From ea547bcaa355239d927a8b43fde37fcfdaf71ffb Mon Sep 17 00:00:00 2001 From: Clifford Wolf Date: Mon, 29 Apr 2019 13:38:56 +0200 Subject: Add "peepopt" skeleton Signed-off-by: Clifford Wolf --- passes/pmgen/peepopt.cc | 60 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 passes/pmgen/peepopt.cc (limited to 'passes/pmgen/peepopt.cc') diff --git a/passes/pmgen/peepopt.cc b/passes/pmgen/peepopt.cc new file mode 100644 index 000000000..e9aa8e37a --- /dev/null +++ b/passes/pmgen/peepopt.cc @@ -0,0 +1,60 @@ +/* + * yosys -- Yosys Open SYnthesis Suite + * + * Copyright (C) 2012 Clifford Wolf + * + * 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" +#include "passes/pmgen/peepopt_pm.h" + +USING_YOSYS_NAMESPACE +PRIVATE_NAMESPACE_BEGIN + +struct PeepoptPass : public Pass { + PeepoptPass() : Pass("peepopt", "collection of peephole optimizers") { } + void help() YS_OVERRIDE + { + // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| + log("\n"); + log(" peepopt [options] [selection]\n"); + log("\n"); + log("This pass applies a collection of peephole optimizers to the current design.\n"); + log("\n"); + } + void execute(std::vector args, RTLIL::Design *design) YS_OVERRIDE + { + log_header(design, "Executing PEEOPOPT pass (run peephole optimizers).\n"); + + size_t argidx; + for (argidx = 1; argidx < args.size(); argidx++) + { + // if (args[argidx] == "-singleton") { + // singleton_mode = true; + // continue; + // } + break; + } + extra_args(args, argidx, design); + + for (auto module : design->selected_modules()) { + peepopt_pm pm(module, module->selected_cells()); + pm.run_shiftmul(); + } + } +} PeepoptPass; + +PRIVATE_NAMESPACE_END -- cgit v1.2.3