void
remove_phi_nodes (basic_block bb)
{
gimple_stmt_iterator gsi;
for (gsi = gsi_start_phis (bb); !gsi_end_p (gsi); )
remove_phi_node (&gsi, true);
set_phi_nodes (bb, NULL);
}
void
add_phi_node_to_bb (gimple phi, basic_block bb)
{
gimple_stmt_iterator gsi;
/* Add the new PHI node to the list of PHI nodes for block BB. */
if (phi_nodes (bb) == NULL)
set_phi_nodes (bb, gimple_seq_alloc ());
gsi = gsi_last (phi_nodes (bb));
gsi_insert_after (&gsi, phi, GSI_NEW_STMT);
/* Associate BB to the PHI node. */
gimple_set_bb (phi, bb);
}
void
add_phi_node_to_bb (gimple phi, basic_block bb)
{
gimple_seq seq = phi_nodes (bb);
/* Add the new PHI node to the list of PHI nodes for block BB. */
if (seq == NULL)
set_phi_nodes (bb, gimple_seq_alloc_with_stmt (phi));
else
{
gimple_seq_add_stmt (&seq, phi);
gcc_assert (seq == phi_nodes (bb));
}
/* Associate BB to the PHI node. */
gimple_set_bb (phi, bb);
}