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Support unpacked array port in protect-lib and hierarchical verilation (#2672)

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* Add a test to use unpacked array port in hierarchical verilation and protect-lib.

* V3EmitV supports unpacked array variables

* Can Emit local unpacked array properly

* Update golden of t_debug_emitv

* Support unpacked array port in protect-lib

* Remove t_prot_lib_unpacked_bad test as unpacked array is supported now.
This commit is contained in:
Yutetsu TAKATSUKASA
2020-12-09 08:29:45 +09:00
committed by GitHub
parent c23de458ed
commit ff3d35ca61
15 changed files with 223 additions and 108 deletions
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src/V3Task.cpp
+39 -3
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@@ -1676,9 +1676,45 @@ string V3Task::assignInternalToDpi(AstVar* portp, bool isPtr, const string& frSu
return stmt;
}
bool V3Task::dpiToInternalFrStmt(AstVar* portp, const string& frName, string& frstmt,
string& ket) {
return TaskDpiUtils::dpiToInternalFrStmt(portp, frName, frstmt, ket);
string V3Task::assignDpiToInternal(const string& lhsName, AstVar* varp) {
// Create assignment from DPI temporary into internal format
// DPI temporary is scalar or 1D array (if unpacked array)
// Internal representation is scalar, 1D, or multi-dimensional array (similar to SV)
const string frName = varp->name();
string frstmt;
string ket;
const bool useSetWSvlv = TaskDpiUtils::dpiToInternalFrStmt(varp, frName, frstmt, ket);
const std::vector<std::pair<AstUnpackArrayDType*, int>> dimStrides
= TaskDpiUtils::unpackDimsAndStrides(varp->dtypep());
const int total = dimStrides.empty()
? 1
: dimStrides.front().first->elementsConst() * dimStrides.front().second;
const int widthWords = varp->basicp()->widthWords();
string statements;
for (int i = 0; i < total; ++i) {
string lhs = lhsName;
// extract a scalar from multi-dimensional array (internal format)
for (auto&& dimStride : dimStrides) {
const size_t dimIdx = (i / dimStride.second) % dimStride.first->elementsConst();
lhs += "[" + cvtToStr(dimIdx) + "]";
}
// extract a scalar from DPI temporary var that is scalar or 1D array
if (useSetWSvlv) {
statements += frstmt + ket + " " + lhs + ", " + frName + " + "
+ cvtToStr(i * widthWords) + ");\n";
} else {
string rhs = frstmt;
if (!dimStrides.empty()) {
// e.g. time is 64bit svLogicVector
const int coef = varp->basicp()->isDpiLogicVec() ? widthWords : 1;
rhs += "[" + cvtToStr(i * coef) + "]";
}
rhs += ket;
statements += lhs + " = " + rhs + ";\n";
}
}
return statements;
}
const char* V3Task::dpiTemporaryVarSuffix() {