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IR: Remove dead code in metadata bitcode writing, NFC
No one cares how many uses each metadata value has, so don't bother counting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220337 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -756,13 +756,13 @@ static void WriteMDNode(const MDNode *N,
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static void WriteModuleMetadata(const Module *M,
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const ValueEnumerator &VE,
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BitstreamWriter &Stream) {
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const ValueEnumerator::ValueList &Vals = VE.getMDValues();
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const auto &Vals = VE.getMDValues();
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bool StartedMetadataBlock = false;
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unsigned MDSAbbrev = 0;
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SmallVector<uint64_t, 64> Record;
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for (unsigned i = 0, e = Vals.size(); i != e; ++i) {
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if (const MDNode *N = dyn_cast<MDNode>(Vals[i].first)) {
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if (const MDNode *N = dyn_cast<MDNode>(Vals[i])) {
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if (!N->isFunctionLocal() || !N->getFunction()) {
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if (!StartedMetadataBlock) {
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Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3);
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@ -770,7 +770,7 @@ static void WriteModuleMetadata(const Module *M,
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}
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WriteMDNode(N, VE, Stream, Record);
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}
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} else if (const MDString *MDS = dyn_cast<MDString>(Vals[i].first)) {
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} else if (const MDString *MDS = dyn_cast<MDString>(Vals[i])) {
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if (!StartedMetadataBlock) {
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Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3);
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@ -509,12 +509,10 @@ void ValueEnumerator::EnumerateMetadata(const Value *MD) {
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// Check to see if it's already in!
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unsigned &MDValueID = MDValueMap[MD];
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if (MDValueID) {
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// Increment use count.
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MDValues[MDValueID-1].second++;
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if (MDValueID)
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return;
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}
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MDValues.push_back(std::make_pair(MD, 1U));
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MDValues.push_back(MD);
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MDValueID = MDValues.size();
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// Enumerate all non-function-local operands.
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@ -533,12 +531,10 @@ void ValueEnumerator::EnumerateFunctionLocalMetadata(const MDNode *N) {
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// Check to see if it's already in!
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unsigned &MDValueID = MDValueMap[N];
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if (MDValueID) {
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// Increment use count.
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MDValues[MDValueID-1].second++;
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if (MDValueID)
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return;
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}
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MDValues.push_back(std::make_pair(N, 1U));
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MDValues.push_back(N);
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MDValueID = MDValues.size();
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// To incoroporate function-local information visit all function-local
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@ -766,7 +762,7 @@ void ValueEnumerator::purgeFunction() {
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for (unsigned i = NumModuleValues, e = Values.size(); i != e; ++i)
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ValueMap.erase(Values[i].first);
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for (unsigned i = NumModuleMDValues, e = MDValues.size(); i != e; ++i)
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MDValueMap.erase(MDValues[i].first);
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MDValueMap.erase(MDValues[i]);
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for (unsigned i = 0, e = BasicBlocks.size(); i != e; ++i)
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ValueMap.erase(BasicBlocks[i]);
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@ -58,7 +58,7 @@ private:
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typedef UniqueVector<const Comdat *> ComdatSetType;
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ComdatSetType Comdats;
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ValueList MDValues;
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std::vector<const Value *> MDValues;
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SmallVector<const MDNode *, 8> FunctionLocalMDs;
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ValueMapType MDValueMap;
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@ -134,7 +134,7 @@ public:
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}
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const ValueList &getValues() const { return Values; }
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const ValueList &getMDValues() const { return MDValues; }
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const std::vector<const Value *> &getMDValues() const { return MDValues; }
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const SmallVectorImpl<const MDNode *> &getFunctionLocalMDValues() const {
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return FunctionLocalMDs;
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}
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