wasmi 2.0.0-beta.4

WebAssembly interpreter
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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167

use super::IntoLaneIdx;
use crate::{
    V128,
    core::{Typed, simd},
    engine::translator::utils::ToBits,
    ir::{Op, Slot},
};

pub trait SimdReplaceLane {
    type Item: Typed + IntoLaneIdx + Copy;
    type Immediate: Copy;

    fn into_immediate(value: Self::Item) -> Self::Immediate;

    fn const_eval(
        input: V128,
        lane: <Self::Item as IntoLaneIdx>::LaneIdx,
        value: Self::Item,
    ) -> V128;

    fn op_ssr(result: Slot, input: Slot, lane: <Self::Item as IntoLaneIdx>::LaneIdx) -> Op;

    fn op_sss(
        result: Slot,
        input: Slot,
        lane: <Self::Item as IntoLaneIdx>::LaneIdx,
        value: Slot,
    ) -> Op;

    fn op_ssi(
        result: Slot,
        input: Slot,
        lane: <Self::Item as IntoLaneIdx>::LaneIdx,
        value: Self::Immediate,
    ) -> Op;
}

macro_rules! impl_replace_lane {
    (
        $(
            impl SimdReplaceLane for $name:ident {
                type Item = $item_ty:ty;
                type Immediate = $imm_ty:ty;
                fn const_eval = $const_eval:expr;
                fn into_immediate = $into_immediate:expr;
                fn op_ssr = $replace_lane_ssr:expr;
                fn op_sss = $replace_lane_sss:expr;
                fn op_ssi = $replace_lane_ssi:expr;
            }
        )*
    ) => {
        $(
            #[doc = concat!("Wasm `", stringify!($name), "` operator.")]
            pub enum $name {}
            impl SimdReplaceLane for $name {
                type Item = $item_ty;
                type Immediate = $imm_ty;

                fn const_eval(
                    input: V128,
                    lane: <Self::Item as IntoLaneIdx>::LaneIdx,
                    value: Self::Item,
                ) -> V128 {
                    $const_eval(input, lane, value)
                }

                fn into_immediate(value: Self::Item) -> Self::Immediate {
                    $into_immediate(value)
                }

                fn op_ssr(
                    result: Slot,
                    input: Slot,
                    lane: <Self::Item as IntoLaneIdx>::LaneIdx,
                ) -> Op {
                    $replace_lane_ssr(result, input, lane)
                }

                fn op_sss(
                    result: Slot,
                    input: Slot,
                    lane: <Self::Item as IntoLaneIdx>::LaneIdx,
                    value: Slot,
                ) -> Op {
                    $replace_lane_sss(result, input, value, lane)
                }

                fn op_ssi(
                    result: Slot,
                    input: Slot,
                    lane: <Self::Item as IntoLaneIdx>::LaneIdx,
                    value: Self::Immediate,
                ) -> Op {
                    $replace_lane_ssi(result, input, value, lane)
                }
            }
        )*
    };
}

impl_replace_lane! {
    impl SimdReplaceLane for I8x16ReplaceLane {
        type Item = i8;
        type Immediate = u8;

        fn const_eval = simd::i8x16_replace_lane;
        fn into_immediate = <i8 as ToBits>::to_bits;
        fn op_ssr = Op::u8x16_replace_lane_ssr;
        fn op_sss = Op::u8x16_replace_lane_sss;
        fn op_ssi = Op::u8x16_replace_lane_ssi;
    }

    impl SimdReplaceLane for I16x8ReplaceLane {
        type Item = i16;
        type Immediate = u16;

        fn const_eval = simd::i16x8_replace_lane;
        fn into_immediate = <i16 as ToBits>::to_bits;
        fn op_ssr = Op::u16x8_replace_lane_ssr;
        fn op_sss = Op::u16x8_replace_lane_sss;
        fn op_ssi = Op::u16x8_replace_lane_ssi;
    }

    impl SimdReplaceLane for I32x4ReplaceLane {
        type Item = i32;
        type Immediate = u32;

        fn const_eval = simd::i32x4_replace_lane;
        fn into_immediate = <i32 as ToBits>::to_bits;
        fn op_ssr = Op::u32x4_replace_lane_ssr;
        fn op_sss = Op::u32x4_replace_lane_sss;
        fn op_ssi = Op::u32x4_replace_lane_ssi;
    }

    impl SimdReplaceLane for I64x2ReplaceLane {
        type Item = i64;
        type Immediate = u64;

        fn const_eval = simd::i64x2_replace_lane;
        fn into_immediate = <i64 as ToBits>::to_bits;
        fn op_ssr = Op::u64x2_replace_lane_ssr;
        fn op_sss = Op::u64x2_replace_lane_sss;
        fn op_ssi = Op::u64x2_replace_lane_ssi;
    }

    impl SimdReplaceLane for F32x4ReplaceLane {
        type Item = f32;
        type Immediate = u32;

        fn const_eval = simd::f32x4_replace_lane;
        fn into_immediate = <f32 as ToBits>::to_bits;
        fn op_ssr = Op::f32x4_replace_lane_ssr;
        fn op_sss = Op::u32x4_replace_lane_sss;
        fn op_ssi = Op::u32x4_replace_lane_ssi;
    }

    impl SimdReplaceLane for F64x2ReplaceLane {
        type Item = f64;
        type Immediate = u64;

        fn const_eval = simd::f64x2_replace_lane;
        fn into_immediate = <f64 as ToBits>::to_bits;
        fn op_ssr = Op::f64x2_replace_lane_ssr;
        fn op_sss = Op::u64x2_replace_lane_sss;
        fn op_ssi = Op::u64x2_replace_lane_ssi;
    }
}