table_control_deps.h

 
#ifndef BF_P4C_MAU_TABLE_CONTROL_DEPS_H_
#define BF_P4C_MAU_TABLE_CONTROL_DEPS_H_
 
#include "backends/tofino/bf-p4c/mau/mau_visitor.h"
#include "lib/ordered_map.h"
 
using namespace P4;
 
class TableControlDeps : public MauTableInspector {
    struct info_t {  // info per table
        ordered_set<const IR::MAU::Table *> parents = {};
        int dependent_paths = 0;
    };
    ordered_map<const IR::MAU::Table *, info_t> info;
 
    profile_t init_apply(const IR::Node *root) override {
        info.clear();
        return MauTableInspector::init_apply(root);
    }
    ordered_set<const IR::MAU::Table *> parents();
    void postorder(const IR::MAU::Table *tbl) override;
    void revisit(const IR::MAU::Table *tbl) override;
    void postorder(const IR::MAU::TableSeq *) override { visitAgain(); }
 
 public:
    bool operator()(const IR::MAU::Table *a, const IR::MAU::Table *b) const;
    int paths(const IR::MAU::Table *) const;
};
 
#endif /* BF_P4C_MAU_TABLE_CONTROL_DEPS_H_ */