#[repr(simd)]pub struct __m128(/* private fields */);
Available on x86-64 only.
Expand description
128-bit wide set of four f32
types, x86-specific
This type is the same as the __m128
type defined by Intel,
representing a 128-bit SIMD register which internally is consisted of
four packed f32
instances. Usage of this type typically corresponds
to the sse
and up target features for x86/x86_64.
Note that unlike __m128i
, the integer version of the 128-bit
registers, this __m128
type has one interpretation. Each instance
of __m128
always corresponds to f32x4
, or four f32
types packed
together.
Most intrinsics using __m128
are prefixed with _mm_
and are
suffixed with “ps” (or otherwise contain “ps”). Not to be confused with
“pd” which is used for __m128d
.
§Examples
#[cfg(target_arch = "x86")]
use std::arch::x86::*;
#[cfg(target_arch = "x86_64")]
use std::arch::x86_64::*;
let four_zeros = _mm_setzero_ps();
let four_ones = _mm_set1_ps(1.0);
let four_floats = _mm_set_ps(1.0, 2.0, 3.0, 4.0);
Trait Implementations§
source§impl AsBytes for __m128
impl AsBytes for __m128
source§impl FromBytes for __m128
impl FromBytes for __m128
source§fn slice_from_prefix(bytes: &[u8], count: usize) -> Option<(&[Self], &[u8])>where
Self: Sized,
fn slice_from_prefix(bytes: &[u8], count: usize) -> Option<(&[Self], &[u8])>where
Self: Sized,
Interprets the prefix of the given
bytes
as a &[Self]
with length
equal to count
without copying. Read moresource§fn slice_from_suffix(bytes: &[u8], count: usize) -> Option<(&[u8], &[Self])>where
Self: Sized,
fn slice_from_suffix(bytes: &[u8], count: usize) -> Option<(&[u8], &[Self])>where
Self: Sized,
Interprets the suffix of the given
bytes
as a &[Self]
with length
equal to count
without copying. Read moresource§fn mut_slice_from_prefix(
bytes: &mut [u8],
count: usize
) -> Option<(&mut [Self], &mut [u8])>
fn mut_slice_from_prefix( bytes: &mut [u8], count: usize ) -> Option<(&mut [Self], &mut [u8])>
Interprets the prefix of the given
bytes
as a &mut [Self]
with length
equal to count
without copying. Read moresource§fn mut_slice_from_suffix(
bytes: &mut [u8],
count: usize
) -> Option<(&mut [u8], &mut [Self])>
fn mut_slice_from_suffix( bytes: &mut [u8], count: usize ) -> Option<(&mut [u8], &mut [Self])>
Interprets the suffix of the given
bytes
as a &mut [Self]
with length
equal to count
without copying. Read moresource§impl FromZeroes for __m128
impl FromZeroes for __m128
impl Copy for __m128
Auto Trait Implementations§
impl Freeze for __m128
impl RefUnwindSafe for __m128
impl Send for __m128
impl Sync for __m128
impl Unpin for __m128
impl UnwindSafe for __m128
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
source§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
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
.source§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Convert
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
.source§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s.source§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.source§impl<T> DowncastSync for T
impl<T> DowncastSync for T
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read more