diff options
Diffstat (limited to 'third_party/rust/packed_simd/src/api/ops/scalar_arithmetic.rs')
| -rw-r--r-- | third_party/rust/packed_simd/src/api/ops/scalar_arithmetic.rs | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/third_party/rust/packed_simd/src/api/ops/scalar_arithmetic.rs b/third_party/rust/packed_simd/src/api/ops/scalar_arithmetic.rs new file mode 100644 index 0000000000..da1a2037ea --- /dev/null +++ b/third_party/rust/packed_simd/src/api/ops/scalar_arithmetic.rs @@ -0,0 +1,203 @@ +//! Vertical (lane-wise) vector-scalar / scalar-vector arithmetic operations. + +macro_rules! impl_ops_scalar_arithmetic { + ([$elem_ty:ident; $elem_count:expr]: $id:ident | $test_tt:tt) => { + impl crate::ops::Add<$elem_ty> for $id { + type Output = Self; + #[inline] + fn add(self, other: $elem_ty) -> Self { + self + $id::splat(other) + } + } + impl crate::ops::Add<$id> for $elem_ty { + type Output = $id; + #[inline] + fn add(self, other: $id) -> $id { + $id::splat(self) + other + } + } + + impl crate::ops::Sub<$elem_ty> for $id { + type Output = Self; + #[inline] + fn sub(self, other: $elem_ty) -> Self { + self - $id::splat(other) + } + } + impl crate::ops::Sub<$id> for $elem_ty { + type Output = $id; + #[inline] + fn sub(self, other: $id) -> $id { + $id::splat(self) - other + } + } + + impl crate::ops::Mul<$elem_ty> for $id { + type Output = Self; + #[inline] + fn mul(self, other: $elem_ty) -> Self { + self * $id::splat(other) + } + } + impl crate::ops::Mul<$id> for $elem_ty { + type Output = $id; + #[inline] + fn mul(self, other: $id) -> $id { + $id::splat(self) * other + } + } + + impl crate::ops::Div<$elem_ty> for $id { + type Output = Self; + #[inline] + fn div(self, other: $elem_ty) -> Self { + self / $id::splat(other) + } + } + impl crate::ops::Div<$id> for $elem_ty { + type Output = $id; + #[inline] + fn div(self, other: $id) -> $id { + $id::splat(self) / other + } + } + + impl crate::ops::Rem<$elem_ty> for $id { + type Output = Self; + #[inline] + fn rem(self, other: $elem_ty) -> Self { + self % $id::splat(other) + } + } + impl crate::ops::Rem<$id> for $elem_ty { + type Output = $id; + #[inline] + fn rem(self, other: $id) -> $id { + $id::splat(self) % other + } + } + + impl crate::ops::AddAssign<$elem_ty> for $id { + #[inline] + fn add_assign(&mut self, other: $elem_ty) { + *self = *self + other; + } + } + + impl crate::ops::SubAssign<$elem_ty> for $id { + #[inline] + fn sub_assign(&mut self, other: $elem_ty) { + *self = *self - other; + } + } + + impl crate::ops::MulAssign<$elem_ty> for $id { + #[inline] + fn mul_assign(&mut self, other: $elem_ty) { + *self = *self * other; + } + } + + impl crate::ops::DivAssign<$elem_ty> for $id { + #[inline] + fn div_assign(&mut self, other: $elem_ty) { + *self = *self / other; + } + } + + impl crate::ops::RemAssign<$elem_ty> for $id { + #[inline] + fn rem_assign(&mut self, other: $elem_ty) { + *self = *self % other; + } + } + + test_if!{ + $test_tt: + paste::item! { + pub mod [<$id _ops_scalar_arith>] { + use super::*; + #[cfg_attr(not(target_arch = "wasm32"), test)] #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)] + fn ops_scalar_arithmetic() { + let zi = 0 as $elem_ty; + let oi = 1 as $elem_ty; + let ti = 2 as $elem_ty; + let fi = 4 as $elem_ty; + let z = $id::splat(zi); + let o = $id::splat(oi); + let t = $id::splat(ti); + let f = $id::splat(fi); + + // add + assert_eq!(zi + z, z); + assert_eq!(z + zi, z); + assert_eq!(oi + z, o); + assert_eq!(o + zi, o); + assert_eq!(ti + z, t); + assert_eq!(t + zi, t); + assert_eq!(ti + t, f); + assert_eq!(t + ti, f); + // sub + assert_eq!(zi - z, z); + assert_eq!(z - zi, z); + assert_eq!(oi - z, o); + assert_eq!(o - zi, o); + assert_eq!(ti - z, t); + assert_eq!(t - zi, t); + assert_eq!(fi - t, t); + assert_eq!(f - ti, t); + assert_eq!(f - o - o, t); + assert_eq!(f - oi - oi, t); + // mul + assert_eq!(zi * z, z); + assert_eq!(z * zi, z); + assert_eq!(zi * o, z); + assert_eq!(z * oi, z); + assert_eq!(zi * t, z); + assert_eq!(z * ti, z); + assert_eq!(oi * t, t); + assert_eq!(o * ti, t); + assert_eq!(ti * t, f); + assert_eq!(t * ti, f); + // div + assert_eq!(zi / o, z); + assert_eq!(z / oi, z); + assert_eq!(ti / o, t); + assert_eq!(t / oi, t); + assert_eq!(fi / o, f); + assert_eq!(f / oi, f); + assert_eq!(ti / t, o); + assert_eq!(t / ti, o); + assert_eq!(fi / t, t); + assert_eq!(f / ti, t); + // rem + assert_eq!(oi % o, z); + assert_eq!(o % oi, z); + assert_eq!(fi % t, z); + assert_eq!(f % ti, z); + + { + let mut v = z; + assert_eq!(v, z); + v += oi; // add_assign + assert_eq!(v, o); + v -= oi; // sub_assign + assert_eq!(v, z); + v = t; + v *= oi; // mul_assign + assert_eq!(v, t); + v *= ti; + assert_eq!(v, f); + v /= oi; // div_assign + assert_eq!(v, f); + v /= ti; + assert_eq!(v, t); + v %= ti; // rem_assign + assert_eq!(v, z); + } + } + } + } + } + }; +} |