Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/CodeGen/DwarfStringPoolEntry.h b/linux-x64/clang/include/llvm/CodeGen/DwarfStringPoolEntry.h
new file mode 100644
index 0000000..e6c0483
--- /dev/null
+++ b/linux-x64/clang/include/llvm/CodeGen/DwarfStringPoolEntry.h
@@ -0,0 +1,53 @@
+//===- llvm/CodeGen/DwarfStringPoolEntry.h - String pool entry --*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CODEGEN_DWARFSTRINGPOOLENTRY_H
+#define LLVM_CODEGEN_DWARFSTRINGPOOLENTRY_H
+
+#include "llvm/ADT/StringMap.h"
+
+namespace llvm {
+
+class MCSymbol;
+
+/// Data for a string pool entry.
+struct DwarfStringPoolEntry {
+ MCSymbol *Symbol;
+ unsigned Offset;
+ unsigned Index;
+};
+
+/// String pool entry reference.
+struct DwarfStringPoolEntryRef {
+ const StringMapEntry<DwarfStringPoolEntry> *I = nullptr;
+
+public:
+ DwarfStringPoolEntryRef() = default;
+ explicit DwarfStringPoolEntryRef(
+ const StringMapEntry<DwarfStringPoolEntry> &I)
+ : I(&I) {}
+
+ explicit operator bool() const { return I; }
+ MCSymbol *getSymbol() const {
+ assert(I->second.Symbol && "No symbol available!");
+ return I->second.Symbol;
+ }
+ unsigned getOffset() const { return I->second.Offset; }
+ unsigned getIndex() const { return I->second.Index; }
+ StringRef getString() const { return I->first(); }
+ /// Return the entire string pool entry for convenience.
+ DwarfStringPoolEntry getEntry() const { return I->getValue(); }
+
+ bool operator==(const DwarfStringPoolEntryRef &X) const { return I == X.I; }
+ bool operator!=(const DwarfStringPoolEntryRef &X) const { return I != X.I; }
+};
+
+} // end namespace llvm
+
+#endif