X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbeutil.h;h=122e217fc0238dcf9d40fad23c4dd01ccfdfffa6;hb=23b71abac8014aa6bfee3b47648fdb8fe8687b8f;hp=dcb18b1a66e88cec15682874e63601d77e1b525b;hpb=9b24fe0ec0f4412c790ee4a7c6fc022fd28064a1;p=libfirm

diff --git a/ir/be/beutil.h b/ir/be/beutil.h
index dcb18b1a6..122e217fc 100644
--- a/ir/be/beutil.h
+++ b/ir/be/beutil.h
@@ -2,16 +2,41 @@
 #ifndef _BEUTIL_H
 #define _BEUTIL_H
 
+#include "firm_config.h"
+
 #include <stdio.h>
 
+#include "pset.h"
 #include "irnode.h"
-#include "config.h"
-
 #include "bearch.h"
 
+/**
+ * Get an empty set.
+ * This function always returns the same set.
+ */
+pset *be_empty_set(void);
+
+
 /** Undefine this to disable debugging mode. */
 #define BE_DEBUG 1
 
+/**
+ * Convenient block getter.
+ * Works also, if the given node is a block.
+ * @param  irn The node.
+ * @return The block of the node, or the node itself, if the node is a
+ *         block.
+ */
+static INLINE const ir_node *get_block(const ir_node *irn)
+{
+	return is_Block(irn) ? irn : get_nodes_block(irn);
+}
+
+static INLINE int is_firm_be_mode(const ir_mode *mode)
+{
+	return mode_is_data(mode);
+}
+
 /**
  * Check, if a node produces or consumes a data value.
  * If it does, it is significant for scheduling and register allocation.
@@ -25,13 +50,13 @@ static INLINE int is_data_node(const ir_node *irn)
 	int i, n;
 
 	/* If the node produces a data value, return immediately. */
-	if(mode_is_datab(get_irn_mode(irn)))
+	if(is_firm_be_mode(get_irn_mode(irn)))
 		return 1;
 
 	/* else check, if it takes a data value, if that is so, return */
 	for(i = 0, n = get_irn_arity(irn); i < n; ++i) {
 		ir_node *op = get_irn_n(irn, i);
-		if(mode_is_datab(get_irn_mode(op)))
+		if(is_firm_be_mode(get_irn_mode(op)))
 			return 1;
 	}
 
@@ -55,7 +80,7 @@ void localize_consts(ir_graph *irg);
  */
 void dump_allocated_irg(arch_env_t *env, ir_graph *irg, char *suffix);
 
-
+void be_clear_links(ir_graph *irg);
 
 static INLINE FILE *ffopen(const char *base, const char *ext, const char *mode) {
 	FILE *out;
@@ -77,3 +102,10 @@ static INLINE FILE *ffopen(const char *base, const char *ext, const char *mode)
 void dump_ir_block_graph_sched(ir_graph *irg, const char *suffix);
 
 #endif
+
+/**
+ * Search for an irn in @p accept.
+ * The search is started at @p start_point_exclusive and continues upwards the dom-tree
+ * @return The first node out of accept if found. Else NULL is returned.
+ */
+ir_node *dom_up_search(pset *accept, ir_node *start_point_exclusive);