llzk 0.5.0

Rust bindings to the LLZK C API.
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

//! Types and functions for working with affine maps and expressions.

use std::{
    marker::PhantomData,
    ops::{Add, Mul, Neg, Sub},
};

use melior::{Context, ContextRef, ir::Attribute};
use mlir_sys::{
    MlirAffineExpr, MlirAffineMap, mlirAffineAddExprGet, mlirAffineConstantExprGet,
    mlirAffineDimExprGet, mlirAffineExprGetContext, mlirAffineMapAttrGet, mlirAffineMapGet,
    mlirAffineMulExprGet, mlirAffineSymbolExprGet,
};

/// An affine map.
///
/// This type is different from melior's [`AffineMap`](melior::ir::AffineMap).
/// `From<AffineMap>` is implemented for it to help with compatibility.
/// The reverse operation of `From<melior::ir::AffineMap> for AffineMap` is not
/// implemented because melior's version does not have a way of extracting the
/// raw CAPI type.
#[derive(Debug, Clone, Copy)]
pub struct AffineMap<'ctx> {
    raw: MlirAffineMap,
    _context: PhantomData<&'ctx Context>,
}

impl<'ctx> AffineMap<'ctx> {
    /// Creates an affine with the given number of dimension and symbols.
    pub fn new(
        context: &'ctx Context,
        dims: usize,
        symbols: usize,
        exprs: &[AffineExpr<'ctx>],
    ) -> Self {
        let mut exprs = exprs
            .iter()
            .map(|expr| unsafe { expr.to_raw() })
            .collect::<Vec<_>>();
        Self {
            raw: unsafe {
                mlirAffineMapGet(
                    context.to_raw(),
                    dims as isize,
                    symbols as isize,
                    exprs.len() as isize,
                    exprs.as_mut_ptr(),
                )
            },
            _context: PhantomData,
        }
    }

    /// Returns the raw representation of the affine map.
    pub unsafe fn to_raw(&self) -> MlirAffineMap {
        self.raw
    }
}

impl<'ctx> From<AffineMap<'ctx>> for Attribute<'ctx> {
    fn from(value: AffineMap<'ctx>) -> Self {
        unsafe { Attribute::from_raw(mlirAffineMapAttrGet(value.to_raw())) }
    }
}

impl<'ctx> From<AffineMap<'ctx>> for melior::ir::AffineMap<'ctx> {
    fn from(value: AffineMap<'ctx>) -> Self {
        unsafe { Self::from_raw(value.to_raw()) }
    }
}

/// An affine expression.
#[derive(Debug, Clone, Copy)]
pub struct AffineExpr<'ctx> {
    raw: MlirAffineExpr,
    _context: PhantomData<&'ctx Context>,
}

impl<'ctx> AffineExpr<'ctx> {
    /// Creates a constant expression.
    pub fn constant(context: &'ctx Context, constant: i64) -> Self {
        Self {
            raw: unsafe { mlirAffineConstantExprGet(context.to_raw(), constant) },
            _context: PhantomData,
        }
    }

    /// Creates a symbol expression.
    pub fn symbol(context: &'ctx Context, position: usize) -> Self {
        Self {
            raw: unsafe { mlirAffineSymbolExprGet(context.to_raw(), position as isize) },
            _context: PhantomData,
        }
    }

    /// Creates a dimension expression.
    pub fn dimension(context: &'ctx Context, position: usize) -> Self {
        Self {
            raw: unsafe { mlirAffineDimExprGet(context.to_raw(), position as isize) },
            _context: PhantomData,
        }
    }

    /// Returns the raw representation of the affine expression.
    pub unsafe fn to_raw(&self) -> MlirAffineExpr {
        self.raw
    }

    /// Returns a reference to the context.
    pub fn context(&self) -> ContextRef<'ctx> {
        unsafe { ContextRef::from_raw(mlirAffineExprGetContext(self.to_raw())) }
    }
}

impl Add for AffineExpr<'_> {
    type Output = Self;

    fn add(self, rhs: Self) -> Self::Output {
        Self {
            raw: unsafe { mlirAffineAddExprGet(self.to_raw(), rhs.to_raw()) },
            _context: PhantomData,
        }
    }
}

impl Sub for AffineExpr<'_> {
    type Output = Self;

    fn sub(self, rhs: Self) -> Self::Output {
        self + (-rhs)
    }
}

impl Mul for AffineExpr<'_> {
    type Output = Self;

    fn mul(self, rhs: Self) -> Self::Output {
        Self {
            raw: unsafe { mlirAffineMulExprGet(self.to_raw(), rhs.to_raw()) },
            _context: PhantomData,
        }
    }
}

impl Neg for AffineExpr<'_> {
    type Output = Self;

    fn neg(self) -> Self::Output {
        let context = self.context();
        self * Self::constant(unsafe { context.to_ref() }, -1)
    }
}