From 48de7395064be7ee382488b4b239c3c487d533c1 Mon Sep 17 00:00:00 2001
From: steve <steve>
Date: Fri, 17 Mar 2000 21:50:25 +0000
Subject: [PATCH]  Switch to control warnings.

---
 compiler.h  | 14 +++++++++++++-
 elab_net.cc | 20 +++++++++++++++-----
 main.cc     | 25 ++++++++++++++++++++++++-
 3 files changed, 52 insertions(+), 7 deletions(-)

diff --git a/compiler.h b/compiler.h
index 2ef83f54f8..781d14f5c3 100644
--- a/compiler.h
+++ b/compiler.h
@@ -19,7 +19,7 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #if !defined(WINNT) && !defined(macintosh)
-#ident "$Id: compiler.h,v 1.2 2000/02/23 02:56:54 steve Exp $"
+#ident "$Id: compiler.h,v 1.3 2000/03/17 21:50:25 steve Exp $"
 #endif
 
 /*
@@ -33,8 +33,20 @@
 # define INTEGER_WIDTH 32
 #endif
 
+/*
+ * These are flags to enable various sorts of warnings. By default all
+ * the warnings are of, the -W<list> parameter arranges for each to be
+ * enabled. 
+ */
+
+/* Implicit definitions of wires. */
+extern bool warn_implicit;
+
 /*
  * $Log: compiler.h,v $
+ * Revision 1.3  2000/03/17 21:50:25  steve
+ *  Switch to control warnings.
+ *
  * Revision 1.2  2000/02/23 02:56:54  steve
  *  Macintosh compilers do not support ident.
  *
diff --git a/elab_net.cc b/elab_net.cc
index e415c05ccc..1d75e3507e 100644
--- a/elab_net.cc
+++ b/elab_net.cc
@@ -17,12 +17,13 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #if !defined(WINNT) && !defined(macintosh)
-#ident "$Id: elab_net.cc,v 1.25 2000/03/16 19:03:03 steve Exp $"
+#ident "$Id: elab_net.cc,v 1.26 2000/03/17 21:50:25 steve Exp $"
 #endif
 
 # include  "PExpr.h"
 # include  "netlist.h"
 # include  "netmisc.h"
+# include  "compiler.h"
 
 /*
  * Elaborating binary operations generally involves elaborating the
@@ -857,8 +858,11 @@ NetNet* PEIdent::elaborate_net(Design*des, const string&path,
 
 		  sig = new NetNet(scope, path+"."+text_, NetNet::IMPLICIT, 1);
 		  des->add_signal(sig);
-		  cerr << get_line() << ": warning: Implicitly defining "
-			"wire " << path << "." << text_ << "." << endl;
+
+		  if (warn_implicit)
+			cerr << get_line() << ": warning: implicit "
+			      " definition of wire " << path << "." <<
+			      text_ << "." << endl;
 	    }
       }
 
@@ -998,8 +1002,11 @@ NetNet* PEIdent::elaborate_lnet(Design*des, const string&path) const
 	      /* Fine, create an implicit wire as an l-value. */
 	    sig = new NetNet(0, path+"."+text_, NetNet::IMPLICIT, 1);
 	    des->add_signal(sig);
-	    cerr << get_line() << ": warning: Implicitly defining "
-		  "wire " << path << "." << text_ << "." << endl;
+
+	    if (warn_implicit)
+		  cerr << get_line() << ": warning: implicit "
+			" definition of wire " << path << "." <<
+			text_ << "." << endl;
       }
 
       assert(sig);
@@ -1353,6 +1360,9 @@ NetNet* PEUnary::elaborate_net(Design*des, const string&path,
 
 /*
  * $Log: elab_net.cc,v $
+ * Revision 1.26  2000/03/17 21:50:25  steve
+ *  Switch to control warnings.
+ *
  * Revision 1.25  2000/03/16 19:03:03  steve
  *  Revise the VVM backend to use nexus objects so that
  *  drivers and resolution functions can be used, and
diff --git a/main.cc b/main.cc
index aa08b307c0..624b26a3a8 100644
--- a/main.cc
+++ b/main.cc
@@ -19,7 +19,7 @@ const char COPYRIGHT[] =
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #if !defined(WINNT) && !defined(macintosh)
-#ident "$Id: main.cc,v 1.29 2000/02/23 02:56:54 steve Exp $"
+#ident "$Id: main.cc,v 1.30 2000/03/17 21:50:25 steve Exp $"
 #endif
 
 const char NOTICE[] =
@@ -50,6 +50,7 @@ const char NOTICE[] =
 # include  "pform.h"
 # include  "netlist.h"
 # include  "target.h"
+# include  "compiler.h"
 
 const char VERSION[] = "$Name:  $ $State: Exp $";
 
@@ -58,6 +59,12 @@ string start_module = "";
 
 map<string,string> flags;
 
+/*
+ * These are the warning enable flags.
+ */
+bool warn_implicit = false;
+
+
 static void parm_to_flagmap(const string&flag)
 {
       string key, value;
@@ -118,6 +125,7 @@ int main(int argc, char*argv[])
       const char* net_path = 0;
       const char* out_path = 0;
       const char* pf_path = 0;
+      const char* warn_en = "";
       int opt;
       unsigned flag_errors = 0;
       queue<net_func> net_func_queue;
@@ -165,6 +173,9 @@ int main(int argc, char*argv[])
 	    cout << COPYRIGHT << endl;
 	    cout << endl << NOTICE << endl;
 	    return 0;
+	  case 'W':
+	    warn_en = optarg;
+	    break;
 	  default:
 	    flag_errors += 1;
 	    break;
@@ -188,6 +199,15 @@ int main(int argc, char*argv[])
 	    return 1;
       }
 
+	/* Scan the warnings enable string for warning flags. */
+      for (const char*cp = warn_en ;  *cp ;  cp += 1) switch (*cp) {
+	  case 'i':
+	    warn_implicit = true;
+	    break;
+	  default:
+	    break;
+      }
+
 	/* Parse the input. Make the pform. */
       map<string,Module*> modules;
       map<string,PUdp*>   primitives;
@@ -287,6 +307,9 @@ int main(int argc, char*argv[])
 
 /*
  * $Log: main.cc,v $
+ * Revision 1.30  2000/03/17 21:50:25  steve
+ *  Switch to control warnings.
+ *
  * Revision 1.29  2000/02/23 02:56:54  steve
  *  Macintosh compilers do not support ident.
  *