condeval.h added

[libfirm] / ir / common / irtools.h

diff --git a/ir/common/irtools.h b/ir/common/irtools.h
index 53bbe43..2d94611 100644 (file)
--- a/ir/common/irtools.h
+++ b/ir/common/irtools.h
@@ -6,11 +6,11 @@
  * Modified by:
  * Created:
  * CVS-ID:      $Id$
- * Copyright:   (c) 1999-2005 Universität Karlsruhe
+ * Copyright:   (c) 1999-2006 Universität Karlsruhe
  * Licence:     This file protected by GPL -  GNU GENERAL PUBLIC LICENSE.
  */
-#ifndef _IRTOOLS_H_
-#define _IRTOOLS_H_
+#ifndef _FIRM_COMMON_IRTOOLS_H_
+#define _FIRM_COMMON_IRTOOLS_H_
 
 #include "firm_config.h"
 #include "firm_types.h"
@@ -20,11 +20,22 @@
 lc_opt_entry_t *firm_opt_get_root(void);
 #endif
 
+#include "pset.h"
+
 #undef MIN
 #undef MAX
 #define MAX(x, y) ((x) > (y) ? (x) : (y))
 #define MIN(x, y) ((x) < (y) ? (x) : (y))
 
+/**
+ * Three valued compare as demanded by e.g. qsort(3)
+ * @param c A number.
+ * @param d Another number.
+ * @return 0 if c == d, -1 if c < d, 1 if c > d.
+ */
+#define QSORT_CMP(c, d) (((c) > (d)) - ((c) < (d)))
+
+
 /**
  * convert an integer into pointer
  */
@@ -35,6 +46,11 @@ lc_opt_entry_t *firm_opt_get_root(void);
  */
 #define PTR_TO_INT(v)   ((int)((char *)(v) - (char *)0))
 
+/**
+ * Dump a pset containing Firm objects.
+ */
+void firm_pset_dump(pset *set);
+
 /**
  * The famous clear_link() walker-function.
  * Do not implement it by yourself, use this one
@@ -54,4 +70,15 @@ void firm_clear_link(ir_node *n, void *env);
  */
 void copy_irn_to_irg(ir_node *n, ir_graph *irg);
 
-#endif /* _IRTOOLS_H_ */
+/**
+ * Creates an exact copy of a node.
+ * The copy resists on the same graph in the same block.
+ *
+ * @param n   the node to copy
+ *
+ * @note If the copy is not changed, the next CSE operation will
+ *       replace it by the original, so beware.
+ */
+ir_node *exact_copy(const ir_node *n);
+
+#endif /* _FIRM_COMMON_IRTOOLS_H_ */