Heavy changes. 1st attempt for 1-phi-algo implemented.

[libfirm] / ir / be / bephicongr_t.h

diff --git a/ir/be/bephicongr_t.h b/ir/be/bephicongr_t.h
index b09d0fe..a747a87 100644 (file)
--- a/ir/be/bephicongr_t.h
+++ b/ir/be/bephicongr_t.h
@@ -6,13 +6,15 @@
 #ifndef _BEPHICONGR_T_H
 #define _BEPHICONGR_T_H
 
-#include "irnode.h"
 #include "pset.h"
-
+#include "irnode.h"
 
 typedef struct _phi_info_t {
-       ir_node *phi;                              /* only set in args of phi nodes (which could be a phi itslef). Points to a phi node or NULL */
-       pset *phi_class;               /* only set in phi nodes. A set containing the members of the phi congruence class this phi node belongs to */
+       ir_node *phi;           /**< For all nodes of a phi class points to a phi node
+                                                        representing the phi class and holding the ptr to
+                                                        the pset phi_class      or NULL */
+       pset *phi_class;        /**< Only set in phi nodes. A set containing the members
+                                                        of the phi congruence class this phi node represents */
 } phi_info_t;
 
 extern size_t phi_irn_data_offset;
@@ -23,11 +25,8 @@ extern size_t phi_irn_data_offset;
  * A non zero value results in splitting phi congruence
  * classes at all const nodes (except they do share
  * some non-const nodes too)
- *
- * A non zero value can only be set if copies of const
- * nodes are placed correctly.
  */
-#define CONSTS_SPLIT_PHI_CLASSES 1
+#define CONSTS_SPLIT_PHI_CLASSES 0
 #define get_irn_phi_info(irn)   get_irn_data(irn, phi_info_t, phi_irn_data_offset)
 #define get_phi_class(irn)      get_irn_phi_info(irn)->phi_class /* Only for phi nodes */