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Use intrinsics directly to avoid recursion

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This commit is contained in:
Caleb Zulawski 2024-02-17 11:33:13 -05:00
parent 44b4d26273
commit aebf6f1560
1 changed files with 11 additions and 2 deletions
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13
crates/core_simd/src/masks.rs
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@ -12,7 +12,7 @@
)]
mod mask_impl;
use crate::simd::{cmp::SimdPartialEq, LaneCount, Simd, SimdCast, SimdElement, SupportedLaneCount};
use crate::simd::{LaneCount, Simd, SimdCast, SimdElement, SupportedLaneCount};
use core::cmp::Ordering;
use core::{fmt, mem};
@ -58,7 +58,16 @@ macro_rules! impl_element {
where
LaneCount<N>: SupportedLaneCount,
{
(value.simd_eq(Simd::splat(0 as _)) | value.simd_eq(Simd::splat(-1 as _))).all()
// We can't use `Simd` directly, because `Simd`'s functions call this function and
// we will end up with an infinite loop.
// Safety: `value` is an integer vector
unsafe {
use core::intrinsics::simd;
let falses: Simd<Self, N> = simd::simd_eq(value, Simd::splat(0 as _));
let trues: Simd<Self, N> = simd::simd_eq(value, Simd::splat(-1 as _));
let valid: Simd<Self, N> = simd::simd_or(falses, trues);
simd::simd_reduce_all(valid)
}
}
#[inline]