1 files changed, 47 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CGObjCRuntime.h b/clang/lib/CodeGen/CGObjCRuntime.h
new file mode 100644
index 00000000000..d8fc60f99c0
--- /dev/null
+++ b/clang/lib/CodeGen/CGObjCRuntime.h
@@ -0,0 +1,47 @@
+//===----- CGObjCRuntime.h - Emit LLVM Code from ASTs for a Module --------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This provides an abstract class for Objective-C code generation.  Concrete
+// subclasses of this implement code generation for specific Objective-C
+// runtime libraries.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CLANG_CODEGEN_OBCJRUNTIME_H
+#define CLANG_CODEGEN_OBCJRUNTIME_H
+
+namespace llvm {
+  class LLVMFoldingBuilder;
+  class Constant;
+  class Type;
+  class Value;
+  class Module;
+}
+
+namespace clang {
+namespace CodeGen {
+
+// Implements runtime-specific code generation functions
+class CGObjCRuntime {
+public:
+  virtual ~CGObjCRuntime();
+  
+  // Generate an Objective-C message send operation
+  virtual llvm::Value *generateMessageSend(llvm::LLVMFoldingBuilder &Builder,
+                                           const llvm::Type *ReturnTy,
+                                           llvm::Value *Receiver,
+                                           llvm::Constant *Selector,
+                                           llvm::Value** ArgV,
+                                           unsigned ArgC) = 0;
+};
+
+CGObjCRuntime *CreateObjCRuntime(llvm::Module &M);
+}
+}
+#endif