diff options
Diffstat (limited to 'third_party/rust/packed_simd/src/api/math/float/mul_adde.rs')
| -rw-r--r-- | third_party/rust/packed_simd/src/api/math/float/mul_adde.rs | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/third_party/rust/packed_simd/src/api/math/float/mul_adde.rs b/third_party/rust/packed_simd/src/api/math/float/mul_adde.rs deleted file mode 100644 index c5b27110f2..0000000000 --- a/third_party/rust/packed_simd/src/api/math/float/mul_adde.rs +++ /dev/null @@ -1,48 +0,0 @@ -//! Implements vertical (lane-wise) floating-point `mul_adde`. - -macro_rules! impl_math_float_mul_adde { - ([$elem_ty:ident; $elem_count:expr]: $id:ident | $test_tt:tt) => { - impl $id { - /// Fused multiply add estimate: ~= `self * y + z` - /// - /// While fused multiply-add (`fma`) has infinite precision, - /// `mul_adde` has _at worst_ the same precision of a multiply followed by an add. - /// This might be more efficient on architectures that do not have an `fma` instruction. - #[inline] - pub fn mul_adde(self, y: Self, z: Self) -> Self { - use crate::codegen::math::float::mul_adde::MulAddE; - MulAddE::mul_adde(self, y, z) - } - } - - test_if!{ - $test_tt: - paste::item! { - pub mod [<$id _math_mul_adde>] { - use super::*; - #[cfg_attr(not(target_arch = "wasm32"), test)] #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)] - fn mul_adde() { - let z = $id::splat(0 as $elem_ty); - let o = $id::splat(1 as $elem_ty); - let t = $id::splat(2 as $elem_ty); - let t3 = $id::splat(3 as $elem_ty); - let f = $id::splat(4 as $elem_ty); - - assert_eq!(z, z.mul_adde(z, z)); - assert_eq!(o, o.mul_adde(o, z)); - assert_eq!(o, o.mul_adde(z, o)); - assert_eq!(o, z.mul_adde(o, o)); - - assert_eq!(t, o.mul_adde(o, o)); - assert_eq!(t, o.mul_adde(t, z)); - assert_eq!(t, t.mul_adde(o, z)); - - assert_eq!(f, t.mul_adde(t, z)); - assert_eq!(f, t.mul_adde(o, t)); - assert_eq!(t3, t.mul_adde(o, o)); - } - } - } - } - }; -} |