Lift EmitTargetBuiltinExpr out of EmitBuiltinExpr.

llvm-svn: 57335
diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h
index 8058c34..ca499d8 100644
--- a/clang/lib/CodeGen/CodeGenFunction.h
+++ b/clang/lib/CodeGen/CodeGenFunction.h
@@ -418,6 +418,10 @@
   
   RValue EmitBuiltinExpr(unsigned BuiltinID, const CallExpr *E);
 
+  /// EmitTargetBuiltinExpr - Emit the given builtin call. Returns 0
+  /// if the call is unhandled by the current target.
+  llvm::Value *EmitTargetBuiltinExpr(unsigned BuiltinID, const CallExpr *E);
+
   llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E);
   llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E);