void
cfg_layout_finalize (void)
{
basic_block bb;
#ifdef ENABLE_CHECKING
verify_flow_info ();
#endif
rtl_register_cfg_hooks ();
fixup_fallthru_exit_predecessor ();
fixup_reorder_chain ();
#ifdef ENABLE_CHECKING
verify_insn_chain ();
#endif
free_alloc_pool (cfg_layout_pool);
FOR_BB_BETWEEN (bb, ENTRY_BLOCK_PTR, NULL, next_bb)
bb->rbi = NULL;
break_superblocks ();
#ifdef ENABLE_CHECKING
verify_flow_info ();
#endif
}
/* Frees the alloc_pool, if it is empty and zero *POOL in this case. */
void
free_alloc_pool_if_empty (alloc_pool *pool)
{
if ((*pool)->elts_free == (*pool)->elts_allocated)
{
free_alloc_pool (*pool);
*pool = NULL;
}
}
void cleanup_journal_c(void)
{
zfsd_mutex_lock(&journal_mutex);
#ifdef ENABLE_CHECKING
if (journal_pool->elts_free < journal_pool->elts_allocated)
message(LOG_WARNING, FACILITY_MEMORY,
"Memory leak (%u elements) in journal_pool.\n",
journal_pool->elts_allocated - journal_pool->elts_free);
#endif
free_alloc_pool(journal_pool);
zfsd_mutex_unlock(&journal_mutex);
zfsd_mutex_destroy(&journal_mutex);
}
static unsigned int
copyprop_hardreg_forward (void)
{
struct value_data *all_vd;
basic_block bb;
sbitmap visited;
bool analyze_called = false;
all_vd = XNEWVEC (struct value_data, last_basic_block);
visited = sbitmap_alloc (last_basic_block);
bitmap_clear (visited);
if (MAY_HAVE_DEBUG_INSNS)
debug_insn_changes_pool
= create_alloc_pool ("debug insn changes pool",
sizeof (struct queued_debug_insn_change), 256);
FOR_EACH_BB (bb)
{
bitmap_set_bit (visited, bb->index);
/* If a block has a single predecessor, that we've already
processed, begin with the value data that was live at
the end of the predecessor block. */
/* ??? Ought to use more intelligent queuing of blocks. */
if (single_pred_p (bb)
&& bitmap_bit_p (visited, single_pred (bb)->index)
&& ! (single_pred_edge (bb)->flags & (EDGE_ABNORMAL_CALL | EDGE_EH)))
{
all_vd[bb->index] = all_vd[single_pred (bb)->index];
if (all_vd[bb->index].n_debug_insn_changes)
{
unsigned int regno;
for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
{
if (all_vd[bb->index].e[regno].debug_insn_changes)
{
all_vd[bb->index].e[regno].debug_insn_changes = NULL;
if (--all_vd[bb->index].n_debug_insn_changes == 0)
break;
}
}
}
}
else
init_value_data (all_vd + bb->index);
copyprop_hardreg_forward_1 (bb, all_vd + bb->index);
}
if (MAY_HAVE_DEBUG_INSNS)
{
FOR_EACH_BB (bb)
if (bitmap_bit_p (visited, bb->index)
&& all_vd[bb->index].n_debug_insn_changes)
{
unsigned int regno;
bitmap live;
if (!analyze_called)
{
df_analyze ();
analyze_called = true;
}
live = df_get_live_out (bb);
for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
if (all_vd[bb->index].e[regno].debug_insn_changes)
{
if (REGNO_REG_SET_P (live, regno))
apply_debug_insn_changes (all_vd + bb->index, regno);
if (all_vd[bb->index].n_debug_insn_changes == 0)
break;
}
}
free_alloc_pool (debug_insn_changes_pool);
}
sbitmap_free (visited);
free (all_vd);
return 0;
}