title: Return Void from function LLVM
body: <p>I have created a function in LLVM IR. Now I want to create  a return instruction <code>return void</code>.</p>
  
  <p>I saw the function Create <code>ReturnInst::(LLVMContext &amp;C, Value *retVal, BasicBlock *InsertAtEnd)</code></p>
  
  <p>But I don't know what should <code>retVal</code> should be so that it returns <code>return void</code></p>