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[ThinLTO][LowerTypeTests] Don't compute address taken set unless CFI (NFC) #118508

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Merged
merged 1 commit into from
Dec 3, 2024
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[ThinLTO][LowerTypeTests] Don't compute address taken set unless CFI (NFC) #118508

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23 changes: 11 additions & 12 deletions llvm/lib/Transforms/IPO/LowerTypeTests.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2090,20 +2090,19 @@ bool LowerTypeTestsModule::lower() {
};
MapVector<StringRef, ExportedFunctionInfo> ExportedFunctions;
if (ExportSummary) {
// A set of all functions that are address taken by a live global object.
DenseSet<GlobalValue::GUID> AddressTaken;
for (auto &I : *ExportSummary)
for (auto &GVS : I.second.SummaryList)
if (GVS->isLive())
for (const auto &Ref : GVS->refs()) {
AddressTaken.insert(Ref.getGUID());
for (auto &RefGVS : Ref.getSummaryList())
if (auto Alias = dyn_cast<AliasSummary>(RefGVS.get()))
AddressTaken.insert(Alias->getAliaseeGUID());
}

NamedMDNode *CfiFunctionsMD = M.getNamedMetadata("cfi.functions");
if (CfiFunctionsMD) {
// A set of all functions that are address taken by a live global object.
DenseSet<GlobalValue::GUID> AddressTaken;
for (auto &I : *ExportSummary)
for (auto &GVS : I.second.SummaryList)
if (GVS->isLive())
for (const auto &Ref : GVS->refs()) {
AddressTaken.insert(Ref.getGUID());
for (auto &RefGVS : Ref.getSummaryList())
if (auto Alias = dyn_cast<AliasSummary>(RefGVS.get()))
AddressTaken.insert(Alias->getAliaseeGUID());
}
for (auto *FuncMD : CfiFunctionsMD->operands()) {
assert(FuncMD->getNumOperands() >= 2);
StringRef FunctionName =
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