graphite.c (stmt_simple_for_scop_p): Also handle cases when gimple_call_lhs is NULL.

2009-01-20  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (stmt_simple_for_scop_p): Also handle cases when
	gimple_call_lhs is NULL.

From-SVN: r143517

gcc/ChangeLog

+2009-01-20  Sebastian Pop  <sebastian.pop@amd.com>
+
+	* graphite.c (stmt_simple_for_scop_p): Also handle cases when
+	gimple_call_lhs is NULL.
+
 2008-01-20  Paolo Bonzini  <bonzini@gnu.org>
 
 	PR target/38868

gcc/graphite.c

@@ -1040,14 +1040,12 @@ stmt_simple_for_scop_p (basic_block scop_entry, gimple stmt)
 	size_t n = gimple_call_num_args (stmt);
 	tree lhs = gimple_call_lhs (stmt);
 
-	for (i = 0; i < n; i++)
-	  {
-	    tree arg = gimple_call_arg (stmt, i);
+	if (lhs && !is_simple_operand (loop, stmt, lhs))
+	  return false;
 
-	    if (!(is_simple_operand (loop, stmt, lhs)
-		  && is_simple_operand (loop, stmt, arg)))
-	      return false;
-	  }
+	for (i = 0; i < n; i++)
+	  if (!is_simple_operand (loop, stmt, gimple_call_arg (stmt, i)))
+	    return false;
 
 	return true;
       }