super_cluster_builder.h

 
#ifndef BACKENDS_TOFINO_BF_P4C_TEST_UTILS_SUPER_CLUSTER_BUILDER_H_
#define BACKENDS_TOFINO_BF_P4C_TEST_UTILS_SUPER_CLUSTER_BUILDER_H_
 
#include <algorithm>
#include <cctype>
#include <iostream>
#include <istream>
#include <optional>
#include <sstream>
#include <string>
 
#include "bf-p4c/ir/bitrange.h"
#include "bf-p4c/phv/allocate_phv.h"
#include "bf-p4c/phv/utils/utils.h"
 
class SuperClusterBuilder {
 public:
    SuperClusterBuilder() {}
 
    // The format of the file is as follows:
    // SUPERCLUSTER Uid: <uid>\n
    // <slice lists>\n
    // <rotational clusters>\n
    //
    // <uid> ::= <number>
    // <slice lists> ::= slice lists: <lists of slices>
    // <lists of slices> ::=
    // <lists of slices> ::= [ <slices> ]\n<list of slices>
    // <slices> ::=
    // <slices> ::= <slice>\n<slices>
    // <rotational clusters> ::= rotational clusters: { }
    // <rotational clusters> ::= rotational clusters:\n<list of rotational clusters>
    // <list of rotational clusters> ::=
    // <list of rotational clusters> ::= <rotational cluster>\n<list of rotational clusters>
    // <rotational cluster> ::= [<aligned cluster><aligned cluster continued>]
    // <aligned cluster continued> ::=
    // <aligned cluster continued> ::= , <aligned cluster><aligned cluster continued>
    // <aligned cluster> ::= [<slice><slice continued>]
    // <slice continued> ::=
    // <slice continued> ::= , <slice><slice continued>
    // <slice> ::= <field> <optional field attributes> <field range>
    // <field> ::= <identifier>'<'<number>'>'
    // <field range> ::= [<number>:<number>]
    // For possible optional field attributes see phv/phv_fields.cpp
    //   method std::ostream &operator<<(std::ostream &out, const PHV::FieldSlice& fs)
    std::optional<PHV::SuperCluster *> build_super_cluster(std::istream &scs);
 
 private:
    ordered_map<const std::string, PHV::Field *> str_to_field_m;
    ordered_map<const std::string, PHV::FieldSlice *> str_to_slice_m;
 
 
    std::optional<PHV::SuperCluster *> analyze_super_cluster(std::istream &scs);
    PHV::SuperCluster::SliceList *analyze_slice_list(std::istream &scs);
    PHV::RotationalCluster *analyze_rotational_cluster(std::istream &scs);
    PHV::AlignedCluster *analyze_aligned_cluster(std::string &str);
    PHV::FieldSlice *analyze_field_slice(std::string &str);
};
 
#endif /* BACKENDS_TOFINO_BF_P4C_TEST_UTILS_SUPER_CLUSTER_BUILDER_H_ */