remove strange function (christophs words) and duplicated comments

diff --git a/include/libfirm/cdep.h b/include/libfirm/cdep.h
index 0e7f891..6e7def3 100644 (file)
--- a/include/libfirm/cdep.h
+++ b/include/libfirm/cdep.h
@@ -62,15 +62,8 @@ FIRM_API void exchange_cdep(ir_node *old, const ir_node *nw);
 FIRM_API int is_cdep_on(const ir_node *dependee, const ir_node *candidate);
 
 /**
- * Check whether dependee is (possible iterated) control dependent on candidate.
- *
- * @param dependee   the (possible) dependent block
- * @param candidate  the (possible) block on which dependee is dependent
- */
-FIRM_API int is_iterated_cdep_on(ir_node *dependee, ir_node *candidate);
-
-/**
- * If block is control dependent on exactly one node, return this node, else NULL.
+ * If block is control dependent on exactly one node, return this node,
+ * else NULL.
  *
  * @param block  the block to check
  */

diff --git a/ir/ana/cdep.c b/ir/ana/cdep.c
index 4af268e..c6c2cfc 100644 (file)
--- a/ir/ana/cdep.c
+++ b/ir/ana/cdep.c
@@ -43,13 +43,11 @@ typedef struct cdep_info {
 
 static cdep_info *cdep_data;
 
-/* Return a list of all control dependences of a block. */
 ir_cdep *find_cdep(const ir_node *block)
 {
        return (ir_cdep*) pmap_get(cdep_data->cdep_map, block);
 }
 
-/* Replace the control dependence info of old by the info of nw. */
 void exchange_cdep(ir_node *old, const ir_node *nw)
 {
        ir_cdep *cdep = find_cdep(nw);
@@ -62,9 +60,6 @@ void exchange_cdep(ir_node *old, const ir_node *nw)
 static void add_cdep(ir_node *node, ir_node *dep_on)
 {
        ir_cdep *dep = find_cdep(node);
-#if 0
-       ir_fprintf(stderr, "Adding cdep of %+F on %+F\n", node, dep_on);
-#endif
 
        if (dep == NULL) {
                ir_cdep *newdep = OALLOC(&cdep_data->obst, ir_cdep);
@@ -129,17 +124,6 @@ static int cdep_edge_hook(FILE *F, ir_node *block)
 {
        ir_cdep *cd;
 
-#if 0
-       ir_node *pdom = get_Block_ipostdom(block);
-       if (pdom != NULL) {
-               fprintf(
-                       F,
-                       "edge:{sourcename:\"n%ld\" targetname:\"n%ld\" color:gold}\n",
-                       get_irn_node_nr(pdom), get_irn_node_nr(block)
-               );
-       }
-#endif
-
        for (cd = find_cdep(block); cd != NULL; cd = cd->next) {
                fprintf(
                        F,
@@ -152,7 +136,6 @@ static int cdep_edge_hook(FILE *F, ir_node *block)
        return 0;
 }
 
-/* Compute the control dependence graph for a graph. */
 void compute_cdep(ir_graph *irg)
 {
        ir_node *rem;
@@ -190,7 +173,6 @@ void compute_cdep(ir_graph *irg)
        set_Block_ipostdom(env.start_block, rem);
 }
 
-/* Free the control dependence info. */
 void free_cdep(ir_graph *irg)
 {
        (void) irg;
@@ -202,7 +184,6 @@ void free_cdep(ir_graph *irg)
        }
 }
 
-/* Check whether dependee is (directly) control dependent on candidate. */
 int is_cdep_on(const ir_node *dependee, const ir_node *candidate)
 {
        const ir_cdep *dep;
@@ -213,20 +194,6 @@ int is_cdep_on(const ir_node *dependee, const ir_node *candidate)
        return 0;
 }
 
-/* Check whether dependee is (possible iterated) control dependent on candidate. */
-int is_iterated_cdep_on(ir_node *dependee, ir_node *candidate)
-{
-       const ir_cdep *dep;
-
-       while ((dep = find_cdep(dependee)) != NULL) {
-               if (dep->next != NULL) return 0;
-               if (dep->node == candidate) return 1;
-               dependee = dep->node;
-       }
-       return 0;
-}
-
-/* If block is control dependent on exactly one node, return this node, else NULL. */
 ir_node *get_unique_cdep(const ir_node *block)
 {
        ir_cdep *cdep = find_cdep(block);
@@ -234,7 +201,6 @@ ir_node *get_unique_cdep(const ir_node *block)
        return cdep != NULL && cdep->next == NULL ? cdep->node : NULL;
 }
 
-/* Check if the given block is control dependent of more than one node. */
 int has_multiple_cdep(const ir_node *block)
 {
        ir_cdep *cdep = find_cdep(block);