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Optimize VPI callValueCbs (#4155)

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Co-authored-by: Oleh Maks <olehmaksa@gmail.com>
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Hennadii Chernyshchyk 2023-05-02 14:28:56 +03:00 committed by GitHub
parent 3e986517c3
commit 949be9d0a1
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 23 additions and 23 deletions
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2
docs/CONTRIBUTORS
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@ -43,6 +43,7 @@ Guokai Chen
Gustav Svensk
G-A. Kamendje
Harald Heckmann
Hennadii Chernyshchyk
Howard Su
Huang Rui
Huanghuang Zhou
@ -108,6 +109,7 @@ Mostafa Gamal
Nandu Raj
Nathan Kohagen
Nathan Myers
Oleh Maksymenko
Patrick Stewart
Paul Wright
Pawel Sagan

44
include/verilated_vpi.cpp
View File

@ -165,6 +165,7 @@ class VerilatedVpioVarBase VL_NOT_FINAL : public VerilatedVpio {
protected:
const VerilatedVar* m_varp = nullptr;
const VerilatedScope* m_scopep = nullptr;
std::string m_fullname;
const VerilatedRange& get_range() const {
// Determine number of dimensions and return outermost
return (m_varp->dims() > 1) ? m_varp->unpacked() : m_varp->packed();
@ -173,11 +174,13 @@ protected:
public:
VerilatedVpioVarBase(const VerilatedVar* varp, const VerilatedScope* scopep)
: m_varp{varp}
, m_scopep{scopep} {}
, m_scopep{scopep}
, m_fullname{std::string{m_scopep->name()} + '.' + name()} {}
explicit VerilatedVpioVarBase(const VerilatedVpioVarBase* varp) {
if (varp) {
m_varp = varp->m_varp;
m_scopep = varp->m_scopep;
m_fullname = varp->m_fullname;
}
}
static VerilatedVpioVarBase* castp(vpiHandle h) {
@ -188,11 +191,7 @@ public:
uint32_t size() const override { return get_range().elements(); }
const VerilatedRange* rangep() const override { return &get_range(); }
const char* name() const override { return m_varp->name(); }
const char* fullname() const override {
static thread_local std::string t_out;
t_out = std::string{m_scopep->name()} + "." + name();
return t_out.c_str();
}
const char* fullname() const override { return m_fullname.c_str(); }
};
class VerilatedVpioParam final : public VerilatedVpioVarBase {
@ -646,23 +645,22 @@ public:
continue;
}
VerilatedVpiCbHolder& ho = *it++;
if (VerilatedVpioVar* const varop = VerilatedVpioVar::castp(ho.cb_datap()->obj)) {
void* const newDatap = varop->varDatap();
void* const prevDatap
= varop->prevDatap(); // Was malloced when we added the callback
VL_DEBUG_IF_PLI(VL_DBG_MSGF("- vpi: value_test %s v[0]=%d/%d %p %p\n",
varop->fullname(), *(static_cast<CData*>(newDatap)),
*(static_cast<CData*>(prevDatap)), newDatap,
prevDatap););
if (std::memcmp(prevDatap, newDatap, varop->entSize()) != 0) {
VL_DEBUG_IF_PLI(VL_DBG_MSGF("- vpi: value_callback %" PRId64 " %s v[0]=%d\n",
ho.id(), varop->fullname(),
*(static_cast<CData*>(newDatap))););
update.insert(varop);
vpi_get_value(ho.cb_datap()->obj, ho.cb_datap()->value);
(ho.cb_rtnp())(ho.cb_datap());
called = true;
}
VerilatedVpioVar* const varop = reinterpret_cast<VerilatedVpioVar*>(ho.cb_datap()->obj);
void* const newDatap = varop->varDatap();
void* const prevDatap
= varop->prevDatap(); // Was malloced when we added the callback
VL_DEBUG_IF_PLI(VL_DBG_MSGF("- vpi: value_test %s v[0]=%d/%d %p %p\n",
varop->fullname(), *(static_cast<CData*>(newDatap)),
*(static_cast<CData*>(prevDatap)), newDatap,
prevDatap););
if (std::memcmp(prevDatap, newDatap, varop->entSize()) != 0) {
VL_DEBUG_IF_PLI(VL_DBG_MSGF("- vpi: value_callback %" PRId64 " %s v[0]=%d\n",
ho.id(), varop->fullname(),
*(static_cast<CData*>(newDatap))););
update.insert(varop);
vpi_get_value(ho.cb_datap()->obj, ho.cb_datap()->value);
(ho.cb_rtnp())(ho.cb_datap());
called = true;
}
if (was_last) break;
}