X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fstat%2Fstat_liveness.c;h=f2f16082c84fd981dbf1f88fbc5b756018bf9c34;hb=e39b02362169921f82ac6b1070960dca07dd878b;hp=e98b515c6514330c10445a78634855ae7b9bb6d2;hpb=c8248af523d96133390bdd3362ae32c5d48bb714;p=libfirm

diff --git a/ir/stat/stat_liveness.c b/ir/stat/stat_liveness.c
index e98b515c6..f2f16082c 100644
--- a/ir/stat/stat_liveness.c
+++ b/ir/stat/stat_liveness.c
@@ -44,7 +44,7 @@ struct block_entry_t {
 struct environment_t {
 	struct obstack obst;
 	block_entry_t *entries;  /**< List of all allocated block entries. */
-	void          *visited;  /**< a Bitset to mark visited nodes */
+	bitset_t      *visited;  /**< a Bitset to mark visited nodes */
 };
 
 static environment_t *env;
@@ -52,11 +52,12 @@ static environment_t *env;
 /**
  * Get the block entry or allocate one if not yet assigned.
  */
-static block_entry_t *get_block_entry(ir_node *block) {
-	block_entry_t *entry = get_irn_link(block);
+static block_entry_t *get_block_entry(ir_node *block)
+{
+	block_entry_t *entry = (block_entry_t*)get_irn_link(block);
 
 	if (entry == NULL) {
-		entry = obstack_alloc(&env->obst, sizeof(*entry));
+		entry = OALLOC(&env->obst, block_entry_t);
 
 		entry->live_ins  = NEW_ARR_F(ir_node *, 0);
 		entry->live_outs = NEW_ARR_F(ir_node *, 0);
@@ -67,11 +68,13 @@ static block_entry_t *get_block_entry(ir_node *block) {
 	return entry;
 }
 
-static void add_entry(ir_node ***arr, ir_node *irn) {
+static void add_entry(ir_node ***arr, ir_node *irn)
+{
 	ir_node **list = *arr;
-	int i;
+	size_t i;
 
-	for (i = ARR_LEN(list) - 1; i >= 0; --i) {
+	for (i = ARR_LEN(list); i > 0;) {
+		--i;
 		if (list[i] == irn) {
 			/* already there */
 			return;
@@ -80,13 +83,15 @@ static void add_entry(ir_node ***arr, ir_node *irn) {
 	ARR_APP1(ir_node *, *arr, irn);
 }
 
-static void add_live_in(ir_node *block, ir_node *irn) {
+static void add_live_in(ir_node *block, ir_node *irn)
+{
 	block_entry_t *entry = get_block_entry(block);
 
 	add_entry(&entry->live_ins, irn);
 }
 
-static void add_live_out(ir_node *block, ir_node *irn) {
+static void add_live_out(ir_node *block, ir_node *irn)
+{
 	block_entry_t *entry = get_block_entry(block);
 
 	add_entry(&entry->live_outs, irn);
@@ -100,7 +105,8 @@ static void add_live_out(ir_node *block, ir_node *irn) {
  * @param def      The node (value).
  * @param block    The block to mark the value live out of.
  */
-static void live_end_at_block(ir_node *def, ir_node *block) {
+static void live_end_at_block(ir_node *def, ir_node *block)
+{
 	add_live_out(block, def);
 
 	if (is_irn_constlike(def)) {
@@ -188,7 +194,8 @@ static void find_live_outs(ir_node *irn, void *ctx)
  * Calculate the live-in and live out of blocks for datab nodes.
  * Use it to estimate register pressure.
  */
-void stat_liveness(ir_graph *irg) {
+void stat_liveness(ir_graph *irg)
+{
 	environment_t genv;
 	block_entry_t *p;