shenjack/namerena-rs
shenjack/namerena-rs
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simd优化++

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simd好欸
This commit is contained in:
shenjack 2024-03-02 13:29:31 +08:00
parent 04ea7d218b
commit b2f99bca9e
Signed by: shenjack
GPG Key ID: 7B1134A979775551
1 changed files with 11 additions and 5 deletions
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16
src/name.rs
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@ -2,6 +2,8 @@
use std::simd::u8x64;
#[cfg(feature = "simd")]
use std::simd::cmp::SimdPartialOrd;
#[cfg(feature = "simd")]
use std::simd::Simd;
use tracing::warn;
@ -194,7 +196,7 @@ impl Namer {
{
let mut simd_val = val.clone();
let mut simd_val_b = [0_u8; 256];
// let mut simd_target = [false; 256];
let mut simd_target = [false; 256];
let simd_181 = u8x64::splat(181);
let simd_160 = u8x64::splat(160);
let simd_63 = u8x64::splat(63);
@ -207,6 +209,11 @@ impl Namer {
x = x * simd_181 + simd_160;
// 写入到 simd_val
x.copy_to_slice(&mut simd_val[i..]);
// 提前判断 > 88 && < 217
let mask = x.simd_ge(simd_88) & x.simd_lt(simd_217);
// 写入到 simd_target
let mask: [bool; 64] = mask.to_array();
simd_target[i..i + 64].copy_from_slice(&mask);
x = x & simd_63;
x.copy_to_slice(&mut simd_val_b[i..]);
@ -214,12 +221,11 @@ impl Namer {
let mut mod_count = 0;
for i in 0..96 {
let k = simd_val[i];
if k >= 89 && k < 217 {
if simd_target[i] {
name_base[mod_count as usize] = simd_val_b[i];
mod_count += 1;
}
if mod_count >= 31 {
if mod_count > 30 {
break;
}
}
@ -230,7 +236,7 @@ impl Namer {
name_base[mod_count as usize] = simd_val_b[i];
mod_count += 1;
}
if mod_count >= 30 {
if mod_count > 30 {
break;
}
}