re PR java/14551 (Switch w sign-extended byte and >16 labels causes error in tree.c)

2004-03-12  Andrew Haley  <aph@redhat.com>

        PR java/14551
        * typeck.c (convert): Clear TREE_OVERFLOW after an integer
        conversion.

From-SVN: r79493

gcc/java/ChangeLog

+2004-03-12  Andrew Haley  <aph@redhat.com>
+
+	PR java/14551
+	* typeck.c (convert): Clear TREE_OVERFLOW after an integer
+	conversion.
+
 2004-02-29  Roger Sayle  <roger@eyesopen.com>
 
 	* jcf-parse.c (java_parse_file): Handle the case that input_filename

gcc/java/typeck.c

@@ -137,7 +137,14 @@ convert (tree type, tree expr)
 	  && TARGET_FLOAT_FORMAT == IEEE_FLOAT_FORMAT)
 	return fold (convert_ieee_real_to_integer (type, expr));
       else
-	return fold (convert_to_integer (type, expr));
+	{
+	  /* fold very helpfully sets the overflow status if a type
+	     overflows in a narrowing integer conversion, but Java
+	     doesn't care.  */
+	  tree tmp = fold (convert_to_integer (type, expr));
+	  TREE_OVERFLOW (tmp) = 0;
+	  return tmp;
+	}
     }	  
   if (code == REAL_TYPE)
     return fold (convert_to_real (type, expr));