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Support FSM detection in primitive wrappers (#7607)

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This commit is contained in:
Yogish Sekhar
2026-05-21 13:50:31 -04:00
committed by GitHub
parent 6a74112f0b
commit f282335600
30 changed files with 3636 additions and 89 deletions
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src/V3Control.cpp
+39
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@@ -227,8 +227,10 @@ class V3ControlModule final {
V3ControlVarResolver m_params; // Parameters in module
V3ControlVarResolver m_ports; // Ports in module
V3ControlVarResolver m_vars; // Variables in module
V3Control::FsmRegisterWrapper m_fsmRegisterWrapper; // FSM wrapper descriptor
std::unordered_set<std::string> m_coverageOffBlocks; // List of block names for coverage_off
std::set<VPragmaType> m_modPragmas; // List of Pragmas for modules
bool m_hasFsmRegisterWrapper = false; // Whether descriptor has been set
bool m_inline = false; // Whether to force the inline
bool m_inlineValue = false; // The inline value (on/off)
@@ -240,6 +242,10 @@ public:
m_params.update(m.m_params);
m_ports.update(m.m_ports);
m_vars.update(m.m_vars);
if (m.m_hasFsmRegisterWrapper) {
m_fsmRegisterWrapper = m.m_fsmRegisterWrapper;
m_hasFsmRegisterWrapper = true;
}
for (const string& i : m.m_coverageOffBlocks) m_coverageOffBlocks.insert(i);
if (!m_inline) {
m_inline = m.m_inline;
@@ -261,6 +267,18 @@ public:
m_inline = true;
m_inlineValue = set;
}
void setFsmRegisterWrapper(FileLine* fl, const V3Control::FsmRegisterWrapper& desc) {
if (m_hasFsmRegisterWrapper) {
fl->v3warn(BADVLTPRAGMA, "Duplicate fsm_register_wrapper descriptor for module "
<< AstNode::prettyNameQ(desc.moduleName)
<< "; replacing previous descriptor");
}
m_fsmRegisterWrapper = desc;
m_hasFsmRegisterWrapper = true;
}
const V3Control::FsmRegisterWrapper* fsmRegisterWrapperp() const {
return m_hasFsmRegisterWrapper ? &m_fsmRegisterWrapper : nullptr;
}
void addModulePragma(VPragmaType pragma) { m_modPragmas.insert(pragma); }
void apply(AstNodeModule* modp) {
@@ -877,6 +895,23 @@ void V3Control::addHierWorkers(FileLine* fl, const string& model, int workers) {
V3ControlResolver::s().addHierWorkers(fl, model, workers);
}
void V3Control::addFsmRegisterWrapper(FileLine* fl, const string& module, const string& d,
const string& q, const string& clock,
const string& reset, const string& resetValue) {
string missing;
if (module.empty()) missing += "-module";
if (d.empty()) missing = VString::dot(missing, ", ", "-d");
if (q.empty()) missing = VString::dot(missing, ", ", "-q");
if (clock.empty()) missing = VString::dot(missing, ", ", "-clock");
if (!missing.empty()) {
fl->v3error("fsm_register_wrapper missing " << missing);
return;
}
const FsmRegisterWrapper desc{module, d, q, clock, reset, resetValue};
V3ControlResolver::s().modules().at(module).setFsmRegisterWrapper(fl, desc);
}
void V3Control::addIgnore(V3ErrorCode code, bool on, const string& filename, int min, int max) {
UINFO(9, "addIgnore " << code << " " << min << "-" << max << " fn=" << filename);
if (filename == "*") { // For "lint_off/lint_on [--rule x]"
@@ -1066,6 +1101,10 @@ int V3Control::getHierWorkers(const string& model) {
FileLine* V3Control::getHierWorkersFileLine(const string& model) {
return V3ControlResolver::s().getHierWorkersFileLine(model);
}
const V3Control::FsmRegisterWrapper* V3Control::getFsmRegisterWrapper(const string& module) {
V3ControlModule* const modp = V3ControlResolver::s().modules().resolve(module);
return modp ? modp->fsmRegisterWrapperp() : nullptr;
}
uint64_t V3Control::getProfileData(const string& hierDpi) {
return V3ControlResolver::s().getProfileData(hierDpi);
}