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Support VPI interface references (#8081)

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This commit is contained in:
Todd Strader
2026-09-12 05:38:20 -04:00
committed by GitHub
parent 4aeb3dbc5a
commit 0c574618d0
26 changed files with 1244 additions and 28 deletions
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src/V3Interface.cpp
+11 -3
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@@ -1,6 +1,6 @@
// -*- mode: C++; c-file-style: "cc-mode" -*-
//*************************************************************************
// DESCRIPTION: Verilator: Interface references for tracing
// DESCRIPTION: Verilator: Interface references for tracing and VPI
//
// Code available from: https://verilator.org
//
@@ -64,7 +64,12 @@ class InlineIntfRefVisitor final : public VNVisitor {
if ((cellp = VN_CAST(fromVarp->user1p(), Cell)) || (cellp = irdtp->cellp())) {
varp->user1p(cellp);
const string alias = m_scope + "__DOT__" + pinp->name();
cellp->addIntfRefsp(new AstIntfRef{pinp->fileline(), alias});
// Prefer the port's own dtype; the source may have no modport
const AstIfaceRefDType* const portIrdtp = VN_CAST(varp->dtypep(), IfaceRefDType);
const string modportName
= portIrdtp ? portIrdtp->modportName() : irdtp->modportName();
cellp->addIntfRefsp(
new AstIntfRef{pinp->fileline(), alias, pinp->name(), modportName});
}
}
@@ -92,7 +97,10 @@ class InlineIntfRefVisitor final : public VNVisitor {
string alias;
if (!m_scope.empty()) alias = m_scope + "__DOT__";
alias += varlp->name();
cellp->addIntfRefsp(new AstIntfRef{varlp->fileline(), alias});
const AstIfaceRefDType* const lirdtp = VN_CAST(varlp->dtypep(), IfaceRefDType);
const string modportName = lirdtp ? lirdtp->modportName() : "";
cellp->addIntfRefsp(
new AstIntfRef{varlp->fileline(), alias, varlp->origName(), modportName});
}
//--------------------
void visit(AstNodeExpr*) override {} // Accelerate