From: Eddie Hung <eddie@fpgeh.com>
Date: Tue, 7 Jan 2020 20:52:03 +0000 (-0800)
Subject: Add RTLIL::constpad, init by yosys_setup(); use for abc9
X-Git-Tag: working-ls180~870^2~21
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a63e2508fcca395e795029d5c57c59acc63a9959;p=yosys.git

Add RTLIL::constpad, init by yosys_setup(); use for abc9
---

diff --git a/kernel/rtlil.cc b/kernel/rtlil.cc
index ab4f4f377..f286d139f 100644
--- a/kernel/rtlil.cc
+++ b/kernel/rtlil.cc
@@ -46,6 +46,7 @@ IdString RTLIL::ID::Y;
 IdString RTLIL::ID::keep;
 IdString RTLIL::ID::whitebox;
 IdString RTLIL::ID::blackbox;
+dict<std::string, std::string> RTLIL::constpad;
 
 RTLIL::Const::Const()
 {
diff --git a/kernel/rtlil.h b/kernel/rtlil.h
index e5b24cc02..6251d265d 100644
--- a/kernel/rtlil.h
+++ b/kernel/rtlil.h
@@ -377,6 +377,8 @@ namespace RTLIL
 		extern IdString blackbox;
 	};
 
+	extern dict<std::string, std::string> constpad;
+
 	static inline std::string escape_id(std::string str) {
 		if (str.size() > 0 && str[0] != '\\' && str[0] != '$')
 			return "\\" + str;
diff --git a/kernel/yosys.cc b/kernel/yosys.cc
index 5018a4888..6c8427c19 100644
--- a/kernel/yosys.cc
+++ b/kernel/yosys.cc
@@ -524,6 +524,15 @@ void yosys_setup()
 		PyRun_SimpleString("import sys");
 	#endif
 
+	RTLIL::constpad["abc9.script.default"] = "&scorr; &sweep; &dc2; &dch -f; &ps; &if {C} {W} {D} -v; &mfs";
+	RTLIL::constpad["abc9.script.default.area"] = "&scorr; &sweep; &dc2; &dch -f; &ps; &if {C} {W} {D} -a -v; &mfs";
+	RTLIL::constpad["abc9.script.default.fast"] = "&if {W} {D}";
+	RTLIL::constpad["abc9.script.flow3"] = "&scorr; &sweep;" \
+		"&if {C} {W} {D}; &save; &st; &syn2; &if {C} {W} {D} -v; &save; &load; "\
+		"&st; &if {C} -g -K 6; &dch -f; &if {C} {W} {D} -v; &save; &load; "\
+		"&st; &if {C} -g -K 6; &synch2; &if {C} {W} {D} -v; &save; &load; "\
+		"&mfs";
+
 	Pass::init_register();
 	yosys_design = new RTLIL::Design;
 	yosys_celltypes.setup();
diff --git a/passes/cmds/scratchpad.cc b/passes/cmds/scratchpad.cc
index 7ec55b78e..34ec0863a 100644
--- a/passes/cmds/scratchpad.cc
+++ b/passes/cmds/scratchpad.cc
@@ -70,8 +70,10 @@ struct ScratchpadPass : public Pass {
 		{
 			if (args[argidx] == "-get" && argidx+1 < args.size()) {
 				string identifier = args[++argidx];
-				if (design->scratchpad.count(identifier)){
+				if (design->scratchpad.count(identifier)) {
 					log("%s\n", design->scratchpad_get_string(identifier).c_str());
+				} else if (RTLIL::constpad.count(identifier)) {
+					log("%s\n", RTLIL::constpad.at(identifier).c_str());
 				} else {
 					log("\"%s\" not set\n", identifier.c_str());
 				}
@@ -79,6 +81,8 @@ struct ScratchpadPass : public Pass {
 			}
 			if (args[argidx] == "-set" && argidx+2 < args.size()) {
 				string identifier = args[++argidx];
+				if (RTLIL::constpad.count(identifier))
+					log_error("scratchpad entry \"%s\" is a global constant\n", identifier.c_str());
 				string value = args[++argidx];
 				if (value.front() == '\"' && value.back() == '\"') value = value.substr(1, value.size() - 2);
 				design->scratchpad_set_string(identifier, value);
@@ -92,8 +96,15 @@ struct ScratchpadPass : public Pass {
 			if (args[argidx] == "-copy" && argidx+2 < args.size()) {
 				string identifier_from = args[++argidx];
 				string identifier_to = args[++argidx];
-				if (design->scratchpad.count(identifier_from) == 0) log_error("\"%s\" not set\n", identifier_from.c_str());
-				string value = design->scratchpad_get_string(identifier_from);
+				string value;
+				if (design->scratchpad.count(identifier_from))
+					value = design->scratchpad_get_string(identifier_from);
+				else if (RTLIL::constpad.count(identifier_from))
+					value = RTLIL::constpad.at(identifier_from);
+				else
+					log_error("\"%s\" not set\n", identifier_from.c_str());
+				if (RTLIL::constpad.count(identifier_to))
+					log_error("scratchpad entry \"%s\" is a global constant\n", identifier_to.c_str());
 				design->scratchpad_set_string(identifier_to, value);
 				continue;
 			}
@@ -102,10 +113,10 @@ struct ScratchpadPass : public Pass {
 				string expected = args[++argidx];
 				if (expected.front() == '\"' && expected.back() == '\"') expected = expected.substr(1, expected.size() - 2);
 				if (design->scratchpad.count(identifier) == 0)
-					log_error("Assertion failed: scratchpad entry '%s' is not defined\n", identifier.c_str());
+					log_error("scratchpad entry '%s' is not defined\n", identifier.c_str());
 				string value = design->scratchpad_get_string(identifier);
 				if (value != expected) {
-					log_error("Assertion failed: scratchpad entry '%s' is set to '%s' instead of the asserted '%s'\n",
+					log_error("scratchpad entry '%s' is set to '%s' instead of the asserted '%s'\n",
 					           identifier.c_str(), value.c_str(), expected.c_str());
 				}
 				continue;
@@ -113,13 +124,13 @@ struct ScratchpadPass : public Pass {
 			if (args[argidx] == "-assert-set" && argidx+1 < args.size()) {
 				string identifier = args[++argidx];
 				if (design->scratchpad.count(identifier) == 0)
-					log_error("Assertion failed: scratchpad entry '%s' is not defined\n", identifier.c_str());
+					log_error("scratchpad entry '%s' is not defined\n", identifier.c_str());
 				continue;
 			}
 			if (args[argidx] == "-assert-unset" && argidx+1 < args.size()) {
 				string identifier = args[++argidx];
 				if (design->scratchpad.count(identifier) > 0)
-					log_error("Assertion failed: scratchpad entry '%s' is defined\n", identifier.c_str());
+					log_error("scratchpad entry '%s' is defined\n", identifier.c_str());
 				continue;
 			}
 			break;
diff --git a/passes/techmap/abc9.cc b/passes/techmap/abc9.cc
index 8cb34e523..486b9313b 100644
--- a/passes/techmap/abc9.cc
+++ b/passes/techmap/abc9.cc
@@ -22,20 +22,6 @@
 // Berkeley Logic Synthesis and Verification Group, ABC: A System for Sequential Synthesis and Verification
 // http://www.eecs.berkeley.edu/~alanmi/abc/
 
-#if 0
-// Based on &flow3 - better QoR but more experimental
-#define ABC_COMMAND_LUT "&st; &ps -l; &sweep -v; &scorr; " \
-						"&st; &if {W}; &save; &st; &syn2; &if {W} -v; &save; &load; "\
-						"&st; &if -g -K 6; &dch -f; &if {W} -v; &save; &load; "\
-						"&st; &if -g -K 6; &synch2; &if {W} -v; &save; &load; "\
-						"&mfs; &ps -l"
-#else
-#define ABC_COMMAND_LUT "&st; &scorr; &sweep; &dc2; &st; &dch -f; &ps; &if {W} {D} -v; &mfs; &ps -l"
-#endif
-
-
-#define ABC_FAST_COMMAND_LUT "&st; &if {W} {D}"
-
 #include "kernel/register.h"
 #include "kernel/sigtools.h"
 #include "kernel/celltypes.h"
@@ -292,7 +278,8 @@ void abc9_module(RTLIL::Design *design, RTLIL::Module *module, std::string scrip
 		} else
 			abc9_script += stringf("source %s", script_file.c_str());
 	} else if (!lut_costs.empty() || !lut_file.empty()) {
-		abc9_script += fast_mode ? ABC_FAST_COMMAND_LUT : ABC_COMMAND_LUT;
+		abc9_script += fast_mode ? RTLIL::constpad.at("abc9.script.default.fast")
+			: RTLIL::constpad.at("abc9.script.default");
 	} else
 		log_abort();
 
@@ -305,11 +292,14 @@ void abc9_module(RTLIL::Design *design, RTLIL::Module *module, std::string scrip
 	for (size_t pos = abc9_script.find("{W}"); pos != std::string::npos; pos = abc9_script.find("{W}", pos))
 		abc9_script = abc9_script.substr(0, pos) + wire_delay + abc9_script.substr(pos+3);
 
+	for (size_t pos = abc9_script.find("{C}"); pos != std::string::npos; pos = abc9_script.find("{C}", pos))
+		abc9_script = abc9_script.substr(0, pos) + design->scratchpad_get_string("abc9.if.C", "") + abc9_script.substr(pos+3);
+
 	if (nomfs)
 		for (size_t pos = abc9_script.find("&mfs"); pos != std::string::npos; pos = abc9_script.find("&mfs", pos))
 			abc9_script = abc9_script.erase(pos, strlen("&mfs"));
 
-	abc9_script += stringf("; &write -n %s/output.aig", tempdir_name.c_str());
+	abc9_script += stringf("&ps -l; &write -n %s/output.aig", tempdir_name.c_str());
 	abc9_script = add_echos_to_abc9_cmd(abc9_script);
 
 	for (size_t i = 0; i+1 < abc9_script.size(); i++)
@@ -758,18 +748,15 @@ struct Abc9Pass : public Pass {
 		log("\n");
 		log("        if no -script parameter is given, the following scripts are used:\n");
 		log("\n");
-		log("        for -lut/-luts (only one LUT size):\n");
-		log("%s\n", fold_abc9_cmd(ABC_COMMAND_LUT).c_str());
-		log("\n");
-		log("        for -lut/-luts (different LUT sizes):\n");
-		log("%s\n", fold_abc9_cmd(ABC_COMMAND_LUT).c_str());
+		log("        for -lut/-luts:\n");
+		log("%s\n", fold_abc9_cmd(RTLIL::constpad.at("abc9.script.default")).c_str());
 		log("\n");
 		log("    -fast\n");
 		log("        use different default scripts that are slightly faster (at the cost\n");
 		log("        of output quality):\n");
 		log("\n");
 		log("        for -lut/-luts:\n");
-		log("%s\n", fold_abc9_cmd(ABC_FAST_COMMAND_LUT).c_str());
+		log("%s\n", fold_abc9_cmd(RTLIL::constpad.at("abc9.script.default.fast")).c_str());
 		log("\n");
 		log("    -D <picoseconds>\n");
 		log("        set delay target. the string {D} in the default scripts above is\n");
@@ -883,9 +870,6 @@ struct Abc9Pass : public Pass {
 			}
 			if (arg == "-script" && argidx+1 < args.size()) {
 				script_file = args[++argidx];
-				rewrite_filename(script_file);
-				if (!script_file.empty() && !is_absolute_path(script_file) && script_file[0] != '+')
-					script_file = std::string(pwd) + "/" + script_file;
 				continue;
 			}
 			if (arg == "-D" && argidx+1 < args.size()) {