Method check_fixed

src/debug_utils/validate_func.rs:169–180

Check for multiple conflicting uses of a fixed register in a single constraint scope.

(&mut self, source: ConstraintSource, reg: PhysReg, early: bool)

    /// Check for multiple conflicting uses of a fixed register in a single
    /// constraint scope.
    fn check_fixed(&mut self, source: ConstraintSource, reg: PhysReg, early: bool) -> Result<()> {
        let set = if early {
            &mut self.early_fixed
        } else {
            &mut self.late_fixed
        };
        for unit in self.reginfo.reg_units(reg) {
            ensure!(!set.contains(unit), "{source}: Conflicting uses of {reg}");
            set.insert(unit);
        }
        Ok(())
    }

    /// Check an operand with a constraint.
    fn check_constraint(