yosys/passes/silimate/sat_clockgate.cc

/*
 *  yosys -- Yosys Open SYnthesis Suite
 *
 *  Copyright (C) 2024  Silimate Inc.
 *
 *  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/sigtools.h"

USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN

struct SatClockgatePass : public Pass {
	SatClockgatePass() : Pass("sat_clockgate", "SAT-based clock gating analysis") { }

	void help() override
	{
		log("\n");
		log("    sat_clockgate [selection]\n");
		log("\n");
		log("This command performs SAT-based clock gating analysis.\n");
		log("\n");
	}

	void execute(std::vector<std::string> args, RTLIL::Design *design) override
	{
		log_header(design, "Executing SAT_CLOCKGATE pass.\n");

		size_t argidx;
		for (argidx = 1; argidx < args.size(); argidx++) {
			// Parse options here
			break;
		}
		extra_args(args, argidx, design);

		for (auto module : design->selected_modules()) {
			log("Processing module %s...\n", log_id(module));
			// TODO: Implement SAT-based clock gating logic
		}
	}
} SatClockgatePass;

PRIVATE_NAMESPACE_END