New upstream version 0.7+20180830git0b7a184

1 files changed, 102 insertions, 0 deletions

diff --git a/passes/hierarchy/uniquify.cc b/passes/hierarchy/uniquify.cc
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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.
+ *
+ */
+
+#include "kernel/yosys.h"
+
+USING_YOSYS_NAMESPACE
+PRIVATE_NAMESPACE_BEGIN
+
+struct UniquifyPass : public Pass {
+	UniquifyPass() : Pass("uniquify", "create unique copies of modules") { }
+	void help() YS_OVERRIDE
+	{
+		//   |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
+		log("\n");
+		log("    uniquify [selection]\n");
+		log("\n");
+		log("By default, a module that is instantiated by several other modules is only\n");
+		log("kept once in the design. This preserves the original modularity of the design\n");
+		log("and reduces the overall size of the design in memory. But it prevents certain\n");
+		log("optimizations and other operations on the design. This pass creates unique\n");
+		log("modules for all selected cells. The created modules are marked with the\n");
+		log("'unique' attribute.\n");
+		log("\n");
+		log("This commands only operates on modules that by themself have the 'unique'\n");
+		log("attribute set (the 'top' module is unique implicitly).\n");
+		log("\n");
+	}
+	void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE
+	{
+		log_header(design, "Executing UNIQUIFY pass (creating unique copies of modules).\n");
+
+		size_t argidx;
+		for (argidx = 1; argidx < args.size(); argidx++)
+		{
+			// if (args[argidx] == "-check") {
+			// 	flag_check = true;
+			// 	continue;
+			// }
+		}
+		extra_args(args, argidx, design);
+
+		bool did_something = true;
+		int count = 0;
+
+		while (did_something)
+		{
+			did_something = false;
+
+			for (auto module : design->selected_modules())
+			{
+				if (!module->get_bool_attribute("\\unique") && !module->get_bool_attribute("\\top"))
+					continue;
+
+				for (auto cell : module->selected_cells())
+				{
+					Module *tmod = design->module(cell->type);
+					IdString newname = module->name.str() + "." + log_id(cell->name);
+
+					if (tmod == nullptr)
+						continue;
+
+					if (tmod->get_bool_attribute("\\blackbox"))
+						continue;
+
+					if (tmod->get_bool_attribute("\\unique") && newname == tmod->name)
+						continue;
+
+					log("Creating module %s from %s.\n", log_id(newname), log_id(tmod));
+
+					auto smod = tmod->clone();
+					smod->name = newname;
+					cell->type = newname;
+					smod->set_bool_attribute("\\unique");
+					design->add(smod);
+
+					did_something = true;
+					count++;
+				}
+			}
+		}
+
+		log("Created %d unique modules.\n", count);
+	}
+} UniquifyPass;
+
+PRIVATE_NAMESPACE_END