loop-iv.c (simplify_using_initial_values): Fix oversight in previous change;…

loop-iv.c (simplify_using_initial_values): Fix oversight in previous change; avoid a memory leak when returning early.

	* loop-iv.c (simplify_using_initial_values): Fix oversight in previous
	change; avoid a memory leak when returning early.

From-SVN: r122346

gcc/ChangeLog

+2007-02-27  Bernd Schmidt  <bernd.schmidt@analog.com>
+
+	* loop-iv.c (simplify_using_initial_values): Fix oversight in previous
+	change; avoid a memory leak when returning early.
+	
 2007-02-26  Mark Mitchell  <mark@codesourcery.com>
 
 	* c-decl.c (static_ctors): Move to c-common.c.

gcc/loop-iv.c

@@ -1812,7 +1812,10 @@ simplify_using_initial_values (struct loop *loop, enum rtx_code op, rtx *expr)
 	      return;
 	    }
 	  if (for_each_rtx (expr, altered_reg_used, altered))
-	    return;
+	    {
+	      FREE_REG_SET (altered);
+	      return;
+	    }
 	}
 
       if (!single_pred_p (e->src)