“e02537f9f7dcd51ca3ad8db556c67f57500f126f”上不存在“paddle/phi/kernels/cpu/trunc_grad_kernel.cc”
* Chage `IndicateDataType` to `GetKernelType`. Make it easier to understand. * Change `OpKernelKey` to `OpKernelType` * Make operator developers can customize which kernel the operator will use in runtime.