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Cleanup unneeded vectors in a delay after initialization. 

For a delay we do not know exactly what type we will be propagating
until the initialization event has happened. Because of this we
allocate both a vec4 and a vec8 value. Once the initialization event
has happened we can free the unneeded element(s).
This commit is contained in:
Cary R 2011-11-06 09:39:20 -08:00 committed by Stephen Williams
parent b1869f80ab
commit f415c744ad
1 changed files with 7 additions and 2 deletions
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9
vvp/delay.cc
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@ -279,6 +279,7 @@ void vvp_fun_delay::recv_vec4(vvp_net_ptr_t port, const vvp_vector4_t&bit,
bits (the order the bits are changed is not deterministic). */
if (initial_) {
type_ = VEC4_DELAY;
cur_vec8_ = vvp_vector8_t(vvp_vector4_t(0, BIT4_X), 6, 6);
vvp_bit4_t cur_val = cur_vec4_.value(0);
use_delay = delay_.get_delay(cur_val, bit.value(0));
for (unsigned idx = 1 ; idx < bit.size() ; idx += 1) {
@ -341,6 +342,7 @@ void vvp_fun_delay::recv_vec8(vvp_net_ptr_t port, const vvp_vector8_t&bit)
bits (the order the bits are changed is not deterministic). */
if (initial_) {
type_ = VEC8_DELAY;
cur_vec4_ = vvp_vector4_t(0, BIT4_X);
vvp_bit4_t cur_val = cur_vec8_.value(0).value();
use_delay = delay_.get_delay(cur_val, bit.value(0).value());
for (unsigned idx = 1 ; idx < bit.size() ; idx += 1) {
@ -426,8 +428,11 @@ void vvp_fun_delay::recv_real(vvp_net_ptr_t port, double bit,
return;
}
if (initial_) type_ = REAL_DELAY;
else assert(type_ == REAL_DELAY);
if (initial_) {
type_ = REAL_DELAY;
cur_vec4_ = vvp_vector4_t(0, BIT4_X);
cur_vec8_ = vvp_vector8_t(cur_vec4_, 6, 6);
} else assert(type_ == REAL_DELAY);
vvp_time64_t use_delay;
use_delay = delay_.get_min_delay();