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/*
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2012 Clifford Wolf <clifford@clifford.at>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#ifndef CELLEDGES_H
#define CELLEDGES_H
#include "kernel/yosys.h"
#include "kernel/sigtools.h"
YOSYS_NAMESPACE_BEGIN
struct AbstractCellEdgesDatabase
{
virtual ~AbstractCellEdgesDatabase() { }
virtual void add_edge(RTLIL::Cell *cell, RTLIL::IdString from_port, int from_bit, RTLIL::IdString to_port, int to_bit, int delay) = 0;
bool add_edges_from_cell(RTLIL::Cell *cell);
};
struct FwdCellEdgesDatabase : AbstractCellEdgesDatabase
{
SigMap &sigmap;
dict<SigBit, pool<SigBit>> db;
FwdCellEdgesDatabase(SigMap &sigmap) : sigmap(sigmap) { }
virtual void add_edge(RTLIL::Cell *cell, RTLIL::IdString from_port, int from_bit, RTLIL::IdString to_port, int to_bit, int) override {
SigBit from_sigbit = sigmap(cell->getPort(from_port)[from_bit]);
SigBit to_sigbit = sigmap(cell->getPort(to_port)[to_bit]);
db[from_sigbit].insert(to_sigbit);
}
};
struct RevCellEdgesDatabase : AbstractCellEdgesDatabase
{
SigMap &sigmap;
dict<SigBit, pool<SigBit>> db;
RevCellEdgesDatabase(SigMap &sigmap) : sigmap(sigmap) { }
virtual void add_edge(RTLIL::Cell *cell, RTLIL::IdString from_port, int from_bit, RTLIL::IdString to_port, int to_bit, int) override {
SigBit from_sigbit = sigmap(cell->getPort(from_port)[from_bit]);
SigBit to_sigbit = sigmap(cell->getPort(to_port)[to_bit]);
db[to_sigbit].insert(from_sigbit);
}
};
YOSYS_NAMESPACE_END
#endif
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