node generator: don't create pn_ and n_ enums if there are no members

[r28015]

diff --git a/ir/be/scripts/generate_new_opcodes.pl b/ir/be/scripts/generate_new_opcodes.pl
index e10460e..7b96086 100755 (executable)
--- a/ir/be/scripts/generate_new_opcodes.pl
+++ b/ir/be/scripts/generate_new_opcodes.pl
@@ -530,18 +530,20 @@ foreach my $op (keys(%nodes)) {
 
                $num_outs = $#outs + 1;
 
-               $obst_proj .= "\nenum pn_${op} {\n";
-
-               for (my $idx = 0; $idx <= $#outs; $idx++) {
-                       # check, if we have additional flags annotated to out
-                       if ($outs[$idx] =~ /:((S|I)(\|(S|I))*)/) {
-                               push(@out_flags, $1);
-                               $outs[$idx] =~ s/:((S|I)(\|(S|I))*)//;
+               if ($num_outs > 0) {
+                       $obst_proj .= "\nenum pn_${op} {\n";
+
+                       for (my $idx = 0; $idx <= $#outs; $idx++) {
+                               # check, if we have additional flags annotated to out
+                               if ($outs[$idx] =~ /:((S|I)(\|(S|I))*)/) {
+                                       push(@out_flags, $1);
+                                       $outs[$idx] =~ s/:((S|I)(\|(S|I))*)//;
+                               }
+                               $obst_proj .= "\tpn_${op}_".$outs[$idx]." = ${idx},\n";
                        }
-                       $obst_proj .= "\tpn_${op}_".$outs[$idx]." = ${idx},\n";
-               }
 
-               $obst_proj .= "};\n";
+                       $obst_proj .= "};\n";
+               }
                # outs have names, it must be a mode_T node
                if (!defined($n{mode})) {
                        $n{mode} = "mode_T";
@@ -555,11 +557,13 @@ foreach my $op (keys(%nodes)) {
                        die "Fatal error: Op ${op} has different number of ins and arity\n";
                }
 
-               $obst_proj .= "\nenum n_$op {\n";
-               for (my $idx = 0; $idx <= $#ins; $idx++) {
-                       $obst_proj .= "\tn_${op}_".$ins[$idx]." = ${idx},\n";
+               if ($#ins >= 0) {
+                       $obst_proj .= "\nenum n_$op {\n";
+                       for (my $idx = 0; $idx <= $#ins; $idx++) {
+                               $obst_proj .= "\tn_${op}_".$ins[$idx]." = ${idx},\n";
+                       }
+                       $obst_proj .= "};\n";
                }
-               $obst_proj .= "};\n";
        }
 
        # Create opcode