Remove the unused function fail_char().

[libfirm] / ir / stat / stat_liveness.c

diff --git a/ir/stat/stat_liveness.c b/ir/stat/stat_liveness.c
index 95872bf..f2f1608 100644 (file)
--- 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)) {
@@ -131,11 +137,14 @@ static void live_end_at_block(ir_node *def, ir_node *block) {
 /**
  * Walker: finds live-outs and calculate live-ins from that.
  */
-static void find_live_outs(ir_node *irn, void *ctx) {
+static void find_live_outs(ir_node *irn, void *ctx)
+{
        ir_mode *mode = get_irn_mode(irn);
        ir_node *block, *use_block;
        int i;
 
+       (void)ctx;
+
        /* only data nodes */
        if (! mode_is_datab(mode))
                return;
@@ -185,7 +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;