#[repr(simd)]
pub struct __m128i(_, _);
This is supported on x86-64 only.
128-bit wide integer vector type, x86-specific
This type is the same as the __m128i type defined by Intel,
representing a 128-bit SIMD register. Usage of this type typically
corresponds to the sse and up target features for x86/x86_64.
Internally this type may be viewed as:
i8x16 - sixteen i8 variables packed togetheri16x8 - eight i16 variables packed togetheri32x4 - four i32 variables packed togetheri64x2 - two 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 __m128i typically just means
a "bag of bits" which is left up to interpretation at the point of use.
Most intrinsics using __m128i are prefixed with _mm_ and the
integer types tend to correspond to suffixes like "epi8" or "epi32".
#[cfg(target_arch = "x86")]
use std::arch::x86::*;
#[cfg(target_arch = "x86_64")]
use std::arch::x86_64::*;
let all_bytes_zero = _mm_setzero_si128();
let all_bytes_one = _mm_set1_epi8(1);
let four_i32 = _mm_set_epi32(1, 2, 3, 4);Run
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.
🔬 This is a nightly-only experimental API. (
stdsimd #48556)
Safe lossless bitwise from T to Self.