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Support default value on module input (#5358) (#5373)

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This commit is contained in:
Drew Ranck
2024-08-15 10:04:07 -04:00
committed by GitHub
parent 563faeb33f
commit 48c71ef76c
22 changed files with 524 additions and 27 deletions
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src/V3LinkParse.cpp
+6 -3
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@@ -371,9 +371,12 @@ class LinkParseVisitor final : public VNVisitor {
FileLine* const fl = nodep->valuep()->fileline();
if (nodep->isParam() || (m_ftaskp && nodep->isNonOutput())) {
// 1. Parameters and function inputs: It's a default to use if not overridden
} else if (!m_ftaskp && !VN_IS(m_modp, Class) && nodep->isNonOutput()) {
nodep->v3warn(E_UNSUPPORTED, "Unsupported: Default value on module input: "
<< nodep->prettyNameQ());
} else if (!m_ftaskp && !VN_IS(m_modp, Class) && nodep->isNonOutput()
&& !nodep->isInput()) {
// Module inout/ref/constref: const default to use
nodep->v3warn(E_UNSUPPORTED,
"Unsupported: Default value on module inout/ref/constref: "
<< nodep->prettyNameQ());
nodep->valuep()->unlinkFrBack()->deleteTree();
} // 2. Under modules/class, it's an initial value to be loaded at time 0 via an
// AstInitial