+++ /dev/null
-/*
- * 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.
- *
- */
-
-#include "kernel/yosys.h"
-#include "kernel/cost.h"
-
-YOSYS_NAMESPACE_BEGIN
-
-int get_cell_cost(RTLIL::IdString type, const dict<RTLIL::IdString, RTLIL::Const> ¶meters,
- RTLIL::Design *design, dict<RTLIL::IdString, int> *mod_cost_cache)
-{
- static dict<RTLIL::IdString, int> gate_cost = {
- { "$_BUF_", 1 },
- { "$_NOT_", 2 },
- { "$_AND_", 4 },
- { "$_NAND_", 4 },
- { "$_OR_", 4 },
- { "$_NOR_", 4 },
- { "$_ANDNOT_", 4 },
- { "$_ORNOT_", 4 },
- { "$_XOR_", 8 },
- { "$_XNOR_", 8 },
- { "$_AOI3_", 6 },
- { "$_OAI3_", 6 },
- { "$_AOI4_", 8 },
- { "$_OAI4_", 8 },
- { "$_MUX_", 4 }
- };
-
- if (gate_cost.count(type))
- return gate_cost.at(type);
-
- if (parameters.empty() && design && design->module(type))
- {
- RTLIL::Module *mod = design->module(type);
-
- if (mod->attributes.count("\\cost"))
- return mod->attributes.at("\\cost").as_int();
-
- dict<RTLIL::IdString, int> local_mod_cost_cache;
- if (mod_cost_cache == nullptr)
- mod_cost_cache = &local_mod_cost_cache;
-
- if (mod_cost_cache->count(mod->name))
- return mod_cost_cache->at(mod->name);
-
- int module_cost = 1;
- for (auto c : mod->cells())
- module_cost += get_cell_cost(c, mod_cost_cache);
-
- (*mod_cost_cache)[mod->name] = module_cost;
- return module_cost;
- }
-
- log_warning("Can't determine cost of %s cell (%d parameters).\n", log_id(type), GetSize(parameters));
- return 1;
-}
-
-YOSYS_NAMESPACE_END