CVS:

[libfirm] / ir / ir / irgmod.h

diff --git a/ir/ir/irgmod.h b/ir/ir/irgmod.h
index 513a011..36c4fd8 100644 (file)
--- a/ir/ir/irgmod.h
+++ b/ir/ir/irgmod.h
@@ -3,51 +3,24 @@
 **
 ** Authors: Martin Trapp, Christian Schaefer
 **
-** irgmod.h: ir graph modification*/
+** irgmod.h: ir graph modification
+*/
 
-# include "irgraph.h"
-# include "ircons.h"
-# include "array.h"
-# include "misc.h"
+# ifndef _IRGMOD_H_
+# define _IRGMOD_H_
 
-/* ir_node *arg_access (ir_mode *mode, long proj); */
+# include "irnode.h"
 
-
-inline ir_node *get_r_value_internal (ir_node *block, int pos, ir_mode *mode);
-
-
-/** Needed only during ir_graph construction. Should all go into
-    ircons.ch **/
-
-/* Read a store.
-   Use this function to get the most recent version of the store (type M).
-   Internally it does the same as get_value. */
-ir_node *get_store (void);
-
-/* write a store */
-void set_store (ir_node *store);
-
-/* add a control flow edge */
-void add_in_edge (ir_node *block, ir_node *jmp);
-
-/* read a value from the array with the local variables */
-ir_node *get_value (int pos, ir_mode *mode);
-
-/* write a value in the array with the local variables */
-void set_value (int pos, ir_node *value);
-
-/* fixes the number of predecessors of a block. */
-void mature_block (ir_node *block);
-
-/* sets current block */
-void switch_block (ir_node *target);
-
-
-/** always useful, e.g. for optimizations.  **/
-/* turns a node into a tuple. The tuples predecessors have to be
-   set by hand. */
+/* Turns a node into a "useless" Tuple.  The Tuple node just forms a tuple
+   from several inputs.  The predecessors of the tuple have to be
+   set by hand.
+   This is useful if a node returning a tuple is removed, but the Projs
+   extracting values from the tuple are not available. */
 void turn_into_tuple (ir_node *node, int arity);
 
-/* exchanges two nodes by conserving edges leaving old (i.e., pointers
-   pointing to old. */
+/* Exchanges two nodes by conserving edges leaving old (i.e., pointers
+   pointing to old).  Turns the old node into an Id. Requires that
+   current_ir_graph is set properly. */
 inline void exchange (ir_node *old, ir_node *new);
+
+#endif /* ifndef _IRGMOD_H_ */