static gimple
resize_phi_node (gimple phi, size_t len)
{
size_t old_size, i;
gimple new_phi;
gcc_assert (len > gimple_phi_capacity (phi));
/* The garbage collector will not look at the PHI node beyond the
first PHI_NUM_ARGS elements. Therefore, all we have to copy is a
portion of the PHI node currently in use. */
old_size = sizeof (struct gimple_statement_phi)
+ (gimple_phi_num_args (phi) - 1) * sizeof (struct phi_arg_d);
new_phi = allocate_phi_node (len);
memcpy (new_phi, phi, old_size);
for (i = 0; i < gimple_phi_num_args (new_phi); i++)
{
use_operand_p imm, old_imm;
imm = gimple_phi_arg_imm_use_ptr (new_phi, i);
old_imm = gimple_phi_arg_imm_use_ptr (phi, i);
imm->use = gimple_phi_arg_def_ptr (new_phi, i);
relink_imm_use_stmt (imm, old_imm, new_phi);
}
new_phi->gimple_phi.capacity = len;
for (i = gimple_phi_num_args (new_phi); i < len; i++)
{
use_operand_p imm;
gimple_phi_arg_set_location (new_phi, i, UNKNOWN_LOCATION);
imm = gimple_phi_arg_imm_use_ptr (new_phi, i);
imm->use = gimple_phi_arg_def_ptr (new_phi, i);
imm->prev = NULL;
imm->next = NULL;
imm->loc.stmt = new_phi;
}
return new_phi;
}
static void
resize_phi_node (tree *phi, int len)
{
int old_size, i;
tree new_phi;
gcc_assert (len > PHI_ARG_CAPACITY (*phi));
/* The garbage collector will not look at the PHI node beyond the
first PHI_NUM_ARGS elements. Therefore, all we have to copy is a
portion of the PHI node currently in use. */
old_size = (sizeof (struct tree_phi_node)
+ (PHI_NUM_ARGS (*phi) - 1) * sizeof (struct phi_arg_d));
new_phi = allocate_phi_node (len);
memcpy (new_phi, *phi, old_size);
for (i = 0; i < PHI_NUM_ARGS (new_phi); i++)
{
use_operand_p imm, old_imm;
imm = &(PHI_ARG_IMM_USE_NODE (new_phi, i));
old_imm = &(PHI_ARG_IMM_USE_NODE (*phi, i));
imm->use = &(PHI_ARG_DEF_TREE (new_phi, i));
relink_imm_use_stmt (imm, old_imm, new_phi);
}
PHI_ARG_CAPACITY (new_phi) = len;
for (i = PHI_NUM_ARGS (new_phi); i < len; i++)
{
use_operand_p imm;
imm = &(PHI_ARG_IMM_USE_NODE (new_phi, i));
imm->use = &(PHI_ARG_DEF_TREE (new_phi, i));
imm->prev = NULL;
imm->next = NULL;
imm->stmt = new_phi;
}
*phi = new_phi;
}