Method from

winch/codegen/src/isa/reg.rs:28–30

Create a register from its encoding and class.

(class: RegClass, enc: usize)

impl Reg {
    /// Create a register from its encoding and class.
    pub fn from(class: RegClass, enc: usize) -> Self {
        Self::new(PReg::new(enc, class))
    }

    /// Create a new register from a physical register.
    pub const fn new(raw: PReg) -> Self {