vyre 0.4.0

GPU compute intermediate representation with a standard operation library
Documentation 
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use crate::ir::{Expr, Program};
use crate::ops::primitive;
use crate::ops::{AlgebraicLaw, OpSpec, U32_OUTPUTS, U32_U32_INPUTS};

// Wrapping subtraction of two u32 values.



pub const LAWS: &[AlgebraicLaw] = &[
    AlgebraicLaw::SelfInverse { result: 0 },
    AlgebraicLaw::RightIdentity { element: 0 },
    AlgebraicLaw::InverseOf {
        op: "primitive.math.add",
    },
];

/// Wrapping subtraction operation.
#[derive(Debug, Clone, Copy, Default)]
pub struct Sub;

impl Sub {
    /// Declarative operation specification.
    ///
    /// Laws are declared as explicit `AlgebraicLaw` values on `SPEC`.
    pub const SPEC: OpSpec = OpSpec::composition_inlinable(
        "primitive.math.sub",
        U32_U32_INPUTS,
        U32_OUTPUTS,
        LAWS,
        Self::program,
    );

    /// Build the canonical IR program.
    ///
    /// # Examples
    ///
    /// ```
    /// use vyre::ir::Expr;
    /// use vyre::ops::primitive::sub::Sub;
    ///
    /// let _expr = Expr::sub(Expr::u32(7), Expr::u32(2));
    /// let program = Sub::program();
    /// assert!(!program.entry().is_empty());
    /// ```
    #[must_use]
    pub fn program() -> Program {
        primitive::binary_u32_program(Expr::sub)
    }
}

// Backend-specific lowering tripwires for `primitive.math.sub`.

// WGSL lowering marker for `primitive.math.sub`.
//
// Not a stub: this is a zero-overhead Category A marker. `Sub::program`
// builds concrete IR through `core/src/ops/primitive/mod.rs::binary_u32_program`; `core/src/lower/wgsl/expr.rs::emit_binop` emits WGSL.
// `core/tests/conformance.rs::conformance_all_primitives` verifies
// lowered GPU bytes are bit-exact against the conform CPU reference.
//
// ```wgsl
// _vyre_store_out(idx, (_vyre_load_a(idx) - _vyre_load_b(idx)));
// ```