#[repr(simd)]
pub struct __m256d(_, _, _, _);
Available on x86-64 only.
Expand description

256-bit wide set of four f64 types, x86-specific

This type is the same as the __m256d type defined by Intel, representing a 256-bit SIMD register which internally is consisted of four packed f64 instances. Usage of this type typically corresponds to the avx and up target features for x86/x86_64.

Note that unlike __m256i, the integer version of the 256-bit registers, this __m256d type has one interpretation. Each instance of __m256d always corresponds to f64x4, or four f64 types packed together.

Most intrinsics using __m256d are prefixed with _mm256_ and are suffixed with “pd” (or otherwise contain “pd”). Not to be confused with “ps” which is used for __m256.

Examples

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

let four_zeros = _mm256_setzero_pd();
let four_ones = _mm256_set1_pd(1.0);
let four_floats = _mm256_set_pd(1.0, 2.0, 3.0, 4.0);

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Converts to this type from the input type.

Converts to this type from the input type.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Self must have the same layout as the specified Bits except for the possible invalid bit patterns being checked during is_valid_bit_pattern. Read more

If this function returns true, then it must be valid to reinterpret bits as &Self.

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more

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Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more

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Returns the argument unchanged.

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

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The type returned in the event of a conversion error.

Performs the conversion.

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Performs the conversion.

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