fixed precedence constraint

[libfirm] / ir / be / belive.h

diff --git a/ir/be/belive.h b/ir/be/belive.h
index fddbcdb..adb8126 100644 (file)
--- a/ir/be/belive.h
+++ b/ir/be/belive.h
@@ -116,8 +116,9 @@ int (be_is_live_end)(const be_lv_t *lv, const ir_node *block, const ir_node *irn
 /**
  * Check, if the SSA dominance property is fulfilled.
  * @param irg The graph.
+ * @return   1 if dominance property is fulfilled, 0 otherwise
  */
-void be_check_dominance(ir_graph *irg);
+int be_check_dominance(ir_graph *irg);
 
 /**
  * The liveness transfer function.
@@ -144,6 +145,8 @@ pset *be_liveness_end_of_block(const be_lv_t *lv, const arch_env_t *arch_env, co
 
 /**
  * Compute a set of nodes which are live at another node.
+ * BEWARE: This is the liveness immediately after the node,
+ *         so the node itself is alive but it's operands maybe not.
  * @param arch_env The architecture environment.
  * @param cls      The register class to consider.
  * @param pos      The node.
@@ -152,6 +155,18 @@ pset *be_liveness_end_of_block(const be_lv_t *lv, const arch_env_t *arch_env, co
  */
 pset *be_liveness_nodes_live_at(const be_lv_t *lv, const arch_env_t *arch_env, const arch_register_class_t *cls, const ir_node *pos, pset *live);
 
+/**
+ * Compute a set of nodes which are live at another node.
+ * BEWARE: This is the liveness immediately before the node,
+ *         so the node itself is not alive but it's operands are.
+ * @param arch_env The architecture environment.
+ * @param cls      The register class to consider.
+ * @param pos      The node.
+ * @param live     The set to put them into.
+ * @return live.
+ */
+pset *be_liveness_nodes_live_at_input(const be_lv_t *lv, const arch_env_t *arch_env, const arch_register_class_t *cls, const ir_node *pos, pset *live);
+
 
 /**
  * FIXME: Need comment