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Support VPI parameter and localparam (#2370)

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This commit is contained in:
Ludwig Rogiers
2020-06-12 18:38:01 -04:00
committed by GitHub
parent 35226d5e1a
commit c367b671b6
11 changed files with 871 additions and 515 deletions
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src/V3EmitCSyms.cpp
+24 -11
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@@ -332,10 +332,7 @@ class EmitCSyms : EmitCBaseVisitor {
virtual void visit(AstVar* nodep) VL_OVERRIDE {
nameCheck(nodep);
iterateChildren(nodep);
if (nodep->isSigUserRdPublic()
// The VPI functions require a pointer to allow modification,
// but parameters are constants
&& !nodep->isParam()) {
if (nodep->isSigUserRdPublic()) {
m_modVars.push_back(make_pair(m_modp, nodep));
}
}
@@ -794,16 +791,32 @@ void EmitCSyms::emitSymImp() {
}
puts(protect("__Vscope_" + it->second.m_scopeName) + ".varInsert(__Vfinal,");
putsQuoted(protect(it->second.m_varBasePretty));
puts(", &(");
std::string varName;
if (modp->isTop()) {
puts(protectIf(scopep->nameDotless() + "p", scopep->protect()));
puts("->");
varName += (protectIf(scopep->nameDotless() + "p", scopep->protect()) + "->");
} else {
puts(protectIf(scopep->nameDotless(), scopep->protect()));
puts(".");
varName += (protectIf(scopep->nameDotless(), scopep->protect()) + ".");
}
puts(varp->nameProtect());
puts("), ");
if (varp->isParam()) {
varName += protect("var_" + varp->name());
} else {
varName += protect(varp->name());
}
if (varp->isParam() && (varp->vlEnumType() == "VLVT_STRING")) {
puts(", const_cast<void*>(static_cast<const void*>(");
puts(varName.c_str());
puts(".c_str())), ");
} else {
puts(", const_cast<void*>(static_cast<const void*>(&(");
puts(varName.c_str());
puts("))), ");
}
puts(varp->isParam() ? "true" : "false");
puts(", ");
puts(varp->vlEnumType()); // VLVT_UINT32 etc
puts(",");
puts(varp->vlEnumDir()); // VLVD_IN etc