Hi,
also this code ignores counts and probabilities:
/* Rewire the entry and exit blocks. The successor to the entry
block turns into the successor of DEST_FN's ENTRY_BLOCK_PTR in
the child function. Similarly, the predecessor of DEST_FN's
EXIT_BLOCK_PTR turns into the predecessor of EXIT_BLOCK_PTR. We
need to switch CFUN between DEST_CFUN and SAVED_CFUN so that the
various CFG manipulation function get to the right CFG.
FIXME, this is silly. The CFG ought to become a parameter to
these helpers. */
push_cfun (dest_cfun);
make_edge (ENTRY_BLOCK_PTR_FOR_FN (cfun), entry_bb, EDGE_FALLTHRU);
if (exit_bb)
make_edge (exit_bb, EXIT_BLOCK_PTR_FOR_FN (cfun), 0);
pop_cfun ();
/* Back in the original function, the SESE region has disappeared,
create a new basic block in its place. */
bb = create_empty_bb (entry_pred[0]);
if (current_loops)
add_bb_to_loop (bb, loop);
for (i = 0; i < num_entry_edges; i++)
{
e = make_edge (entry_pred[i], bb, entry_flag[i]);
e->probability = entry_prob[i];
}
for (i = 0; i < num_exit_edges; i++)
{
e = make_edge (bb, exit_succ[i], exit_flag[i]);
e->probability = exit_prob[i];
}
Finally I am somewhat concerned about move_block_to_fn.
The frequencies in one function may have different base from other function,
so they may need rescaling.
Honza
