* mips.md (trap_if): Use "$0" for the value zero.

From-SVN: r24053

gcc/ChangeLog

+Wed Dec  2 00:47:31 1998  Jeffrey A Law  (law@cygnus.com)
+
+	* mips.md (trap_if): Use "$0" for the value zero.
+
 Tue Dec  1 20:49:49 1998  Ulrich Drepper  <drepper@cygnus.com>
 			  Stephen L Moshier  <moshier@world.std.com>
 			  Richard Henderson  <rth@cygnus.com>

gcc/config/mips/mips.md

@@ -2431,10 +2431,22 @@
 	&& REGNO (operands[1]) == 0)
       have_dep_anti = 1;
   if (! have_dep_anti)
-    if (GENERATE_BRANCHLIKELY)
-      return \"%(beql\\t%0,%1,.+8\\n\\tbreak\\t%2%)\";
-    else
-      return \"%(bne\\t%0,%1,.+12\\n\\tnop\\n\\tbreak\\t%2%)\";
+    {
+      if (GENERATE_BRANCHLIKELY)
+	{
+          if (GET_CODE (operands[1]) == CONST_INT)
+	    return \"%(beql\\t%0,$0,.+8\\n\\tbreak\\t%2%)\";
+	  else
+	    return \"%(beql\\t%0,%1,.+8\\n\\tbreak\\t%2%)\";
+	}
+      else
+	{
+          if (GET_CODE (operands[1]) == CONST_INT)
+	    return \"%(bne\\t%0,$0,.+12\\n\\tnop\\n\\tbreak\\t%2%)\";
+	  else
+	    return \"%(bne\\t%0,%1,.+12\\n\\tnop\\n\\tbreak\\t%2%)\";
+	}
+    }
   return \"\";
 }"
   [(set_attr "type" "unknown")