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Support systemc_interface and related inside class`.

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This commit is contained in:
Wilson Snyder
2025-03-28 22:40:21 -04:00
parent 6edf2f80a2
commit b4ef6ce860
13 changed files with 175 additions and 52 deletions
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src/V3EmitCBase.cpp
+36 -20
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@@ -285,27 +285,43 @@ void EmitCBaseVisitorConst::emitModCUse(const AstNodeModule* modp, VUseType useT
if (nl) puts("\n");
}
std::pair<string, FileLine*> EmitCBaseVisitorConst::textSection(const AstNodeModule* modp,
VNType type) {
if (!v3Global.hasSCTextSections()) return std::make_pair("", nullptr);
string text;
FileLine* fl = nullptr;
int last_line = -999;
for (AstNode* nodep = modp->stmtsp(); nodep; nodep = nodep->nextp()) {
if (nodep->type() != type) continue;
if (const AstNodeText* const textp = VN_CAST(nodep, NodeText)) {
if (text.empty()) {
fl = textp->fileline();
text += "\n";
if (v3Global.opt.decoration())
text += "\n//*** Below code from `systemc in Verilog file\n";
}
if (last_line + 1 != nodep->fileline()->lineno() && v3Global.opt.decoration())
text += "// From `systemc at " + nodep->fileline()->ascii() + "\n";
last_line = textp->fileline()->lineno();
text += textp->text();
}
}
if (!text.empty()) {
if (v3Global.opt.decoration()) text += "//*** Above code from `systemc in Verilog file\n";
text += "\n";
// Substitute `systemc_class_name
string::size_type pos;
while ((pos = text.find("`systemc_class_name")) != string::npos) {
text.replace(pos, std::strlen("`systemc_class_name"),
EmitCBase::prefixNameProtect(modp));
}
}
return std::make_pair(text, fl);
}
void EmitCBaseVisitorConst::emitTextSection(const AstNodeModule* modp, VNType type) {
// Short circuit if nothing to do. This can save a lot of time on large designs as this
// function needs to traverse the entire module linearly.
if (!v3Global.hasSCTextSections()) return;
int last_line = -999;
for (AstNode* nodep = modp->stmtsp(); nodep; nodep = nodep->nextp()) {
if (const AstNodeText* const textp = VN_CAST(nodep, NodeText)) {
if (nodep->type() == type) {
if (last_line != nodep->fileline()->lineno()) {
if (last_line < 0) {
putns(nodep, "\n//*** Below code from `systemc in Verilog file\n");
}
putsDecoration(nodep, ifNoProtect("// From `systemc at "
+ nodep->fileline()->ascii() + "\n"));
last_line = nodep->fileline()->lineno();
}
ofp()->putsNoTracking(textp->text());
last_line++;
}
}
}
if (last_line > 0) puts("//*** Above code from `systemc in Verilog file\n\n");
auto textAndFileline = textSection(modp, type);
if (!textAndFileline.first.empty()) ofp()->putsNoTracking(textAndFileline.first);
}