Struct core::arch::x86::__m256i

1.27.0 · source ·
#[repr(simd)]
pub struct __m256i(_, _, _, _);
Available on x86 and (x86 or x86-64) only.
Expand description

256-bit wide integer vector type, x86-specific

This type is the same as the __m256i type defined by Intel, representing a 256-bit SIMD register. Usage of this type typically corresponds to the avx and up target features for x86/x86_64.

Internally this type may be viewed as:

  • i8x32 - thirty two i8 variables packed together
  • i16x16 - sixteen i16 variables packed together
  • i32x8 - eight i32 variables packed together
  • i64x4 - four i64 variables packed together

(as well as unsigned versions). Each intrinsic may interpret the internal bits differently, check the documentation of the intrinsic to see how it’s being used.

Note that this means that an instance of __m256i typically just means a “bag of bits” which is left up to interpretation at the point of use.

Examples

#[cfg(target_arch = "x86")]
use std::arch::x86::*;
#[cfg(target_arch = "x86_64")]
use std::arch::x86_64::*;

let all_bytes_zero = _mm256_setzero_si256();
let all_bytes_one = _mm256_set1_epi8(1);
let eight_i32 = _mm256_set_epi32(1, 2, 3, 4, 5, 6, 7, 8);
Run

Trait Implementations§

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impl Clone for __m256i

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fn clone(&self) -> __m256i

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
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impl Debug for __m256i

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

Formats the value using the given formatter. Read more
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impl From<Simd<i16, 16>> for __m256i

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fn from(value: i16x16) -> __m256i

Converts to this type from the input type.
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impl From<Simd<i32, 8>> for __m256i

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fn from(value: i32x8) -> __m256i

Converts to this type from the input type.
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impl From<Simd<i64, 4>> for __m256i

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fn from(value: i64x4) -> __m256i

Converts to this type from the input type.
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impl From<Simd<i8, 32>> for __m256i

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fn from(value: i8x32) -> __m256i

Converts to this type from the input type.
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impl From<Simd<isize, 4>> for __m256i

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fn from(value: isizex4) -> __m256i

Converts to this type from the input type.
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impl From<Simd<u16, 16>> for __m256i

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fn from(value: u16x16) -> __m256i

Converts to this type from the input type.
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impl From<Simd<u32, 8>> for __m256i

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fn from(value: u32x8) -> __m256i

Converts to this type from the input type.
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impl From<Simd<u64, 4>> for __m256i

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fn from(value: u64x4) -> __m256i

Converts to this type from the input type.
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impl From<Simd<u8, 32>> for __m256i

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fn from(value: u8x32) -> __m256i

Converts to this type from the input type.
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impl From<Simd<usize, 4>> for __m256i

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fn from(value: usizex4) -> __m256i

Converts to this type from the input type.
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impl From<__m256i> for i16x16

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fn from(value: __m256i) -> i16x16

Converts to this type from the input type.
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impl From<__m256i> for i32x8

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fn from(value: __m256i) -> i32x8

Converts to this type from the input type.
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impl From<__m256i> for i64x4

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fn from(value: __m256i) -> i64x4

Converts to this type from the input type.
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impl From<__m256i> for i8x32

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fn from(value: __m256i) -> i8x32

Converts to this type from the input type.
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impl From<__m256i> for isizex4

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fn from(value: __m256i) -> isizex4

Converts to this type from the input type.
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impl From<__m256i> for u16x16

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fn from(value: __m256i) -> u16x16

Converts to this type from the input type.
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impl From<__m256i> for u32x8

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fn from(value: __m256i) -> u32x8

Converts to this type from the input type.
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impl From<__m256i> for u64x4

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fn from(value: __m256i) -> u64x4

Converts to this type from the input type.
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impl From<__m256i> for u8x32

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fn from(value: __m256i) -> u8x32

Converts to this type from the input type.
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impl From<__m256i> for usizex4

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fn from(value: __m256i) -> usizex4

Converts to this type from the input type.
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impl Copy for __m256i

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere
    T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere
    T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere
    T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere
    U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for Twhere
    U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere
    U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.