* change BackendSet from 64bits to 32bits

* fix _MSC_VER error, __lzcnt32->__lzcnt

* fix __GNUC__ error, __builtin_clzl->__builtin_clz

* fix clip_extra code in remove_training_info

* revert rnn opmaker clear

* enable eager mode on xpu, test=kunlun

* add numpy support to xpu

* fix tensor using error

* fix  error, test=kunlun

* fix failed tests, test=kunlun

* clear extra attrs of look_up_table_v2 in opmaker

* fix bug

* remove invoke yaml

* fix ci bugs

* for add_bias

* move_merge_selected_rows

* update code

* add amp yaml

* fix ci bugs

* polish code comments

* polish data_device_transform.cc

* sparse infer_meta

* clear extra attr of some ops in opmaker

* revert clear use_cudnn for pool

* fix test_operator_desc

* fix Attr interface of OperatorBase

* [CodeStyle] trim trailing whitespace in yaml and hook

* python incremental whitespace and yml files

* move sum

* fix ci bugs

* fix ci bugs

* fix set_lod bugs

* fix infershape bugs

* fix ci bugs

* fix ci unittest bug

* fix ci bugs

* perfect code

* update code according comment

* add unittest

* fix ci bugs

* support cast op backward refuse forward

* Fix the bug of high order unit test framework

* Fix TransDataBackend Error when call unsqueeze using MKL Tensor

* Add UT

* Refine UT

* clear extra attr of scale in opmaker

* fix sum bug

* fix merge conflict

* fix minus

* fix linspace error in amp

* fix log

* fix amp error

* clear extra attrs of elementwise op in opmaker

* fix op_debug_string_test

* fix bug of grad_add

* fix sort of runtime attrs

* trim trailing whitespace

* fix `.cmake-format.py`

* revert npu ut changes, avoid npu ci error

* normalize yaml op label

* revert op_compat yaml change

* fix prelu and rnn compat problem

* replace api by op

* clear extra attr of activation op in opmaker

* fix syntax bug

* fix mkldnn kernel

* fix merge conflict

* fix bug