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[NFC][DecoderEmitter] Remove unused emitPredicateMatchAux #158771

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Merged
merged 1 commit into from
Sep 16, 2025
Merged

[NFC][DecoderEmitter] Remove unused emitPredicateMatchAux #158771

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37 changes: 0 additions & 37 deletions llvm/utils/TableGen/DecoderEmitter.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -515,9 +515,6 @@ class DecoderTableBuilder {

unsigned getPredicateIndex(StringRef P) const;

bool emitPredicateMatchAux(const Init &Val, bool ParenIfBinOp,
raw_ostream &OS) const;

bool emitPredicateMatch(raw_ostream &OS, unsigned EncodingID) const;

void emitPredicateTableEntry(unsigned EncodingID) const;
Expand Down Expand Up @@ -1099,40 +1096,6 @@ unsigned DecoderTableBuilder::getDecoderIndex(unsigned EncodingID) const {
return std::distance(Decoders.begin(), P);
}

// If ParenIfBinOp is true, print a surrounding () if Val uses && or ||.
bool DecoderTableBuilder::emitPredicateMatchAux(const Init &Val,
bool ParenIfBinOp,
raw_ostream &OS) const {
if (const auto *D = dyn_cast<DefInit>(&Val)) {
if (!D->getDef()->isSubClassOf("SubtargetFeature"))
return true;
OS << "Bits[" << Target.getName() << "::" << D->getAsString() << "]";
return false;
}
if (const auto *D = dyn_cast<DagInit>(&Val)) {
std::string Op = D->getOperator()->getAsString();
if (Op == "not" && D->getNumArgs() == 1) {
OS << '!';
return emitPredicateMatchAux(*D->getArg(0), true, OS);
}
if ((Op == "any_of" || Op == "all_of") && D->getNumArgs() > 0) {
bool Paren = D->getNumArgs() > 1 && std::exchange(ParenIfBinOp, true);
if (Paren)
OS << '(';
ListSeparator LS(Op == "any_of" ? " || " : " && ");
for (auto *Arg : D->getArgs()) {
OS << LS;
if (emitPredicateMatchAux(*Arg, ParenIfBinOp, OS))
return true;
}
if (Paren)
OS << ')';
return false;
}
}
return true;
}

// Returns true if there was any predicate emitted.
bool DecoderTableBuilder::emitPredicateMatch(raw_ostream &OS,
unsigned EncodingID) const {
Expand Down