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macro_rules! impl_arithmetic_reductions {
($id:ident, $elem_ty:ident) => {
impl $id {
#[inline]
pub fn sum(self) -> $elem_ty {
ReduceAdd::reduce_add(self)
}
#[inline]
pub fn product(self) -> $elem_ty {
ReduceMul::reduce_mul(self)
}
}
}
}
#[cfg(test)]
macro_rules! test_arithmetic_reductions {
($id:ident, $elem_ty:ident) => {
fn alternating(x: usize) -> ::coresimd::simd::$id {
use ::coresimd::simd::$id;
let mut v = $id::splat(1 as $elem_ty);
for i in 0..$id::lanes() {
if i % x == 0 {
v = v.replace(i, 2 as $elem_ty);
}
}
v
}
#[test]
fn sum() {
use ::coresimd::simd::$id;
let v = $id::splat(0 as $elem_ty);
assert_eq!(v.sum(), 0 as $elem_ty);
let v = $id::splat(1 as $elem_ty);
assert_eq!(v.sum(), $id::lanes() as $elem_ty);
let v = alternating(2);
assert_eq!(v.sum(), ($id::lanes() / 2 + $id::lanes()) as $elem_ty);
}
#[test]
fn product() {
use ::coresimd::simd::$id;
let v = $id::splat(0 as $elem_ty);
assert_eq!(v.product(), 0 as $elem_ty);
let v = $id::splat(1 as $elem_ty);
assert_eq!(v.product(), 1 as $elem_ty);
let f = match $id::lanes() {
64 => 16,
32 => 8,
16 => 4,
_ => 2,
};
let v = alternating(f);
assert_eq!(v.product(), (2_usize.pow(($id::lanes() / f) as u32) as $elem_ty));
}
}
}