1 files changed, 84 insertions, 0 deletions
diff --git a/include/llvm/IR/GlobalIndirectSymbol.h b/include/llvm/IR/GlobalIndirectSymbol.h
new file mode 100644
index 0000000000000..8edb3d1dbf4b3
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+++ b/include/llvm/IR/GlobalIndirectSymbol.h
@@ -0,0 +1,84 @@
+//===- llvm/GlobalIndirectSymbol.h - GlobalIndirectSymbol class -*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains the declaration of the GlobalIndirectSymbol class, which
+// is a base class for GlobalAlias and GlobalIFunc. It contains all common code
+// for aliases and ifuncs.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_IR_GLOBALINDIRECTSYMBOL_H
+#define LLVM_IR_GLOBALINDIRECTSYMBOL_H
+
+#include "llvm/IR/GlobalValue.h"
+#include "llvm/IR/OperandTraits.h"
+
+namespace llvm {
+
+class GlobalIndirectSymbol : public GlobalValue {
+  void operator=(const GlobalIndirectSymbol &) = delete;
+  GlobalIndirectSymbol(const GlobalIndirectSymbol &) = delete;
+
+protected:
+  GlobalIndirectSymbol(Type *Ty, ValueTy VTy, unsigned AddressSpace,
+      LinkageTypes Linkage, const Twine &Name, Constant *Symbol);
+
+public:
+  // allocate space for exactly one operand
+  void *operator new(size_t s) {
+    return User::operator new(s, 1);
+  }
+
+  /// Provide fast operand accessors
+  DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
+
+  /// These methods set and retrieve indirect symbol.
+  void setIndirectSymbol(Constant *Symbol) {
+    setOperand(0, Symbol);
+  }
+  const Constant *getIndirectSymbol() const {
+    return const_cast<GlobalIndirectSymbol *>(this)->getIndirectSymbol();
+  }
+  Constant *getIndirectSymbol() {
+    return getOperand(0);
+  }
+
+  const GlobalObject *getBaseObject() const {
+    return const_cast<GlobalIndirectSymbol *>(this)->getBaseObject();
+  }
+  GlobalObject *getBaseObject() {
+    return dyn_cast<GlobalObject>(getIndirectSymbol()->stripInBoundsOffsets());
+  }
+
+  const GlobalObject *getBaseObject(const DataLayout &DL, APInt &Offset) const {
+    return const_cast<GlobalIndirectSymbol *>(this)->getBaseObject(DL, Offset);
+  }
+  GlobalObject *getBaseObject(const DataLayout &DL, APInt &Offset) {
+    return dyn_cast<GlobalObject>(
+        getIndirectSymbol()->stripAndAccumulateInBoundsConstantOffsets(DL,
+                                                                       Offset));
+  }
+
+  // Methods for support type inquiry through isa, cast, and dyn_cast:
+  static inline bool classof(const Value *V) {
+    return V->getValueID() == Value::GlobalAliasVal ||
+           V->getValueID() == Value::GlobalIFuncVal;
+  }
+};
+
+template <>
+struct OperandTraits<GlobalIndirectSymbol> :
+  public FixedNumOperandTraits<GlobalIndirectSymbol, 1> {
+};
+
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(GlobalIndirectSymbol, Constant)
+
+} // End llvm namespace
+
+#endif