Replace "ILANG" with "RTLIL" everywhere.

The only difference between "RTLIL" and "ILANG" is that the latter is
the text representation of the former, as opposed to the in-memory
graph representation. This distinction serves no purpose but confuses
people: it is not obvious that the ILANG backend writes RTLIL graphs.

Passes `write_ilang` and `read_ilang` are provided as aliases to
`write_rtlil` and `read_rtlil` for compatibility.

7 files changed, 24 insertions, 24 deletions

diff --git a/passes/cmds/bugpoint.cc b/passes/cmds/bugpoint.cc
index 98d42aa83..81d7a34bb 100644
--- a/passes/cmds/bugpoint.cc
+++ b/passes/cmds/bugpoint.cc
@@ -18,10 +18,10 @@
  */
 
 #include "kernel/yosys.h"
-#include "backends/ilang/ilang_backend.h"
+#include "backends/rtlil/rtlil_backend.h"
 
 USING_YOSYS_NAMESPACE
-using namespace ILANG_BACKEND;
+using namespace RTLIL_BACKEND;
 PRIVATE_NAMESPACE_BEGIN
 
 struct BugpointPass : public Pass {
@@ -90,7 +90,7 @@ struct BugpointPass : public Pass {
 		design->sort();
 
 		std::ofstream f("bugpoint-case.il");
-		ILANG_BACKEND::dump_design(f, design, /*only_selected=*/false, /*flag_m=*/true, /*flag_n=*/false);
+		RTLIL_BACKEND::dump_design(f, design, /*only_selected=*/false, /*flag_m=*/true, /*flag_n=*/false);
 		f.close();
 
 		string yosys_cmdline = stringf("%s -qq -L bugpoint-case.log -s %s bugpoint-case.il", yosys_cmd.c_str(), script.c_str());
diff --git a/passes/cmds/show.cc b/passes/cmds/show.cc
index cbed08a3f..a4ad861f6 100644
--- a/passes/cmds/show.cc
+++ b/passes/cmds/show.cc
@@ -605,7 +605,7 @@ struct ShowPass : public Pass {
 		log("        generate a .dot file, or other <format> strings such as 'svg' or 'ps'\n");
 		log("        to generate files in other formats (this calls the 'dot' command).\n");
 		log("\n");
-		log("    -lib <verilog_or_ilang_file>\n");
+		log("    -lib <verilog_or_rtlil_file>\n");
 		log("        Use the specified library file for determining whether cell ports are\n");
 		log("        inputs or outputs. This option can be used multiple times to specify\n");
 		log("        more than one library.\n");
@@ -811,7 +811,7 @@ struct ShowPass : public Pass {
 			if (f.fail())
 				log_error("Can't open lib file `%s'.\n", filename.c_str());
 			RTLIL::Design *lib = new RTLIL::Design;
-			Frontend::frontend_call(lib, &f, filename, (filename.size() > 3 && filename.compare(filename.size()-3, std::string::npos, ".il") == 0 ? "ilang" : "verilog"));
+			Frontend::frontend_call(lib, &f, filename, (filename.size() > 3 && filename.compare(filename.size()-3, std::string::npos, ".il") == 0 ? "rtlil" : "verilog"));
 			libs.push_back(lib);
 		}
 
diff --git a/passes/hierarchy/hierarchy.cc b/passes/hierarchy/hierarchy.cc
index a2a428d15..90b25949d 100644
--- a/passes/hierarchy/hierarchy.cc
+++ b/passes/hierarchy/hierarchy.cc
@@ -224,7 +224,7 @@ bool expand_module(RTLIL::Design *design, RTLIL::Module *module, bool flag_check
 				{
 					{".v", "verilog"},
 					{".sv", "verilog -sv"},
-					{".il", "ilang"}
+					{".il", "rtlil"}
 				};
 
 				for (auto &ext : extensions_list)
diff --git a/passes/techmap/extract.cc b/passes/techmap/extract.cc
index 7278cb680..f5966fac0 100644
--- a/passes/techmap/extract.cc
+++ b/passes/techmap/extract.cc
@@ -354,7 +354,7 @@ struct ExtractPass : public Pass {
 		log("\n");
 		log("This pass looks for subcircuits that are isomorphic to any of the modules\n");
 		log("in the given map file and replaces them with instances of this modules. The\n");
-		log("map file can be a Verilog source file (*.v) or an ilang file (*.il).\n");
+		log("map file can be a Verilog source file (*.v) or an RTLIL source file (*.il).\n");
 		log("\n");
 		log("    -map <map_file>\n");
 		log("        use the modules in this file as reference. This option can be used\n");
@@ -409,7 +409,7 @@ struct ExtractPass : public Pass {
 		log("the following options are to be used instead of the -map option.\n");
 		log("\n");
 		log("    -mine <out_file>\n");
-		log("        mine for frequent subcircuits and write them to the given ilang file\n");
+		log("        mine for frequent subcircuits and write them to the given RTLIL file\n");
 		log("\n");
 		log("    -mine_cells_span <min> <max>\n");
 		log("        only mine for subcircuits with the specified number of cells\n");
@@ -578,7 +578,7 @@ struct ExtractPass : public Pass {
 		}
 
 		if (map_filenames.empty() && mine_outfile.empty())
-			log_cmd_error("Missing option -map <verilog_or_ilang_file> or -mine <output_ilang_file>.\n");
+			log_cmd_error("Missing option -map <verilog_or_rtlil_file> or -mine <output_rtlil_file>.\n");
 
 		RTLIL::Design *map = nullptr;
 
@@ -606,7 +606,7 @@ struct ExtractPass : public Pass {
 						delete map;
 						log_cmd_error("Can't open map file `%s'.\n", filename.c_str());
 					}
-					Frontend::frontend_call(map, &f, filename, (filename.size() > 3 && filename.compare(filename.size()-3, std::string::npos, ".il") == 0 ? "ilang" : "verilog"));
+					Frontend::frontend_call(map, &f, filename, (filename.size() > 3 && filename.compare(filename.size()-3, std::string::npos, ".il") == 0 ? "rtlil" : "verilog"));
 					f.close();
 
 					if (filename.size() <= 3 || filename.compare(filename.size()-3, std::string::npos, ".il") != 0) {
@@ -744,7 +744,7 @@ struct ExtractPass : public Pass {
 			f.open(mine_outfile.c_str(), std::ofstream::trunc);
 			if (f.fail())
 				log_error("Can't open output file `%s'.\n", mine_outfile.c_str());
-			Backend::backend_call(map, &f, mine_outfile, "ilang");
+			Backend::backend_call(map, &f, mine_outfile, "rtlil");
 			f.close();
 		}
 
diff --git a/passes/techmap/techmap.cc b/passes/techmap/techmap.cc
index 4a1a74ce9..5cd35929e 100644
--- a/passes/techmap/techmap.cc
+++ b/passes/techmap/techmap.cc
@@ -985,7 +985,7 @@ struct TechmapPass : public Pass {
 		log("    techmap [-map filename] [selection]\n");
 		log("\n");
 		log("This pass implements a very simple technology mapper that replaces cells in\n");
-		log("the design with implementations given in form of a Verilog or ilang source\n");
+		log("the design with implementations given in form of a Verilog or RTLIL source\n");
 		log("file.\n");
 		log("\n");
 		log("    -map filename\n");
@@ -1212,7 +1212,7 @@ struct TechmapPass : public Pass {
 						if (!map->module(mod->name))
 							map->add(mod->clone());
 				} else {
-					Frontend::frontend_call(map, nullptr, fn, (fn.size() > 3 && fn.compare(fn.size()-3, std::string::npos, ".il") == 0 ? "ilang" : verilog_frontend));
+					Frontend::frontend_call(map, nullptr, fn, (fn.size() > 3 && fn.compare(fn.size()-3, std::string::npos, ".il") == 0 ? "rtlil" : verilog_frontend));
 				}
 		}
 
diff --git a/passes/tests/test_abcloop.cc b/passes/tests/test_abcloop.cc
index 2d80e66e4..ac31e36f1 100644
--- a/passes/tests/test_abcloop.cc
+++ b/passes/tests/test_abcloop.cc
@@ -171,7 +171,7 @@ static void test_abcloop()
 	}
 
 	log("Found viable UUT after %d cycles:\n", create_cycles);
-	Pass::call(design, "write_ilang");
+	Pass::call(design, "write_rtlil");
 	Pass::call(design, "abc");
 
 	log("\n");
diff --git a/passes/tests/test_cell.cc b/passes/tests/test_cell.cc
index 228b6b67a..616981f32 100644
--- a/passes/tests/test_cell.cc
+++ b/passes/tests/test_cell.cc
@@ -678,12 +678,12 @@ struct TestCellPass : public Pass {
 		log("    -s {positive_integer}\n");
 		log("        use this value as rng seed value (default = unix time).\n");
 		log("\n");
-		log("    -f {ilang_file}\n");
-		log("        don't generate circuits. instead load the specified ilang file.\n");
+		log("    -f {rtlil_file}\n");
+		log("        don't generate circuits. instead load the specified RTLIL file.\n");
 		log("\n");
 		log("    -w {filename_prefix}\n");
 		log("        don't test anything. just generate the circuits and write them\n");
-		log("        to ilang files with the specified prefix\n");
+		log("        to RTLIL files with the specified prefix\n");
 		log("\n");
 		log("    -map {filename}\n");
 		log("        pass this option to techmap.\n");
@@ -724,7 +724,7 @@ struct TestCellPass : public Pass {
 	{
 		int num_iter = 100;
 		std::string techmap_cmd = "techmap -assert";
-		std::string ilang_file, write_prefix;
+		std::string rtlil_file, write_prefix;
 		xorshift32_state = 0;
 		std::ofstream vlog_file;
 		bool muxdiv = false;
@@ -750,7 +750,7 @@ struct TestCellPass : public Pass {
 				continue;
 			}
 			if (args[argidx] == "-f" && argidx+1 < GetSize(args)) {
-				ilang_file = args[++argidx];
+				rtlil_file = args[++argidx];
 				num_iter = 1;
 				continue;
 			}
@@ -910,10 +910,10 @@ struct TestCellPass : public Pass {
 				selected_cell_types.push_back(args[argidx]);
 		}
 
-		if (!ilang_file.empty()) {
+		if (!rtlil_file.empty()) {
 			if (!selected_cell_types.empty())
 				log_cmd_error("Do not specify any cell types when using -f.\n");
-			selected_cell_types.push_back(ID(ilang));
+			selected_cell_types.push_back(ID(rtlil));
 		}
 
 		if (selected_cell_types.empty())
@@ -925,12 +925,12 @@ struct TestCellPass : public Pass {
 			for (int i = 0; i < num_iter; i++)
 			{
 				RTLIL::Design *design = new RTLIL::Design;
-				if (cell_type == ID(ilang))
-					Frontend::frontend_call(design, NULL, std::string(), "ilang " + ilang_file);
+				if (cell_type == ID(rtlil))
+					Frontend::frontend_call(design, NULL, std::string(), "rtlil " + rtlil_file);
 				else
 					create_gold_module(design, cell_type, cell_types.at(cell_type), constmode, muxdiv);
 				if (!write_prefix.empty()) {
-					Pass::call(design, stringf("write_ilang %s_%s_%05d.il", write_prefix.c_str(), cell_type.c_str()+1, i));
+					Pass::call(design, stringf("write_rtlil %s_%s_%05d.il", write_prefix.c_str(), cell_type.c_str()+1, i));
 				} else if (edges) {
 					Pass::call(design, "dump gold");
 					run_edges_test(design, verbose);