assert inst = builder.send(op, LLVM::Int32.from_i(0), LLVM::Int32.from_i(1))
          assert_instance_of LLVM::Int32, inst
          assert_equal "i32 0", inst.to_s

          assert inst = builder.send(op, LLVM::Int32.from_i(0), LLVM::Int32.from_i(0))