* update_c++17

* update_c++17

* fix windows bug

* solve cirle depend

* solve cirle depend

* solve cirle depend

* solve cirle depend

* solve cirle depend

* fix windows bug

* fix compiler error

* fix compiler error

* update eigen3

* update eigen3

* update eigen3

* fix mac-py3 compiler error

* update C++17

* fix mac compiler error

* fix compile error

* fix coverage_compiler error

* fix coverage_ci_problem

* fix coverage_error

* fix_kunlun200 compile error

* fix kunlun200 compiler error

* fix compile error

* fix compiler error

* fix py3 failed test

* fix kunlun200 compiler error

* test

* fix test error

* fix test error

* fix test error

* test

* test

* fix mac py3 error

* fix mac py3 error

* fix mac py3 error

* fix test error

* fix test error

* fix compile error

* fix compile error

* fix compile error

* test

* test

* fix compiler error

* test

* test

* debug on ci

* fix compiler error

* fix compiler error

* test

* fix cinn compiler error

* test

* fix rocm cmpile error

* fix cinn and kunlun compile error

* update c++14

* Update flags.cmake

* Mv eager tests

* fix

* fix build error

* fix build error

* fix codestyle

* fix 'BlasAXPBY unimplemented' error with custom device

* fix utils CmakeLists bug

* make all cpp tests dynamic linked to libpaddle.so

* add comments

* keep old cc_test for some tests

* fix some ut

* make some ut use cc_test_old

* fix typos and fit for win32

* fix lib path

* fix some tests

* skip lite test

* fit for rocm

* fit for cinn

* fit for mac

* fit for win32

* skip inference ut

* skip  windows

* fix coverage

* [Refactor] refactored eager_gen.py PR #2

* [DoubleGrad PR #1] Decoupled code generation logics for Dygraph ForwardFunctions and GradNodes

* Fixed minor issue

* Adjusted logics of GenerateNodeCreationCodes and GenerateForwardDefinition

* Fixed issues

* Supported higher-order grad node generation

* [DoubleGrad PR #4] Supported higher-order GradNode generation

* [DoubleGrad #4] Bug Fixes to Double Grad Node Generation

* Fixed yaml typo

* Fixed yaml typo

* fixed minor issues

* [DoubleGrad PR #5] Enabled gradient computations for grad_tensors passed to paddle.grad()

* Fixed minor issue

* Fixed CI-Inference issue

* Fixed CI-inference issues

* Added GradTensorHolder to Eager Dygraph

* Added accumulation codes to Eager Dygraph

* Added tensor utils to Eager Dygraph

* Resolve compilation issues

* Fixed issues

* Added GradTensorHolder to Eager Dygraph

* Added accumulation codes to Eager Dygraph

* Fix windows-ci issue

* Fix NPU-CI issue

* Fixed CI-Coverage issue

* Add EagerTensor and tests

* remove useless enforce

* remove comment in cmake

* support autograd meta

* support grad node info test

* support grad_node_info

* add more edge test

* remove Python.h

* add tensor wrapper with tests

* support compute require grad and stop gradient

* support sync methods and global utils

* support pure cpu test

* refine error msg

* refine error msg

* refine error info

* fix npu error

* Add EagerTensor and tests

* remove useless enforce

* remove comment in cmake

* support autograd meta

* support grad node info test

* support grad_node_info

* add more edge test

* remove Python.h

* refine error code

* add error type in error msg

* given default null name for tensor

* Add EagerTensor and tests

* remove useless enforce

* remove comment in cmake

* fix test_error

* add depends on python

* Remove python.h

* Merge develop and add Eager tensor with test back

* Add EagerTensor and tests

* remove useless enforce

* remove comment in cmake

* fix test_error

* add depends on python