}
}
-/// Calls a the macro `$mac` with the provided `$args` followed by `$repeat` repeated the specified
-/// number of times.
-macro_rules! call_repeat {
- { 1 => $mac:path [$($repeat:tt)*] $($args:tt)* } => {
- $mac! {
- $($args)*
- $($repeat)*
- }
- };
- { 2 => $mac:path [$($repeat:tt)*] $($args:tt)* } => {
- $mac! {
- $($args)*
- $($repeat)* $($repeat)*
- }
- };
- { 4 => $mac:path [$($repeat:tt)*] $($args:tt)* } => {
- $mac! {
- $($args)*
- $($repeat)* $($repeat)* $($repeat)* $($repeat)*
- }
- };
- { 8 => $mac:path [$($repeat:tt)*] $($args:tt)* } => {
- $mac! {
- $($args)*
- $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)*
- }
- };
- { 16 => $mac:path [$($repeat:tt)*] $($args:tt)* } => {
- $mac! {
- $($args)*
- $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)*
- $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)*
- }
- };
- { 32 => $mac:path [$($repeat:tt)*] $($args:tt)* } => {
- $mac! {
- $($args)*
- $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)*
- $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)*
- $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)*
- $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)*
- }
- };
- { 64 => $mac:path [$($repeat:tt)*] $($args:tt)* } => {
- $mac! {
- $($args)*
- $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)*
- $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)*
- $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)*
- $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)*
- $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)*
- $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)*
- $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)*
- $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)* $($repeat)*
- }
- };
-}
+/// Implements common traits on the specified vector `$name`, holding multiple `$lanes` of `$type`.
+macro_rules! impl_vector {
+ { $name:ident, $type:ty } => {
+ impl<const LANES: usize> $name<LANES> where Self: crate::LanesAtMost64 {
+ /// Construct a SIMD vector by setting all lanes to the given value.
+ pub const fn splat(value: $type) -> Self {
+ Self([value; LANES])
+ }
-/// Calls the macro `$mac` with the specified `$args` followed by the specified number of unique
-/// identifiers.
-macro_rules! call_counting_args {
- { 1 => $mac:path => $($args:tt)* } => {
- $mac! {
- $($args)*
- value
- }
- };
- { 2 => $mac:path => $($args:tt)* } => {
- $mac! {
- $($args)*
- v0 v1
- }
- };
- { 4 => $mac:path => $($args:tt)* } => {
- $mac! {
- $($args)*
- v0 v1 v2 v3
- }
- };
- { 8 => $mac:path => $($args:tt)* } => {
- $mac! {
- $($args)*
- v0 v1 v2 v3 v4 v5 v6 v7
- }
- };
- { 16 => $mac:path => $($args:tt)* } => {
- $mac! {
- $($args)*
- v0 v1 v2 v3 v4 v5 v6 v7 v8 v9 v10 v11 v12 v13 v14 v15
- }
- };
- { 32 => $mac:path => $($args:tt)* } => {
- $mac! {
- $($args)*
- v0 v1 v2 v3 v4 v5 v6 v7 v8 v9 v10 v11 v12 v13 v14 v15
- v16 v17 v18 v19 v20 v21 v22 v23 v24 v25 v26 v27 v28 v29 v30 v31
- }
- };
- { 64 => $mac:path => $($args:tt)* } => {
- $mac! {
- $($args)*
- v0 v1 v2 v3 v4 v5 v6 v7 v8 v9 v10 v11 v12 v13 v14 v15
- v16 v17 v18 v19 v20 v21 v22 v23 v24 v25 v26 v27 v28 v29 v30 v31
- v32 v33 v34 v35 v36 v37 v38 v39 v40 v41 v42 v43 v44 v45 v46 v47
- v48 v49 v50 v51 v52 v53 v54 v55 v56 v57 v58 v59 v60 v61 v62 v63
- }
- };
-}
+ /// Returns a slice containing the entire SIMD vector.
+ pub const fn as_slice(&self) -> &[$type] {
+ &self.0
+ }
-/// Calls the macro `$mac` with the specified `$args` followed by counting values from 0 to the
-/// specified value.
-macro_rules! call_counting_values {
- { 1 => $mac:path => $($args:tt)* } => {
- $mac! {
- $($args)*
- 0
- }
- };
- { 2 => $mac:path => $($args:tt)* } => {
- $mac! {
- $($args)*
- 0 1
- }
- };
- { 4 => $mac:path => $($args:tt)* } => {
- $mac! {
- $($args)*
- 0 1 2 3
+ /// Returns a mutable slice containing the entire SIMD vector.
+ pub fn as_mut_slice(&mut self) -> &mut [$type] {
+ &mut self.0
+ }
+
+ /// Converts an array to a SIMD vector.
+ pub const fn from_array(array: [$type; LANES]) -> Self {
+ Self(array)
+ }
+
+ /// Converts a SIMD vector to an array.
+ pub const fn to_array(self) -> [$type; LANES] {
+ // workaround for rust-lang/rust#80108
+ // TODO fix this
+ #[cfg(target_arch = "wasm32")]
+ {
+ let mut arr = [self.0[0]; LANES];
+ let mut i = 0;
+ while i < LANES {
+ arr[i] = self.0[i];
+ i += 1;
+ }
+ arr
+ }
+
+ #[cfg(not(target_arch = "wasm32"))]
+ {
+ self.0
+ }
+ }
}
- };
- { 8 => $mac:path => $($args:tt)* } => {
- $mac! {
- $($args)*
- 0 1 2 3 4 5 6 7
+
+ impl<const LANES: usize> Copy for $name<LANES> where Self: crate::LanesAtMost64 {}
+
+ impl<const LANES: usize> Clone for $name<LANES> where Self: crate::LanesAtMost64 {
+ #[inline]
+ fn clone(&self) -> Self {
+ *self
+ }
}
- };
- { 16 => $mac:path => $($args:tt)* } => {
- $mac! {
- $($args)*
- 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
+
+ impl<const LANES: usize> Default for $name<LANES> where Self: crate::LanesAtMost64 {
+ #[inline]
+ fn default() -> Self {
+ Self::splat(<$type>::default())
+ }
}
- };
- { 32 => $mac:path => $($args:tt)* } => {
- $mac! {
- $($args)*
- 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
- 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
+
+ impl<const LANES: usize> PartialEq for $name<LANES> where Self: crate::LanesAtMost64 {
+ #[inline]
+ fn eq(&self, other: &Self) -> bool {
+ // TODO use SIMD equality
+ self.to_array() == other.to_array()
+ }
}
- };
- { 64 => $mac:path => $($args:tt)* } => {
- $mac! {
- $($args)*
- 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
- 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
- 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
- 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
+
+ impl<const LANES: usize> PartialOrd for $name<LANES> where Self: crate::LanesAtMost64 {
+ #[inline]
+ fn partial_cmp(&self, other: &Self) -> Option<core::cmp::Ordering> {
+ // TODO use SIMD equalitya
+ self.to_array().partial_cmp(other.as_ref())
+ }
}
- };
-}
-/// Implements common traits on the specified vector `$name`, holding multiple `$lanes` of `$type`.
-macro_rules! base_vector_traits {
- { $name:path => [$type:ty; $lanes:literal] } => {
// array references
- impl AsRef<[$type; $lanes]> for $name {
+ impl<const LANES: usize> AsRef<[$type; LANES]> for $name<LANES> where Self: crate::LanesAtMost64 {
#[inline]
- fn as_ref(&self) -> &[$type; $lanes] {
- unsafe { &*(self as *const _ as *const _) }
+ fn as_ref(&self) -> &[$type; LANES] {
+ &self.0
}
}
- impl AsMut<[$type; $lanes]> for $name {
+ impl<const LANES: usize> AsMut<[$type; LANES]> for $name<LANES> where Self: crate::LanesAtMost64 {
#[inline]
- fn as_mut(&mut self) -> &mut [$type; $lanes] {
- unsafe { &mut *(self as *mut _ as *mut _) }
+ fn as_mut(&mut self) -> &mut [$type; LANES] {
+ &mut self.0
}
}
// slice references
- impl AsRef<[$type]> for $name {
+ impl<const LANES: usize> AsRef<[$type]> for $name<LANES> where Self: crate::LanesAtMost64 {
#[inline]
fn as_ref(&self) -> &[$type] {
- AsRef::<[$type; $lanes]>::as_ref(self)
+ &self.0
}
}
- impl AsMut<[$type]> for $name {
+ impl<const LANES: usize> AsMut<[$type]> for $name<LANES> where Self: crate::LanesAtMost64 {
#[inline]
fn as_mut(&mut self) -> &mut [$type] {
- AsMut::<[$type; $lanes]>::as_mut(self)
+ &mut self.0
}
}
// vector/array conversion
- from_transmute! { unsafe $name => [$type; $lanes] }
+ impl<const LANES: usize> From<[$type; LANES]> for $name<LANES> where Self: crate::LanesAtMost64 {
+ fn from(array: [$type; LANES]) -> Self {
+ Self(array)
+ }
+ }
// splat
- impl From<$type> for $name {
+ impl<const LANES: usize> From<$type> for $name<LANES> where Self: crate::LanesAtMost64 {
#[inline]
fn from(value: $type) -> Self {
Self::splat(value)
}
}
+
+ impl_shuffle_2pow_lanes!{ $name }
}
}
-/// Defines a vector `$name` containing multiple `$lanes` of `$type`.
-macro_rules! define_vector {
- { $(#[$attr:meta])* struct $name:ident([$type:ty; $lanes:tt]); } => {
- call_repeat! { $lanes => define_vector [$type] def $(#[$attr])* | $name | }
+/// Implements additional integer traits (Eq, Ord, Hash) on the specified vector `$name`, holding multiple `$lanes` of `$type`.
+macro_rules! impl_integer_vector {
+ { $name:ident, $type:ty } => {
+ impl_vector! { $name, $type }
- impl $name {
- call_repeat! { $lanes => define_vector [$type] splat $type | }
- call_counting_args! { $lanes => define_vector => new $type | }
- }
+ impl<const LANES: usize> Eq for $name<LANES> where Self: crate::LanesAtMost64 {}
- base_vector_traits! { $name => [$type; $lanes] }
- };
- { def $(#[$attr:meta])* | $name:ident | $($itype:ty)* } => {
- $(#[$attr])*
- #[allow(non_camel_case_types)]
- #[derive(Copy, Clone, Debug, Default, PartialEq, PartialOrd)]
- #[repr(simd)]
- pub struct $name($($itype),*);
- };
- { splat $type:ty | $($itype:ty)* } => {
- /// Construct a vector by setting all lanes to the given value.
- #[inline]
- pub const fn splat(value: $type) -> Self {
- Self($(value as $itype),*)
+ impl<const LANES: usize> Ord for $name<LANES> where Self: crate::LanesAtMost64 {
+ #[inline]
+ fn cmp(&self, other: &Self) -> core::cmp::Ordering {
+ // TODO use SIMD cmp
+ self.to_array().cmp(other.as_ref())
+ }
}
- };
- { new $type:ty | $($var:ident)* } => {
- /// Construct a vector by setting each lane to the given values.
- #[allow(clippy::too_many_arguments)]
- #[inline]
- pub const fn new($($var: $type),*) -> Self {
- Self($($var),*)
+
+ impl<const LANES: usize> core::hash::Hash for $name<LANES> where Self: crate::LanesAtMost64 {
+ #[inline]
+ fn hash<H>(&self, state: &mut H)
+ where
+ H: core::hash::Hasher
+ {
+ self.as_slice().hash(state)
+ }
}
}
}
-/// Defines a mask vector `$name` containing multiple `$lanes` of `$type`, represented by the
-/// underlying type `$impl_type`.
-macro_rules! define_mask_vector {
- { $(#[$attr:meta])* struct $name:ident([$impl_type:ty as $type:ty; $lanes:tt]); } => {
- call_repeat! { $lanes => define_mask_vector [$impl_type] def $(#[$attr])* | $name | }
+/// Implements inherent methods for a float vector `$name` containing multiple
+/// `$lanes` of float `$type`, which uses `$bits_ty` as its binary
+/// representation. Called from `define_float_vector!`.
+macro_rules! impl_float_vector {
+ { $name:ident, $type:ty, $bits_ty:ident } => {
+ impl_vector! { $name, $type }
+
+ impl<const LANES: usize> $name<LANES>
+ where
+ Self: crate::LanesAtMost64,
+ crate::$bits_ty<LANES>: crate::LanesAtMost64,
+ {
+ /// Raw transmutation to an unsigned integer vector type with the
+ /// same size and number of lanes.
+ #[inline]
+ pub fn to_bits(self) -> crate::$bits_ty<LANES> {
+ assert_eq!(core::mem::size_of::<Self>(), core::mem::size_of::<crate::$bits_ty<LANES>>());
+ unsafe { core::mem::transmute_copy(&self) }
+ }
- impl $name {
- call_repeat! { $lanes => define_mask_vector [$impl_type] splat $type | }
- call_counting_args! { $lanes => define_mask_vector => new $type | }
- }
+ /// Raw transmutation from an unsigned integer vector type with the
+ /// same size and number of lanes.
+ #[inline]
+ pub fn from_bits(bits: crate::$bits_ty<LANES>) -> Self {
+ assert_eq!(core::mem::size_of::<Self>(), core::mem::size_of::<crate::$bits_ty<LANES>>());
+ unsafe { core::mem::transmute_copy(&bits) }
+ }
- base_vector_traits! { $name => [$type; $lanes] }
- };
- { def $(#[$attr:meta])* | $name:ident | $($itype:ty)* } => {
- $(#[$attr])*
- #[allow(non_camel_case_types)]
- #[derive(Copy, Clone, Debug, Default, PartialEq, PartialOrd, Eq, Ord)]
- #[repr(simd)]
- pub struct $name($($itype),*);
- };
- { splat $type:ty | $($itype:ty)* } => {
- /// Construct a vector by setting all lanes to the given value.
- #[inline]
- pub const fn splat(value: $type) -> Self {
- Self($(value.0 as $itype),*)
+ /// Produces a vector where every lane has the absolute value of the
+ /// equivalently-indexed lane in `self`.
+ #[inline]
+ pub fn abs(self) -> Self {
+ let no_sign = crate::$bits_ty::splat(!0 >> 1);
+ Self::from_bits(self.to_bits() & no_sign)
+ }
}
};
- { new $type:ty | $($var:ident)* } => {
- /// Construct a vector by setting each lane to the given values.
- #[allow(clippy::too_many_arguments)]
- #[inline]
- pub const fn new($($var: $type),*) -> Self {
- Self($($var.0),*)
- }
- }
}
projects / rust.git / blobdiff