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Throw UNUSED/UNDRIVEN only once per net in a parametrized module.

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This commit is contained in:
Wilson Snyder
2011-01-18 21:28:51 -05:00
parent 481b261458
commit a435ae98f9
7 changed files with 88 additions and 2 deletions
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src/V3Undriven.cpp
+9
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@@ -170,27 +170,36 @@ public:
// thus undriven+unused bits get UNUSED warnings, as they're not as buggy.
if (!unusedMatch(nodep)) {
nodep->v3warn(UNUSED, "Signal is not driven, nor used: "<<nodep->prettyName());
nodep->fileline()->modifyWarnOff(V3ErrorCode::UNUSED, true); // Warn only once
}
} else if (allD && !anyU) {
if (!unusedMatch(nodep)) {
nodep->v3warn(UNUSED, "Signal is not used: "<<nodep->prettyName());
nodep->fileline()->modifyWarnOff(V3ErrorCode::UNUSED, true); // Warn only once
}
} else if (!anyD && allU) {
nodep->v3warn(UNDRIVEN, "Signal is not driven: "<<nodep->prettyName());
nodep->fileline()->modifyWarnOff(V3ErrorCode::UNDRIVEN, true); // Warn only once
} else {
// Bits have different dispositions
bool setU=false; bool setD=false;
if (anynotDU && !unusedMatch(nodep)) {
nodep->v3warn(UNUSED, "Bits of signal are not driven, nor used: "<<nodep->prettyName()
<<bitNames(BN_BOTH));
setU=true;
}
if (anyDnotU && !unusedMatch(nodep)) {
nodep->v3warn(UNUSED, "Bits of signal are not used: "<<nodep->prettyName()
<<bitNames(BN_UNUSED));
setU=true;
}
if (anyUnotD) {
nodep->v3warn(UNDRIVEN, "Bits of signal are not driven: "<<nodep->prettyName()
<<bitNames(BN_UNDRIVEN));
setD=true;
}
if (setU) nodep->fileline()->modifyWarnOff(V3ErrorCode::UNUSED, true); // Warn only once
if (setD) nodep->fileline()->modifyWarnOff(V3ErrorCode::UNDRIVEN, true); // Warn only once
}
}
}