Function compute_dependencies

pub fn compute_dependencies<'tcx>(
    results: &FlowResults<'tcx>,
    all_targets: Vec<Vec<(Place<'tcx>, LocationOrArg)>>,
    direction: Direction,
) -> Vec<LocationOrArgSet>

Computes the dependencies of a place $p$ at a location $\ell$ in a given direction.

• If the direction is backward, then the dependencies are locations that influence $p$.
• If the direction is forward, then the dependencies are locations that are influenced by $p$.

For efficiency reasons, this function actually takes a list of list of places at locations. For example, if all_targets = [[x@L1, y@L2], [z@L3]] then the result would be [deps(x@L1) ∪ deps(y@L2), deps(z@L3)].