read-rtl.c (read_rtx_1): Give fatal error if we see a vector with no elements.

	* read-rtl.c (read_rtx_1): Give fatal error if we see a vector
	with no elements.

From-SVN: r94879

gcc/ChangeLog

 2005-02-11  Ian Lance Taylor  <ian@airs.com>
 
+	* read-rtl.c (read_rtx_1): Give fatal error if we see a vector
+	with no elements.
+
 	* tree.c (build_function_type_list): Work correctly if there are
 	no arguments.
 

gcc/read-rtl.c

@@ -1253,6 +1253,9 @@ read_rtx_1 (FILE *infile)
 	      memcpy (&return_vec->elem[0], obstack_finish (&vector_stack),
 		      list_counter * sizeof (rtx));
 	    }
+	  else if (format_ptr[i] == 'E')
+	    fatal_with_file_and_line (infile,
+				      "vector must have at least one element");
 	  XVEC (return_rtx, i) = return_vec;
 	  obstack_free (&vector_stack, NULL);
 	  /* close bracket gotten */