From: Clifford Wolf <clifford@clifford.at>
Date: Sat, 8 Feb 2014 13:21:34 +0000 (+0100)
Subject: Added opt -purge (frontend to opt_clean -purge)
X-Git-Tag: yosys-0.2.0~42
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=82c98bbbe60eb9246d399e712e92e4ff514402fa;p=yosys.git

Added opt -purge (frontend to opt_clean -purge)
---

diff --git a/passes/opt/opt.cc b/passes/opt/opt.cc
index 8d259f34d..8f4725e1c 100644
--- a/passes/opt/opt.cc
+++ b/passes/opt/opt.cc
@@ -31,7 +31,7 @@ struct OptPass : public Pass {
 	{
 		//   |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
 		log("\n");
-		log("    opt [-mux_undef] [-mux_bool] [-undriven] [selection]\n");
+		log("    opt [-purge] [-mux_undef] [-mux_bool] [-undriven] [selection]\n");
 		log("\n");
 		log("This pass calls all the other opt_* passes in a useful order. This performs\n");
 		log("a series of trivial optimizations and cleanups. This pass executes the other\n");
@@ -45,13 +45,14 @@ struct OptPass : public Pass {
 		log("        opt_reduce\n");
 		log("        opt_share\n");
 		log("        opt_rmdff\n");
-		log("        opt_clean\n");
+		log("        opt_clean [-purge]\n");
 		log("        opt_const [-mux_undef] [-mux_bool] [-undriven]\n");
 		log("    while [changed design]\n");
 		log("\n");
 	}
 	virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
 	{
+		std::string opt_clean_args;
 		std::string opt_const_args;
 
 		log_header("Executing OPT pass (performing simple optimizations).\n");
@@ -59,6 +60,10 @@ struct OptPass : public Pass {
 
 		size_t argidx;
 		for (argidx = 1; argidx < args.size(); argidx++) {
+			if (args[argidx] == "-purge") {
+				opt_clean_args += " -purge";
+				continue;
+			}
 			if (args[argidx] == "-mux_undef") {
 				opt_const_args += " -mux_undef";
 				continue;
@@ -86,7 +91,7 @@ struct OptPass : public Pass {
 			Pass::call(design, "opt_reduce");
 			Pass::call(design, "opt_share");
 			Pass::call(design, "opt_rmdff");
-			Pass::call(design, "opt_clean");
+			Pass::call(design, "opt_clean" + opt_clean_args);
 			Pass::call(design, "opt_const" + opt_const_args);
 			if (OPT_DID_SOMETHING == false)
 				break;