return new irn class

[libfirm] / ir / be / benode_t.h

diff --git a/ir/be/benode_t.h b/ir/be/benode_t.h
index 499fb11..55bb360 100644 (file)
--- a/ir/be/benode_t.h
+++ b/ir/be/benode_t.h
@@ -12,57 +12,69 @@
 #ifndef _BENODE_T_H
 #define _BENODE_T_H
 
+#include "firm_config.h"
 #include "pmap.h"
 
 #include "irmode.h"
 #include "irnode.h"
 
+#include "be_t.h"
 #include "bearch.h"
 
-struct _be_node_factory_t {
-  const arch_isa_if_t *isa;
+#define BE_SPILL_NO_OFFSET ((unsigned) -1)
 
-  struct obstack      obst;
-  set                 *ops;
-  pmap                *irn_op_map;
-  pmap                *reg_req_map;
+typedef enum {
+       beo_NoBeOp = 0,
+       beo_Spill,
+       beo_Reload,
+       beo_Perm,
+       beo_Copy,
+       beo_Keep,
+       beo_Last
+} be_opcode_t;
 
-  arch_irn_handler_t  handler;
-  arch_irn_ops_t      irn_ops;
-};
+void be_node_init(void);
 
-typedef struct _be_node_factory_t                      be_node_factory_t;
+const arch_irn_handler_t be_node_irn_handler;
 
-be_node_factory_t *be_node_factory_init(be_node_factory_t *factory,
-    const arch_isa_if_t *isa);
+ir_node *be_new_Spill(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, ir_node *node_to_spill, ir_node *ctx);
+ir_node *be_new_Reload(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, ir_mode *mode, ir_node *spill_node);
+ir_node *be_new_Copy(const arch_register_class_t *cls, ir_graph *irg, ir_node *block, ir_node *in);
+ir_node *be_new_Perm(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, int arity, ir_node *in[]);
+ir_node *be_new_Keep(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, int arity, ir_node *in[]);
 
-const arch_irn_handler_t *be_node_get_irn_handler(const be_node_factory_t *f);
+ir_node *be_spill(const arch_env_t *arch_env, ir_node *irn,ir_node *spill_ctx);
+ir_node *be_reload(const arch_env_t *arch_env, const arch_register_class_t *cls, ir_node *irn, int pos, ir_mode *mode, ir_node *spill);
 
-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);
+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);
+int be_is_Keep(const ir_node *irn);
 
-ir_node *new_Reload(const be_node_factory_t *factory,
-    const arch_register_class_t *cls,
-    ir_graph *irg, ir_node *bl, ir_node *spill_node);
+void be_set_Spill_offset(ir_node *irn, unsigned offset);
+unsigned be_get_spill_offset(ir_node *irn);
 
-ir_node *new_Perm(const be_node_factory_t *factory,
-    const arch_register_class_t *cls,
-    ir_graph *irg, ir_node *bl, int arity, ir_node **in);
+ir_node *be_get_Spill_context(const ir_node *irn);
 
-ir_node *new_Copy(const be_node_factory_t *factory,
-    const arch_register_class_t *cls,
-    ir_graph *irg, ir_node *block, ir_node *in);
 
-ir_node *be_spill(const be_node_factory_t *factory, const arch_env_t *env, ir_node *irn);
-ir_node *be_reload(const be_node_factory_t *factory, const arch_env_t *env, ir_node *irn);
-
-int is_Spill(const be_node_factory_t *f, const ir_node *irn);
-
-ir_node *get_Reload_Spill(ir_node *reload);
+/**
+ * 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);
 
-void insert_perm(const be_node_factory_t *factory,
-    const arch_register_class_t *reg_class,
-    ir_node *in_front_of);
+/**
+ * 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 arch_env_t *env,
+                                                  const arch_register_class_t *cls,
+                                                  dom_front_info_t *dom_front,
+                                                  ir_node *pos);
 
 #endif /* _BENODE_T_H */