amount,
        self.as_array()[4] >> amount,
        self.as_array()[5] >> amount,
        self.as_array()[6] >> amount,
        self.as_array()[7] >> amount,
    ])
}

Avx2

• _mm256_srl_epi32

  • VPSRLD ymm, ymm, xmm

• _mm_set_epi64x

  Instruction sequence.

type Output = U32x8

The resulting type after applying the >> operator.

impl Shr for U32x8

fn shr(self, amount: U32x8) -> U32x8

Scalar Equivalent:

let mut out = self.as_array();
for (x, amm) in out.iter_mut().zip(amount.as_array().iter().copied()) {
    *x = if (0..32).contains(&amm) {
        *x >> amm
    }  else {
        0
    };
}
U32x8::from(out)

Avx2

• _mm256_srlv_epi32

  • VPSRLVD ymm, ymm, ymm

type Output = U32x8

The resulting type after applying the >> operator.

impl ShrAssign<u64> for U32x8

fn shr_assign(&mut self, amount: u64)

Performs the >>= operation.

impl ShrAssign for U32x8

fn shr_assign(&mut self, amount: U32x8)

Performs the >>= operation.

impl SimdBase for U32x8

fn is_zero(&self) -> bool

Scalar Equivalent:

self.as_array().iter().all(|x| *x == 0)

Avx2

• _mm256_testz_si256

  • VPTEST ymm, ymm

fn set_lo(scalar: u32) -> U32x8

Scalar Equivalent:

let mut out = [0; 8];
out[0] = scalar;
U32x8::from(out)

Avx2

• _mm256_set_epi32

  Instruction sequence.

fn extract<const I: usize>(&self) -> u32

Scalar Equivalent:

self.as_array()[I]

Avx2

• _mm256_extract_epi32

  Instruction sequence.

fn broadcast(scalar: u32) -> U32x8

Scalar Equivalent:

U32x8::from([scalar; 8])

Avx2

• _mm256_set1_epi32

  Instruction sequence.

fn broadcast_lo(vector: U32x4) -> U32x8

Scalar Equivalent:

U32x8::from([vector.as_array()[0]; 8])

Avx2

• _mm256_broadcastd_epi32

  • VPBROADCASTD ymm, xmm

fn cmp_eq(&self, other: U32x8) -> U32x8

Scalar Equivalent:

U32x8::from([
    if self.as_array()[0] == other.as_array()[0] {  u32::MAX  } else { 0 },
    if self.as_array()[1] == other.as_array()[1] {  u32::MAX  } else { 0 },
    if self.as_array()[2] == other.as_array()[2] {  u32::MAX  } else { 0 },
    if self.as_array()[3] == other.as_array()[3] {  u32::MAX  } else { 0 },
    if self.as_array()[4] == other.as_array()[4] {  u32::MAX  } else { 0 },
    if self.as_array()[5] == other.as_array()[5] {  u32::MAX  } else { 0 },
    if self.as_array()[6] == other.as_array()[6] {  u32::MAX  } else { 0 },
    if self.as_array()[7] == other.as_array()[7] {  u32::MAX  } else { 0 },
])

Avx2

• _mm256_cmpeq_epi32

  • VPCMPEQD ymm, ymm, ymm

fn and_not(&self, other: U32x8) -> U32x8

Scalar Equivalent:

U32x8::from([
    self.as_array()[0] & (!other.as_array()[0]),
    self.as_array()[1] & (!other.as_array()[1]),
    self.as_array()[2] & (!other.as_array()[2]),
    self.as_array()[3] & (!other.as_array()[3]),
    self.as_array()[4] & (!other.as_array()[4]),
    self.as_array()[5] & (!other.as_array()[5]),
    self.as_array()[6] & (!other.as_array()[6]),
    self.as_array()[7] & (!other.as_array()[7]),
])

Avx2

• _mm256_andnot_si256

  • VPANDN ymm, ymm, ymm

fn cmp_gt(&self, other: U32x8) -> U32x8

Scalar Equivalent:

U32x8::from([
    if self.as_array()[0] > other.as_array()[0] {  u32::MAX  } else { 0 },
    if self.as_array()[1] > other.as_array()[1] {  u32::MAX  } else { 0 },
    if self.as_array()[2] > other.as_array()[2] {  u32::MAX  } else { 0 },
    if self.as_array()[3] > other.as_array()[3] {  u32::MAX  } else { 0 },
    if self.as_array()[4] > other.as_array()[4] {  u32::MAX  } else { 0 },
    if self.as_array()[5] > other.as_array()[5] {  u32::MAX  } else { 0 },
    if self.as_array()[6] > other.as_array()[6] {  u32::MAX  } else { 0 },
    if self.as_array()[7] > other.as_array()[7] {  u32::MAX  } else { 0 },
])

Avx2

NOTE: this implementation uses an efficient vector polyfill, though this operation is not natively supported.

// Based on https://stackoverflow.com/a/33173643 and https://git.io/JmghK
let sign_bit = Self::broadcast(1 << 31);
Self::from(I32x8::from(*self ^ sign_bit).cmp_gt(
    I32x8::from(other ^ sign_bit)
))

fn shift_left<const BITS: usize>(&self) -> U32x8

Scalar Equivalent:

let mut out = self.as_array();
for x in out.iter_mut() {
    *x <<= BITS;
}
U32x8::from(out)

Avx2

• _mm256_slli_epi32

  • VPSLLD ymm, ymm, imm8

fn shift_right<const BITS: usize>(&self) -> U32x8

Scalar Equivalent:

let mut out = self.as_array();
for x in out.iter_mut() {
    *x >>= BITS;
}
U32x8::from(out)

Avx2

• _mm256_srli_epi32

  • VPSRLD ymm, ymm, imm8

fn unpack_lo(&self, other: U32x8) -> U32x8

Scalar Equivalent:

U32x8::from([
    // Lane# 0
    self.as_array()[0],
    other.as_array()[0],
    self.as_array()[1],
    other.as_array()[1],
    // Lane# 1
    self.as_array()[4],
    other.as_array()[4],
    self.as_array()[5],
    other.as_array()[5],
])

Avx2

• _mm256_unpacklo_epi32

  • VPUNPCKLDQ ymm, ymm, ymm

fn unpack_hi(&self, other: U32x8) -> U32x8

Scalar Equivalent:

U32x8::from([
    // Lane# 0
    self.as_array()[2],
    other.as_array()[2],
    self.as_array()[3],
    other.as_array()[3],
    // Lane# 1
    self.as_array()[6],
    other.as_array()[6],
    self.as_array()[7],
    other.as_array()[7],
])

Avx2

• _mm256_unpackhi_epi32

  • VPUNPCKHDQ ymm, ymm, ymm

fn max(&self, other: U32x8) -> U32x8

Scalar Equivalent:

U32x8::from([
    self.as_array()[0].max(other.as_array()[0]),
    self.as_array()[1].max(other.as_array()[1]),
    self.as_array()[2].max(other.as_array()[2]),
    self.as_array()[3].max(other.as_array()[3]),
    self.as_array()[4].max(other.as_array()[4]),
    self.as_array()[5].max(other.as_array()[5]),
    self.as_array()[6].max(other.as_array()[6]),
    self.as_array()[7].max(other.as_array()[7]),
])

Avx2

• _mm256_max_epu32

  • VPMAXUD ymm, ymm, ymm

fn min(&self, other: U32x8) -> U32x8

Scalar Equivalent:

U32x8::from([
    self.as_array()[0].min(other.as_array()[0]),
    self.as_array()[1].min(other.as_array()[1]),
    self.as_array()[2].min(other.as_array()[2]),
    self.as_array()[3].min(other.as_array()[3]),
    self.as_array()[4].min(other.as_array()[4]),
    self.as_array()[5].min(other.as_array()[5]),
    self.as_array()[6].min(other.as_array()[6]),
    self.as_array()[7].min(other.as_array()[7]),
])

Avx2

• _mm256_min_epu32

  • VPMINUD ymm, ymm, ymm

const LANES: usize = 8usize

The number of elements of this vector.

const ZERO: Self

A vector where every element is zero.

type Scalar = u32

The scalar that this value holds.

type Array = [u32; 8]

The equivalent array type of this vector.

type Signed = I32x8

The signed version of this vector.

type Unsigned = U32x8

The unsigned version of this vector.

type BroadcastLoInput = U32x4

A vector of [Self::Scalar; 128 / (8 * std::mem::size_of::<Self::Scalar>())]

fn as_array(&self) -> Self::Array

Convert the vector to an array.

impl SimdBase32 for U32x8

fn shuffle<const I3: usize, const I2: usize, const I1: usize, const I0: usize>( &self, ) -> U32x8

Scalar Equivalent:

U32x8::from([
    // 128-bit Lane #0
    self.as_array()[I0 + 0 * 4],
    self.as_array()[I1 + 0 * 4],
    self.as_array()[I2 + 0 * 4],
    self.as_array()[I3 + 0 * 4],
    // 128-bit Lane #1
    self.as_array()[I0 + 1 * 4],
    self.as_array()[I1 + 1 * 4],
    self.as_array()[I2 + 1 * 4],
    self.as_array()[I3 + 1 * 4],
])

Avx2

• _mm256_shuffle_epi32

  • VPSHUFD ymm, ymm, imm8

impl SimdBase8x for U32x8

fn blend<const B7: bool, const B6: bool, const B5: bool, const B4: bool, const B3: bool, const B2: bool, const B1: bool, const B0: bool>( &self, if_true: U32x8, ) -> U32x8

Scalar Equivalent:

U32x8::from([
        (if B0 { if_true } else { *self }).as_array()[0],
        (if B1 { if_true } else { *self }).as_array()[1],
        (if B2 { if_true } else { *self }).as_array()[2],
        (if B3 { if_true } else { *self }).as_array()[3],
        (if B4 { if_true } else { *self }).as_array()[4],
        (if B5 { if_true } else { *self }).as_array()[5],
        (if B6 { if_true } else { *self }).as_array()[6],
        (if B7 { if_true } else { *self }).as_array()[7],
])

Avx2

• _mm256_blend_epi32

  • VPBLENDD ymm, ymm, ymm, imm8

impl SimdBaseGatherable<I32x8> for U32x8

Safety

base does not need to be aligned. Forall i, base + indices[i] must meet the safety requirements of std::ptr::read_unaligned

unsafe fn gather(base: *const u32, indices: I32x8) -> U32x8

Scalar Equivalent:

U32x8::from([
    base.offset(indices.as_array()[0] as isize).read_unaligned(),
    base.offset(indices.as_array()[1] as isize).read_unaligned(),
    base.offset(indices.as_array()[2] as isize).read_unaligned(),
    base.offset(indices.as_array()[3] as isize).read_unaligned(),
    base.offset(indices.as_array()[4] as isize).read_unaligned(),
    base.offset(indices.as_array()[5] as isize).read_unaligned(),
    base.offset(indices.as_array()[6] as isize).read_unaligned(),
    base.offset(indices.as_array()[7] as isize).read_unaligned(),
])

Avx2

• _mm256_i32gather_epi32

  • VPGATHERDD ymm, vm32x, ymm

unsafe fn gather_masked( base: *const u32, indices: I32x8, mask: U32x8, src: U32x8, ) -> U32x8

Scalar Equivalent:

U32x8::from([
    if (mask.as_array()[0] >> 31) == 1 {
        base.offset(indices.as_array()[0] as isize).read_unaligned()
    } else {
        src.as_array()[0]
    },
    if (mask.as_array()[1] >> 31) == 1 {
        base.offset(indices.as_array()[1] as isize).read_unaligned()
    } else {
        src.as_array()[1]
    },
    if (mask.as_array()[2] >> 31) == 1 {
        base.offset(indices.as_array()[2] as isize).read_unaligned()
    } else {
        src.as_array()[2]
    },
    if (mask.as_array()[3] >> 31) == 1 {
        base.offset(indices.as_array()[3] as isize).read_unaligned()
    } else {
        src.as_array()[3]
    },
    if (mask.as_array()[4] >> 31) == 1 {
        base.offset(indices.as_array()[4] as isize).read_unaligned()
    } else {
        src.as_array()[4]
    },
    if (mask.as_array()[5] >> 31) == 1 {
        base.offset(indices.as_array()[5] as isize).read_unaligned()
    } else {
        src.as_array()[5]
    },
    if (mask.as_array()[6] >> 31) == 1 {
        base.offset(indices.as_array()[6] as isize).read_unaligned()
    } else {
        src.as_array()[6]
    },
    if (mask.as_array()[7] >> 31) == 1 {
        base.offset(indices.as_array()[7] as isize).read_unaligned()
    } else {
        src.as_array()[7]
    },
])

Avx2

• _mm256_mask_i32gather_epi32

  • VPGATHERDD ymm, vm32x, ymm

impl Sub for U32x8

fn sub(self, rhs: U32x8) -> U32x8

Perform a pairwise wrapping_sub

Scalar Equivalent

U32x8::from([
    self.as_array()[0].wrapping_sub(rhs.as_array()[0]),
    self.as_array()[1].wrapping_sub(rhs.as_array()[1]),
    self.as_array()[2].wrapping_sub(rhs.as_array()[2]),
    self.as_array()[3].wrapping_sub(rhs.as_array()[3]),
    self.as_array()[4].wrapping_sub(rhs.as_array()[4]),
    self.as_array()[5].wrapping_sub(rhs.as_array()[5]),
    self.as_array()[6].wrapping_sub(rhs.as_array()[6]),
    self.as_array()[7].wrapping_sub(rhs.as_array()[7]),
])

AVX2 Intrinsics Used

• _mm256_sub_epi32
  • VPSUBD ymm, ymm, ymm

Neon Intrinsics Used

• vsubq_u32
  • This intrinsic compiles to the following instructions:
    • SUB Vd.4S,Vn.4S,Vm.4S

type Output = U32x8

The resulting type after applying the - operator.

impl SubAssign for U32x8

fn sub_assign(&mut self, other: U32x8)

Performs the -= operation.

impl Zeroable for U32x8

fn zeroed() -> Self

Calls zeroed.

impl Copy for U32x8

impl Eq for U32x8

impl Pod for U32x8