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[IR] Prevent implicit SymbolTableListTraits template instantiation #111600

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Oct 9, 2024
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[IR] Prevent implicit SymbolTableListTraits template instantiation #111600

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9 changes: 9 additions & 0 deletions llvm/include/llvm/IR/SymbolTableListTraits.h
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Original file line number Diff line number Diff line change
Expand Up @@ -106,6 +106,15 @@ class SymbolTableListTraits : public ilist_alloc_traits<ValueSubClass> {
static ValueSymbolTable *toPtr(ValueSymbolTable &R) { return &R; }
};

// The SymbolTableListTraits template is explicitly instantiated for the
// following data types, so add extern template statements to prevent implicit
// instantiation.
extern template class SymbolTableListTraits<BasicBlock>;
extern template class SymbolTableListTraits<Function>;
extern template class SymbolTableListTraits<GlobalAlias>;
extern template class SymbolTableListTraits<GlobalIFunc>;
extern template class SymbolTableListTraits<GlobalVariable>;

/// List that automatically updates parent links and symbol tables.
///
/// When nodes are inserted into and removed from this list, the associated
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