X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fana%2Firloop.c;h=1722d48034b7b8330c07a2f84c66b5225db68683;hb=ebdaa596d904a0651c8d794481288d2d629bdb3a;hp=d965bc84f912848e897cecb7c726ed36daf9f235;hpb=48b0fa8564962b17e136a0f925eff458ca16abef;p=libfirm

diff --git a/ir/ana/irloop.c b/ir/ana/irloop.c
index d965bc84f..1722d4803 100644
--- a/ir/ana/irloop.c
+++ b/ir/ana/irloop.c
@@ -60,6 +60,9 @@ void add_loop_irg(ir_loop *loop, ir_graph *irg) {
 
 /**
  * Mature all loops by removing the flexible arrays of a loop.
+ *
+ * @param loop  the loop to mature
+ * @param obst  an obstack, where the new arrays are allocated on
  */
 void mature_loops(ir_loop *loop, struct obstack *obst) {
 	loop_element *new_children = DUP_ARR_D(loop_element, obst, loop->children);
@@ -113,7 +116,7 @@ ir_loop *get_loop_son(ir_loop *loop, int pos) {
 }
 
 /* Returns the number of nodes in the loop */
-int get_loop_n_nodes(ir_loop *loop) {
+int get_loop_n_nodes(const ir_loop *loop) {
 	assert(loop); assert(loop->kind == k_ir_loop);
 	return loop->n_nodes;
 }
@@ -121,7 +124,7 @@ int get_loop_n_nodes(ir_loop *loop) {
 /* Returns the pos'th ir_node-child                *
  * TODO: This method isn't very efficient !        *
  * Returns NULL if there isn't a pos'th ir_node   */
-ir_node *get_loop_node(ir_loop *loop, int pos) {
+ir_node *get_loop_node(const ir_loop *loop, int pos) {
 	int child_nr, node_nr = -1;
 
 	assert(loop && loop->kind == k_ir_loop);
@@ -174,7 +177,6 @@ void set_irn_loop(ir_node *n, ir_loop *loop) {
 	n->loop = loop;
 }
 
-/* Uses temporary information to get the loop */
 ir_loop *(get_irn_loop)(const ir_node *n) {
 	return _get_irn_loop(n);
 }
@@ -188,8 +190,6 @@ int get_loop_loop_nr(const ir_loop *loop) {
 #endif
 }
 
-/** A field to connect additional information to a loop.  Only valid
-    if libfirm_debug is set. */
 void set_loop_link(ir_loop *loop, void *link) {
 	assert(loop && loop->kind == k_ir_loop);
 	loop->link = link;
@@ -209,7 +209,7 @@ void (set_irg_loop)(ir_graph *irg, ir_loop *loop) {
 }
 
 /* Returns the root loop info (if exists) for an irg. */
-ir_loop *(get_irg_loop)(ir_graph *irg) {
+ir_loop *(get_irg_loop)(const ir_graph *irg) {
 	return _get_irg_loop(irg);
 }
 
@@ -220,8 +220,7 @@ ir_loop *(get_irg_loop)(ir_graph *irg) {
 ir_loop *alloc_loop(ir_loop *father, struct obstack *obst) {
 	ir_loop *son;
 
-	son = obstack_alloc(obst, sizeof(*son));
-	memset(son, 0, sizeof(*son));
+	son = OALLOCZ(obst, ir_loop);
 	son->kind     = k_ir_loop;
 	son->children = NEW_ARR_F(loop_element, 0);
 	son->n_nodes  = 0;