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Merge pull request #1431 from MichaelOwenDyer/put-x86-macro-behind-x86-config

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Put macro `x86_intrinsic_impl` behind x86 configuration
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Michael Dyer 2024-04-04 16:29:15 +02:00 committed by GitHub
commit 21a1ce1be6
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1 changed files with 2 additions and 2 deletions
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4
src/distributions/integer.rs
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@ -23,7 +23,6 @@ use core::num::{
NonZeroI16, NonZeroI32, NonZeroI64, NonZeroI8, NonZeroIsize,NonZeroI128
};
#[cfg(feature = "simd_support")] use core::simd::*;
use core::mem;
impl Distribution<u8> for Standard {
#[inline]
@ -123,6 +122,7 @@ impl_nzint!(NonZeroI64, NonZeroI64::new);
impl_nzint!(NonZeroI128, NonZeroI128::new);
impl_nzint!(NonZeroIsize, NonZeroIsize::new);
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
macro_rules! x86_intrinsic_impl {
($meta:meta, $($intrinsic:ident),+) => {$(
#[cfg($meta)]
@ -132,7 +132,7 @@ macro_rules! x86_intrinsic_impl {
fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> $intrinsic {
// On proper hardware, this should compile to SIMD instructions
// Verified on x86 Haswell with __m128i, __m256i
let mut buf = [0_u8; mem::size_of::<$intrinsic>()];
let mut buf = [0_u8; core::mem::size_of::<$intrinsic>()];
rng.fill_bytes(&mut buf);
// x86 is little endian so no need for conversion
zerocopy::transmute!(buf)