[go: up one dir, main page]

sonic-rs 0.3.11

Sonic-rs is a fast Rust JSON library based on SIMD
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143

use std::{
    arch::x86_64::*,
    ops::{BitAnd, BitOr, BitOrAssign},
};

use super::{Mask, Simd};
use crate::impl_lanes;

#[derive(Debug)]
#[repr(transparent)]
pub struct Simd128i(__m128i);

#[derive(Debug)]
#[repr(transparent)]
pub struct Simd128u(__m128i);

impl Simd for Simd128i {
    const LANES: usize = 16;
    type Mask = Mask128;
    type Element = i8;

    #[inline(always)]
    unsafe fn loadu(ptr: *const u8) -> Self {
        Self(_mm_loadu_si128(ptr as *const __m128i))
    }

    #[inline(always)]
    unsafe fn storeu(&self, ptr: *mut u8) {
        _mm_storeu_si128(ptr as *mut __m128i, self.0)
    }

    #[inline(always)]
    fn eq(&self, rhs: &Self) -> Self::Mask {
        let eq = unsafe { _mm_cmpeq_epi8(self.0, rhs.0) };
        Mask128(eq)
    }

    #[inline(always)]
    fn splat(elem: i8) -> Self {
        unsafe { Self(_mm_set1_epi8(elem)) }
    }

    #[inline(always)]
    fn le(&self, rhs: &Self) -> Self::Mask {
        // self <= rhs equal as rhs >= self
        rhs.gt(self) | rhs.eq(self)
    }

    #[inline(always)]
    fn gt(&self, rhs: &Self) -> Self::Mask {
        unsafe { Mask128(_mm_cmpgt_epi8(self.0, rhs.0)) }
    }
}

#[derive(Debug)]
#[repr(transparent)]
pub struct Mask128(__m128i);

impl_lanes!(Simd128u, 16);

impl_lanes!(Mask128, 16);

impl Mask for Mask128 {
    type BitMask = u16;
    type Element = u8;

    #[inline(always)]
    fn bitmask(self) -> Self::BitMask {
        unsafe { _mm_movemask_epi8(self.0) as u16 }
    }

    #[inline(always)]
    fn splat(b: bool) -> Self {
        let v: i8 = if b { -1 } else { 0 };
        unsafe { Mask128(_mm_set1_epi8(v)) }
    }
}

impl BitAnd<Mask128> for Mask128 {
    type Output = Self;

    #[inline(always)]
    fn bitand(self, rhs: Mask128) -> Self::Output {
        unsafe { Mask128(_mm_and_si128(self.0, rhs.0)) }
    }
}

impl BitOr<Mask128> for Mask128 {
    type Output = Self;

    #[inline(always)]
    fn bitor(self, rhs: Mask128) -> Self::Output {
        unsafe { Mask128(_mm_or_si128(self.0, rhs.0)) }
    }
}

impl BitOrAssign<Mask128> for Mask128 {
    #[inline(always)]
    fn bitor_assign(&mut self, rhs: Mask128) {
        self.0 = unsafe { _mm_or_si128(self.0, rhs.0) };
    }
}

impl Simd for Simd128u {
    const LANES: usize = 16;
    type Mask = Mask128;
    type Element = u8;

    #[inline(always)]
    unsafe fn loadu(ptr: *const u8) -> Self {
        Simd128u(_mm_loadu_si128(ptr as *const __m128i))
    }

    #[inline(always)]
    unsafe fn storeu(&self, ptr: *mut u8) {
        _mm_storeu_si128(ptr as *mut __m128i, self.0)
    }

    #[inline(always)]
    fn eq(&self, rhs: &Self) -> Self::Mask {
        let eq = unsafe { _mm_cmpeq_epi8(self.0, rhs.0) };
        Mask128(eq)
    }

    #[inline(always)]
    fn splat(ch: u8) -> Self {
        Simd128u(unsafe { _mm_set1_epi8(ch as i8) })
    }

    #[inline(always)]
    fn le(&self, rhs: &Self) -> Self::Mask {
        unsafe {
            let max = _mm_max_epu8(self.0, rhs.0);
            let eq = _mm_cmpeq_epi8(max, rhs.0);
            Mask128(eq)
        }
    }

    #[inline(always)]
    fn gt(&self, _rhs: &Self) -> Self::Mask {
        todo!()
    }
}