1 files changed, 75 insertions, 0 deletions
diff --git a/include/lld/Core/LLVM.h b/include/lld/Core/LLVM.h
new file mode 100644
index 0000000000000..1bc1173bd48bb
--- /dev/null
+++ b/include/lld/Core/LLVM.h
@@ -0,0 +1,75 @@
+//===--- LLVM.h - Import various common LLVM datatypes ----------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file forward declares and imports various common LLVM datatypes that
+// lld wants to use unqualified.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLD_CORE_LLVM_H
+#define LLD_CORE_LLVM_H
+
+// This should be the only #include, force #includes of all the others on
+// clients.
+#include "llvm/ADT/Hashing.h"
+#include "llvm/Support/Casting.h"
+#include <utility>
+
+namespace llvm {
+  // ADT's.
+  class StringRef;
+  class Twine;
+  class MemoryBuffer;
+  template<typename T> class ArrayRef;
+  template<unsigned InternalLen> class SmallString;
+  template<typename T, unsigned N> class SmallVector;
+  template<typename T> class SmallVectorImpl;
+
+  template<typename T>
+  struct SaveAndRestore;
+
+  template<typename T>
+  class ErrorOr;
+
+  class raw_ostream;
+  // TODO: DenseMap, ...
+}
+
+namespace lld {
+  // Casting operators.
+  using llvm::isa;
+  using llvm::cast;
+  using llvm::dyn_cast;
+  using llvm::dyn_cast_or_null;
+  using llvm::cast_or_null;
+
+  // ADT's.
+  using llvm::StringRef;
+  using llvm::Twine;
+  using llvm::MemoryBuffer;
+  using llvm::ArrayRef;
+  using llvm::SmallString;
+  using llvm::SmallVector;
+  using llvm::SmallVectorImpl;
+  using llvm::SaveAndRestore;
+  using llvm::ErrorOr;
+
+  using llvm::raw_ostream;
+} // end namespace lld.
+
+namespace std {
+template <> struct hash<llvm::StringRef> {
+public:
+  size_t operator()(const llvm::StringRef &s) const {
+    return llvm::hash_value(s);
+  }
+};
+}
+
+#endif