use out_dx constraints instead of certain registers

[libfirm] / ir / be / benode_t.h

diff --git a/ir/be/benode_t.h b/ir/be/benode_t.h
index ab04341..e71d775 100644 (file)
--- a/ir/be/benode_t.h
+++ b/ir/be/benode_t.h
@@ -40,7 +40,7 @@ const arch_irn_handler_t *be_node_get_irn_handler(const be_node_factory_t *f);
 
 ir_node *new_Spill(const be_node_factory_t *factory,
     const arch_register_class_t *cls,
-    ir_graph *irg, ir_node *bl, ir_node *node_to_spill);
+    ir_graph *irg, ir_node *bl, ir_node *node_to_spill, ir_node *ctx);
 
 ir_node *new_Reload(const be_node_factory_t *factory,
     const arch_register_class_t *cls, ir_graph *irg,
@@ -57,7 +57,8 @@ ir_node *new_Copy(const be_node_factory_t *factory,
 ir_node *be_spill(
                const be_node_factory_t *factory,
                const arch_env_t *arch_env,
-               ir_node *irn);
+               ir_node *irn,
+               ir_node *spill_ctx);
 
 ir_node *be_reload(
                const be_node_factory_t *factory,
@@ -65,8 +66,31 @@ ir_node *be_reload(
                const arch_register_class_t *cls,
                ir_node *irn, int pos, ir_mode *mode, ir_node *spill);
 
-int is_Spill(const be_node_factory_t *f, const ir_node *irn);
+int be_is_Spill(const ir_node *irn);
+int be_is_Reload(const ir_node *irn);
+int be_is_Copy(const ir_node *irn);
+int be_is_Perm(const ir_node *irn);
 
+void set_Spill_offset(ir_node *irn, unsigned offset);
+unsigned get_Spill_offset(ir_node *irn);
+
+ir_node *get_Spill_context(const ir_node *irn);
+
+
+/**
+ * Modify the output register requirements of a Perm.
+ * This function incur register constraints to an output value of a Perm.
+ * This is used when handling register constraints in general,
+ * see beconstrperm.c
+ */
+void be_set_Perm_out_req(ir_node *irn, int pos, const arch_register_req_t *req);
+
+/**
+ * Insert a Perm node after a specific node in the schedule.
+ * The Perm permutes over all values live at the given node.
+ * This means that all liveness intervals are cut apart at this
+ * location in the program.
+ */
 ir_node *insert_Perm_after(const be_main_env_t *env,
                                                   const arch_register_class_t *cls,
                                                   dom_front_info_t *dom_front,