message: Verify the post-merge bitcode before codegen.
diff: @@ -198,6 +198,10 @@ impl LLVMCompiler {
  merged_module.link_in_module(m).unwrap();
  });
  + if self.config().enable_verifier {
  + merged_module.verify().unwrap();
  + }
  +
  let memory_buffer = target_machine
  .write_to_memory_buffer(&merged_module, FileType::Object)
  .unwrap();
  