Method is_child_loop

cranelift/codegen/src/loop_analysis.rs:144–153

Determines if a loop is contained in another loop. `is_child_loop(child,parent)` returns `true` if and only if `child` is a child loop of `parent` (or `child == parent`).

(&self, child: Loop, parent: Loop)

    /// `is_child_loop(child,parent)` returns `true` if and only if `child` is a child loop of
    /// `parent` (or `child == parent`).
    pub fn is_child_loop(&self, child: Loop, parent: Loop) -> bool {
        let mut finger = Some(child);
        while let Some(finger_loop) = finger {
            if finger_loop == parent {
                return true;
            }
            finger = self.loop_parent(finger_loop);
        }
        false
    }

    /// Returns the loop-nest level of a given block.
    pub fn loop_level(&self, block: Block) -> LoopLevel {