Short term fix for PR 28490.

* config/ia64/ia64.c (ia64_legitimate_constant_p, cast CONST):
Handle symbol offsets same as they are handled in ia64_expand_move
and move_operand.

From-SVN: r116983

gcc/ChangeLog

+2006-09-15  Jim Wilson  <wilson@specifix.com>
+
+	* config/ia64/ia64.c (ia64_legitimate_constant_p, cast CONST):
+	Handle symbol offsets same as they are handled in ia64_expand_move
+	and move_operand.
+
 2006-09-16  Andreas Tobler  <a.tobler@schweiz.org>
 
 	* loop-doloop.c (doloop_optimize): Change type of max_cost to int.

gcc/config/ia64/ia64.c

@@ -815,7 +815,29 @@ ia64_legitimate_constant_p (rtx x)
 
     case CONST:
     case SYMBOL_REF:
-      return tls_symbolic_operand_type (x) == 0;
+      /* ??? Short term workaround for PR 28490.  We must make the code here
+	 match the code in ia64_expand_move and move_operand, even though they
+	 are both technically wrong.  */
+      if (tls_symbolic_operand_type (x) == 0)
+	{
+	  HOST_WIDE_INT addend = 0;
+	  rtx op = x;
+
+	  if (GET_CODE (op) == CONST
+	      && GET_CODE (XEXP (op, 0)) == PLUS
+	      && GET_CODE (XEXP (XEXP (op, 0), 1)) == CONST_INT)
+	    {
+	      addend = INTVAL (XEXP (XEXP (op, 0), 1));
+	      op = XEXP (XEXP (op, 0), 0);
+	    }
+
+	  if (any_offset_symbol_operand (op, GET_MODE (op)))
+	    return true;
+	  if (aligned_offset_symbol_operand (op, GET_MODE (op)))
+	    return (addend & 0x3fff) == 0;
+	  return false;
+	}
+      return false;
 
     case CONST_VECTOR:
       {