rtx
get_hard_reg_initial_val (enum machine_mode mode, unsigned int regno)
{
struct initial_value_struct *ivs;
rtx rv;
rv = has_hard_reg_initial_val (mode, regno);
if (rv)
return rv;
ivs = crtl->hard_reg_initial_vals;
if (ivs == 0)
{
ivs = ggc_alloc_initial_value_struct ();
ivs->num_entries = 0;
ivs->max_entries = 5;
ivs->entries = ggc_alloc_vec_initial_value_pair (5);
crtl->hard_reg_initial_vals = ivs;
}
if (ivs->num_entries >= ivs->max_entries)
{
ivs->max_entries += 5;
ivs->entries = GGC_RESIZEVEC (initial_value_pair, ivs->entries,
ivs->max_entries);
}
ivs->entries[ivs->num_entries].hard_reg = gen_rtx_REG (mode, regno);
ivs->entries[ivs->num_entries].pseudo = gen_reg_rtx (mode);
return ivs->entries[ivs->num_entries++].pseudo;
}
static void
set_constant_entry (CPool *cpool, int index, int tag, jword value)
{
if (cpool->data == NULL)
{
cpool->capacity = 100;
cpool->tags = ggc_cleared_vec_alloc<uint8> (cpool->capacity);
cpool->data = ggc_cleared_vec_alloc<cpool_entry> (cpool->capacity);
cpool->count = 1;
}
if (index >= cpool->capacity)
{
int old_cap = cpool->capacity;
cpool->capacity *= 2;
if (index >= cpool->capacity)
cpool->capacity = index + 10;
cpool->tags = GGC_RESIZEVEC (uint8, cpool->tags, cpool->capacity);
cpool->data = GGC_RESIZEVEC (union cpool_entry, cpool->data,
cpool->capacity);
/* Make sure GC never sees uninitialized tag values. */
memset (cpool->tags + old_cap, 0, cpool->capacity - old_cap);
memset (cpool->data + old_cap, 0,
(cpool->capacity - old_cap) * sizeof (union cpool_entry));
}
