// A dummy OpKernel for testing.
class DummyCompilableOp : public XlaOpKernel {
 public:
  explicit DummyCompilableOp(OpKernelConstruction* ctx) : XlaOpKernel(ctx) {}
  void Compile(XlaOpKernelContext* ctx) override {
    ctx->SetOutput(0, ctx->Input(0));
  }
};

// Register the DummyCompilableOp kernel for CPU.
REGISTER_OP("InputFloatOp").Output("o: float");