c-common.c (decl_attributes): For TYPE_DECLs attach the attribute to the decl.

	* c-common.c (decl_attributes):  For TYPE_DECLs attach the
        attribute to the decl.
        * c-decl.c (pushdecl): Propagate the USED attribute to the
        type copy.

From-SVN: r33716

gcc/ChangeLog

+2000-05-05  Catherine Moore  <clm@cygnus.com>
+
+	* c-common.c (decl_attributes):  For TYPE_DECLs attach the
+	attribute to the decl.
+	* c-decl.c (pushdecl): Propagate the USED attribute to the 
+	type copy.
+
 2000-05-05  Richard Henderson  <rth@cygnus.com>
 
 	* rtlanal.c (reg_overlap_mentioned_p): Treat parallels in the

gcc/c-common.c

@@ -604,7 +604,10 @@ decl_attributes (node, attributes, prefix_attributes)
 
 	case A_UNUSED:
 	  if (is_type)
-	    TREE_USED (type) = 1;
+	    if (decl)
+	      TREE_USED (decl) = 1;
+	    else
+	      TREE_USED (type) = 1;
 	  else if (TREE_CODE (decl) == PARM_DECL
 		   || TREE_CODE (decl) == VAR_DECL
 		   || TREE_CODE (decl) == FUNCTION_DECL

gcc/c-decl.c

@@ -2139,6 +2139,7 @@ pushdecl (x)
 	      DECL_ORIGINAL_TYPE (x) = tt;
               tt = build_type_copy (tt);
               TYPE_NAME (tt) = x;
+	      TREE_USED (tt) = TREE_USED (x);
               TREE_TYPE (x) = tt;
             }
         }