add an be_node_add_flags function

[r15901]

diff --git a/ir/be/benode.c b/ir/be/benode.c
index 18e204d..ea3339c 100644 (file)
--- a/ir/be/benode.c
+++ b/ir/be/benode.c
@@ -1001,6 +1001,12 @@ void be_node_set_flags(ir_node *irn, int pos, arch_irn_flags_t flags)
        bereq->flags = flags;
 }
 
+void be_node_add_flags(ir_node *irn, int pos, arch_irn_flags_t flags)
+{
+       be_req_t *bereq = get_be_req(irn, pos);
+       bereq->flags |= flags;
+}
+
 void be_node_set_reg_class(ir_node *irn, int pos, const arch_register_class_t *cls)
 {
        arch_register_req_t *req = get_req(irn, pos);

diff --git a/ir/be/benode_t.h b/ir/be/benode_t.h
index 6bc2330..a8b5a73 100644 (file)
--- a/ir/be/benode_t.h
+++ b/ir/be/benode_t.h
@@ -467,6 +467,8 @@ void be_set_constr_limited(ir_node *irn, int pos, const arch_register_req_t *req
  */
 void be_node_set_flags(ir_node *irn, int pos, arch_irn_flags_t flags);
 
+void be_node_add_flags(ir_node *irn, int pos, arch_irn_flags_t flags);
+
 /**
  * Set the register class of a node.
  * @param irn The node itself.