pub struct __m256i(_, _, _, _);
Available on non-crate feature miri-test-libstd
and 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.
#[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);
Performs copy-assignment from
source
.
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Formats the value using the given formatter.
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Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Immutably borrows from an owned value.
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Mutably borrows from an owned value.
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Returns the argument unchanged.
Instruments this type with the provided [
Span
], returning an
Instrumented
wrapper.
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Calls U::from(self)
.
That is, this conversion is whatever the implementation of
From<T> for U
chooses to do.
The alignment of pointer.
The type for initializers.
Initializes a with the given initializer.
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Mutably dereferences the given pointer.
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Drops the object pointed to by the given pointer.
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The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning.
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Uses borrowed data to replace owned data, usually by cloning.
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The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.